Patent Publication Number: US-10328730-B2

Title: Recording apparatus

Description:
BACKGROUND 
     1. Technical Field 
     The present invention relates to a recording apparatus which is provided with a housing which configures at least a portion of the outside of an apparatus main body which includes a recorder which performs recording on a medium, and a lid body which opens and closes at least a portion of a top portion of the apparatus main body and is capable of tilting. 
     2. Related Art 
     A recording apparatus which performs recording on a medium is integrally provided with a recording mechanism unit which performs recording on a medium, and a reading mechanism unit which reads a document, and a medium supply port for supplying a medium to the recording mechanism unit is provided on a rear top portion of the apparatus main body (for example, refer to JP-A-2011-20828, JP-A-2005-253037, and JP-A-2011-20454). 
     In the recording apparatus which is described in JP-A-2011-20828, JP-A-2005-253037, and JP-A-2011-20454, a lid body which opens and closes a medium supply port is provided as an example of the lid body, and it is possible to close the lid body when the recording apparatus is not in use. Furthermore, the lid body is configured to function as a medium support which supports the medium which is fed from the medium supply port. Hereinafter, the lid body which opens and closes the medium supply port will be referred to as a medium supply port cover to distinguish the lid body from other lid bodies. 
     As an example of the lid body, the recording apparatus which is described in JP-A-2011-20828 is provided with a lid body which opens and closes a document stand. The document stand is provided on a scanner unit which corresponds to the reading mechanism unit. Hereinafter, this lid body will be referred to as a document cover. 
     A medium supply port cover which covers the medium supply port is provided on the medium supply port, and when the recording mechanism unit is not in use, it is possible to cover the medium supply port using the medium supply port cover, and it is possible to prevent the falling of foreign matter into the medium supply port. 
     However, in a case in which an image which is read using the reading mechanism unit is recorded on a recording medium using the recording mechanism unit, the reading mechanism unit is operated in a state in which the medium supply port cover is opened to open the medium supply port. 
     When the reading mechanism unit or the document cover tilts with respect to the top portion of the recording mechanism unit to open and close in a state in which a clip or the like is placed on the top surface of the reading mechanism unit, the clip or the like may fall into the medium supply port which is provided on the rear top portion of the recording apparatus main body as foreign matter. 
     Therefore, there is a case in which a regulating member which prevents the falling of foreign matter into the medium supply port is provided. 
     A lid body which is similar to that described above opens and closes through tilting around a tilting shaft. In this configuration, a gap between the lid body and the housing of the apparatus, more specifically, a gap between an end portion of the opposite side of the lid body from a free end side (an end portion of the tilting shaft side: hereinafter referred to as “tilting shaft side end portion”) and the housing becomes a gap which is necessary for the lid body to tilt. When this gap is not present, the tilting shaft side end portion of the lid body comes into contact with the housing, and the lid body is not capable of tilting any further. However, when the gap between the tilting shaft side end portion of the lid body and the housing is too large, this leads to dust and the like easily infiltrating the inner portion of the apparatus, and is unfavorable from the perspective of the external appearance of the apparatus. It is also unfavorable from the perspective of the external appearance of the apparatus to provide the tilting shaft of the lid body such that the tilting shaft is exposed to the outside of the apparatus in order to avoid the problem which is described above. 
     The recording apparatus which is described in JP-A-2005-253037 is provided with a foreign matter falling prevention cover which prevents the falling of foreign matter into the medium supply port, and is configured such that when the scanner unit is opened from the state in which the medium supply port cover is closed, the foreign matter falling prevention cover comes into contact with the bottom surface of the medium supply port cover, pushes up the medium supply port cover, and the distal end side of the medium supply port cover lifts up. According to this configuration, in the recording apparatus which is described in JP-A-2005-253037, damage to the medium supply port cover which is caused by the scanner unit opening in a state in which the medium supply port cover is closed is prevented. 
     However, depending on the user, there is a case in which an operation of opening the scanner unit is performed in a state in which the document cover which is provided on the scanner unit is opened. In this case, there is a case in which the medium supply port cover closes the document cover against the will of the user. Since the medium supply port cover assumes an angular posture so as to come into contact with the document cover, the medium supply port cover may be damaged by the opening of the scanner unit. 
     On the other hand, it is considered to greatly separate the medium supply port cover from the document cover such that the two do not interfere with each other in order to avoid the problem which is described above; however, in this case, a large gap is formed between the two in the state in which both are closed, and this is unfavorable from the perspective of external appearance. 
     SUMMARY 
     An advantage of some aspects of the invention is to provide a recording apparatus which is capable of suitably opening and closing a lid body while maintaining a small gap between a tilting shaft side end portion of a lid body and a housing. Another advantage of some aspects of the invention is to suppress or avoid damage to at least one of the covers without greatly separating the covers from each other in a recording apparatus which is provided with a medium supply port cover which opens and closes a medium supply port and a document cover which opens and closes a document stand. Still another advantage of some aspects of the invention is to provide a recording apparatus which is capable of achieving both a suppression of falling of foreign matter into the medium supply port and securing ease of use in the area of the medium supply port. 
     According to an aspect of the invention, a recording apparatus includes a housing which configures at least a portion of an outside of an apparatus main body which is provided with a recorder which performs recording on a medium, a lid body which opens and closes at least a portion of a top portion of the apparatus main body and is capable of tilting, and a tilting shaft of the lid body, in which the tilting shaft is capable of being displaced in a direction intersecting an axial line direction of the tilting shaft, and in which the lid body is capable of tilting from a closed state in which a gap between the housing and an end portion of an opposite side from a free end side is filled to an opened state by the displacement of the tilting shaft. 
     According to this aspect, the tilting shaft of the lid body which opens and closes at least a portion of the top portion of the apparatus main body and is capable of tilting is capable of being displaced in a direction which intersects the axial line direction, and the lid body is capable of tilting from a closed state in which a gap between the end portion of the opposite side from the free end side and the housing is filled to an opened state by the displacement of the tilting shaft, and so it is possible to suitably open and close the lid body while maintaining a small gap between the housing and the tilting shaft side end portion of the lid body. 
     In the recording apparatus, the tilting shaft may be configured using a hinge member which is provided to be capable of sliding in a direction including a vertical direction component with respect to the apparatus main body. 
     According to this aspect, the tilting shaft is configured using a hinge member which is provided to be capable of sliding in a direction including a vertical direction component with respect to the apparatus main body, and so it is possible to realize a configuration in which the tilting shaft is displaced in a direction which intersects the axial line direction with a simple structure and at low cost. 
     In the recording apparatus, the hinge member may be biased in a direction including a vertical downward direction component by a biasing unit. 
     According to this aspect, since the hinge member is biased in a direction including a vertical downward direction component by a biasing unit, it is possible to maintain a state in which the gap between the lid body and the housing is filled, that is, it is possible to maintain a state which is favorable from the perspective of external appearance. 
     In the recording apparatus, a plurality of pairs of the hinge member and the biasing unit may be provided along a tilting axial line direction of the lid body, and a biasing force of the biasing unit may be set to a magnitude at which the lid body is tilted without the hinge member which is in a position close to a side portion lifting up using the hinge member which is in a distant position from the side portion as a fulcrum when lifting up the side portion of the lid body in the tilting axial line direction to open the lid body. 
     According to this aspect, a plurality of the hinge members are provided along a tilting axial line direction of the lid body, and a biasing force of the biasing unit is set to a magnitude at which the lid body is tilted without the hinge member which is in a position close to a side portion lifting up using the hinge member which is in a distant position from the side portion as a fulcrum when lifting up the side portion of the lid body in the tilting axial line direction to open the lid body, and so it is possible to suitably open the lid body when the user lifts up the side portion of the lid body in the tilting axial line direction to open the lid body. 
     In the recording apparatus, the hinge member may be provided on an inside of the housing, and the hinge member may be concealed on an inside of the housing when the lid body is closed. 
     According to this aspect, since the hinge member is concealed on an inside of the housing when the lid body is closed, it is possible to improve the external appearance of the recording apparatus in a state in which the lid body is closed. 
     In the recording apparatus, the hinge member may be provided with a spring member which biases the lid body in a closing direction when the lid body is opened at an opening angle from a closed state to a predetermined opening angle, and biases the lid body in an opening direction when the lid body is further opened at the opening angle in a range from the predetermined opening angle to a further opened state. 
     According to this aspect, since the hinge member may be provided with a spring member which biases the lid body in a closing direction when the lid body is opened at an opening angle in a range from a closed state to a predetermined opening angle, and biases the lid body in an opening direction when the lid body is further opened at an opening angle in a range from the predetermined opening angle to a further opened state, the ease of use is improved during opening and closing of the lid body. 
     According to another aspect, a recording apparatus includes a medium supply port which is provided on a top portion of an apparatus main body to be capable of setting a medium therethrough, the apparatus main body being provided with a recorder which performs recording on the medium, a reading mechanism unit which is provided on the top portion of the apparatus main body to be capable of opening and closing and which reads a document, a medium supply port cover which opens and closes the medium supply port and is provided on the apparatus main body, and a document cover which is a cover which opens and closes a document stand with which the reading mechanism unit is provided, has a same opening direction as the medium supply port cover, and is provided on the reading mechanism unit, in which the document cover and the medium supply port cover are in a positional relationship in which a distal end of the medium supply port cover comes into contact with the document cover in a process in which the reading mechanism unit is opened from a state in which the reading mechanism unit and the medium supply port cover are closed and the document cover is opened, and the document cover applies an external force to the medium supply port cover in the opening direction. 
     According to this aspect, the document cover and the medium supply port cover are in a positional relationship in which a distal end of the medium supply port cover comes into contact with the document cover in a process in which the reading mechanism unit is opened from a state in which the reading mechanism unit and the medium supply port cover are closed and the document cover is opened, and the document cover applies an external force to the medium supply port cover in the opening direction, and so it is possible to suppress or avoid damage to the medium supply port cover when opening the reading mechanism unit from a state in which the reading mechanism unit and the medium supply port cover are closed and the document cover is opened. As a result, it is no longer necessary to greatly separate the document cover from the medium supply port cover, and it is possible to realize a favorable external appearance of the apparatus. 
     In the recording apparatus, in the process in which the reading mechanism unit is opened from a state in which the reading mechanism unit and the medium supply port cover are closed and the document cover is opened, a repulsive force which the document cover receives from the medium supply port cover may not exceed a magnitude which is necessary for closing the document cover. 
     According to this aspect, in the process in which the reading mechanism unit is opened from a state in which the reading mechanism unit and the medium supply port cover are closed and the document cover is opened, a repulsive force which the document cover receives from the medium supply port cover may not exceed a magnitude which is necessary for closing the document cover, and so it is possible to avoid a problem of unintentionally closing the document cover in the process in which the reading mechanism unit is opened from a state in which the reading mechanism unit and the medium supply port cover are closed and the document cover is opened. 
     The recording apparatus may further include a rocking member which is capable of engaging with the document cover and the medium supply port cover and is capable of rocking, in which the rocking member may be configured to rock to push up the medium supply port cover when the document cover is opened from a state in which the reading mechanism unit, and the document cover and the medium supply port cover are closed. 
     According to this aspect, since the rocking member is configured to rock to push up the medium supply port cover when the document cover is opened from a state in which the reading mechanism unit, and the document cover and the medium supply port cover are closed, it is possible to render the contact angle of the medium supply port cover with respect to the document cover less acute when opening the reading mechanism unit by also opening the medium supply port cover by a certain degree in advance when the document cover is opened. 
     As a result, it is possible to more reliably suppress or avoid damage to the medium supply port cover when the reading mechanism unit is opened from a state in which the reading mechanism unit, and the document cover and the medium supply port cover are closed. 
     In the recording apparatus, in the process in which the reading mechanism unit is opened from a state in which the reading mechanism unit and the medium supply port cover are closed and the document cover is opened, an angle from a contact position at which the medium supply port cover comes into contact with the document cover, formed between a top surface of the document cover of a tilting shaft side of the document cover and a top surface of the medium supply port cover may be an acute angle. 
     According to this aspect, in the process in which the reading mechanism unit is opened from a state in which the reading mechanism unit and the medium supply port cover are closed and the document cover is opened, an angle from a contact position at which the medium supply port cover comes into contact with the document cover, formed between a top surface of the document cover of a tilting shaft side of the document cover and a top surface of the medium supply port cover is an acute angle, and so it is possible to more smoothly open the medium supply port cover, and as a result, it is possible to more reliably suppress or avoid damage to the medium supply port cover. 
     In the recording apparatus, a first inclined surface may be formed on a distal end of the medium supply port cover, a second inclined surface which faces the first inclined surface may be formed on a base end side of the document cover, and when the reading mechanism unit is opened from a state in which the reading mechanism unit, the document cover, and the medium supply port cover are closed, the second inclined surface may be provided to push up the first inclined surface in a direction in which the medium supply port cover opens. 
     According to this aspect, when the reading mechanism unit is opened from a state in which the reading mechanism unit, the document cover, and the medium supply port cover are closed, the second inclined surface is provided with a configuration to push up the first inclined surface in a direction in which the medium supply port cover opens, and so it is possible to suppress or avoid damage to the medium supply port cover when the reading mechanism unit is opened from a state in which the reading mechanism unit, the document cover, and the medium supply port cover are closed. 
     In the recording apparatus, in plan view of the document cover and the medium supply port cover, at least a portion of the second inclined surface may overlap the first inclined surface. 
     According to this aspect, since in plan view of the document cover and the medium supply port cover, at least a portion of the second inclined surface overlaps the first inclined surface, it is possible to realize a favorable external appearance of the apparatus without the inside of the document cover and the medium supply port cover, that is, the top portion of the apparatus main body being exposed in plan view of the document cover and the medium supply port cover. 
     In the recording apparatus, a reading mechanism unit which reads a document and a medium supply port which it capable of setting the medium through the medium supply port may be included on a top portion of the apparatus main body, the lid body may open and close the medium supply port, the reading mechanism unit may include a document cover which opens and closes a document stand on which the document is placed and has a same opening direction as the lid body, the lid body and the document cover may have widths corresponding to a horizontal width of the apparatus main body and a top surface of the lid body and a top surface of the document cover may form the same surface, and an end portion of an opposite side from the free end side of the lid body and a rear surface of the apparatus main body may form the same surface. 
     According to this aspect, it is possible to obtain a recording apparatus with an excellent external appearance. 
     In the recording apparatus, a reading mechanism unit which reads a document and a medium supply port which is capable of supplying the medium may be included on a top portion of the apparatus main body, the reading mechanism unit may include a document cover which opens and closes a document stand on which a document is placed, the lid body may open and close the medium supply port, and the recording apparatus may further include a regulating member which is capable of assuming a storage state in which the regulating member is positioned on an inside of the lid body and is closed in a state in which the lid body is closed, and a regulating state in which the regulating member opens together with an opening operation of the lid body and forms a surface which intersects a top surface of the document cover to regulate slipping and falling of an object from a top surface of the document cover into the medium supply port, and a biasing member which biases the regulating member from the storage state to the regulating state. 
     According to this aspect, since the regulating member is biased by the biasing member from the storage state to the regulating state, it is possible to transition the regulating member from the storage state to the regulating state together with the opening and closing of the lid body. 
     Therefore, in the state in which the lid body and the medium supply port are opened, regardless of the opening/closing state of the document cover, the regulating member always assumes the regulating state, that is, the state in which the falling of foreign matter into the medium supply port is regulated, and it is possible to more reliably suppress or avoid the falling of foreign matter into the medium supply port. 
     The recording apparatus may further include a regulating member which is capable of assuming a storage state in which the regulating member is positioned on an inside of the medium supply port cover and is closed in a state in which the medium supply port cover is closed, and a regulating state in which the regulating member opens together with an opening operation of the medium supply port and forms a surface which intersects a top surface of the document cover to regulate slipping and falling of an object from a top surface of the document cover into the medium supply port, and a biasing member which biases the regulating member from the storage state to the regulating state. 
     According to this aspect, since the regulating member is biased by the biasing member from the storage state to the regulating state, it is possible to transition the regulating member from the storage state to the regulating state together with the opening and closing of the medium supply port cover. Therefore, in the state in which the medium supply port cover and the medium supply port are opened, regardless of the opening/closing state of the document cover, the regulating member always assumes the regulating state, that is, the state in which the falling of foreign matter into the medium supply port is regulated, and it is possible to more reliably suppress or avoid the falling of foreign matter into the medium supply port. 
     In the recording apparatus, the regulating member may be configured to be capable of switching between the storage state and the regulating state by tilting. 
     According to this aspect, it is possible to realize a configuration which switches between the storage state and the regulating state with a simple structure. 
     In the recording apparatus, the regulating member may be configured to be capable of switching between the storage state and the regulating state by tilting. 
     According to this aspect, it is possible to realize a configuration which switches between the storage state and the regulating state with a simple structure. 
     In the recording apparatus, the regulating member may be provided with an induction portion with which the lid body comes into contact and which leads the regulating member to the storage state when the lid body is changed from an opened state to a closed state. 
     According to this aspect, due to the regulating member being provided with the induction portion, it is possible to smoothly transition the regulating member to the storage state using the change from the opened state to the closed state of the lid body. 
     In the recording apparatus, the regulating member may be provided with an induction portion with which the medium supply port cover comes into contact and which leads the regulating member to the storage state when the medium supply port cover is changed from an opened state to a closed state. 
     According to this aspect, due to the regulating member being provided with the induction portion, it is possible to smoothly transition the regulating member to the storage state using the change from the opened state to the closed state of the medium supply port cover. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention will be described with reference to the accompanying drawings, wherein like numbers reference like elements. 
         FIG. 1  is an external perspective diagram of a printer according to an embodiment. 
         FIG. 2  is an external perspective diagram of the printer according to the embodiment as viewed from the rear surface side. 
         FIG. 3  is a perspective diagram illustrating a state in which a paper output tray is extended to the front of the apparatus in the printer according to the embodiment. 
         FIG. 4  is a lateral sectional diagram illustrating a medium transport path in the printer according to the embodiment. 
         FIG. 5  is a perspective diagram illustrating a state in which a document cover is opened with respect to a reading mechanism unit in the printer. 
         FIG. 6  is a perspective diagram illustrating a state in which the medium supply port cover is opened with respect to the apparatus main body on the rear surface side of the apparatus main body. 
         FIG. 7  is a perspective diagram illustrating a state in which the medium supply port cover in  FIG. 6  is removed. 
         FIG. 8  is a perspective diagram of the medium supply port cover. 
         FIG. 9  is a perspective diagram illustrating a sliding surface which is provided on the medium supply port cover. 
         FIG. 10  is a lateral sectional diagram illustrating the medium supply port cover in a state of being closed with respect to the apparatus main body. 
         FIG. 11  is a perspective diagram of a hinge member. 
         FIG. 12  is a perspective diagram of the hinge member. 
         FIG. 13  is a lateral sectional diagram illustrating a state in which the medium supply port cover is tilted with respect to the apparatus main body. 
         FIG. 14  is a lateral sectional diagram illustrating a state in which the medium supply port cover is tilted with respect to the apparatus main body to incline the medium supply port cover to the apparatus rear surface side. 
         FIG. 15  is a lateral sectional diagram illustrating a state of a spring member which is provided in the hinge member in a state in which the medium supply port cover is closed. 
         FIG. 16  is a lateral sectional diagram illustrating a state of the spring member which is provided in the hinge member in a state in which the medium supply port cover is opened. 
         FIG. 17  is an external perspective diagram of a printer according to an embodiment. 
         FIG. 18  is a perspective diagram of a state in which a paper output tray in the printer according to the embodiment is extended. 
         FIG. 19  is a lateral sectional diagram illustrating a medium transport path in the printer according to the embodiment. 
         FIG. 20  is a perspective diagram illustrating a state in which a document cover in the printer is opened. 
         FIG. 21  is a perspective diagram of the document cover. 
         FIG. 22  is a perspective diagram of a hinge member which connects a reading mechanism unit and the document cover. 
         FIG. 23  is a perspective diagram of the hinge member. 
         FIG. 24  is a perspective diagram illustrating a state in which a medium supply port cover in the printer is opened. 
         FIG. 25  is a lateral sectional diagram illustrating a state in which the medium supply port in the printer is closed. 
         FIG. 26  is a lateral sectional diagram illustrating a state in which the medium supply port in the printer is opened. 
         FIG. 27  is an external perspective diagram illustrating a state in which the reading mechanism unit in the printer is opened. 
         FIG. 28  is a side surface diagram illustrating a relationship between the document cover and the medium supply port cover in a state in which the reading mechanism unit is closed. 
         FIG. 29  is a side surface diagram illustrating a relationship between the document cover and the medium supply port cover in a state in which the reading mechanism unit is tilted. 
         FIG. 30  is a side surface diagram illustrating a relationship between the document cover and the medium supply port cover in a state in which the reading mechanism unit is tilted. 
         FIG. 31  is a lateral sectional diagram illustrating a state before a rocking member is rocked. 
         FIG. 32  is a perspective diagram of a top portion of the apparatus main body in a state before the rocking member is rocked. 
         FIG. 33  is a lateral sectional diagram illustrating a state after the rocking member is rocked. 
         FIG. 34  is a perspective diagram of the top portion of the apparatus main body in a state after the rocking member is rocked. 
         FIG. 35  is a perspective diagram illustrating a state in which the rocking member lifts up the medium supply port cover in a second state. 
         FIG. 36  is a lateral sectional diagram illustrating a state in which the reading mechanism unit is tilted in a state in which the document cover is opened. 
         FIG. 37  is a lateral sectional diagram illustrating a state in which the reading mechanism unit is tilted from the state of  FIG. 36  further to the apparatus rear surface side. 
         FIG. 38  is a side surface diagram illustrating a relationship between the document cover and the medium supply port cover according to a second example. 
         FIG. 39  is a schematic diagram of the configuration of the medium supply port cover in the second example. 
         FIG. 40  is a side surface diagram illustrating a relationship between the document cover and the medium supply port cover when the reading mechanism unit is tilted in a state in which the document cover in the second example is opened. 
         FIG. 41  is an external perspective diagram of a printer according to an embodiment. 
         FIG. 42  is a perspective diagram representing a state in which a manual cover in the printer according to the embodiment is opened. 
         FIG. 43  is a perspective diagram illustrating a state in which a cover of a reading mechanism unit in the printer according to the embodiment is opened. 
         FIG. 44  is a perspective diagram illustrating a state in which the reading mechanism unit is opened with respect to a recording mechanism unit main body in the printer according to the embodiment. 
         FIG. 45  is a diagram illustrating a paper transport path in the printer according to the embodiment. 
         FIG. 46  is a main portion plan diagram of the printer according to the embodiment. 
         FIG. 47A  is a diagram explaining the operation of a regulating member. 
         FIG. 47B  is a diagram explaining the operation of the regulating member. 
         FIG. 47C  is a diagram explaining the operation of the regulating member. 
         FIG. 48A  is a diagram explaining a biasing mechanism which uses a torsion spring. 
         FIG. 48B  is a diagram explaining the biasing mechanism which uses the torsion spring. 
         FIG. 48C  is a diagram explaining the biasing mechanism which uses the torsion spring. 
         FIG. 49  is an external perspective diagram of a regulating member. 
         FIG. 50  is a main portion enlarged perspective diagram of the regulating member which is attached to the recording mechanism unit main body. 
         FIG. 51  is a main portion enlarged perspective diagram of a periphery of a tilting shaft to which the regulating member is attached in the recording mechanism unit main body. 
         FIG. 52  is a main portion enlarged perspective diagram of the regulating member. 
         FIG. 53  is a diagram representing a state in which the manual cover to be closed is in contact with an induction portion of a regulating member. 
         FIG. 54A  is a diagram explaining an opening angle of the regulating member. 
         FIG. 54B  is a diagram explaining the opening angle of the regulating member. 
         FIG. 55  is a plan diagram of a surface which faces a document stand in a document stand cover. 
         FIG. 56  is a sectional diagram taken along LVI-LVI of  FIG. 55 . 
         FIG. 57  is a sectional diagram taken along LVII-LVII of  FIG. 55 . 
     
    
    
     DESCRIPTION OF EXEMPLARY EMBODIMENTS 
     Description will be given of the recording apparatus according to the embodiment of the invention with reference to the drawings. In the embodiment which is described hereinafter, description will be given of an ink jet printer (hereinafter simply referred to as a printer) as an example of the recording apparatus. The same configurations in each of the examples of the embodiment will be described only in the first example, the same reference symbols will be applied, and description of the configuration thereof will be omitted in the following examples. 
     First Embodiment 
     First, description will be given of an outline of the printer according to the first embodiment of the invention. 
       FIG. 1  is an external perspective diagram of a printer according to an embodiment,  FIG. 2  is an external perspective diagram of the printer according to the embodiment as viewed from the rear surface side,  FIG. 3  is a perspective diagram illustrating a state in which a paper output tray is extended to the front of the apparatus in the printer according to the embodiment,  FIG. 4  is a lateral sectional diagram illustrating a medium transport path in the printer according to the embodiment,  FIG. 5  is a perspective diagram illustrating a state in which a document cover is opened with respect to a reading mechanism unit in the printer,  FIG. 6  is a perspective diagram illustrating a state in which the medium supply port cover is opened with respect to the apparatus main body on the rear surface side of the apparatus main body,  FIG. 7  is a perspective diagram illustrating a state in which the medium supply port cover in  FIG. 6  is removed, and  FIG. 8  is a perspective diagram of the medium supply port cover. 
       FIG. 9  is a perspective diagram illustrating a sliding surface which is provided on the medium supply port cover,  FIG. 10  is a lateral sectional diagram illustrating the medium supply port cover in a state of being closed with respect to the apparatus main body,  FIG. 11  is a perspective diagram of a hinge member,  FIG. 12  is a perspective diagram of the hinge member,  FIG. 13  is a lateral sectional diagram illustrating a state in which the medium supply port cover is tilted with respect to the apparatus main body,  FIG. 14  is a lateral sectional diagram illustrating a state in which the medium supply port cover is tilted with respect to the apparatus main body to incline the medium supply port cover to the apparatus rear surface side,  FIG. 15  is a lateral sectional diagram illustrating a state of a spring member which is provided in the hinge member in a state in which the medium supply port cover is closed, and  FIG. 16  is a lateral sectional diagram illustrating a state of the spring member which is provided in the hinge member in a state in which the medium supply port cover is opened. 
     In an X-Y-Z coordinate system which is illustrated in the drawings, an X direction indicates a main scanning direction (a movement direction) of a carriage, that is a width direction of the recording apparatus, a Y direction indicates a medium transport direction, that is, a depth direction of the recording apparatus, and a Z direction indicates an apparatus height direction. In the drawings, a +X direction side is the apparatus left side, a −X direction side is the apparatus right side, a −Y direction is an apparatus front surface side, a +Y direction is an apparatus rear surface side, a +Z direction side is the apparatus top side, and a −Z direction side is the apparatus bottom side. 
     First Example 
     Outline of Printer 
     With reference to  FIGS. 1 and 2 , a printer  10  which serves as the recording apparatus is provided with an apparatus main body  12 , a housing  12   a  which configures at least a portion of the outside of the apparatus main body  12 , and a reading mechanism unit  14  which is provided on the top portion of the apparatus main body  12 . An operation unit  16  is provided on the apparatus front surface side of the apparatus main body  12  to be capable of tilting with respect to the apparatus main body  12 . The operation unit  16  is configured to be capable of switching between a posture of being closed with respect to the apparatus main body  12  (refer to  FIG. 1 ), and a posture of being tilted to the apparatus front surface side with respect to the apparatus main body  12  (refer to  FIG. 3 ). A displayer  18  such as a display panel is provided on the operation unit  16 . 
     A front surface cover  20  is disposed on the bottom of the operation unit  16  on the apparatus front surface side of the apparatus main body  12 . A paper output tray  22  is provided in the apparatus main body  12 . The paper output tray  22  is configured to be capable of switching between a state of being stored inside the apparatus main body  12  (refer to  FIG. 1 ), and a state of being extended to the apparatus front surface side of the apparatus main body  12  (refer to  FIG. 3 ). 
     A medium supply port cover  24  which serves as the “lid body” is attached to the top portion of the rear surface side of the apparatus main body  12  to be capable of tilting such that the rear surface side in the apparatus depth direction becomes the tilting fulcrum. The medium supply port cover  24  is configured to be capable of switching between a state of being closed with respect to the apparatus main body  12  which is illustrated in  FIG. 1  (a closed state), and a state of being opened with respect to the apparatus main body  12  which is illustrated in  FIG. 3  (an opened state). 
     When the medium supply port cover  24  is closed, the medium supply port cover  24  configures a portion of the top surface of the apparatus main body  12 , specifically, the top surface of the rear surface side in the apparatus depth direction. A rear surface side end portion  24   a  (refer to  FIG. 2 ) in the apparatus depth direction of the medium supply port cover  24  forms the same surface as a rear surface  12   b  of the apparatus main body  12  in a state in which the medium supply port cover  24  is closed (refer to  FIG. 4 ). In the medium supply port cover  24 , for example, an end portion of the apparatus depth direction front surface side is configured as a free end side. 
     As illustrated in  FIG. 3 , when the medium supply port cover  24  is opened, a medium supply port  26  into which the recording medium (the medium) is to be set is exposed on the rear surface side of the top portion of the apparatus main body  12 . It is possible to insert the recording medium into the medium supply port  26  in the direction of arrow A, and the medium which is inserted is guided down an inclined medium guide path  28  which is illustrated in  FIG. 4 , and is fed to the downstream side in the transport direction. 
     Regarding Medium Transport Path 
     Next, description will be given of a medium transport path  30  of the recording medium in the apparatus main body  12  with reference to  FIG. 4 . The thick solid line to which reference symbol R is applied in  FIG. 4  indicates a guide path of the medium which is transported from a cassette  32  to the paper output tray  22  along the medium transport path  30 . 
     The cassette  32  which stores the recording medium is provided in the bottom portion of the apparatus main body  12 . The cassette  32  is formed in a box shape, and the inner portion thereof is capable of storing the recording medium. A pickup roller  34 , an inversion roller  36 , follower rollers  38   a ,  38   b , and  38   c , a transport roller pair  40 , a recording unit  42 , and an output roller pair  44  are provided in this order along the medium transport path  30  inside the apparatus main body  12 . The pickup roller  34  is disposed above the cassette  32  to be capable of tilting, using the tilting shaft  46  as a fulcrum. The recording medium which is fed from the cassette  32  by the pickup roller  34  is nipped by the inversion roller  36  and the follower rollers  38   a  and  38   b , and is transported to the transport roller pair  40 . 
     The transport roller pair  40  transports the recording medium to the recording unit  42 . The recording unit  42  is provided with a carriage  48 , a recording head  50  which serves as the “recorder”, and a medium guide member  52 . The carriage  48  is configured to be capable of reciprocally moving in the apparatus width direction. The recording head  50  is provided on the bottom portion of the carriage  48 . The recording head  50  is configured to discharge an ink toward the bottom side in apparatus height direction. 
     The medium guide member  52  is provided under the recording head  50  in a region which faces the recording head  50 . The medium guide member  52  is disposed to face the recording head  50 , leaving an interval between the medium guide member  52  and the recording head  50 . The medium guide member  52  supports the bottom surface (a surface of the opposite side from the recording surface) of the recording medium which is transported by the transport roller pair  40  to the region which faces the recording head  50 . The recording head  50  discharges the ink onto the recording medium which is supported by the medium guide member  52 , and executes recording on the recording surface of the recording medium. 
     The recording medium on which the recording is executed is nipped by the output roller pair  44  which is provided on the downstream side in the transport direction of the recording unit  42 , and is output toward the paper output tray  22  (refer to  FIG. 3 ) which protrudes to the apparatus front surface side. 
     The medium supply port cover  24  is opened, and the recording medium which is inserted into the medium supply port  26  from above the printer  10  is guided to the medium guide path  28 , is transported to the recording unit  42 , and recording is performed in the recording unit  42 . After the recording is performed, the recording medium is output to the paper output tray  22 . 
     In a case in which after recording is executed on a first surface (the recording surface) of the recording medium in the recording unit  42 , recording is performed on a second surface (the bottom surface) of the opposite side from the first surface, the transport roller pair  40  is reversed to transport the recording medium to the upstream side in the transport direction. The recording medium which is transported to the upstream side in the transport direction is nipped by the inversion roller  36  and the follower roller  38   c . The first surface and the second surface of the recording medium are inverted by the inversion roller  36 , and after the recording medium is transported again to the recording unit  42  and the recording of the second surface is executed in the recording unit  42 , the recording medium is output toward the paper output tray  22 . 
     Regarding Reading Mechanism Unit 
     Next, description will be given of the reading mechanism unit  14  with reference to  FIGS. 4 and 5 . The reading mechanism unit  14  is provided on the top portion of the apparatus main body  12 . The reading mechanism unit  14  is configured as a scanner. The reading mechanism unit  14  is provided with a main body portion  54  (refer to  FIG. 4 ), a document stand  56  (refer to  FIG. 4 ) which is provided on the top portion of the main body portion  54 , and a document cover  58 . The document stand  56  is formed of a transparent glass plate, for example, and is configured such that it is possible to place a document on the top surface of the document stand  56 . 
     As illustrated in  FIG. 5 , the document cover  58  is formed as a plate-shaped member. The dimension of the document cover  58  in the apparatus width direction is set to a dimension corresponding to the horizontal width of the apparatus main body  12 , for example. The document cover  58  is joined to a hinge member  60  to be capable of tilting with respect to the hinge member  60 . The hinge member  60  is inserted into the main body portion  54  of the reading mechanism unit  14 . 
     The hinge member  60  is connected to the main body portion  54  by snap fitting, for example. In other words, the document cover  58  is connected to be capable of tilting due to the hinge member  60  with respect to the main body portion  54 . When an external force greater than or equal to a predetermined amount is applied to the document cover  58 , the engagement state between the hinge member  60  and the main body portion  54 , that is, the snap fitting is released, and damage to the document cover  58  is suppressed or avoided. Description of the specifics of the attachment mechanism of the hinge member  60  with respect to the main body portion  54  will be omitted. 
     The document cover  58  opens and closes the document stand  56  by tilting to the rear surface side and the front surface side in the apparatus depth direction. In other words, the document cover  58  has the same opening direction as the medium supply port cover  24 . The document cover  58  covers the document stand  56  in the closed state (refer to  FIGS. 1 to 3 ), and exposes the document stand  56  in the opened state (refer to  FIG. 5 ). The document cover  58  configures the top surface of the front surface side of in the apparatus depth direction in the printer  10  in a state in which the document cover  58  is closed, for example. As illustrated in  FIG. 1 , in the present example, a top surface  24   b  of the medium supply port cover  24  in the closed state and a top surface  58   a  of the document cover  58  in the closed state are configured to form the same surface. Accordingly, it is possible to realize a favorable external appearance in the printer  10 . 
     By opening the document cover  58  to expose the document stand  56 , setting the document on the top surface of the document stand  56 , and closing the document cover  58 , it becomes possible to read the document on the document stand  56 . A reader (not illustrated) which is capable of reading the document which is set on the document stand  56  is provided under the document stand  56 , that is, inside the main body portion  54 . 
     In the present example, a tilting shaft (not illustrated) is provided in the reading mechanism unit  14  near to the rear surface side of the main body portion  54  in the apparatus depth direction. The reading mechanism unit  14  is joined to the apparatus main body  12  to be capable of tilting via the tilting shaft. The reading mechanism unit  14  is configured to be capable of switching between a posture of being closed with respect to the apparatus main body  12  (refer to  FIGS. 1 and 2 ), and a posture of being tilted and opened with respect to the apparatus main body  12  (not illustrated). 
     Regarding Medium Supply Port Cover 
     Next, description will be given of the medium supply port cover  24  with reference to  FIGS. 6 to 16 . As illustrated in  FIG. 6 , the medium supply port cover  24  is attached to the rear surface side end portion of the apparatus main body  12  via a hinge member  62  to be capable of tilting with respect to the apparatus main body  12 . Here, with reference to  FIG. 7 , a plurality of sliding surfaces  64  are formed on the top portion of the end portion of the rear surface side of the apparatus main body  12  in the apparatus depth direction, leaving an interval in the apparatus width direction. 
     With reference to  FIGS. 8 and 9 , the medium supply port cover  24  is configured as a plate-shaped member which extends in the apparatus width direction. The dimension in the apparatus width direction of the medium supply port cover  24  is set to a dimension corresponding to the horizontal width of the apparatus main body  12 , for example. In other words, in a state in which the medium supply port cover  24  is closed, a level difference or the like is unlikely to arise between the medium supply port cover  24  and the apparatus main body  12  in the apparatus width direction, so that the appearance of the apparatus is improved. 
     As illustrated in  FIGS. 8 and 9 , a plurality of sliding target surfaces  66  are formed at the rear surface side end portion  24   a  of the medium supply port cover  24  leaving an interval in the apparatus width direction. The sliding target surface  66  extends from the top side toward the bottom side in the apparatus height direction of the rear surface side end portion  24   a , further passes a bottom portion  24   c  of the rear surface side end portion  24   a , and extends to the top side in the apparatus height direction on the inside of the rear surface side end portion  24   a  (also refer to  FIG. 15 ). 
     As illustrated in  FIG. 9 , a plurality of bearings  68  are provided on the rear surface of the medium supply port cover  24  at an interval in the apparatus width direction. The bearings  68  are provided in positions in the apparatus width direction corresponding to positions of the hinge member  62  which is provided on the apparatus main body  12 . 
     Regarding Hinge Member 
     Next, with reference to  FIGS. 10 to 12 , a hinge member attachment portion  70  is provided on the rear surface side end portion of the apparatus main body  12 . A biasing unit attachment portion  12   c  and a hook engagement portion  12   d  which will be described later are provided on the hinge member attachment portion  70 . The hinge member  62  is attached to the hinge member attachment portion  70  to be capable of sliding in a direction including a vertical direction component, that is, in the apparatus height direction. Description of the hinge member  62  will be performed based on the posture in which the hinge member  62  is attached to the apparatus main body  12 . 
     A biasing unit  72  is provided between the hinge member  62  and the apparatus main body  12 . The biasing unit  72  is configured as a compressed coil spring, for example. As illustrated in  FIG. 11 , a biasing unit attachment portion  62   a  is attached to the front surface side of the hinge member  62  in the apparatus depth direction. The biasing unit attachment portion  62   a  is formed in a pin shape, for example, and is inserted into one end of the biasing unit  72 . 
     The other end of the biasing unit  72  is engaged with the biasing unit attachment portion  12   c  which is provided on the hinge member attachment portion  70 . Here, the biasing force of the biasing unit  72  biases the hinge member  62  in a direction including a vertical direction component inside the hinge member attachment portion  70 , for example, the biasing unit  72  biases the hinge member  62  to the bottom side in the apparatus height direction. 
     With reference to  FIG. 12 , a pair of tilting shaft portions  62   b , a hook  62   c , and a spring member  74  are provided on the rear surface side of the hinge member  62  in the apparatus depth direction. The tilting shaft portions  62   b  protrude from an end portion of the top side of the hinge member  62  in the apparatus height direction to the rear surface side in the apparatus depth direction. Tilting shafts  62   d  protrude in directions facing each other on the tips of the pair of tilting shaft portions  62   b.    
     The tilting shafts  62   d  are inserted into the bearings  68  of the medium supply port cover  24 . The pair of tilting shaft portions  62   b  which face each other have elasticity. When an external force greater than or equal to a predetermined amount acts on the medium supply port cover  24  in a state in which the tilting shafts  62   d  are inserted into the bearings  68 , the pair of tilting shaft portions  62   b  warp in directions so as to separate from each other, the tilting shafts  62   d  escape from the bearings  68 , and the linking between the medium supply port cover  24  and the hinge member  62  is released. Accordingly, it is possible to suppress or avoid damage to the medium supply port cover  24  or the hinge member  62 . 
     The hook  62   c  is formed on the bottom end portion of the hinge member  62 . The hook  62   c  defines the range of the slide movement of the hinge member  62  in the apparatus height direction by coming into contact with or separating from the hook engagement portion  12   d  when the hinge member  62  is slide moved in the apparatus height direction inside the hinge member attachment portion  70 . 
     The spring member  74  is provided on the top end portion of the hinge member  62 , and the spring member  74  is disposed between the pair of tilting shaft portions  62   b  in the apparatus width direction. The spring member  74 , for example, is configured as a plate spring, more specifically, a so-called double stability spring. The spring member  74  is in contact with the bearings  68  of the medium supply port cover  24 . The spring member  74  biases in a direction in which the medium supply port cover  24  closes in a range in which the medium supply port cover  24  opens to a predetermined opening angle from a closed state, and biases in a direction in which the medium supply port cover  24  opens in a range in which the medium supply port cover  24  is further opened from the predetermined opening angle. 
     Hereinafter, description will be given of the opening and closing operations of the medium supply port cover  24  with reference to  FIGS. 10, and 13 to 16 . With reference to  FIG. 10 , in a state in which the medium supply port cover  24  is closed, due to the biasing force of the biasing unit  72  which biases the hinge member  62  to the bottom side in the apparatus height direction, the medium supply port cover  24  is also biased to the apparatus main body  12  side. Accordingly, since the medium supply port cover  24  is pulled to the apparatus main body  12  side, a gap  76  between the rear surface side end portion  24   a  of the medium supply port cover  24  and the housing  12   a  of the apparatus main body  12  in the apparatus height direction is reduced. In other words, in the state in which the medium supply port cover  24  is closed, the gap  76  assumes as filled state (also refer to  FIG. 2 ). 
     Here, as illustrated in  FIG. 10 , in the state in which the medium supply port cover  24  is closed, the hinge member  62  is configured to be concealed on the inside of the medium supply port cover  24  and the housing  12   a . Therefore, it is possible to improve the external appearance of the printer  10  in the state in which the medium supply port cover  24  is closed. 
     In the state in which the medium supply port cover  24  is closed, the hinge member  62  is biased to the bottom side in the apparatus height direction by the biasing unit  72 , and the hook  62   c  is in a state of being separated from the hook engagement portion  12   d  which is provided on the apparatus main body  12 . 
     As illustrated in  FIG. 15 , a closing position regulating surface  68   a , a cam surface  68   b , and an opening position regulating surface  68   c  are formed on the outer circumferential surface of the bearing  68  of the medium supply port cover  24 . In the state in which the medium supply port cover  24  is closed, the spring member  74  comes into contact with the closing position regulating surface  68   a  at a position closer to the bottom side than the tilting shaft  62   d  in the apparatus height direction, and biases the closing position regulating surface  68   a . Therefore, the spring member  74  biases the medium supply port cover  24  in a direction in which the medium supply port cover  24  closes. 
     Next, as illustrated in  FIG. 13 , when the medium supply port cover  24  is opened from the closed state (refer to  FIG. 10 ), the sliding target surface  66  which is provided on the rear surface side end portion  24   a  comes into contact with the sliding surfaces  64  of the apparatus main body  12 . The medium supply port cover  24  opens while the sliding target surface  66  slides on the sliding surfaces  64 . At this time, the spring member  74  slides from the closing position regulating surface  68   a  along the cam surface  68   b , and changes the contact position with the bearings  68 . Since the spring member  74  biases in the radial direction of the bearing  68 , it is possible to suppress wobbling of the medium supply port cover  24  with respect to the hinge member  62 . 
     When the sliding target surface  66  comes into contact with the sliding surfaces  64 , the contacting portion becomes a fulcrum, and the hinge member  62  is caused to slide to the top side in the apparatus height direction against the biasing force of the biasing unit  72 . At this time, the hook  62   c  moves to the top side in the apparatus height direction and approaches the hook engagement portion  12   d.    
     As illustrated in  FIGS. 14 and 16 , when the medium supply port cover  24  is further opened, the spring member  74  comes into contact with the opening position regulating surface  68   c  in the cam surface  68   b . In this state, the spring member  74  biases the opening position regulating surface  68   c . The biasing force of the spring member  74  acts in the direction in which the medium supply port cover  24  opens. When the contact position between the spring member  74  and the cam surface  68   b  is switched from the closing position regulating surface  68   a  to the opening position regulating surface  68   c , or from the opening position regulating surface  68   c  to the closing position regulating surface  68   a , since the user can feel a clicking sensation, it is possible to improve the ease of use in the opening and closing operations of the medium supply port cover  24 . 
     Since the hook  62   c  in this state engages with the hook engagement portion  12   d , the sliding movement to the top side in the apparatus height direction of the hinge member  62  is regulated. 
     Here, the hinge member  62  is biased to the bottom side in the device height direction by the biasing unit  72 ; however, the sliding target surface  66  is in contact with the sliding surfaces  64 , and the displacement of the hinge member  62  to the bottom side in the apparatus height direction is regulated. Therefore, the medium supply port cover  24  maintains a posture of being inclined to the rear surface side in the apparatus depth direction with respect to the apparatus main body  12 . In this state, the medium supply port cover  24  may be configured to function as a medium support member which supports the medium which is inserted into the medium supply port  26  in an inclined posture. 
     In order to switch from the state in which the medium supply port cover  24  is opened to the state in which the medium supply port cover  24  is closed, it is possible to close the medium supply port cover  24  by tilting the medium supply port cover  24  from the rear surface side toward the front surface side in the apparatus depth direction using a force greater than or equal to the biasing force of the spring member  74 . At this time, when the opening angle of the medium supply port cover  24  is less than or equal to a predetermined angle, the direction in which the biasing force of the spring member  74  acts is switched from the direction in which the medium supply port cover  24  opens to the direction in which the medium supply port cover  24  closes, and so even if an external force is not applied, the medium supply port cover  24  naturally switches to the closed state. 
     With reference to  FIG. 6  again, the medium supply port cover  24  and the apparatus main body  12  are linked to be capable of tilting using the hinge member  62  and the bearings  68  which are disposed to leave an interval in the apparatus width direction. The hinge members  62  are biased to the bottom side in the apparatus height direction by the biasing unit  72 . 
     Here, the biasing force of the biasing unit  72  is set to a magnitude at which, for example, when lifting up a side portion of the medium supply port cover  24  in the apparatus width direction to open the medium supply port cover  24 , the medium supply port cover  24  tilts without the hinge member  62  which is in a distant position from the side portion lifting up, using the hinge member  62  which is in a position far from the side portion as a fulcrum. Accordingly, even if the user lifts up the side portion of the medium supply port cover  24 , it is possible to tilt the medium supply port cover  24  using the tilting shaft  62   d  as a fulcrum without the hinge member  62  being lifted up, and it is possible to improve the ease of use. 
     Since a configuration is adopted in which the hinge member  62  is caused to move by sliding in the apparatus height direction, it is possible to prevent the medium supply port cover  24  from interfering with the apparatus main body  12  during the opening and closing operations of the medium supply port cover  24 . As a result, it is no longer necessary to provide an escape shape or the like for preventing the interference in the medium supply port cover  24  or the apparatus main body  12 , and it is possible to improve the design characteristics of the printer  10 . 
     Modification Example of First Example 
     Although the medium supply port cover  24  is configured as a single member, it is possible to configure the medium supply port cover  24  using a plurality of components which are capable of expanding and contracting along the direction in which the medium is inserted into the medium supply port  26  in order to increase the support region of the medium. 
     To summarize the description given above, the printer  10  is provided with the housing  12   a  which configures at least a portion of the outside of the apparatus main body  12  which is provided with the recording head  50  which performs the recording on the medium, the medium supply port cover  24  which opens and closes at least a portion of the top portion of the apparatus main body  12  and is capable of tilting, and the tilting shaft  62   d  of the medium supply port cover  24 , in which the tilting shaft  62   d  is capable of being displaced in the apparatus height direction which is a direction intersecting the axial line direction of the tilting shaft  62   d , and in which the medium supply port cover  24  is capable of tilting from the closed space which fills the gap  76  between the rear surface side end portion  24   a  and the housing  12   a  of the opposite side with respect to the free end side to the opened state due to the displacement of the tilting shaft  62   d . According to this configuration, it becomes possible to suitably open and close the medium supply port cover  24  while reducing the size of the gap between the rear surface side end portion  24   a  and the housing  12   a  of the tilting shaft side end portion of the medium supply port cover  24 . 
     The tilting shaft  62   d  is configured by the hinge member  62  which is provided to be capable of sliding in the apparatus height direction which is a direction including a vertical direction component with respect to the apparatus main body  12 . According to this configuration, it is possible to realize a configuration which displaces the tilting shaft  62   d  in the direction intersecting the axial line direction with a simple structure and low cost. 
     The hinge member  62  is biased in the downward direction in the apparatus height direction which is a direction including a vertical downward direction component by the biasing unit  72 . According to this configuration, it is possible to maintain a state in which the gap  76  between the medium supply port cover  24  and the housing  12   a  is filled, that is, a state which is preferable from the perspective of the external appearance. 
     A plurality of pairs of the hinge member  62  and the biasing unit  72  are provided along the apparatus width direction which is the tilting axial line direction of the medium supply port cover  24 , and the biasing force of the biasing unit  72  is set to a magnitude at which when lifting up a side portion of the medium supply port cover  24  in the apparatus width direction which is the tilting axial line direction to open the medium supply port cover  24 , the medium supply port cover  24  tilts without the hinge member  62  which is in a position close to the side portion lifting up, using the hinge member  62  which is in a distant position from the side portion as a fulcrum. According to this configuration, when the user lifts up the side portion of the medium supply port cover  24  in the apparatus width direction which is the tilting axial line direction to open the medium supply port cover  24 , it is possible to suitably open the medium supply port cover  24 . 
     The hinge member  62  is provided on the inside of the housing  12   a , and in a state in which the medium supply port cover  24  is closed, the hinge member  62  is concealed on the inside of the housing  12   a  and the medium supply port cover  24 . According to this configuration, in the state in which the medium supply port cover  24  is closed, it is possible to improve the external appearance of the printer  10 . 
     The hinge member  62  is provided with the spring member  74  which biases the medium supply port cover  24  in a closing direction in a range in which the medium supply port cover  24  opens to a predetermined opening angle from a closed state, and biases the medium supply port cover  24  in an opening direction in a range in which the medium supply port cover  24  is further opened from the predetermined opening angle. According to this configuration, the ease of use is improved during the opening and closing of the medium supply port cover  24 . 
     The reading mechanism unit  14  which reads the document, and the medium supply port  26  in which it is possible to set the medium are included on the top portion of the apparatus main body  12 , the medium supply port cover  24  opens and closes the medium supply port  26 , the reading mechanism unit  14  is provided with the document cover  58  which opens and closes the document stand  56  on which the document is placed and has the same opening direction as the medium supply port cover  24 , the medium supply port cover  24  and the document cover  58  have widths corresponding to the horizontal width of the apparatus main body  12  and the top surface  24   b  of the medium supply port cover  24  and the top surface  58   a  of the document cover  58  form the same surface, and the rear surface side end portion  24   a  which is the end portion of the opposite side from the free end side of the medium supply port cover  24  and the rear surface  12   b  of the apparatus main body  12  form the same surface. According to this configuration, it is possible to obtain a recording apparatus with an excellent external appearance. 
     In the present embodiment, the medium supply port cover  24  is applied to the ink jet printer which serves as an example of the recording apparatus; however, it is also possible to apply the medium supply port cover  24  to other liquid ejecting apparatuses in general. 
     Second Embodiment 
     Description will be given of an outline of the printer according to the second embodiment of the invention. 
       FIG. 17  is an external perspective diagram of a printer according to an embodiment,  FIG. 18  is a perspective diagram of a state in which a paper output tray in the printer according to the embodiment is extended,  FIG. 19  is a lateral sectional diagram illustrating a medium transport path in the printer according to the embodiment,  FIG. 20  is a perspective diagram illustrating a state in which a document cover in the printer is opened,  FIG. 21  is a perspective diagram of the document cover, and  FIG. 22  is a perspective diagram of a hinge member which connects a reading mechanism unit and the document cover. 
       FIG. 23  is a perspective diagram of the hinge member,  FIG. 24  is a perspective diagram illustrating a state in which a medium supply port cover in the printer is opened,  FIG. 25  is a lateral sectional diagram illustrating a state in which the medium supply port in the printer is closed,  FIG. 26  is a lateral sectional diagram illustrating a state in which the medium supply port in the printer is opened,  FIG. 27  is an external perspective diagram illustrating a state in which the reading mechanism unit in the printer is opened, and  FIG. 28  is a side surface diagram illustrating a relationship between the document cover and the medium supply port cover in a state in which the reading mechanism unit is closed. 
       FIG. 29  is a side surface diagram illustrating a relationship between the document cover and the medium supply port cover in a state in which the reading mechanism unit is tilted,  FIG. 30  is a side surface diagram illustrating a relationship between the document cover and the medium supply port cover in a state in which the reading mechanism unit is tilted,  FIG. 31  is a lateral sectional diagram illustrating a state before a rocking member is rocked,  FIG. 32  is a perspective diagram of a top portion of the apparatus main body in a state before the rocking member is rocked,  FIG. 33  is a lateral sectional diagram illustrating a state after the rocking member is rocked, and  FIG. 34  is a perspective diagram of the top portion of the apparatus main body in a state after the rocking member is rocked. 
       FIG. 35  is a perspective diagram illustrating a state in which the rocking member lifts up the medium supply port cover in a second state,  FIG. 36  is a lateral sectional diagram illustrating a state in which the reading mechanism unit is tilted in a state in which the document cover is opened,  FIG. 37  is a lateral sectional diagram illustrating a state in which the reading mechanism unit is tilted from the state of  FIG. 36  further to the apparatus rear surface side,  FIG. 38  is a side surface diagram illustrating a relationship between the document cover and the medium supply port cover according to a second example,  FIG. 39  is a schematic diagram of the configuration of the medium supply port cover in the second example, and  FIG. 40  is a side surface diagram illustrating a relationship between the document cover and the medium supply port cover when the reading mechanism unit is tilted in a state in which the document cover in the second example is opened. 
     The X-Y-Z coordinate system which is illustrated in the drawings is the same as in the first embodiment. 
     First Example 
     Outline of Printer 
     With reference to  FIG. 17 , a printer  110  is provided with an apparatus main body  112 , and a reading mechanism unit  114  which is provided on the top portion of the apparatus main body  112 . The operation unit  16  is provided on the apparatus front surface side of the apparatus main body  112  to be capable of tilting with respect to the apparatus main body  112 . The operation unit  16  is configured to be capable of switching between a posture of being closed with respect to the apparatus main body  112  (refer to  FIG. 17 ), and a posture of being tilted to the apparatus front surface side with respect to the apparatus main body  112  (refer to  FIG. 18 ). The displayer  18  such as a display panel is provided on the operation unit  16 . 
     The front surface cover  20  is disposed on the bottom of the operation unit  16  on the apparatus front surface side of the apparatus main body  112 . The paper output tray  22  is provided in the apparatus main body  112 . The paper output tray  22  is configured to be capable of switching between a state of being stored inside the apparatus main body  112  (refer to  FIG. 17 ), and a state of being extended to the apparatus front surface side of the apparatus main body  112  (refer to  FIG. 18 ). 
     A medium supply port cover  124  is attached to the top portion of the rear surface side of the apparatus main body  112  to be capable of tilting. The medium supply port cover  124  is configured to be capable of switching between a state of being closed with respect to the apparatus main body  112  which is illustrated in  FIG. 17 , and a state of being opened with respect to the apparatus main body  112  which is illustrated in  FIG. 18 . When the medium supply port cover  124  is closed, the medium supply port cover  124  configures a portion of the top surface of the apparatus main body  112 , specifically, the top surface of the rear surface side in the apparatus depth direction. 
     When the medium supply port cover  124  is opened, the medium supply port  26  into which the recording medium (the medium) is to be set is exposed on the rear surface side of the top portion of the apparatus main body  112 . It is possible to insert the recording medium into the medium supply port  26  in the direction of arrow A, and the medium which is inserted is guided down the inclined medium guide path  28  which is illustrated in  FIG. 19 , and is fed to the downstream side in the transport direction. 
     Regarding Medium Transport Path 
     The medium transport path  30  and the guide path of the medium to which the reference symbol R is attached of the present embodiment which are illustrated in  FIG. 19  are the same as in the first embodiment. The configuration of the bottom portion and the inner portion of the apparatus main body  112  are the same as those of the apparatus main body  12  of the first embodiment. 
     Even in the present embodiment, the medium supply port cover  124  is opened, and the recording medium which is inserted into the medium supply port  26  from above the printer  110  is guided to the medium guide path  28 , is transported to the recording unit  42 , and recording is performed in the recording unit  42 . After the recording is performed, the recording medium is output to the paper output tray  22 . 
     Regarding Reading Mechanism Unit 
     Next, with reference to  FIGS. 19 to 23 , description will be given of the reading mechanism unit  114 . As illustrated in  FIGS. 19 and 20 , the reading mechanism unit  114  is provided on the top portion of the apparatus main body  112 . The reading mechanism unit  114  is configured as a scanner. The reading mechanism unit  114  is provided with the main body portion  54  (also refer to  FIG. 27 ), the document stand  56  (refer to  FIG. 20 ) which is provided on the top portion of the main body portion  54 , and a document cover  158 . The document stand  56  is formed of a transparent glass plate, for example, and is configured such that it is possible to place a document on the top surface of the document stand  56 . 
     As illustrated in  FIGS. 21 and 22 , the document cover  158  is formed as a plate-shaped member. Bearings  58   d  are formed on the end portion of the rear surface side of the document cover  158  in the apparatus depth direction. A hinge  160  is illustrated in  FIG. 23 . The hinge  160  is provided with a pair of tilting shafts  160   a  which face each other. The tilting shafts  160   a  are received by the bearings  58   d  of the document cover  158 . In other words, the document cover  158  is capable of tilting with respect to the hinge  160  using the tilting shaft  160   a  as a fulcrum. 
     As illustrated in  FIG. 22 , the hinge  160  is inserted downward from above the main body portion  54  of the reading mechanism unit  114 . The hinge  160  is connected to the main body portion  54  by snap fitting, for example. In other words, the document cover  158  is connected to be capable of tilting due to the hinge  160  with respect to the main body portion  54 . 
     When an external force greater than or equal to a predetermined amount is applied to the document cover  158 , for example, when an attempt is made to open the document cover  158  in a state in which the medium supply port cover  124  is retained so as not to tilt, the engagement state between the hinge  160  and the main body portion  54 , that is, the snap fitting is released, the hinge  160  escapes upward, and damage to the document cover  158  is suppressed or avoided. Description of the specifics of the attachment mechanism of the hinge  160  with respect to the main body portion  54  will be omitted. 
     The document cover  158  opens and closes the document stand  56  by tilting to the rear surface side and the front surface side in the apparatus depth direction. In other words, the document cover  158  has the same opening direction as the medium supply port cover  124 . The document cover  158  covers the document stand  56  in the closed state (refer to  FIGS. 17 and 18 ), and exposes the document stand  56  in the opened state (refer to  FIG. 20 ). The document cover  158  configures the top surface of the front surface side of in the apparatus depth direction in the printer  110  in a state in which the document cover  158  is closed, for example. As illustrated in  FIG. 17 , in the present example, a top surface  124   e  of the medium supply port cover  124  in the closed state and a top surface  58   a  of the document cover  158  in the closed state are configured to form the same surface. Accordingly, it is possible to realize a favorable external appearance in the printer  110 . 
     By opening the document cover  158  to expose the document stand  56 , setting the document on the top surface of the document stand  56 , and closing the document cover  158 , it becomes possible to read the document on the document stand  56 . A reader (not illustrated) which is capable of reading the document which is set on the document stand  56  is provided under the document stand  56 , that is, inside the main body portion  54 . 
     In the present example, a tilting shaft (not illustrated) is provided in the reading mechanism unit  114  near to the rear surface side of the main body portion  54  in the apparatus depth direction. The reading mechanism unit  114  is joined to the apparatus main body  112  to be capable of tilting via the tilting shaft. The reading mechanism unit  114  is configured to be capable of switching between a posture of being closed with respect to the apparatus main body  112  (refer to  FIGS. 17 and 18 ), and a posture of being tilted and opened with respect to the apparatus main body  112  (refer to  FIG. 27 ). 
     Regarding Medium Supply Port Cover 
     Next, description will be given of the medium supply port cover  124  with reference to  FIGS. 24 to 26 . As illustrated in  FIG. 24 , the medium supply port cover  124  is attached to the top portion of the rear surface side end portion of the apparatus main body  112  to be capable of tilting with respect to the apparatus main body  112 . More specifically, the medium supply port cover  124  and the apparatus main body  112  are linked via a hinge  162 . For example, as illustrated in  FIGS. 25 and 26 , a bearing  124   a  is provided on the medium supply port cover  124 , and a tilting shaft  162   a  is provided on the hinge  162 . The tilting shaft  162   a  is engaged with the bearing  124   a.    
     With reference to  FIGS. 25 and 26 , the hinge  162  is attached to a hinge attachment portion  112   a  which is provided on the rear surface side end portion of the apparatus main body  112 . The hinge  162  is configured to be capable of moving up and down in the apparatus height direction with respect to the hinge attachment portion  112   a . A biasing unit  164  is provided between the hinge  162  and the apparatus main body  112 . The biasing unit  164  is configured as a compressed coil spring, for example. One end of the biasing unit  164  engages with the hinge  162 , and the other end engages with a biasing unit attachment portion  112   b  which is provided on the apparatus main body  112 . The biasing unit  164  biases the hinge  162  toward the bottom side in the apparatus height direction. 
     Here, as illustrated in  FIG. 25 , in a state in which the medium supply port cover  124  is closed, the hinge  162  assumes a state of being pulled into the hinge attachment portion  112   a  which is inside the apparatus main body  112 . When the medium supply port cover  124  is opened as illustrated in  FIG. 26 , the end portion  124   b  of the apparatus depth direction side of the medium supply port cover  124  comes into contact with a top portion  112   c  of the side end portion of the apparatus main body  112  in the apparatus depth direction. When the medium supply port cover  124  is further opened to the rear surface side in the apparatus depth direction, the hinge  162  is lifted up in the apparatus height direction using the contact point between an end portion  124   b  and the top portion  112   c  as a fulcrum. 
     In this state, the hinge  162  is biased to the bottom side in the apparatus height direction by the biasing force of the biasing unit  164 . Accordingly, the end portion  124   b  of the medium supply port cover  124  presses the top portion  112   c  of the apparatus main body  112 . As a result, the medium supply port cover  124  maintains a state of being opened with respect to the apparatus main body  112 . It is also possible to displace the medium supply port cover  124  to the top side in the apparatus height direction against the biasing force of the biasing unit  164  while maintaining a posture of being closed with respect to the apparatus main body  112 . 
     Regarding Relationship Between Medium Supply Port Cover and Document Stand Cover 
     Next, with reference to  FIGS. 27 to 30 , description will be given of the relationship between the medium supply port cover  124  and the document cover  158  when the reading mechanism unit  114  is opened in a state in which the medium supply port cover  124  and the document cover  158  are closed. As illustrated in  FIG. 27 , the reading mechanism unit  114  is configured to be capable of tilting with respect to the apparatus main body  112 . 
     Here,  FIG. 28  illustrates a state in which the reading mechanism unit  114  is closed. A first inclined surface  124   c  is formed on the end portion of the front surface side of the medium supply port cover  124  in the apparatus depth direction. The first inclined surface  124   c  is configured to head from the front surface side toward the rear surface side in the apparatus depth direction, and to be inclined from the top side toward the bottom side in the apparatus height direction. 
     A second inclined surface  58   b  is formed on the rear surface side end portion of the document cover  158  in the apparatus depth direction. The second inclined surface  58   b  is configured to head from the front surface side toward the rear surface side in the apparatus depth direction, and to be inclined from the top side toward the bottom side in the apparatus height direction. The first inclined surface  124   c  and the second inclined surface  58   b  face each other. For example, the first inclined surface  124   c  and the second inclined surface  58   b  are formed in parallel. As illustrated in  FIG. 28 , in a state in which the reading mechanism unit  114  is closed, the first inclined surface  124   c  and the second inclined surface  58   b  are separated leaving a minute gap therebetween. 
     As is clear from  FIG. 28 , when viewing the document cover  158  and the medium supply port cover  124  in plan view (when viewing the printer  110  from the top side), at least a portion of the second inclined surface  58   b  appears to overlap the first inclined surface  124   c  in the apparatus height direction. Therefore, when viewing the printer  110  from above, since the inside of the medium supply port cover  124  and the document cover  158 , that is, the top portion of the apparatus main body  112  is not exposed, it is possible to realize a favorable external appearance of the printer  110 . 
     As illustrated in  FIG. 29 , when the reading mechanism unit  114  is opened in a state in which the medium supply port cover  124  and the document cover  158  are closed, the first inclined surface  124   c  and the second inclined surface  58   b  come into contact with each other. The second inclined surface  58   b  pushes up the first inclined surface  124   c  to the top side in the apparatus height direction in accordance with the tilting of the reading mechanism unit  114 . 
     Here, the medium supply port cover  124  is configured to be capable of being displaced in the apparatus height direction against the biasing force of the biasing unit  164 . As illustrated in  FIG. 30 , when the reading mechanism unit  114  is further tilted to the rear surface side in the apparatus depth direction, the second inclined surface  58   b  pushes up the first inclined surface  124   c  in a direction in which the medium supply port cover  124  opens. When the reading mechanism unit  114  opens by greater than or equal to a predetermined angle with respect to the apparatus main body  112 , the first inclined surface  124   c  of the medium supply port cover  124  rides on the top surface  58   a  of the document cover  158 . 
     In other words, when the reading mechanism unit  114  is opened in a state in which the medium supply port cover  124  and the document cover  158  are closed, since the medium supply port cover  124  is configured to escape with respect the document cover  158 , it is possible to reduce the concern of damage to the cover of at least one of the document cover  158  and the medium supply port cover  124  due to interference. 
     Regarding Rocking Member 
     Next, description will be given of a rocking member  166  with reference to  FIGS. 31 to 37 . As illustrated in  FIG. 31 , the rocking member  166  is provided on the rear surface side end portion of the apparatus main body  112 . The rocking member  166  is positioned under the medium supply port cover  124  and the document cover  158  on the rear surface side end portion of the apparatus main body  112 . The rocking member  166  is provided to be capable of rocking inside the apparatus main body  112  using a rocking shaft  66   a  as a rocking center. The rocking member  166  is provided with an engaged portion  66   b  which is provided on the front surface side in the apparatus depth direction with respect to the rocking shaft  66   a , and an engagement portion  66   c  which is provided on the rear surface side in the apparatus depth direction with respect to the rocking shaft  66   a.    
     As illustrated in  FIG. 32 , a slit  168  is provided in the top portion of the rear surface side end portion of the apparatus main body  112  in the apparatus depth direction. The slit  168  is formed on the right side end portion in the apparatus width direction on the rear surface side end portion in the apparatus depth direction, for example. The slit  168  is set to a size at which the engagement portion  66   c  of the rocking member  166  is capable of protruding. In  FIG. 32 , depiction of the medium supply port cover  124  is omitted. 
     As illustrated in  FIGS. 31 and 32 , in a state in which the document cover  158  is closed, an engagement portion  58   c  which is provided on the rear surface side end portion of the document cover  158  in the apparatus depth direction that is the base end side and the engaged portion  66   b  of the rocking member  166  are in a state of being separated from the document cover  158 . In this state, since the rocking member  166  is in a non-rocked state, the engagement portion  66   c  does not protrude from the slit  168 . Therefore, since the engagement portion  66   c  is not in contact with the medium supply port cover  124 , the medium supply port cover  124  is in a state of being closed with respect to the apparatus main body  112 . 
     With reference to  FIG. 33 , when the document cover  158  is opened, the engagement portion  58   c  of the document cover  158  tilts in a clockwise direction in  FIG. 33  using the tilting shafts  160   a  of the hinge  160  (not illustrated) as a tilting center. The engagement portion  58   c  comes into contact with the engaged portion  66   b  of the rocking member  166  and presses the engaged portion  66   b . As a result, the rocking member  166  rocks in a counterclockwise direction in  FIG. 33  using the rocking shaft  66   a  as the rocking center. As a result, the engagement portion  66   c  of the rocking member  166  protrudes from the slit  168  to the top side in the apparatus height direction (refer to  FIG. 34 ). 
     When the engagement portion  66   c  protrudes from the slit  168 , the engagement portion  66   c  engages with a bottom surface  124   d  of the medium supply port cover  124 , and as illustrated in  FIG. 35 , pushes up the medium supply port cover  124  in the opening direction. 
     With reference to  FIG. 36 , when the reading mechanism unit  114  is further opened, the top surface  58   a  of the document cover  158  and the front surface side end portion of the medium supply port cover  124  in the apparatus depth direction come into contact with each other. 
     Here, an angle α in  FIG. 36  is the angle from a contact position S 1  between the document cover  158  and the medium supply port cover  124 , formed between a top surface  58   a ′ (a top surface of the document cover  158  which is positioned on the bottom side to the bottom side from the contact position S 1  in  FIG. 36 ) of a tilting shaft side of the document cover  158  and the top surface  124   e  of the medium supply port cover  124 . The angle α is set to an acute angle, for example. Therefore, as illustrated in  FIG. 37 , when the reading mechanism unit  114  is further opened in a state in which the document cover  158  is opened, since the angle α is set to an acute angle, the document cover  158  pushes the medium supply port cover  124  in an opening direction. In other words, the document cover  158  applies an external force to the medium supply port cover  124  in the opening direction. 
     The magnitude of the repulsive force which the document cover  158  receives from the medium supply port cover  124  is set, for example, so as not to exceed a magnitude which is necessary in order to close the document cover  158  from the opened state. Accordingly, when the reading mechanism unit  114  is opened in a state in which the document cover  158  is opened, the medium supply port cover  124  suppresses unintentional closing, and it is possible to smoothly open the medium supply port cover  124 . 
     When the reading mechanism unit  114  is opened in a state in which the medium supply port cover  124  and the document cover  158  are in contact with each other, since it is possible to suppress or avoid the medium supply port cover  124  assuming a state of being propped against the document cover  158 , it is possible to prevent at least one of the medium supply port cover  124  and the document cover  158  from being damaged. 
     Modification Example of First Example 
     By modifying the shapes of the engaged portion  66   b  and the engagement portion  66   c  in the rocking member  166 , as appropriate, it is possible to modify the timing of the contact between the document cover  158  and the engaged portion  66   b , and the timing of the contact between the engagement portion  66   c  and the medium supply port cover  124 , as appropriate. Accordingly, it is possible to set the timing at which the medium supply port cover  124  opens in relation to the timing at which the document cover  158  opens, as appropriate. 
     Second Example 
     Next, description will be given of the second example with reference to  FIGS. 38 to 40 . With reference to  FIGS. 38 and 39 , a medium supply port cover  170  is attached to the rear surface side end portion of the apparatus main body  112 . A long hole  70   a  which extends in the apparatus width direction is formed in the medium supply port cover  170 . The tilting shaft  162   a  of the hinge  162  is inserted into the long hole  70   a . A biasing unit  172  which biases the tilting shaft  162   a  to the rear surface side of the apparatus depth direction is provided in the long hole  70   a . The biasing unit  172  is configured as a compressed coil spring. 
     Here, when an external force (refer to arrow B in  FIG. 39 ) is applied to the medium supply port cover  170  toward the rear surface side in the apparatus depth direction, the tilting shaft  162   a  moves inside the long hole  70   a  relative to the front surface side in the apparatus depth direction with respect to the medium supply port cover  170  against the biasing force of the biasing unit  172  inside the long hole  70   a . In other words, the tilting shaft  162   a  moves in the direction of arrow C with respect to the long hole  70   a . Accordingly, the medium supply port cover  170  slides to the rear surface side in the apparatus depth direction with respect to the tilting shaft  162   a.    
     When the external force (the force in the orientation of arrow B) which is applied to the medium supply port cover  170  to the rear surface side in the apparatus depth direction is removed, the medium supply port cover  170  slides to the front surface side in the apparatus depth direction due to the biasing force of the biasing unit  172 , and returns to the original state. 
     The hinge  162  engages with one end of the biasing unit  164  in the same manner as in the first example. The other end of the biasing unit  164  engages with the biasing unit attachment portion  112   b . The biasing unit  164  biases the hinge  162  to the bottom side in the apparatus height direction. The medium supply port cover  170  is capable of being displaced in the apparatus height direction with respect to the apparatus main body  112  in the same manner as in the first example. 
     As illustrated in  FIG. 40 , when the reading mechanism unit  114  is opened in the state in which the document cover  158  is opened, the top surface  58   a  of the document cover  158  and a distal end  70   b  of the front surface side of the medium supply port cover  170  in the apparatus depth direction come into contact with each other. When the reading mechanism unit  114  is further opened to the rear surface side in the apparatus depth direction, the document cover  158  presses the medium supply port cover  170  in the apparatus depth direction. 
     Accordingly, the medium supply port cover  170  is caused to slide to the rear surface side in the apparatus depth direction against the biasing force of the biasing unit  172  due to the document cover  158 . As a result, even if the reading mechanism unit  114  is opened in the state in which the document cover  158  is opened, it is possible to suppress or prevent damage to the medium supply port cover  170 . 
     To summarize the description hereunto, the printer  110  is provided with the medium supply port  26  which is provided on the top portion of the apparatus main body  112  which is provided with the recording head  50  which performs recording on the medium and in which it is possible to set the medium, the reading mechanism unit  114  which is provided on the top portion of the apparatus main body  112  to be capable of opening and closing and which reads the document, the medium supply port cover  124  which opens and closes the medium supply port  26  and is provided on the apparatus main body  112 , and the document cover  158  which is a cover which opens and closes the document stand  56  with which the reading mechanism unit  114  is provided, has the same opening direction as the medium supply port cover  124 , and is provided on the reading mechanism unit  114 , in which the document cover  158  and the medium supply port cover  124  are in a positional relationship in which the distal end of the medium supply port cover  124  comes into contact with the document cover  158  in a process in which the reading mechanism unit  114  is opened from a state in which the reading mechanism unit  114  and the medium supply port cover  124  are closed and the document cover  158  is opened, and the document cover  158  applies an external force to the medium supply port cover  124  in the opening direction. 
     According to the configuration which is described above, the document cover  158  and the medium supply port cover  124  are in a positional relationship in which the distal end of the medium supply port cover  124  comes into contact with the document cover  158  in a process in which the reading mechanism unit  114  is opened from a state in which the reading mechanism unit  114  and the medium supply port cover  124  are closed and the document cover  158  is opened, and the document cover  158  applies an external force to the medium supply port cover  124  in the opening direction, and so it is possible to suppress or avoid damage to the medium supply port cover  124  when the reading mechanism unit  114  is opened from the state in which the reading mechanism unit  114  and the medium supply port cover  124  are closed and the document cover  158  is opened. As a result, it is no longer necessary to greatly separate the document cover  158  from the medium supply port cover  124 , and it is possible to realize a favorable external appearance of the apparatus. 
     In the process in which the reading mechanism unit  114  is opened from a state in which the reading mechanism unit  114  and the medium supply port cover  124  are closed and the document cover  158  is opened, the repulsive force which the document cover  158  receives from the medium supply port cover  124  does not exceed a magnitude which is necessary for closing the document cover  158 . According to this configuration, it is possible to avoid a problem of the document cover  158  being unintentionally closed in the process in which the reading mechanism unit  114  is opened from a state in which the reading mechanism unit  114  and the medium supply port cover  124  are closed and the document cover  158  is opened. 
     The printer  110  is configured to be provided with the rocking member  166  which is capable of engaging with the document cover  158  and the medium supply port cover  124  and is capable of rocking, and when the document cover  158  is opened from a state in which the reading mechanism unit  114 , and the document cover  158  and the medium supply port cover  124  are closed, the rocking member  166  rocks to push up the medium supply port cover  124 . According to this configuration, by also opening the medium supply port cover  124  to a certain degree when the document cover  158  is opened, it is possible to render the contact angle of the medium supply port cover  124  with respect to the document cover  158  when the reading mechanism unit  114  is opened less acute. As a result, it is possible to more reliably suppress or avoid damage to the medium supply port cover  124  when the reading mechanism unit  114  is opened from a state in which the reading mechanism unit  114 , and the document cover  158  and the medium supply port cover  124  are closed. 
     In the process in which the reading mechanism unit  114  is opened from a state in which the reading mechanism unit  114  and the medium supply port cover  124  are closed and the document cover  158  is opened, the angle α from the contact position S 1  at which the medium supply port cover  124  comes into contact with the document cover  158 , formed between the top surface  58   a ′ of the document cover  158  of the tilting shaft side of the document cover  158  and the top surface  124   e  of the medium supply port cover  124  is an acute angle. According to this configuration, it is possible to still more smoothly open the medium supply port cover  124 , and as a result, it is possible to more reliably suppress or avoid damage to the medium supply port cover  124 . 
     The first inclined surface  124   c  is formed on the distal end of the medium supply port cover  124 , the second inclined surface  58   b  which faces the first inclined surface  124   c  is formed on the base end side of the document cover  158 , and when the reading mechanism unit  114  is opened from a state in which the reading mechanism unit  114 , the document cover  158 , and the medium supply port cover  124  are closed, the second inclined surface  58   b  is provided with a configuration to push up the first inclined surface  124   c  in the direction in which the medium supply port cover  124  opens. According to this configuration, it is possible to suppress or avoid damage to the medium supply port cover  124  when the reading mechanism unit  114  is opened from a state in which the reading mechanism unit  114 , the document cover  158 , and the medium supply port cover  124  are closed. 
     In plan view of the document cover  158  and the medium supply port cover  124 , at least a portion of the second inclined surface  58   b  overlaps the first inclined surface  124   c . According to this configuration, the inside of the document cover  158  and the medium supply port cover  124 , that is, the top portion of the apparatus main body  112  is not exposed in plan view of the document cover  158  and the medium supply port cover  124 , and it is possible to realize a favorable external appearance of the apparatus. 
     The printer  110  is provided with the medium supply port  26  which is provided on the top portion of the apparatus main body  112  which is provided with the recording head  50  which performs recording on the medium and in which it is possible to set the medium, the reading mechanism unit  114  which is provided on the top portion of the apparatus main body  112  to be capable of opening and closing and which reads the document, the medium supply port cover  170  which opens and closes the medium supply port  26  and is provided on the apparatus main body  112 , and the document cover  158  which is a cover which opens and closes the document stand  56  with which the reading mechanism unit  114  is provided, has the same opening direction as the medium supply port cover  170 , and is provided on the reading mechanism unit  114 , in which the medium supply port cover  170  is capable of sliding in the apparatus depth direction which is a direction intersecting the tilting axial line direction, and in which the document cover  158  and the medium supply port cover  170  are in a positional relationship in which the distal end  70   b  of the medium supply port cover  170  comes into contact with the document cover  158  in a process in which the reading mechanism unit  114  is opened from a state in which the reading mechanism unit  114  and the medium supply port cover  170  are closed and the document cover  158  is opened, and the document cover  158  causes the medium supply port cover  170  to slide. 
     According to the configuration which is described above, the medium supply port cover  170  is capable of sliding in the apparatus depth direction which is a direction intersecting the tilting axial line direction, the document cover  158  and the medium supply port cover  170  are in a positional relationship in which the distal end  70   b  of the medium supply port cover  170  comes into contact with the document cover  158  in a process in which the reading mechanism unit  114  is opened from a state in which the reading mechanism unit  114  and the medium supply port cover  170  are closed and the document cover  158  is opened, and the document cover  158  is configured to cause the medium supply port cover  170  to slide, and so it is possible to suppress or avoid damage to the medium supply port cover  170  when the reading mechanism unit  114  is opened from the state in which the reading mechanism unit  114  and the medium supply port cover  170  are closed and the document cover  158  is opened. As a result, it is no longer necessary to greatly separate the document cover  158  from the medium supply port cover  170 , and it is possible to realize a favorable external appearance of the apparatus. 
     The top surface  124   e  of the medium supply port cover  124  and the top surface  58   a  of the document cover  158  form the same surface. According to this configuration, it is possible to realize a more favorable external appearance of the apparatus. 
     In the present embodiment, the reading mechanism unit  114 , the medium supply port covers  124  and  170 , and the document cover  158  are applied to the ink jet printer which serves as an example of the recording apparatus; however, it is also possible to apply the reading mechanism unit  114 , the medium supply port covers  124  and  170 , and the document cover  158  to other liquid ejecting apparatuses in general. 
     Here, the liquid ejecting apparatus indicated in the first and second embodiments is not limited to a recording apparatus such as a printer, a copier, or a facsimile in which an ink jet recording head is used and which performs recording on a recording medium by ejecting an ink from the recording head, and the liquid ejecting apparatus includes an apparatus which, instead of the ink, ejects a liquid which corresponds to the use of the ink from a liquid ejecting head which corresponds to the ink jet recording head onto an ejection target medium which corresponds to the recording medium, and causes the liquid to adhere to the ejection target medium. 
     In addition to the recording head, examples of the liquid ejecting head include a color material ejecting head which is used in the manufacture of color filters of liquid crystal displays or the like, an electrode material (conductive paste) ejecting head which is used in the electrode formation of organic EL displays, field emission displays (FED), or the like, a biological organic matter ejecting head which is used in the manufacture of bio chips, and a sample ejecting head which serves as a precision pipette. 
     Third Embodiment 
     Description will be given of an outline of the printer according to the third embodiment of the invention. 
       FIG. 41  is an external perspective diagram of a printer according to an embodiment.  FIG. 42  is a perspective diagram representing a state in which a manual cover in the printer according to the embodiment is opened.  FIG. 43  is a perspective diagram illustrating a state in which a cover of a reading mechanism unit in the printer according to the embodiment is opened.  FIG. 44  is a perspective diagram illustrating a state in which the reading mechanism unit is opened with respect to a recording mechanism unit main body in the printer according to the embodiment.  FIG. 45  is a diagram illustrating a paper transport path in the printer according to the embodiment.  FIG. 46  is a main portion plan diagram of the printer according to the embodiment.  FIGS. 47A, 47B, and 47C  are diagrams explaining the operation of a regulating member.  FIGS. 48A, 48B, and 48C  are diagrams explaining a biasing mechanism which uses a torsion spring. 
       FIG. 49  is an external perspective diagram of a regulating member.  FIG. 50  is a main portion enlarged perspective diagram of the regulating member which is attached to the recording mechanism unit main body.  FIG. 51  is a main portion enlarged perspective diagram of a periphery of a tilting shaft to which the regulating member is attached in the recording mechanism unit main body.  FIG. 52  is a main portion enlarged perspective diagram of the regulating member.  FIG. 53  is a diagram representing a state in which the manual cover to be closed is in contact with an induction portion of a regulating member.  FIGS. 54A and 54B  are diagrams explaining an opening angle of the regulating member.  FIG. 55  is a plan diagram of a surface which faces a document stand in a document stand cover.  FIG. 56  is a sectional diagram taken along LVI-LVI of  FIG. 55 .  FIG. 57  is a sectional diagram taken along LVII-LVII of  FIG. 55 . 
     In the X-Y-Z coordinate system illustrated in the drawings, the X direction is the scanning direction of the recording head, and the Y direction is the apparatus depth direction. The Z direction is the direction of gravity and indicates the apparatus height direction. The +Y direction side is the apparatus front surface side, and the −Y direction side is the apparatus rear surface side. As viewed from the apparatus front surface side, the right side is the +X direction, and the left side is the −X direction. The +Z direction is the top of the apparatus (the top portion, including the top surface and the like), and the −Z direction side is the bottom of the apparatus (the bottom portion, including the bottom surface and the like). 
     Hereinafter, the transport direction (the +Y direction side) in which the paper is transported in a printer  201  will be referred to as “downstream”, and the opposite direction (the −Y direction side) will be referred to as “upstream”. 
     First Example 
     Overall Configuration of Printer 
     Hereinafter, an outline description will be given of the overall configuration of the printer  201 . 
     The printer  201  ( FIG. 41 ) according to the present example is provided with a recording mechanism unit  215  and a reading mechanism unit  203  ( FIG. 43 ). The recording mechanism unit  215  is configured to be provided with a recorder (a recording head  230  to be described later, refer to  FIG. 45 ) which performs ink jet recording on the paper which serves as a recording medium inside a recording mechanism unit main body  202 , and the reading mechanism unit  203  is provided on the top portion of the recording mechanism unit main body  202  and reads the document. In other words, the printer  201  is configured as a multi-functional device which is provided with a scanner function in addition to an ink jet recording function. 
     A medium supply port  207  which is provided with a manual tray  217  ( FIGS. 42 and 44 ) in which it is possible to set paper to be recorded on by the recording mechanism unit  215  is provided on the top portion of the recording mechanism unit main body  202  which serves as a housing which configures the apparatus main body. 
     A manual cover  206  (a first opening/closing body) which serves as a lid body which opens and closes the medium supply port  207  is provided on the rear top portion of the recording mechanism unit main body  202 , and it is possible to perform the paper feeding by manually inserting the paper P which uses the manual tray  217  by opening the manual cover  206  as illustrated in  FIGS. 42 and 45 . The manual cover  206  supports the paper P which is supplied from the medium supply port  207  and is set in the manual tray  217  in the opened state ( FIG. 45 ). Accordingly, it is possible to perform stable supplying of the paper P from the manual tray  217 . 
     The reading mechanism unit  203  is provided to be capable of tilting with respect to the recording mechanism unit main body  202  of the recording mechanism unit  215 , and is capable of assuming a state in which the top portion of the recording mechanism unit  215  is closed ( FIG. 41 ) and a state in which the top portion of the recording mechanism unit  215  is opened ( FIG. 44 ) by tilting. 
     The reading mechanism unit  203  is connected to be capable of tilting with respect to the recording mechanism unit  215  at connecting portions  235  ( FIG. 44 ) which are provided on both sides in the X direction. A tilting shaft  236  ( FIG. 45 ) is provided on each of the connecting portions  235 , the tilting shafts  236  are axially supported by bearings (not illustrated) which are provided on the recording mechanism unit main body  202  side, and the reading mechanism unit  203  is configured to tilt using the X direction as the tilting axial line direction so as to open and close the top portion of the recording mechanism unit  215 . 
     In other words, the reading mechanism unit  203  includes the tilting shafts  236  (refer to  FIG. 45 ) in positions at which a downward inclined surface heading toward the medium supply port  207  is formed in the opened state ( FIG. 44 ). 
     The reading mechanism unit  203  is provided with a document stand cover  204  ( FIGS. 41 and 43 ) which is a document cover which is capable of opening and closing the top portion, and the document stand cover  204  is configured to open and close a document stand  203   a  as illustrated in  FIG. 43 . 
     In the document stand cover  204 , tilting shafts  238  (refer to  FIGS. 43 and 45 ) which are provided on a cover main body  237  ( FIG. 56 ) which forms the top surface of the document stand cover  204  are attached to bearing portions (not illustrated) which are provided on the recording mechanism unit main body  202  side and are configured to tilt using the X direction as the tilting axis. 
     In the same manner as in the reading mechanism unit  203 , the document stand cover  204  also includes the tilting shafts  238  (refer to  FIG. 45 ) in positions at which a downward inclined surface heading toward the medium supply port  207  is formed in the opened state ( FIG. 43 ). 
     When the document stand cover  204  or the reading mechanism unit  203  is opened, a regulating member  240  (refer to  FIG. 45 ) which regulates the slipping and falling of an object into the medium supply port  207  is provided between the manual cover  206  and the document stand cover  204 . More detailed description of the configuration of the regulating member  240  will be given later. 
     On the apparatus front surface of the printer  201  of  FIG. 41 , reference symbol  205  is an operation panel  205  which is formed by providing a power button, operation buttons which perform various print settings and recording execution, a display unit which performs preview display or the like of print setting content and a print image, and the like. 
     The reference symbol  209  is a front surface cover which is provided on a bottom side tray  213  ( FIG. 45 ) and is capable of opening and closing. As illustrated in  FIG. 45 , a configuration is adopted in which the bottom side tray  213 , a top side tray  214 , and a paper output receiving tray  208  become visible by opening the front surface cover  209 . 
     The paper output receiving tray  208  is provided to be capable of assuming a state of being stored in the recording mechanism unit main body  202  by a motor which is not illustrated, ( FIG. 41 ), and a state of protruding to the front side of the recording mechanism unit main body  202  ( FIG. 45 ), and by assuming the state of protruding to the front side of the recording mechanism unit main body  202 , is capable of receiving the paper which is subjected to recording and is output. 
     The bottom side tray  213  and the top side tray  214  which is provided above the bottom side tray  213  which are illustrated in  FIG. 45  are capable of storing a plurality of sheets of paper, and each is independently attached to the recording mechanism unit main body  202  in a detachable manner. Even in a state in which one side is in the non-mounted state, as long as the other side is mounted, it is possible to feed the paper out from the mounted tray. 
     Description will be given later of the paper transport path in the recording mechanism unit  215  of the printer  201 . 
     Regarding Regulating Member 
     Next, detailed description will be given of the regulating member  240  which regulates the slipping and falling of an object into the medium supply port  207  which is described earlier. 
     The regulating member  240  is configured to be capable of assuming a storage state ( FIGS. 47A and 48A ) and a regulating state ( FIGS. 47B and 48B ). In the storage state, the regulating member  240  is positioned on the inside of the manual cover  206  and is closed in a state in which the manual cover  206  (the first opening/closing body) is closed, and in the regulating state, the regulating member  240  opens together with an opening operation of the manual cover  206  and forms a surface (a regulating surface  40   b ) which intersects the top surface of a second opening/closing body  241  to regulate the slipping and falling of an object from the top surface of the second opening/closing body  241  into the medium supply port  207 . The regulating member  240  is biased from the storage state to the regulating state by a torsion spring  242  (refer to  FIGS. 48A, 48B, and 48C ) which serves as the biasing member. 
     In the present example, it can be said that the document stand cover  204  is the second opening/closing body  241  when the document stand cover  204  is opened with respect to the document stand  203   a  (refer to  FIG. 43 ). It can be said that the reading mechanism unit  203  is the second opening/closing body  241  when the reading mechanism unit  203  is opened in a state in which the document stand cover  204  is closed (refer to  FIG. 44 ). 
     In the present example, the regulating member  240  is configured to be capable of switching between the storage state and the regulating state by tilting using a tilting shaft  243  as an axis. 
     More specifically, the tilting shaft  243  which is provided on the recording mechanism unit main body  202  is inserted ( FIGS. 50 and 51 ) into a shaft hole  40   a  which is provided in both end portions of the regulating member  240  ( FIG. 49 ) in the longitudinal direction (the X direction), and the regulating member  240  is attached to the recording mechanism unit main body  202  to be capable of tilting. 
     The regulating member  240  is also provided with a shaft hole  40   d  in the center portion in the longitudinal direction (the X direction), and a tilting shaft  244  ( FIG. 46 ) which is provided in the recording mechanism unit main body  202  is axially supported by the shaft hole  40   d.    
     The torsion spring  242  which biases the regulating member  240  engages with the recording mechanism unit main body  202  (the housing) and the regulating member  240  to exert a biasing force. By using the torsion spring  242 , it is possible to bias the regulating member  240 , which is simple in structure and tilts, from the storage state to the regulating state. The biasing mechanism which uses the torsion spring  242  will be described in detail later. 
     Next, the regulating member  240  is provided ( FIGS. 47C and 48C ) so as to be capable of tilting further in the opening direction by receiving an external force such as pushing by hand, for example, from the regulating state ( FIGS. 47B and 48B ). 
     In the printer  201 , an edge guide  233  ( FIGS. 42 and 46 ) which guides both end portions of the paper P, which is set in the manual tray  217 , in the width direction (the X direction) is provided on the inside of the medium supply port  207 . The edge guide  233  is configured to be capable of moving in the X direction through being operated by hand by the user according to the width size of the paper P which is set in the manual tray  217 . 
     Due to the regulating member  240  being provided to be capable of tilting further in the opening direction from the regulating state by receiving an external force, when a hand is inserted into the inside of the medium supply port  207 , for example, it is possible to secure a wide operation space in a case in which the edge guide  233  which is provided on the inside of the medium supply port  207  is operated, or the like. 
     Regarding Biasing Mechanism 
     Next, description will be given of the biasing mechanism of the regulating member  240  which uses the torsion spring  242 . 
     The torsion spring  242  is configured to bias the regulating member  240  in the closing direction in a state in which the regulating member  240  is further opened from the regulating state by switching the part which engages in the recording mechanism unit main body  202  and the regulating member  240  using the regulating state of the regulating member  240  as the boundary for switching. 
     In other words, the regulating member  240  is configured to be automatically opened from the storage state to the regulating state when the manual cover  206  is opened by the one torsion spring  242 , and when the hand is released to remove the external force from the state in which the regulating member  240  is further opened from the regulating state upon receiving an external force such as pushing by hand, the regulating member  240  returns to the regulating state without the intervention of user operation. 
     Hereinafter, more detailed description will be given of the configuration. 
     As illustrated in  FIGS. 48A to 48C , the torsion spring  242  is provided with a coil portion  42   a , and a one side arm portion  42   b  and another side arm portion  42   c  which extend from the coil portion  42   a , and the coil portion  42   a  is inserted into the tilting shaft  243  which is provided in the recording mechanism unit main body  202 . 
     Furthermore, the recording mechanism unit main body  202  (refer to  FIGS. 48A to 48C and 51 ) is provided with a first contacting portion  245  which comes into contact with the one side arm portion  42   b  of the torsion spring  242  and receives the biasing force of the torsion spring  242  when the regulating member  240  is between the storage state ( FIG. 48A ) and the regulating state ( FIG. 48B ), and a second contacting portion  246  which comes into contact with the other side arm portion  42   c  of the torsion spring  242  and receives the biasing force of the torsion spring  242  in a state ( FIG. 48C ) in which the regulating member  240  is further opened from the regulating state. 
     Furthermore, the end portion in the longitudinal direction of the regulating member  240  (refer to  FIGS. 48A to 48C and 52 ) is provided with a first acting portion  247  which comes into contact with the other side arm portion  42   c  of the torsion spring  242  and receives the biasing force of the torsion spring  242  when the regulating member  240  is between the storage state ( FIG. 48A ) and the regulating state ( FIG. 48B ), and a second acting portion  248  which comes into contact with the one side arm portion  42   b  of the torsion spring  242  and receives the biasing force of the torsion spring  242  in a state ( FIG. 48C ) in which the regulating member  240  is further opened from the regulating state. 
     The torsion spring  242  is configured to be capable of switching the biasing direction of the regulating member  240  using the regulating state ( FIG. 48B ) of the regulating member  240  as a boundary by switching between a state ( FIG. 48A ) in which the torsion spring  242  engages with the first contacting portion  245  and the first acting portion  247 , and an engagement state ( FIG. 48C ) in which the torsion spring  242  engages with the second contacting portion  246  and the second acting portion  248 . 
     In other words, in the state ( FIG. 48A ) in which the torsion spring  242  engages with the first contacting portion  245  and the first acting portion  247 , the regulating member  240  is biased by the torsion spring  242  from the storage state in the direction of opening to the regulating state. 
     In the engagement state ( FIG. 48C ) in which the second contacting portion  246  and the second acting portion  248  are engaged with each other, the regulating member  240  is biased from the state in which the regulating member  240  is further opened from the regulating state by the torsion spring  242  in a direction returning to the regulating state. 
     According to this configuration, it is possible to switch the direction in which the regulating member  240  is biased using one biasing member (the torsion spring  242 ) to reduce the cost of the apparatus. 
     Naturally, it is also possible to separately provide a biasing member which biases the regulating member  240  from the storage state to the regulating state, and a biasing member which biases the regulating member  240  from a state of being opened from the regulating state in the closing direction. 
     The torsion spring  242  may be provided on at least the end portion of one side in the longitudinal direction; however, it is possible to provide the torsion spring  242  on the end portions of both sides. It is also possible to provide the torsion spring  242  on the tilting shaft  244  ( FIG. 46 ) of the center portion in the longitudinal direction. 
     By providing the regulating member  240  which is configured in this manner, the following actions and effects may be obtained. 
     In other words, since the regulating member  240  is biased by the torsion spring  242  (the biasing member) from the storage state to the regulating state, it is possible to transition the regulating member  240  from the storage state to the regulating state together with the opening and closing of the manual cover  206  which opens and closes the medium supply port  207 . 
     Therefore, in the state in which the manual cover  206  and the medium supply port  207  are opened, regardless of the opening/closing state of the second opening/closing body  241  (the document stand cover  204  or the reading mechanism unit  203 ), the regulating member  240  always assumes the regulating state, that is, the state in which the falling of foreign matter into the medium supply port  207  is regulated, and it is possible to more reliably suppress or avoid the falling of foreign matter into the medium supply port  207 . 
     As illustrated in  FIGS. 46 and 47B  the regulating member  240  in the regulating state overlaps a portion of the downstream side of the medium supply port  207  in the paper transport direction (the Y direction), and it is possible to suppress a reduction in productivity when supplying the paper to the medium supply port  207  by reducing the size of the regulating member  240 . Since it is possible to open and close the regulating member  240 , it is possible to effectively suppress falling of objects into the medium supply port  207 . In  FIG. 46 , depiction of the manual cover  206  is omitted. 
     In addition, by performing the switching between the storage state and the regulating state by tilting the regulating member  240 , it is possible to provide the regulating member  240  using a simple configuration. 
     In addition to a configuration in which switching between the storage state and the regulating state is performed by tilting the regulating member  240 , the regulating member  240  may be configured to switch between the storage state and the regulating state by, for example, advancing and withdrawing. 
     Next, description will be given of the opening angle of the regulating member  240  using  FIGS. 54A and 54B . 
     In the regulating state ( FIG. 54A ), it is desirable that an opening angle α 1  of the regulating member  240  with respect to the top surface (the X-Y surface) of the apparatus be approximately 60°. 
     When the second opening/closing body  241  is opened with an object still placed on the top of the second opening/closing body  241  (the document stand cover  204  in  FIG. 54A ), the object slides and falls or begins to roll to the side of the medium supply port  207 . The object (for example, a paper clip, a pen, or the like) on the second opening/closing body  241  begins to slide and fall at around the point at which an angle β of the second opening/closing body  241  with respect to the top surface (the X-Y surface) of the apparatus reaches approximately 30°, although this varies depending on the size, shape, material, and the like of the object. 
     When the opening angle α 1  of the regulating member  240  in the regulating state is approximately 60°, an angle γ which is formed between the second opening/closing body  241  in which the angle β reaches the angle (approximately 30°) at which sliding begins, and the regulating surface  40   b  of the regulating member  240  reaches approximately 90°. Due to the regulating member  240  being provided, it is possible to effectively suppress the slipping and falling of the object which is placed on the second opening/closing body  241  into the medium supply port  207  when the second opening/closing body  241  is opened. 
     In the state ( FIG. 54B ) in which the regulating member  240  is further opened from the regulating state, it is desirable that an opening angle α 2  of the regulating member  240  with respect to the top surface (the X-Y surface) of the apparatus be opened greater than 90°, and it is desirable that the opening angle α 2  open to approximately 120°. 
     Accordingly, it is possible to easily perform an operation (an operation of the edge guide  233  or the like) which is performed by inserting a hand into the medium supply port  207  while avoiding interference with the second opening/closing body  241  which is in the closed state. 
     In the present example, the regulating member  240  is provided with an induction portion  40   c  ( FIGS. 50 and 53 ) with which the manual cover  206  comes into contact and which leads the regulating member  240  to the storage state when the manual cover  206  changes from the opened state to the closed state. As illustrated in  FIG. 53 , the induction portion  40   c  is provided on the free end side of both sides of the regulating member  240  in the width direction (the X direction). 
     Due to the regulating member  240  being provided with the induction portion  40   c , the regulating member  240  is guided in the closing direction by the change of the manual cover  206  from the opened state to the closed state, and it is possible to smoothly adopt the storage state. 
     In the present example, a configuration is adopted in which the torsion spring  242  is used as the biasing member; however, it is also possible to use a compression spring, a tension spring, or the like. 
     In the present example, either one of the document stand cover  204  and the reading mechanism unit  203  opens and closes at least a portion other than the medium supply port  207  in the top portion of the recording mechanism unit main body  202  (the housing) as the second opening/closing body  241 ; however, for example, in a printer which does not include the reading mechanism unit  203 , the opening/closing cover which opens and closes the top surface of the recording mechanism unit main body  202  may be provided as the second opening/closing body. It is also possible to use the reading mechanism unit  203  which opens and closes in the top portion of the recording mechanism unit main body  202  (the housing) as the second opening/closing body without providing the document stand cover  204 . 
     Regarding Other Configurations of Document Stand Cover 
     Description will be given of other configurations of the document stand cover  204  with reference to  FIGS. 55 to 57 . 
     As illustrated in  FIG. 55  (also refer to  FIG. 43 ), the document stand cover  204  is provided with the cover main body  237  and a document retaining mat  250  which is attached to the bottom surface (the surface facing the document stand  203   a ) of the cover main body  237 . 
     When the document stand cover  204  is closed, the document which is placed on the document stand  203   a  is pressed by the document retaining mat  250 , and the reading-target surface of the document is in close contact with the document stand  203   a.    
     The document stand cover  204  is provided with a near field wireless communication substrate  251  (hereinafter there are cases in which this is referred to as an NFC substrate  251 ) on the free end side (the +Y side) of the cover main body  237 . 
     For example, the NFC substrate  251  is capable of performing near field wireless communication between the printer  201  and a portable terminal of the user, and is capable of executing information transmission to the portable terminal, setting of the printer  201  from the portable terminal, transfer of image data, recording in the recording mechanism unit  215 , executing the scanning in the reading mechanism unit  203 , and the like. 
     A metal plate  252  which spans a portion other than the position in which the NFC substrate  251  is provided in the apparatus width direction (the X direction) is provided on the free end side (the +Y side) of the cover main body  237 . By providing the metal plate  252 , the rigidity of the document stand cover  204  is improved. 
     The NFC substrate  251  and the metal plate  252  are covered by a cover member  256 , and are positioned between the cover main body  237  and the cover member  256 . 
     Here, in the cover main body  237 , the position at which the NFC substrate  251  is provided is formed thinly. More specifically, as illustrated in  FIGS. 56 and 57 , the cover main body  237  forms the same surface as the top surface side (the +Z side surface) which serves as the document stand cover  204 , and is configured such that the reverse surface thereof is formed thinly to surround the document stand cover  204 . By disposing the NFC substrate  251  in a thinly formed thin portion  253 , it is possible to suppress an increase in the thickness of the document stand cover  204  due to the disposal of the NFC substrate  251 . 
     In the present example, the thin portion  253  having a thickness d 1  is provided with a slope region  255  which is inclined from the thickness d 1  to a thickness d 2  between a portion (hereinafter referred to as a thick portion  254 ) with the original thickness d 2  of the cover main body  237 . 
     Here, in a case in which the cover main body  237  is molded using injection molding of resin, when the recess which is formed thinly is a recessed portion shape which has a rectangular cross sectional shape is formed, for example, that is, when the thin portion  253  which has the thickness d 1  and the thick portion  254  which has the thickness d 2  are formed to be adjacent to each other via a certain boundary line, a difference in the molding shrinkage between the thin portion  253  and the thick portion  254  arises easily due to the thickness deviation, so-called sink marks (depressions or holes) may be formed on the cover main body  237 . 
     When the slope region  255  is present between the thin portion  253  and the thick portion  254 , since the thickness continuously changes from the thickness d 1  to the thickness d 2 , and there is no clear boundary of the thickness deviation, a concern of the occurrence of differences in the molding shrinkage between the thin portion  253  and the thick portion  254  is suppressed, and so it is possible to reduce the concern of the occurrence of the “sink marks”. 
     Regarding Paper Transport Path in Recording Mechanism Unit 
     Hereinafter, description will be given of the paper transport path in the recording mechanism unit  215  of the printer  201  with reference to  FIG. 45 . First, description will be given of the feeding of the paper from the manual tray  217 , and subsequently, description will be given of the feeding of the paper from the bottom side tray  213  which is provided on the bottom portion of the apparatus or the top side tray  214 . 
     In  FIG. 45 , a feed path T 1  of the paper P from the manual tray  217  is indicated using a double-dot-dash line. A feed path T 2  of the paper P from the bottom side tray  213  or the top side tray  214  to the upstream side of a transport drive roller  224  is indicated using a dotted line. 
     The uppermost sheet of paper which is set in the manual tray  217  is picked up by a second feed roller  221  and sent to the downstream side. 
     At the end of the second feed roller  221 , a transport drive roller  224  which is rotationally driven by a motor (not illustrated) and a transport follower roller  225  which is in contact with the transport drive roller  224  and is driven to rotate are provided, the paper P is sent under the recording head  230  by these rollers. 
     Next, the recording head  230  which discharges the ink which serves as the liquid is provided on the bottom portion of a carriage  229 , and the carriage  229  is driven by a motor (not illustrated) so as to reciprocally move in the sub-scanning direction (the X direction). 
     A medium support member  228  which supports the paper P which is transported thereto is provided in a position opposing the recording head  230 , and an interval (PG) is defined between the paper P and the recording head  230  by the medium support member  228 . 
     An output drive roller  231  which is rotationally driven by a motor (not illustrated) and an output follower roller  232  which is in contact with the output drive roller  231  and is driven to rotate are provided on the downstream side of the medium support member  228 . The paper P which is subjected to recording by the recording head  230  is output toward the paper output receiving tray  208  which is described above by the rollers  231  and  232 . 
     The printer  201  is provided with the bottom side tray  213  and the top side tray  214  at the bottom of the apparatus, and it is possible to feed the paper one sheet at a time from the bottom side tray  213  or the top side tray  214 . 
     The top side tray  214  is provided to be capable of sliding (being displaced) between a feed-capable position ( FIG. 45 ), and a withdrawn position (not illustrated) at which the top side tray  214  is moved to the apparatus front surface side (the right direction in  FIG. 45 : the pull-out direction side of the top side tray  214 ), and is configured to receive the motive force of a motor (not illustrated) to be displaced between the feed-capable position and the withdrawn position. 
     In  FIG. 45 , the paper which is stored in the bottom side tray  213  is indicated using the reference symbol P 1 , and the paper which is stored in the top side tray  214  is indicated using the reference symbol P 2  (hereinafter, these will be referred to as the “paper P” in a case in which it is not specifically necessary to distinguish the two). 
     A first feed roller (also referred to as a pickup roller)  210  which is rotationally driven by a motor (not illustrated) is provided on a roller support member  211  (also referred to as a pickup arm or a rocking member) which rocks centered on a tilting shaft  212 , and when the top side tray  214  is in a terminal end position at which the top side tray  214  slides to the rearmost side of the apparatus (in  FIG. 45 , the left direction: the mounting direction side of the top side tray  214 , which is also the paper feed out direction side), that is, at the feed-capable position of the top side tray  214 , the first feed roller  210  feeds out the topmost sheet of the paper P 2  from the top side tray  214  by coming into contact with the topmost sheet of the paper P 2  which is stored in the top side tray  214  and rotating. 
     Meanwhile, in a state in which the top side tray  214  slides to the apparatus front surface side (the +Y side), that is, when the top side tray  214  is in the previously-described withdrawn position, the roller support member  211  rocks centered on the tilting shaft  212 , the first feed roller  210  is capable of coming into contact with the topmost sheet of the paper P 1  which is stored in the bottom side tray  213 , and the topmost sheet of the paper P 1  is fed out from the bottom side tray  213  due to the first feed roller  210  rotating. 
     As described above, even in a case in which one of the bottom side tray  213  and the top side tray  214  is not mounted, it is possible to feed the paper from the other side. 
     An intermediate roller  216  which is rotationally driven by a motor (not illustrated) is provided on the downstream side of the first feed roller  210 , and the paper P is inverted through being curved by the intermediate roller  216  and heads toward the front side of the apparatus. The reference symbols  219  and  220  are follower rollers which are capable of being rotationally driven, and at least the paper P is nipped by the follower roller  219  and the intermediate roller  216 , or is nipped by the follower roller  220  and the intermediate roller  216 , and is fed to the downstream side. 
     The paper P which is fed along the feed path T 2  which is indicated using a dotted line meets with the feed path T 1  (the double-dot-dash line) in front of the transport drive roller  224  and the transport follower roller  225 , and from thereon, on the downstream side, in the same manner as the paper P which is fed from the manual tray  217 , is transported by the transport drive roller  224  and the transport follower roller  225 , is subjected to printing by the recording head  230 , and is output by the output drive roller  231  and the output follower roller  232  toward the paper output receiving tray  208 . 
     In a case in which both sides of the paper P are to be subjected to recording, by switching back the paper P after recording the obverse surface using the recording head  230 , the paper P is caused to enter the feed path from the bottom side of the intermediate roller  216 , and thus, it is possible to subject the reverse surface of the paper P to recording. The reference symbol  218  is a follower roller  218  which is capable of being rotationally driven by the rotation of the intermediate roller  216 . 
     The invention is not limited to the embodiments and examples which are described above, may be modified in various ways within the aspects described in claims, and the modifications should be construed as being included in the invention. 
     The entire disclosure of Japanese Patent Application No. 2016-125682, filed Jun. 24, 2016, 2016-121854, filed June 20 and 2016-125658, filed June 24 are expressly incorporated by reference herein.