Patent Publication Number: US-10328719-B2

Title: Liquid ejecting apparatus

Description:
BACKGROUND 
     1. Technical Field 
     The present invention relates to a liquid ejecting apparatus which dries a medium by applying heat. 
     2. Related Art 
     In the related art, an image forming device which is described in, for example, JP-A-2005-119283 is proposed as a liquid ejecting apparatus of this type. The image forming device includes a liquid ejecting head which forms an image on a medium that is transported along a predetermined transport path, and a drying unit which is disposed on a downstream side of the liquid ejecting head in transport direction. Multiple nozzles which are opened in a nozzle forming surface are provided in the liquid ejecting head, and liquid such as ink is ejected from the nozzle onto the medium. In addition, the drying unit heats a medium thereby drying the medium to which liquid is attached. In this way, the medium to which liquid is attached is forcibly dried by the drying unit, and thus, it is possible to prevent liquid from being attached to various components such as a roller which is disposed in the transport path through the medium. 
     However, in the aforementioned liquid ejecting apparatus, various types of maintenance is performed to prevent liquid ejection accuracy of a liquid ejecting head from decreasing. A maintenance member which is used for the maintenance can be configured to be able to move between a working position around the liquid ejecting head and a retracted position separated from the liquid ejecting head. A space forming member such as a cap which forms a closed space at which a nozzle of the liquid ejecting head is opened, an absorbing member which absorbs liquid attached to the liquid ejecting head, a wiping member which wipes an area in the liquid ejecting head at which the nozzle is opened, or the like can be used as the maintenance member. 
     In addition, JP-A-2005-119283 does not disclose or suggest the disposition of the drying unit and a positional relationship between the drying unit and a retracted position of the maintenance member. 
     SUMMARY 
     An advantage of some aspects of the invention is to provide a liquid ejecting apparatus which can set a retracted position of a maintenance member to an appropriate position in which disposition of a drying unit is considered. 
     According to an aspect of the invention, a liquid ejecting apparatus includes a medium supporting unit which supports a medium that is transported along a transport path; a liquid ejecting head which includes a nozzle for ejecting liquid onto a medium that is supported by the medium supporting unit; a drying unit which dries the medium to which liquid is attached by applying heat; and a space forming member which forms a closed space at which the nozzle is opened. The space forming member is configured to move between a space forming position in which the space forming member is disposed when forming the closed space, and a retracted position which is further separated from the drying unit than the space forming position. 
     According to the configuration, it is possible to form the closed space at which the nozzle is opened by disposing the space forming member different from the medium supporting unit in the space forming position. In addition, it is possible to prevent liquid in the nozzle from evaporating, and to prevent viscosity of liquid in the nozzle from increasing, by retaining liquid for moisturizing in the space forming member thereby maintaining high humidity in the closed space. In addition, it is possible to perform cleaning which forcibly discharges liquid into the closed space. 
     Here, in order to prevent the viscosity of the liquid in the nozzle from increasing, it is preferable that, while the space forming member is located at the retracted position, the liquid retained in the space forming member does not evaporate. At this point, in the aforementioned configuration, the retracted position of the space forming member is further separated from the drying unit than the space forming position. For this reason, while the space forming member is located at the retracted position, the space forming member is hardly affected by the heat which is emitted from the drying unit, and the liquid retained in the space forming member is prevented from evaporating. Accordingly, in a case where the space forming member moves to the space forming position to form the closed space, the humidity in the closed space can be increased by the liquid retained in the space forming member. As a result, the liquid in the nozzle hardly evaporates, and an increase of the viscosity of the liquid in the nozzle is easily prevented. Hence, it is possible to set the retracted position of the space forming member which is an example of a maintenance member to an appropriate position in which disposition of the drying unit is considered. 
     According to another aspect of the invention, a liquid ejecting apparatus includes a liquid ejecting head which includes a nozzle for ejecting liquid onto a medium that is transported along a transport path; a drying unit which dries the medium to which liquid is attached by applying heat; and an absorbing member which absorbs liquid that is attached to the liquid ejecting head. The absorbing member is configured to move between a contact position in which the absorbing member comes into contact with the liquid ejecting head, and a retracted position which is separated from the liquid ejecting head and is closer to the drying unit than the contact position. 
     According to the configuration, as the absorbing member comes into contact with the liquid ejecting head, the liquid attached to the liquid ejecting head can be absorbed by the absorbing member. Then, the absorbing member which absorbs the liquid from the liquid ejecting head moves to the retracted position from the contact position. 
     Here, in order to prevent liquid absorption efficiency of the absorbing member from decreasing, it is preferable that the amount of liquid contained in the absorbing member is extremely reduced. At this point, in the aforementioned configuration, the retracted position of the absorbing member is set closer to the drying unit than the contact position. For this reason, when the absorbing member is located at the retracted position, the liquid easily evaporates from the absorbing member due to being affected by heat which is emitted from the drying unit. As a result, the amount of liquid contained in the absorbing member is reduced at a point of time when the absorbing member moves to the contact position, and the liquid attached to the liquid ejecting head is easily absorbed by the absorbing member. Hence, it is possible to set the retracted position of the absorbing member which is an example of a maintenance member to an appropriate position in which disposition of the drying unit is considered. 
     According to still another aspect of the invention, a liquid ejecting apparatus includes a liquid ejecting head which includes a nozzle for ejecting liquid onto a medium that is transported along a transport path; a drying unit which dries the medium to which liquid is attached by applying heat; and a wiping member in a wet state which wipes an area in the liquid ejecting head at which the nozzle is opened by relatively moving with respect to the liquid ejecting head. The wiping member is configured to move between a wiping position in which the wiping member is disposed when wiping the area, and a retracted position which is further separated from the liquid ejecting head and the drying unit than the wiping position. 
     According to the configuration, it is possible to wipe an area in a liquid ejecting head at which the nozzle is opened by relatively moving the wiping member with respect to the liquid ejecting head. In addition, if the area is completely wiped, the wiping member moves from the wiping position to the retracted position. 
     Here, in order to prevent wiping performance to the area of the wiping member from decreasing, it is preferable that a wet state of the wiping member is maintained. At this point, in the aforementioned configuration, the retracted position of the wiping member is further separated from the drying unit than the contact position. For this reason, when the wiping member is located at the retracted position, the wiping member is hardly affected by the heat which is emitted from the drying unit, and the wet state of the wiping member is easily maintained. As a result, it is possible to prevent the wiping performance to the area of the wiping member from decreasing. Hence, it is possible to set the retracted position of the wiping member which is an example of a maintenance member to an appropriate position in which disposition of the drying unit is considered. 
     In the liquid ejecting apparatus, it is preferable that the medium supporting unit is configured to move between a support position below the liquid ejecting head in which the medium supporting unit supports the medium that is transported and a retracted position which is separated from the transport path, when the medium supporting unit is disposed in the support position and the medium supporting unit supports the medium liquid which is ejected from the nozzle is attached to the medium, the drying unit is disposed above the support position, and a retracted position of the space forming member is set to be below the support position. 
     According to the configuration, when the space forming member moves to the space forming position, the medium supporting unit moves from the support position to the retracted position. In addition, if the space forming member moves to the space forming position in this state, the closed space is formed. 
     In addition, in the configuration, the drying unit is disposed above the support position of the medium supporting unit, and the retracted position of the space forming member is below the support position of the medium supporting unit. For this reason, when the medium supporting unit is located at the support position, warm air which is heated by the drying unit and flows toward the space forming member located at the retracted position can be blocked by the medium supporting unit. Hence, it is possible to prevent the liquid which is retained in the space forming member from evaporating, when the space forming member is located at the retracted position. 
     In the liquid ejecting apparatus, it is preferable that the transport path is configured such that the medium passes through a region between the retracted position and the drying unit. 
     According to the configuration, when a medium is transported along the transport path, the medium passes through a region between the space forming member located at the retracted position and the drying unit. For this reason, flowing of gas can be blocked by the medium which is transported along the transport path, such that air heated by the drying unit does not flow toward the space forming member located at the retracted position. Hence, it is possible to increase effects in which liquid retained in the space forming member is prevented from evaporating, when the space forming member is located at the retracted position. 
     In the liquid ejecting apparatus, it is preferable that the drying unit is disposed above an opening of the nozzle. 
     Air which is warmed by heat that is emitted from the drying unit easily moves toward an upper side. At this point, in the aforementioned configuration, the opening of the nozzle is located below the drying unit, and thus, the warmed air is hardly introduced into the nozzle through the opening. Hence, it is possible to prevent liquid in the nozzle from evaporating. 
     It is preferable that the liquid ejecting apparatus further includes a control unit which controls the drying unit, and the control unit performs heating using the drying unit, under the condition that the amount of liquid which is ejected from the nozzle onto the medium is equal to or larger than a threshold. 
     According to the configuration, when the amount of liquid attached to a medium is small, it can be determined that the medium may not be heated by the drying unit, and thus, the medium is not heated by the drying unit. For this reason, it is possible to prevent a drive frequency of the drying unit from increasing, and thus, it is possible to prevent power consumption of the liquid ejecting apparatus from increasing. 
     It is preferable that the liquid ejecting apparatus further includes a mounting unit in which a liquid container that contains liquid which is supplied to the liquid ejecting head is mounted, and the mounting unit is disposed such that at least a part of the liquid container which is mounted in the mounting unit is located immediately above the drying unit. 
     According to the configuration, air heated by the drying unit moves toward an upper side. Then, the temperature of liquid in the liquid container which is mounted in the mounting unit is increased by the heated air. In this way, as the temperature of the liquid increases, viscosity of the liquid decreases. Hence, even when a liquid has high viscosity, the liquid can be stably supplied from the liquid container to the liquid ejecting head. 
    
    
     
       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 a schematic configuration view of a printer as a first embodiment of a liquid ejecting apparatus. 
         FIG. 2  is a configuration view illustrating a state in which an electrostatic transport unit moves to a retracted position, in the printer. 
         FIG. 3  is a schematic view illustrating a state in which a cap is located at a space forming position, in the printer. 
         FIG. 4  is a flowchart illustrating a processing routine which is executed when a control device of the printer drives a drying unit. 
         FIG. 5  is a schematic view illustrating a positional relationship between the drying unit and a mounting unit. 
         FIG. 6  is a schematic view illustrating a part of the printer as a second embodiment of the liquid ejecting apparatus. 
         FIG. 7  is a schematic view illustrating a state in which a cap is located at a space forming position, in the printer. 
         FIG. 8  is a schematic view illustrating a state in which an absorbing member is located at a contact position, in the printer. 
         FIG. 9  is a schematic view illustrating a state in which a wiping member is located at a wiping position, in the printer. 
         FIG. 10  is an operational view illustrating a state in which the wiping member wipes a nozzle forming surface, in the printer. 
         FIG. 11  is an operational view illustrating a state in which a space forming member moves from a retracted position to the space forming position, in a printer as another embodiment of the liquid ejecting apparatus. 
     
    
    
     DESCRIPTION OF EXEMPLARY EMBODIMENTS 
     First Embodiment 
     Hereinafter, a first embodiment in which a liquid ejecting apparatus is embodied will be described with reference to  FIG. 1  to  FIG. 5 . 
     As described in  FIG. 1 , a transport device  29  which transports paper P that is an example of a medium is transported along a transport path  20 , and a print unit  14  which performs printing on the paper P that is transported, are provided in a case  12  of a printer  11  which is an example of the liquid ejecting apparatus. In a case where a direction orthogonal to a paper surface is set to a width direction of the paper in  FIG. 1 , the transport path  20  is formed such that the paper P is transported in a direction orthogonal to the width direction of the paper, preferably, a direction orthogonal to the width direction. 
     The print unit  14  includes a print head  141  of an ink jet type which can simultaneously eject ink that is an example of liquid over approximately the entire area in the width direction of the paper. The print head  141  corresponds to an example of a “liquid ejecting head”. In addition, the ink which is ejected from the print head  141  is attached to the paper P, and thus, an image is formed on the paper P. The print head  141  which is provided in the printer  11  according to the present embodiment is a head which ejects pigment ink that is ink which contains pigment particles. Of course, the print head may be a head which ejects dye ink. 
     A mounting unit  60  in which multiple liquid containers  61  that contain ink are detachably mounted is provided on an upper side (upper left in  FIG. 1 ) in the case  12 . Specifically, the mounting unit  60  is disposed on an upper side further than the print unit  14 . Ink is supplied to the print head  141  through a supply path  62  (refer to  FIG. 5 ) from the liquid container  61  which is mounted in the mounting unit  60 . 
     The transport device  29  includes a discharge mechanism  25  which discharges the printed paper P outside the case  12 , and a feeding mechanism  30  which feeds the paper P which is not printed along the transport path  20 . 
     The discharge mechanism  25  includes multiple discharge roller pairs  19  which are disposed along the transport path  20 . The paper P which is transported by the discharge mechanism  25  is discharged outside the case  12  from a medium outlet  26  which is formed in the case  12 . That is, the medium outlet  26  is a downstream end of the transport path  20 . In addition, the paper P which is discharged from the medium outlet  26  is mounted on a mounting table  55  in a stacked state, as illustrated by a two-dot chain line in  FIG. 1 . 
     The feeding mechanism  30  includes a first medium supply unit  21 , a second medium supply unit  22 , a third medium supply unit  23 , and an electrostatic transport unit  50 . The electrostatic transport unit  50  is disposed immediately below the print unit  14  in  FIG. 1 . A charging belt to which the paper P is adsorbed is provided in the electrostatic transport unit  50 , the charging belt moves, and thereby the paper P is transported downstream in a transport direction. In addition, ink is ejected from the print head  141  onto the paper P. In this regard, an example of a “medium supporting unit” which supports the paper P that is transported along the transport path  20  is configured by the electrostatic transport unit  50 . 
     As illustrated in  FIG. 1  and  FIG. 2 , an electrostatic transport movement device  51  which moves the electrostatic transport unit  50  between two positions of the support position illustrated in  FIG. 1  and the retracted position illustrated in  FIG. 2  is provided in the printer  11  according to the present embodiment. When the paper P is printed, the electrostatic transport unit  50  is disposed in the support position. Meanwhile, when there is no print request to the paper P or maintenance such as cleaning is performed, the electrostatic transport unit  50  is disposed in the retracted position deviated from the transport path  20 . 
     An openable cover  12 F is provided on a side surface (right side surface in  FIG. 1 ) of the case  12 , the cover  12 F is opened, and thereby an insertion opening  12   a  is exposed. The first medium supply unit  21  includes a first feeding roller pair  41  between which the paper P that is inserted into the case  12  through the insertion opening  12   a  exposed in such a way is interposed. Then, the paper P is fed toward the electrostatic transport unit  50  by rotation of two rollers which configure the first feeding roller pair  41 . 
     In addition, a medium cassette  12   c  in which the paper P that is not printed is set in a stacked state is provided in a lower portion of the case  12  in  FIG. 1 . The second medium supply unit  22  is a supply unit for feeding the paper P from the medium cassette  12   c . That is, the second medium supply unit  22  includes a pickup roller  16   a  which sends the paper P on the highest portion in the medium cassette  12   c  outside the medium cassette  12   c , a separation roller pair  16   b  which prevents multiple papers P from being transported in an overlapped state, and a second feeding roller pair  42  between which one sheet of paper P which passes the separation roller pair  16   b  is interposed. Then, the paper P is fed toward the electrostatic transport unit  50  by rotation of two rollers which configure the second feeding roller pair  42 . 
     The third medium supply unit  23  is a supply unit which leads the paper P whose printing of a sheet surface of one side is completed to the electrostatic transport unit  50  again, when two-sided printing is performed in which two sides of the paper P are printed on. That is, a branch transport path  24  which branches from the transport path  20  is formed on a downstream side of the electrostatic transport unit  50  in a transport direction of the paper. In addition, a branch mechanism  27  which is disposed on a downstream side of the electrostatic transport unit  50  in a transport direction of the paper and switches a transport path of the paper P to the transport path  20  or the branch transport path  24 , and a branch transport path roller pair  44  which is disposed in the branch transport path  24  and can rotate in a forward direction and a reverse direction, are provided in the third medium supply unit  23 . 
     In a case where two-sided printing is performed, the paper P whose printing of a sheet surface of one side is completed is led to the branch transport path  24  from the electrostatic transport unit  50  by the branch mechanism  27 . At this time, the paper P is transported downstream in a transport direction by rotation of each roller configuring the branch transport path roller pair  44  in a forward direction. In addition, if the rear end of the paper P is led to the branch transport path  24 , a roller configuring the branch transport path roller pair  44  rotates in a reverse direction, and thereby the paper P is transported in a reverse direction. Then, the paper P is led to an inverting supply path  31  which is located above the print unit  14  in  FIG. 1 . Then, the paper P is fed along the inverting supply path  31  by multiple inverting transport roller pairs  45  which are disposed on the inverting supply path  31 . By doing so, the paper P is joined to the transport path  20  on an upstream side of the electrostatic transport unit  50  in a transport direction of the paper. Thereafter, the paper P is led to the electrostatic transport unit  50  again. In this way, if the paper P is led to the electrostatic transport unit  50  again, a sheet surface on which printing is completed comes into contact with the electrostatic transport unit  50 , and a sheet surface on which printing is not performed faces the print head  141 . 
     In addition, a drying unit  65  that heats the paper P to which the ink ejected from the print head  141  is attached for drying is provided in the printer  11  according to the present embodiment. The drying unit  65  is located on a downstream side (left of the figure) of the print head  141  in a transport direction of the paper, and is disposed above the branch transport path roller pair  44  which is disposed on the branch transport path  24 . The branch transport path roller pair  44  is disposed above the print head  141 . Accordingly, it can be said that the drying unit  65  is disposed above the print head  141 . 
     The drying unit  65  is configured to send warm air downstream. The warm air which is sent by the drying unit  65  reaches not only the paper P which is transported along the branch transport path  24  but also the paper P which is transported by the discharge mechanism  25 . In this way, if the warm air is adsorbed to the paper P, the paper P is heated, and the temperature around the paper P is decreased, and thereby evaporation of the ink adhered to the paper P is promoted. 
     In a case where a surface to which the printer  11  is installed is referred to as an installation surface  1000 , it is assumed that a lateral direction of the figure that is a direction in which the print head  141  and the drying unit  65  are aligned is a “specified direction X”, among the directions along the installation surface  1000 . In this case, a part of the drying unit  65  and a part of the mounting unit  60  overlap each other in the specified direction X and a width direction of the paper. That is, at least a part of a liquid container  61  which is mounted in the mounting unit  60  is located immediately above the drying unit  65 . 
     As illustrated in  FIG. 1  and  FIG. 2 , a cap  70  which is an example of a space forming member, and a cap drive device  73  which moves the cap  70  are provided in the printer  11  according to the present embodiment. The cap  70  is configured to move between a space forming position illustrated in  FIG. 2  and the retracted position illustrated in  FIG. 1 , according to driving of the cap drive device  73 . 
     As illustrated in  FIG. 3 , the cap  70  has a substantially bottom box shape. Then, when the cap  70  moves to the space forming position, the tip (upper end of the figure) of a box shape portion of the cap  70  comes into contact with a nozzle forming surface  143  which is an area in the print head  141  at which multiple nozzles  142  are opened. In addition, when the cap  70  moves to the space forming position and comes into contact with the print head  141 , the cap  70  forms a closed space  72  which is a space that is required by an opening  142 A of each nozzle  142 , together with the nozzle forming surface  143 . 
     A member which comes into contact with the cap  70  at the time of forming the closed space  72  is not limited to the nozzle forming surface  143 , and may be a fixed frame which presses a plate member that configures the nozzle forming surface  143 , or may be a side surface of the print head  141 . 
     In addition, an ink absorbing material  71  is contained in the cap  70 . That is, when the closed space  72  is formed by moving the cap  70  to the space forming position, the ink absorbing material  71  retains the ink, and thus, it is possible to increase the temperature in the closed space  72  to a certain degrees. For this reason, the ink in the nozzle  142  of the print head  141  is prevented from evaporating, and viscosity of the ink in the nozzle  142  is prevented from being increased. 
     In addition, the space forming position of the cap  70  is set to be above a support position of the electrostatic transport unit  50 , and in contrast to this, the retracted position of the cap  70  is set to be below the support position of the electrostatic transport unit  50 . In addition, the retracted position of the cap  70  is set on a side opposite to the drying unit  65  across the space forming position in the specified direction X. In addition, when the paper P is printed, the paper P which is transported along the transport path  20  passes through a region between the cap  70  and the drying unit  65  in the retracted position. 
     The cap  70  is disposed in the space forming position, even when cleaning is performed by discharging the ink through the print head  141 . For this reason, the cap  70  is coupled to a discharge path  75  through which the ink that is discharged from the print head  141  is discharged into a waste liquid recovery unit  74 . In the example illustrated in  FIG. 3 , a suction pump  751  is provided in the discharge path  75 , and the inside of the closed space  72  is changed into negative pressure by driving of the suction pump  751 . As a result, the ink is forcibly discharged into the cap  70  from the print head  141 . 
     Next, a control configuration of the printer  11  according to the present embodiment will be described. 
     As illustrated in  FIG. 1  to  FIG. 3 , the printer  11  includes a control device  100  which is an example of a control unit, and the control device  100  controls the transport device  29 , the print head  141 , the drying unit  65 , the electrostatic transport movement device  51 , and the cap drive device  73 . For example, if image data related to an image which is formed in the paper P is input to the control device  100  together with a print request, the control device  100  converts the image data into print data, and controls the ink from the print head  141 , based on the print data. 
     In addition, when the paper P is printed, the more the amount of attached ink per unit area of the paper P, the longer the time which is taken until the paper P is dried. For this reason, in a case where the amount of attached ink per unit area is relatively small, the paper P is quickly dried even though the paper P is not heated by the drying unit  65 . Accordingly, it can be determined that the driving of the drying unit  65  is not required. Meanwhile, in a case where the amount of attached ink per unit area is relatively large, the paper P is not sufficiently dried if there is no heating which is performed by the drying unit  65 . Accordingly, it can be determined that the drive of the drying unit  65  is required. 
     Hence, a processing routine which is executed by the control device  100  at the time of controlling the drying unit  65  when the paper P is printed, will be hereinafter described with reference to a flowchart illustrated in  FIG. 4 . The processing routine is executed when the paper P starts to be printed. 
     As illustrated in  FIG. 4 , the control device  100  calculates the amount R of ejected ink onto the paper P per unit area, based on the print data, and determines whether or not the ejected amount R is equal to or larger than a threshold RTH (step S 11 ). When the ejected amount R is less than the threshold RTH, it can be determined that the amount of attached ink per unit area of the paper P is small. Meanwhile, when the ejected amount R is equal to or larger than the threshold RTH, it can be determined that the amount of attached ink per unit area of the paper P is large. 
     For this reason, in a case where the ejected amount R is less than the threshold RTH (step S 11 : NO), the control device  100  does not drive the drying unit  65  (step S 12 ), and terminates the present processing routine. Meanwhile, in a case where the ejected amount R is equal to or larger than the threshold RTH (step S 11 : YES), the control device  100  drives the drying unit  65  (step S 13 ), and terminates the present processing routine. That is, in the printer  11  according to the present embodiment, the control device  100  performs heating of the paper P using the drying unit, under conditions that the ejected amount R which is the amount of ink that is ejected from the nozzle  142  of the print head  141  to the paper P is equal to or larger than the threshold RTH. 
     Next, an operation of the printer  11  according to the present embodiment will be described. 
     As illustrated in  FIG. 1 , in a situation in which the cap  70  is located at the retracted position and the electrostatic transport unit  50  is located at the support position, the paper P is printed. At this time, when it is determined that the amount of ink attached to the paper P is large, warm air is sent toward the paper P from the drying unit  65 . 
     In this way, when printing of the paper P is performed, the cap  70  is located at the retracted position separated from the drying unit  65 . In addition, the electrostatic transport unit  50  is disposed between the cap  70  and the drying unit  65  in a vertical direction. Furthermore, the paper P passes through a region between the cap  70  which is located at the retracted position and the drying unit  65 , when printing of the paper P is performed. For this reason, flow of gas can be blocked by the electrostatic transport unit  50  or the paper P, such that the warm air which is sent from the drying unit  65  or air which is warmed by the warm air does not flow toward the cap  70  which is located at the retracted position. Accordingly, the ink which is retained in the ink absorbing material  71  in the cap  70  hardly evaporates. 
     Thereafter, if printing onto the paper P is terminated and the electrostatic transport unit  50  moves to the retracted position, the cap  70  moves to the space forming position and the closed space  72  at which each nozzle  142  of the print head  141  is opened is formed. At this time, the ink which is absorbed in the ink absorbing material  71  gradually evaporates, and thereby the temperature in the closed space  72  is retained in a relatively high state. Accordingly, liquid components of the ink in each nozzle  142  of the print head  141  are prevented from evaporating. That is, viscosity of the ink in each nozzle  142  is prevented from increasing. 
     As illustrated in  FIG. 5 , air which is warmed by the heat that is emitted from the drying unit  65  moves upward. Since the liquid container  61  mounted on the mounting unit  60  is disposed on an upper side of the drying unit  65 , heat of the warmed air is delivered to the liquid container  61 . As a result, the temperature of the ink contained in the liquid container  61  increases. 
     Here, in the printer  11  which uses ink whose viscosity decreases as the temperature increases, the ink in the liquid container  61  is warmed by the heat which is emitted from the drying unit  65 , and thereby the viscosity of the ink decreases. As a result, it is possible to increase flowability of ink flowing through the supply path  62  from the liquid container  61 , and to efficiently supply the ink to the print head  141  under a low temperature environment. 
     Particularly, it is preferable that the mounting unit  60  is disposed such that at least a portion of the liquid container  61  which contains ink whose viscosity decreases as the temperature increases is located immediately above the drying unit  65 . In addition to this, if convection of liquid in the liquid container  61  is also urged by delivering the heat from a bottom portion, with regard to the liquid container  61  which contains liquid that contains sedimentation components such as pigment ink, sedimentation containing components is prevented by stirring, and thus, it is possible to prevent print quality from decreasing due to a change of liquid concentration. 
     As described above, according to the printer  11  of the present embodiment, it is possible to obtain the following effects. 
     (1) In the printer  11  according to the present embodiment, the retracted position of the cap  70  is further separated from the drying unit  65  than the space forming position. For this reason, when the cap  70  is located at the retracted position, the ink attached to the cap  70  and the ink which is retained in the ink absorbing material  71  in the cap  70  hardly evaporate. Hence, it is possible to set the retracted position of the cap  70  to an appropriate position in which disposition of the drying unit  65  is taken into account. 
     As a result, in a case where the closed space  72  is formed by disposing the cap  70  in the space forming position, the temperature in the closed space  72  hardly decreases, and thus, it is possible to prevent viscosity of ink from increasing in each nozzle  142  of the print head  141 . 
     (2) In a case where the electrostatic transport unit  50  is disposed in the support position and the cap  70  is disposed in the retracted position, the electrostatic transport unit  50  is located below the drying unit  65  and above the cap  70 . For this reason, when the electrostatic transport unit  50  is disposed in the support position, the air which is heated by the drying unit  65  and flows toward the cap  70  located at the retracted position can be blocked by the electrostatic transport unit  50 . Hence, it is possible to prevent the ink which is attached to the cap  70  and the ink which is retained in the ink absorbing material  71  in the cap  70  from evaporating, in a situation in which the cap  70  is located at the retracted position. 
     (3) In addition, when the paper P is printed, the paper P passes through a region between the cap  70  located at the retracted position and the drying unit  65 . For this reason, the air which is heated by the drying unit  65  and flows toward the cap  70  located at the retracted position can be blocked by the paper P which is transported along the transport path. Hence, it is possible to prevent the ink which is attached to the cap  70  and the ink which is retained in the ink absorbing material  71  in the cap  70  from evaporating, in a situation in which the cap  70  is located at the retracted position. 
     (4) In addition, in the printer  11  according to the present embodiment, the nozzle forming surface  143  of the print head  141 , that is, the opening  142 A of the nozzle  142  is located below the drying unit  65 . For this reason, the air warmed by the drying unit  65  is hardly introduced into the nozzle  142  through the opening  142 A. For this reason, it is possible to prevent viscosity of the ink in the nozzle  142  which is opened in the nozzle forming surface  143  from increasing. 
     (5) In addition, when the amount of ink attached to the paper P is small, it can be determined that the paper P may not be heated by the drying unit  65 , and thus, the paper P is not heated by the drying unit  65 . For this reason, it is possible to prevent a drive frequency of the drying unit  65  from increasing, and thus, it is possible to prevent power consumption of the printer  11  from increasing. Accordingly, it is possible to prevent the cap  70  from being affected by the heat which is emitted from the drying unit  65 . 
     (6) In addition, the air which is heated by the drying unit  65  moves upward. Then, the temperature of the ink in the liquid container  61  which is mounted in the mounting unit  60  increases due to the heated air. In this way, viscosity of the ink decreases due to the increased temperature of the ink. Hence, it is possible to stably supply the ink to the print head  141  from the liquid container  61 , even though the ink has high viscosity. 
     Second Embodiment 
     Next, a second embodiment in which the liquid ejecting apparatus is embodied will be described with reference to  FIG. 6  to  FIG. 10 . A printer  11  according to the present embodiment is different from that according to the first embodiment in that the printer  11  according to the present embodiment includes an absorbing member and a wiping member as a maintenance member in addition to cap the cap  70 . Hence, in the following description, portions different from those according to the first embodiment will be mainly described, the same symbols or reference numerals will be attached to the same member configuration as in the first embodiment, and repeated description thereof will be omitted. 
     As illustrated in  FIG. 6 , the printer  11  according to the present embodiment includes an absorbing member  80  which absorbs ink attached to the nozzle forming surface  143  of the print head  141 , and an absorbing member drive device  81  which controls movement of the absorbing member  80 . In addition, the printer  11  includes a wiping device  90  which wipes the nozzle forming surface  143  and a wiping drive device  95  which controls movement of the wiping device  90 . The absorbing member  80 , the wiping device  90 , and the cap  70  are disposed below the paper P which is supported by the electrostatic transport unit  50 , when the paper P is printed. 
     In addition, as illustrated in  FIG. 6  and  FIG. 7 , when the cap  70  is moved from the retracted position to the space forming position, the electrostatic transport unit  50  is moved from the support position to the retracted position by drive of the electrostatic transport movement device  51 . In the examples illustrated in  FIG. 6  and  FIG. 7 , the electrostatic transport unit  50  moves from the support position toward a lower side. 
     When the electrostatic transport unit  50  completes movement to the retracted position, or immediately before the movement is completed, the cap drive device  73  starts drive, and the cap  70  moves from the retracted position to the space forming position. Then, the cap  70  which is moved to the space forming position forms the closed space  72  at which each nozzle  142  of the print head  141  is opened. Also in the printer  11  according to the present embodiment, the retracted position of the cap  70  is set to a position which is further separated from the drying unit  65  than the space forming position of the cap  70 , in the same manner as in the first embodiment. 
     As illustrated in  FIG. 6  and  FIG. 8 , the absorbing member  80  can move between a contact position illustrated in  FIG. 8  and the retracted position illustrated in  FIG. 6 , according to driving of the absorbing member drive device  81 . The absorbing member  80  is configured to be able to absorb ink. For example, a porous member having multiple voids can be used as the absorbing member  80 . In addition, the absorbing member  80  includes a contact surface  801  which can come into contact with the nozzle forming surface  143  of the print head  141 , and an area of the contact surface  801  is approximately the same as the nozzle forming surface  143 . 
     If the absorbing member  80  moves to the contact position, the contact surface  801  of the absorbing member  80  comes into contact with the nozzle forming surface  143  of the print head  141 . More specifically, the absorbing member  80  is pressed against the nozzle forming surface  143 . Accordingly, the ink which is attached to the nozzle forming surface  143  is absorbed into the absorbing member  80 . Then, if the ink is completely absorbed into the absorbing member  80  from the nozzle forming surface  143 , the absorbing member  80  is moved from the contact position to the retracted position by the drive of the absorbing member drive device  81 . Accordingly, contact between the absorbing member  80  and the nozzle forming surface  143  is released. 
     A member, which comes into contact with the absorbing member  80 , for absorbing liquid such as ink is not limited to the nozzle forming surface  143 , and may be a fixed frame which presses a plate member that configures the nozzle forming surface  143 , or may be a side surface of the print head  141 . 
     The retracted position of the absorbing member  80  is set to a place closer to the drying unit  65  than the contact position of the absorbing member  80 . More specifically, the retracted position of the absorbing member  80  is further separated from the drying unit  65  than the contact position in a vertical direction, but is set to a position closer to the drying unit  65  than the contact position in the specified direction X. That is, the retracted position of the absorbing member  80  is set to be below the drying unit  65  in a vertical direction, and a straight line distance from the retracted position of the absorbing member  80  to the drying unit  65  is shorter than a straight line distance from the contact position of the absorbing member  80  to the drying unit  65 . For this reason, when the absorbing member  80  is located at the retracted position, the absorbing member  80  is easily heated by the warm air which is sent from the drying unit  65  or the heat which is emitted from the drying unit  65 . 
     As illustrated in  FIG. 6  and  FIG. 9 , the wiping device  90  is located at a position in which the nozzle forming surface  143  including an area in the print head  141  at which the nozzle  142  is opened is wiped by drive of the wiping drive device  95 , and can move between a position illustrated in  FIG. 9  and a position illustrated in  FIG. 6 . 
     As illustrated in  FIG. 9  and  FIG. 10 , the wiping device  90  includes an apparatus main body  91 , a wiping member  92  which is retained in a wet state, and a pressing member  93  which presses the wiping member  92  to the nozzle forming surface  143  of the print head  141 . In this case, it is preferable that the wiping member  92  includes a member which can absorb liquid such as a non-woven fabric or porous material, and enters a wet state by containing the absorbed liquid (impregnating liquid). The liquid (impregnating liquid) which is contained in the wiping member  92  includes components which softens or dissolves components contained in the solidified ink, such as solvent (water, if the solvent is water-based ink) components of the ink (that is, ink which is emitted from the print head  141 ) which is attached to the nozzle forming surface  143 . In addition, the wiping device  90  may have a configuration in which a region including not only the nozzle forming surface  143  but also a fixed frame for pressing a plate member that configures the nozzle forming surface  143  can be wiped by the wiping member  92 . 
     In addition, when the nozzle forming surface  143  is wiped by the wiping member  92 , the pressing member  93  moves in a direction (for example, a lateral direction in  FIG. 10 ) along the nozzle forming surface  143 . As the pressing member  93  moves in this way, the wiping member  92  can wipe the entire area of the nozzle forming surface  143 . Hence, a position of the wiping member  92  illustrated in  FIG. 9  corresponds to a “wiping position” which is disposed when the nozzle forming surface  143  is wiped, and a position of the wiping member  92  illustrated in  FIG. 6  corresponds to a “retracted position” which is separated from the nozzle forming surface  143 . 
     The retracted position of the wiping member  92  is set to a position which is further separated from the drying unit  65  than the wiping position of the wiping member  92 . More specifically, the retracted position of the wiping member  92  is set to a position which is further separated from the drying unit  65  than the wiping position in the specified direction X. That is, the retracted position of the wiping member  92  is located at a side opposite to the drying unit  65  in which the print head  141  is interposed therebetween in the specified direction X. 
     Next, operations on the absorbing member  80  and the wiping device  90  will be mainly described, among operations of the printer  11  according to the present embodiment. The operation on the cap  70  is the same as that of the aforementioned first embodiment, and thus, description thereof will be omitted. 
     When the paper P is printed, the electrostatic transport unit  50  moves to the support position, and meanwhile, the absorbing member  80  moves to the retracted position thereof. The retracted position of the absorbing member is located immediately below the drying unit  65 , and is closer to the drying unit  65  than to the contact position. For this reason, the absorbing member  80  located at the retracted position is heated by the warm air which is sent from the drying unit  65  or the heat which is emitted from the drying unit  65 . 
     In this way, as the absorbing member  80  is warmed or temperature around the absorbing member  80  is decreased by an increase of temperature, the ink absorbed in the absorbing member  80  evaporates from a surface thereof, and during of the absorbing member  80  is promoted. 
     In addition, as printing onto the paper P is terminated, the electrostatic transport unit  50  moves from the support position to the retracted position, and thereafter, the absorbing member  80  moves to the contact position and comes into contact with the print head  141 . At this time, the surface of the absorbing member  80  is dry, and thereby the ink attached to the nozzle forming surface  143  is quickly absorbed into the absorbing member  80  by capillary force of the voids which are opened in a surface thereof. 
     In addition, in a case where the paper P is printed, the wiping member  92  is disposed at the retracted position of the wiping member, the electrostatic transport unit  50  is disposed at the support position, and thereby, the warm air which is sent from the drying unit  65  or the heat which is emitted from the drying unit  65  is blocked by the electrostatic transport unit  50  or the paper P which is transported along the transport path. For this reason, the wiping member  92  located at the retracted position is hardly heated. As a result, the impregnating liquid which is contained in the wiping member  92  is prevented from evaporating, and thus, the wet state of the wiping member  92  is easily retained. 
     Hence, as printing onto the paper P is terminated, the electrostatic transport unit  50  moves from the support position to the retracted position, and thereafter, when the wiping member  92  moves to the wiping position and wipes the nozzle forming surface  143 , the wiping member  92  can perform wiping while wetting the nozzle forming surface  143  using the impregnating liquid which is contained therein. Accordingly, it is possible to efficiently remove contaminants by dissolving the matters attached to the nozzle forming surface  143  using the impregnating liquid, and to prevent the nozzle forming surface  143  from being damaged due to the fact that the attached matters are removed in a dry state. 
     As described above, the printer  11  according to the present embodiment can obtain the following effects, in addition to the same effects as the effects (1) to (6) of the first embodiment. 
     (7) In the printer  11  according to the present embodiment, the retracted position of the absorbing member  80  is set to a position closer to the drying unit  65  than the contact position. For this reason, when the absorbing member  80  is located at the retracted position, the ink from the absorbing member  80  easily evaporates. As a result, the amount of ink contained in the absorbing member  80  is reduced at a point of time when the absorbing member  80  moves to the contact position, and the ink attached to the nozzle forming surface  143  is easily absorbed into the absorbing member  80 . Hence, it is possible to set the retracted position of the absorbing member  80  to an appropriate position in which disposition of the drying unit  65  is taken into account. 
     (8) In the printer  11  according to the present embodiment, the retracted position of the wiping member  92  is set to a position further separated from the drying unit  65  than the wiping position. For this reason, when the wiping member  92  is located at the retracted position, the liquid components which are retained in the wiping member  92  hardly evaporate. As a result, it is possible to prevent wiping performance from being reduced, when the nozzle forming surface  143  of the print head  141  is wiped by the wiping member  92 . Hence, it is possible to set the retracted position of the wiping member  92  to an appropriate position in which disposition of the drying unit  65  is taken into account. 
     (9) In a case where the electrostatic transport unit  50  is disposed at the support position and the wiping member  92  is disposed at the retracted position, the electrostatic transport unit  50  is located between the drying unit  65  and the wiping member  92  (wiping device  90 ). For this reason, when the electrostatic transport unit  50  is disposed in the support position, the air which is heated by the drying unit  65  and flows toward the wiping member  92  located at the retracted position can be blocked by the electrostatic transport unit  50 . Hence, it is possible to easily maintain the wet state of the wiping member  92 , in a situation in which the wiping member  92  is located at the retracted position. 
     (10) In addition, when the paper P is printed, the paper P passes through a region between the wiping member  92  located at the retracted position and the drying unit  65 . For this reason, the air which is heated by the drying unit  65  and flows toward the wiping member  92  located at the retracted position can be blocked by the paper P which is transported along the transport path. Hence, it is possible to easily maintain the wet state of the wiping member  92 , in a situation in which the wiping member  92  is located at the retracted position. 
     Each embodiment described above may be modified as follows. 
     In a case where liquid which contains sedimentation components, such as pigment ink is used as liquid which is ejected from the print head  141 , sedimentation of the contained components is performed and thereby temperature of the liquid can change. For this reason, a circulation flow path for circulating ink may be provided in a supply path from the liquid container  61  to the print head  141 . The circulation flow path may be provided in the middle of a supply flow path between the print head  141  and the liquid container  61 , may be used as a return flow path through which the ink is returned from the middle of the supply flow path to the liquid container  61 , may be used as a return flow path through which the ink returned from the print head  141  to the middle of the supply flow path, and may be used as a return flow path through which the ink is returned from the print head  141  to the liquid container  61 . 
     In this case, if at least a part of the circulation flow path is disposed immediately above the drying unit  65 , temperature of the ink which flows through the circulation flow path can be increased by the heat which is emitted from the drying unit  65 . Accordingly, fluidity of ink can increase or agitation can be promoted by convection. As a result, it is possible to prevent power required for circulation of the ink from increasing. 
     That is, if a sub-tank which temporarily stores the ink in a portion of a supply path (including the circulation flow path) of ink from the liquid container  61  to the print head  141  or in the middle of the supply path is disposed at a position (for example, immediately above the drying unit  65  or position that warm air reaches) in which the heat of the drying unit  65  is easily delivered, without being limited to the liquid container  61 , it is possible to increase fluidity of the ink or to prevent sedimentation of the contained components. 
     In addition to this, in a case where a filter for removing foreign matters or bubbles in the middle of the supply path is disposed, if a portion including the filter is disposed at a position (for example, immediately above the drying unit  65  or position that warm air reaches) in which the heat of the drying unit  65  is easily delivered, viscosity of the ink is decreased by the heat of the drying unit  65 . Accordingly, it is possible to reduce pressure loss when the ink passes through the filter, and to prevent the matter attached to the filter from being solidified. 
     If a part of the supply path  62  is located immediately above the drying unit  65 , the mounting unit  60  may be disposed at a position different from the drying unit  65  in the specified direction X. 
     In a printer or the like which includes the print head  141  of a line head type, the liquid container  61  which contains ink may be provided outside the case  12 . In the printer, a part of the supply path  62  for supplying the ink from the liquid container  61  to the print head  141  may be located at an upper side region (that is, immediately above) of the drying unit  65 . For example, a sub-tank which supplies ink from the liquid container  61  may be disposed on an upper side of the drying unit  65 . 
     In the second embodiment, after wiping of the nozzle forming surface  143  which is performed by the wiping member  92  in a wet state is terminated, the absorbing member  80  may come into contact with the nozzle forming surface  143 . According to this configuration, after foreign matters or liquids which are fixed to the nozzle forming surface  143  are raked into a corner of the nozzle forming surface  143  by wet wiping that is performed by the wiping member  92  in a wet state, the raked foreign matters or liquids can be removed after being dried by the absorbing member  80 . 
     If the drying unit can heat the paper P or gas around the paper, the drying unit may have other configurations in addition to the configuration which sends warm air. For example, the drying unit may be configured to have a heating roller. In this case, the paper P can be heated by pressing the heating roller to the paper P. 
     The drying unit may be divided into two units which are a drying unit dedicated to the paper that is transported along the branch transport path  24 , and a drying unit dedicated to the paper that is transported by the discharge mechanism  25 . In this case, it is preferable that the two types of drying units are selectively used according to transport aspects of the paper P which is printed by the print head  141 . 
     The drying unit  65  may be driven when the paper P is printed, regardless of the amount of attached ink per unit area of the paper P. 
     In a case where a distance between the drying unit  65  and the print head  141  in the specified direction X is long to a certain degree, a part of the drying unit  65  may be disposed below the nozzle forming surface  143 . 
     If the retracted position of the cap  70  is further separated from the drying unit  65  than the space forming position, the retracted position of the cap  70  can be set to an arbitrary position. For example, the retracted position of the cap  70  may be disposed such that the paper P does not pass through a region between the retracted position and the drying unit  65 . 
     The ink absorbing material  71  may not be provided in the cap  70 . Even in this case, the ink is retained in the cap  70  by attaching the ink in the inner wall of the cap  70  or by keeping the ink in a groove formed in a bottom wall thereof, and thereby it is possible to prevent the nozzle  142  from being dried, when the cap  70  forms the closed space  72 . 
     If a space forming member can retain liquid, the space forming member may have other configuration other than the cap  70 . For example, as illustrated in  FIG. 11 , a space forming member  70 A may have a plate shape. In this case, a seal member  145  having a ring shape may be provided in the print head  141  so as to surround the opening  142 A of the nozzle  142 . According to this configuration, the space forming member  70 A moves to the space forming position thereby coming into contact with the seal member  145 . Accordingly, it is possible to form the closed space  72  at which each nozzle  142  is opened. According to this configuration, it is also possible to retain liquid in a groove or a concave portion, for example, by forming the groove or the concave portion in an upper surface of the space forming member  70 A of a plate shape. 
     In each embodiment, cleaning which forcibly discharges ink from the print head  141  is performed by generating negative pressure in the closed space  72 . However, the cleaning is not limited to this, and may be performed by using other methods. For example, the cleaning which discharges the ink in the closed space  72  may be performed by driving a pressing pump which is provided on an upstream side of the nozzle  142 . Alternatively, in a case where a circulation flow path is provided in a supply path from the liquid container  61  to the print head  141 , cleaning which discharges liquid from the nozzle  142  may be performed by driving a pump for circulating the liquid through the circulation flow path. 
     In a case where the ink retained in the cap  70  evaporates, it is possible to supplement ink in the cap  70  by ejecting the ink into the cap  70  from the print head  141 . In the same manner, in a case where the wiping member  92  is dried, the wiping member  92  can be returned to a wet state by ejecting the ink. However, as the wiping member  92  comes into wet contact with the nozzle forming surface  143 , components contained in the ink which is solidified by drying can damage the nozzle forming surface  143 . At this time, solvent components of the evaporated ink are used for moisturizing of the nozzle  142  which is performed by the cap  70 , and thus, the ink which is used for printing is reduced, but the moisturizing can be performed. Accordingly, in the second embodiment, the retracted position of the wiping member  92  may be set to a farther position from the drying unit  65  than the retracted position of the cap  70 . 
     In the second embodiment, when the nozzle forming surface  143  of the print head  141  is wiped, the wiping device  90  may move in a direction along the nozzle forming surface  143  in a state where the wiping member  92  comes into contact with the nozzle forming surface  143 . In this case, the pressing member  93  which relatively moves with respect to the print head  141  and the wiping member  92  may not be provided. In addition, in this case, the wiping member  92  may be replaced by a sponge which can absorb liquid (impregnating liquid), a roller which is configured by a porous material whose outer peripheral surface can absorb the liquid (impregnating liquid), or the like. In addition, in this case, it may be configured that a storage unit which stores impregnating liquid in a base end portion of sponge is disposed, and a portion which comes into contact with the nozzle forming surface  143  can be modified by rotating a roller. 
     In the second embodiment, if the retracted position of the wiping member  92  is located at a position further separated from the drying unit  65  than the wiping position, the retracted position of the wiping member  92  may be set to an arbitrary position. For example, the retracted position of the wiping member  92  may be a position in which the paper P does not pass through a region between the retracted position and the drying unit  65 . 
     In the second embodiment, wiping of the nozzle forming surface  143  is performed by displacing the contact position of the wiping member  92  in the nozzle forming surface  143  from one side to another side in the specified direction X. However, the wiping of the nozzle forming surface  143  is not limited to this, and may be performed by displacing the contact position in a width direction of the paper. 
     In the second embodiment, if the retracted position of the absorbing member  80  is located at a closer position to the drying unit  65  than the contact position, the retracted position of the absorbing member  80  may be set to an arbitrary position. For example, the retracted position of the absorbing member  80  may be a position immediately above the drying unit  65 . 
     In the second embodiment, if the absorbing member  80  is provided, the absorbing member  80  may have a configuration in which at least one of the wiping device  90  and the cap  70  is not included. In addition, if the retracted position of the absorbing member is set to a position closer to the drying unit  65  than the contact position of the absorbing member, the retracted position of the wiping member may be set to a position closer to the drying unit  65  than the wiping position of the wiping member. In addition, if the retracted position of the absorbing member is set to a position closer to the drying unit  65  than the contact position of the absorbing member, the retracted position of the cap may be set to a position closer to the drying unit  65  than the space forming position of the cap. 
     In the second embodiment, if the wiping device  90  is provided, the wiping device  90  may have a configuration in which at least one of the absorbing member  80  and the cap  70  is not included. In addition, if the retracted position of the wiping member is set to a position further separated from the drying unit  65  than the wiping position of wiping member, the retracted position of the absorbing member may be set to a position further separated from the drying unit  65  than the contact position of the absorbing member. In addition, if the retracted position of the wiping member is set to a position further separated from the drying unit  65  than the wiping position of the wiping member, the retracted position of the cap may be set to a position closer to the drying unit  65  than the space forming position of the cap. 
     In the second embodiment, if the retracted position of the cap is set to a position further separated from the drying unit  65  than the space forming position of the cap, the retracted position of the absorbing member may be set to a position further separated from the drying unit  65  than the contact position of the absorbing member. In addition, if the retracted position of the cap is set to a position further separated from the drying unit  65  than the space forming position of the cap, the retracted position of the wiping member may be set to a position closer to the drying unit  65  than the wiping position of the wiping member. 
     The medium supporting unit is disposed at a position facing the nozzle forming surface  143  of the print head  141 , if the medium supporting unit has a configuration in which a medium such as the paper P which is transported along the transport path can be supported, the medium supporting unit may be a support unit which is arbitrarily configured not to include a charging belt. 
     The print unit  14  may be a head having a long ruler shape which extends in a width direction of the paper, as a print head of a line-head type, and may be configured to include multiple print heads. In addition, in a case where the print unit  14  is configured to include multiple print heads, a space forming member such as the cap  70  may be provided in each print head or each nozzle group which ejects the same liquid in each print head. 
     In addition, in a case where the print unit  14  is configured to include multiple print heads, the absorbing member  80  may be configured to include a large contact surface  801  which can come into contact with the nozzle forming surface of all the print heads. In addition, the absorbing member  80  may be provided in each print head or each nozzle group which ejects the same liquid in each print head. 
     In addition, in a case where the print unit  14  is configured to include multiple print heads, the wiping device  90  may be configured to include a large wiping member which can wipe the nozzle forming surface of all the print heads. In addition, in a case where multiple print heads or nozzle groups which eject the same liquid are lined up in a direction intersecting a wiping direction in which the wiping member wipes the nozzle forming surface, the wiping device  90  may be provided in each print head or each nozzle group which are lined up in the interesting direction. 
     The printer  11  may be employed in a device which ejects ink onto other media other than the paper P, such as a plastic film. 
     The liquid ejecting apparatus may eject or spray other liquid (liquid material in which particles of a functional material are dispersed or mixed, including a flow shape material such as gel) other than the ink. For example, the liquid ejecting apparatus may eject a liquid material including a dispersed or dissolved material, such as an electrode material or a color material (pixel material) which is used for manufacturing a liquid crystal display, an electroluminescence (EL) display, and a surface emitting display. In addition, the liquid ejecting apparatus may be a device which ejects biological organic material that is used for manufacturing a biochip, or a device which ejects liquid that is configured by a sample which is used as a precision pipette. Furthermore, the liquid ejecting apparatus may be a device which ejects lubricating oil into a precision apparatus such as a clock or a camera using a pin point, or a device which ejects a transparent resin liquid such as an ultraviolet curing resin onto a substrate so as to form a micro-hemispherical lands (optical lens) or the like which is used for an optical communication element or the like. In addition, the liquid ejecting apparatus may be a device which ejects etching liquid such as acid or alkali so as to etch the substrate or the like, or a device which ejects a flow shape material such as gel (for example, physical gel). 
     The entire disclosure of Japanese Patent Application No. 2015-128824, filed Jun. 26, 2015 is expressly incorporated by reference herein.