Abstract:
A transport apparatus includes: a transport roller unit that includes a drive transport roller and a driven transport roller to transport a transported medium to a downstream side of a transport direction; a driven roller holder that rotatably holds the driven transport roller; a support member that supports the driven roller holder and allows it to swing; a load applying resilient member that applies a load to the driven transport roller by being resiliently deformed in a direction along which the driven transport roller approaches the drive transport roller; and an engaging member that is provided separately from the support member to bear the load by engaging with the load applying resilient member.

Description:
BACKGROUND 
       [0001]    1. Technical Field 
         [0002]    The present invention relates to a transport apparatus that includes a transfer roller unit having a drive transport roller and a driven transport roller to transport a transported medium to a downstream side of a transport direction, a driven roller holder rotatably holding the driven transport roller, a support member supporting the driven roller holder and allowing it to swing, and a load applying resilient member applying a load to the driven transport roller by being resiliently deformed in a direction along which the driven transport roller approaches the drive transport roller, and a recording apparatus including the transport apparatus. 
         [0003]    The recording apparatus includes an inkjet printer, a wire dot printer, a laser printer, a line printer, a copying machine, a facsimile machine, and the like. 
         [0004]    2. Related Art 
         [0005]    Conventionally, as disclosed in JP-A-2008-074605, a transport apparatus provided in a recording apparatus includes a transport roller unit having a drive transport roller and a driven transport roller. The driven transport roller is rotatably held by a support frame as a driven roller holder. The support frame is supported by an attaching frame as a support member which allows it to swing. Moreover, the transport apparatus includes a coil spring as a load applying resilient member to urge the support frame in a direction along which the driven transport roller approaches the drive transport roller using the urging force of the coil spring. 
         [0006]    Specifically, one end arm of the coil spring comes in contact with a driven roller shaft on which the driven transport roller is mounted to urge the driven transport roller. Meanwhile, the opposite end arm of the coil spring engages with the attaching frame. That is, the attaching frame receives the opposite end arm of the resiliently deformed coil spring to urge the driven transport roller so that the driven transport roller can approach the drive transport roller on the side of the end arm of the coil spring. Therefore, a transport force can be applied to the paper held between the drive transport roller and the driven transport roller to transport the paper to a recording section on the downstream side of the transport direction. 
         [0007]    However, there is a need to make the shape of the recording apparatus thinner and the height of the attaching frame shorter. Here, since the attaching frame directly engages with the opposite end arm of the coil spring, a large force is applied to the attaching frame. Therefore, when the height of the attaching frame is made short, the attaching frame may be bent and deformed. 
         [0008]    Further, since the attaching frame as a support member holds the support frame as a driven roller holder, the relative position between the driven transport roller and the drive transport roller as well as the alignment of the driven transport roller may be unstable. As a result, the transport precision of the paper may be unstable. 
         [0009]    Although the attaching frame needs to be made thicker to prevent deformation, the weight of the attaching frame also increases as its thickness increases. 
       SUMMARY 
       [0010]    An advantage of some aspects of the invention is that it provides a transport apparatus that stabilizes transport precision regardless of the strength of a support member which supports a driven transport roller holder in spite of a limit on the size of the transport apparatus, and a recording apparatus including the same. 
         [0011]    According to a first aspect of the invention, there is provided a transport apparatus including: a transport roller unit that includes a drive transport roller and a driven transport roller to transport a transported medium to a downstream side of a transport direction; a driven roller holder that rotatably holds the driven transport roller; a support member that supports the driven roller holder while allowing it to swing; a load applying resilient member that applies a load to the driven transport roller by being resiliently deformed in a direction along which the driven transport roller approaches the drive transport roller; and an engaging member that is provided separately from the support member to bear the load by engaging with the load applying resilient member. 
         [0012]    According to the first aspect of the invention, the transport apparatus includes the support member and the engaging member. That is, the transport apparatus includes the engaging member provided separately from the support member. Therefore, the load of the load applying resilient member directly influences the engaging member, but does not directly influence the support member. As a result, the support member is prevented from being deformed by the load, and the support member can precisely determine the positions of the driven roller holder and the driven transport rollers. That is, the positions of the driven transport rollers can be stabilized. Therefore, the transport precision of the transported medium by the transport roller unit can be stabilized. 
         [0013]    Further, since the load is not directly applied to the support member, there is no need for the functional requirements for prevention of deformation thereof. As a result, the support member does not need to be made significantly thick and heavy. 
         [0014]    According to a second aspect of the invention, the support member of the first aspect is formed of a resin. 
         [0015]    According to the second aspect of the invention, the support member is formed of a resin in addition to having the same operation and effect as the first aspect of the invention. Therefore, the transport apparatus can be made light as compared with the case in which the support member is formed of a metal sheet. 
         [0016]    According to a third aspect of the invention, in the first or second aspect, the load applying resilient member has a plurality of torsion coil springs, and ends at one side of the torsion coil springs engage with the driven roller holder on a side close to the driven transport roller with respect to a swinging support, and the other ends thereof engage with the engaging member. 
         [0017]    According to the third aspect of the invention, the load applying resilient member has a plurality of torsion coil springs in addition to having the same operation and effect as the first and second aspects of the invention, and ends at one side of the torsion coil springs engage with the driven roller holder on a side close to the driven transport roller with respect to a swinging support, and the other ends thereof engage with the engaging member. 
         [0018]    When the plurality of torsion coil springs are used as in the aspect of the invention, the reaction to the operation of the driven transport rollers by the ends at one side of the torsion coil springs significantly influences the other ends thereof. In this case, the loads of the torsion coil springs are not directly applied to the support member, which is available. That is, the structure is available for a relatively large load. 
         [0019]    Further, the ends at one side of the torsion coil springs engage with the driven transport rollers. Here, the load indirectly applied to the swing point of the driven roller holder can be reduced by engaging the ends at one side of the torsion coil springs with the vicinity of the driven transport rollers. 
         [0020]    According to a fourth aspect of the invention, in any one of the first to third aspects, a convex portion is formed in at least one of the engaging member and the support member, and the engaging member and the support member make point-contact with each other at the convex portion. 
         [0021]    According to the fourth aspect of the invention, a convex portion is formed in at least one of the engaging member and the support member, and the engaging member and the support member make point-contact with each other at the convex portion in addition to having the same operation and effect as the first to third aspects of the invention. Therefore, the position of the engaging member relative to the support member can be determined. As a result, the load applied by the load applying resilient member can be stabilized. 
         [0022]    Further, an aperture may be provided between the support member and the engaging member by the point contact. As a result, the deflection of the engaging member rarely influences the support member. 
         [0023]    According to a fifth aspect of the invention, there is provided a recording apparatus including: a feeder that picks up a loaded recording medium and feeds the recording medium; a transporter that transports the fed recording medium to a downstream side of the transport direction; a recorder that performs a recording operation on the transported recording medium with a recording head. The transporter includes the transport apparatus according to any one of the first to fourth aspects. 
         [0024]    According to the fifth aspect of the invention, the transporter includes the transport apparatus according to anyone of claims  1  to  4 . Therefore, the recording apparatus can achieve the same operation and effect as the aspect of anyone of claims  1  to  4 . 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0025]    The invention will be described with reference to the accompanying drawings, wherein like numbers reference like elements. 
           [0026]      FIG. 1  is a perspective view illustrating the entire appearance of a printer related to the invention. 
           [0027]      FIG. 2  is a side sectional view of a paper transport path of a printer according to an embodiment of the invention. 
           [0028]      FIG. 3  is a rear perspective view illustrating a main frame and a rear frame of the printer according to the embodiment of the invention. 
           [0029]      FIG. 4  is an enlarged rear cross-sectional perspective view illustrating a transporter according to the embodiment of the invention. 
           [0030]      FIG. 5  is an enlarged side sectional view illustrating the transporter according to the embodiment of the invention. 
           [0031]      FIG. 6  is an enlarged side perspective view illustrating the transporter according to the embodiment of the invention. 
           [0032]      FIG. 7  is an enlarged front perspective view illustrating the vicinity of the transporter according to the embodiment of the invention. 
           [0033]      FIG. 8  is an exploded perspective view illustrating the transporter according to the embodiment of the invention. 
       
    
    
     DESCRIPTION OF EXEMPLARY EMBODIMENTS 
       [0034]    Hereinafter, an exemplary embodiment of the invention will be described in detail with reference to the accompanying drawings. 
         [0035]      FIG. 1  is a perspective view illustrating a printer as an image forming apparatus related to an embodiment of the present invention. 
         [0036]    As illustrated in  FIG. 1 , the printer  1  is a thin printer whose height in the Z direction is short. The printer  1  includes a rectangular box-shaped body  112 , and a carriage  40  is provided reciprocally in a central region of the body  112  along the main scanning direction by being guided by a carriage guide shaft  41  extending along the right and left X direction (the main scanning direction) of  FIG. 1 . 
         [0037]    As illustrated in  FIG. 1 , a long plate-like paper guide  39  is disposed opposite to the carriage  40  under the carriage  40  in parallel to the main scanning direction X in a central region of the body  112 . A paper supply cassette  11  is provided on the lower front side (the front side of  FIG. 1 ) of the printer  1  and is mounted (inserted) into a concave mount  112 A formed in the body  112  and the front side is opened so that it can be inserted into the mount  112 A. A plurality of ink cartridges  117  are loaded inside a cover  112 B covering the right front surface of the body  112 . 
         [0038]    The ink in the ink cartridges  117  is supplied to the carriage  40  through a plurality of ink supply tubes (not shown) installed in a flexible wire plate  118 , and ink droplets are ejected (discharged) from a recording head  42  (see  FIG. 2 ) provided under the carriage  40 . Pressure applying devices (piezoelectric devices, electrostatic devices, heat radiating devices, etc.) that apply pressure for ejecting the ink are installed in the nozzles of the recording head  42 , and ink droplets are ejected (discharged) from the corresponding nozzles when a voltage is applied to the pressure applying devices. 
         [0039]    A printing operation corresponding to one line is performed by ejecting ink droplets from the recording head  42  that is moving together with the carriage  40  in the main scanning direction with respect to the paper P supplied from the paper cassette  11  and located on the paper guide  39 . The printing operation on the paper P is performed by alternately and repeatedly performing scanning operations of the carriage  40  and transporting the paper P to the following row. Various handling switches  120  including a power switch are provided on the lower left side of the body  112 . 
         [0040]    Hereinafter, the entire structure of the printer  1  will be described with reference to  FIG. 2 . The printer  1  includes a feeding unit  2  at the bottom of the device to feed the recording paper P from the feeding unit  2  sheet by sheet, perform an inkjet recording operation using a recorder  4 , and discharge the recording paper P toward a paper discharge stacker (not shown) provided on the front side (the left side of  FIG. 2 ) of the device. 
         [0041]    The feeding unit  2  includes a paper cassette  11 , a pickup roller  16 , a guide roller  20 , and a separator  21 . The paper cassette  11  accommodating a plurality of sheets of stacked paper P can be mounted on and separated from the front side of the feeding unit  2  with respect to the body of feeding unit  2 , and the pickup roller  16 , which is driven and rotated by a paper feeding (PF) motor (not shown), is provided in a member  17  capable of being swung about a swing shaft  18  so that it comes in contact with the paper accommodated in the paper cassette  11  and rotates to withdraw the uppermost paper P from the paper cassette  11 . 
         [0042]    A separating member  12  is provided at a position opposite to the tip end of the paper P accommodated in the paper cassette  11 , and the tip end of the uppermost paper P that is to be fed by sliding comes in contact with the separating member  12  to the downstream side to perform a first step of separating the uppermost paper P from the remaining paper P. A freely rotatable guide roller  20  is provided on the downstream side of the separating member  12 , and the separator  21  including a separating roller  22  and a drive roller  23  to perform the second step of separating the paper P is additionally provided on the downstream side of the separating member  12 . 
         [0043]    A first middle feeder  25  including a drive roller  26  driven and rotated by the PF motor (not shown) and an assist roller  27  holding the paper P together with the drive roller  26  and driven and rotated by the drive roller  26  is provided on the downstream side of the separator  21 , and the paper P is fed further to the downstream side of the separator  21  by the first middle feeder  25 . The reference numeral  29  represents a driven roller that alleviates a paper passing load when the paper P (in particular, the rear end of the paper P) passes through a curved reversible path. 
         [0044]    A second middle feeder  31  including a drive roller  32  driven and rotated by the PF motor (not shown) and an assist roller  33  holding the paper P together with the drive roller  32  and driven and rotated by the drive roller  32  is provided on the downstream side of the driven roller  29 , and the paper P is fed further to the downstream side of the driven roller  29  by the second middle feeder  31 . 
         [0045]    A recorder  4  is disposed on the downstream side of the second middle feeder  31 . The recorder  4  includes a transporter  5 , a recording head  42 , a paper guide  39 , and a discharger  6 . The transporter  5  includes a drive transport roller  35  driven and rotated by the PF motor (not shown) and a driven transport roller  36  whose shaft is supported by a paper guide box  37  and which is pressed, driven and rotated by the drive transport roller  35 , and the paper P is precisely fed toward a position opposing the recording head  42  by the transporter  5 . 
         [0046]    The recording head  42  is provided at the bottom of the carriage  40  which is guided by a carriage guide shaft  41  extending in the main scanning direction (the direction perpendicular to the paper surface of  FIG. 2 ) and is reciprocally driven in the main scanning direction by a carriage (CR) motor (not shown). The paper guide  39  is provided at a position opposing the recording head  42 , and the distance between the paper P and the recording head  42  is defined by the paper guide  39 . 
         [0047]    The discharge unit  6  provided on the downstream side of the paper guide  39  includes a drive discharge roller  44  driven and rotated by the PF motor (not shown) and a driven discharge roller  45  driven and rotated while making contact with the drive discharge roller  44 , and the paper P on which a recording operation is performed by the recorder  4  is discharged to a stacker (not shown) provided on the front side of the device by the discharge unit  6 . 
         [0048]      FIG. 3  is a rear perspective view illustrating a main frame and a rear frame of the printer according to the embodiment of the invention.  FIG. 4  is an enlarged rear cross-sectional perspective view illustrating a transporter according to the embodiment of the invention.  FIG. 5  is an enlarged side sectional view illustrating the transporter according to the embodiment of the invention.  FIG. 6  is an enlarged side perspective view illustrating the transporter according to the embodiment of the invention.  FIG. 7  is an enlarged front perspective view illustrating the vicinity of the transporter according to the embodiment of the invention.  FIG. 8  is an exploded perspective view illustrating the transporter according to the embodiment of the invention. 
         [0049]    As illustrated in  FIGS. 3 to 8 , the transporter  5  of the printer  1  includes a main frame  50  and a rear frame  60 . The main frame  50  is integrally mounted on a body  58  of the printer  1 . The rear frame  60  is installed behind the main frame  50 . As will be described in detail later, the rear frame  60  comes in point-contact with the main frame  50  at a plurality of places. The rear frame  60  includes a first paper box guide  67  forming a portion of the paper guide box  37  on the upper side of the paper guide path. 
         [0050]    In the embodiment of the invention, the main frame  50  is formed of a resin such as plastic. On the other hand, the rear frame  60  is formed of a metal plate, i.e. a sheet metal. 
         [0051]    The transporter  5  includes a transport roller unit  70 , a driven roller holder  71 , a driven roller shaft  75 , first torsion coil springs  80 , second torsion coil springs  90 , a main frame  50 , and a rear frame  60 . The transport roller unit  70  includes a drive transport roller  35  driven by the power of a transport motor and driven transport rollers  36  driven and rotated by the drive transport roller  35 . The driven transport rollers  36  are mounted on a driven roller shaft  75  and are held to be rotatable by roller bearings  72  of the driven roller holder  71 . The driven transport rollers  36  are urged toward the drive transport roller  35  by the first torsion coil springs  80  and the second torsion coil springs  90 . 
         [0052]    In the embodiment of the invention, one drive roller holder  71  maintains three rotatable driven transport rollers  36 . A plurality of driven roller holders  71  are provided in the widthwise direction X of the recording paper P. Two first torsion coil springs  80  and two second torsion coil springs  90  are provided for one driven roller holder  71 . Hereinafter, one unit for one driven roller holder  71  will be described. 
         [0053]    The first torsion coil springs  80  include first coils  81 , first spring arms  82  urging the driven transport rollers  36 , and second spring arms  83  engaging with the rear frame  60 . 
         [0054]    Similarly, the second torsion coil springs  90  include second coils  91 , third spring arms  92  urging the driven transport rollers  36 , and fourth spring arms  93  engaging with the rear frame  60 . 
         [0055]    The first coils  81  of the first torsion coil springs  80  are maintained by first coil maintainers  53  formed in the main frame  50 . The first spring arms  82  urge the driven transport rollers  36  through the driven roller shaft  75  by making contact with the driven roller shaft  75  (see  FIG. 7 ). The second spring arms  83  engage with spring arm engagers  66  formed in the rear frame  60 . 
         [0056]    Here, since an urging force is applied to the first spring arms  82 , an urging force is applied to the second spring arms  83  engaging with the spring arm engagers  66 . Since an urging force is applied to the first spring arms  82  in the counterclockwise direction about the first coils  81  in  FIG. 5 , an urging force is applied to the second spring arms  83  in the clockwise direction. 
         [0057]    In addition, since the first spring arms  82  come in contact with the driven roller shaft  75  to urge the driven roller shaft  75  in the embodiment of the invention, almost none of the forces of the first torsion coil springs  80  are applied to holder shafts  73  and holder shaft receivers  51 . 
         [0058]    Meanwhile, the second coils  91  of the second torsion coil springs  90  are maintained by the second coil maintainers  63  formed in the rear frame  60 . The third spring arms  92  urge the driven transport rollers  36  through the driven roller holder  71  by making contact with the driven roller holder  71  (see  FIG. 7 ). The fourth spring arms  93  engage with the spring arm engagers  66  of the rear frame  60 . 
         [0059]    Here, an urging force is applied to the third spring arms  92  and an urging force is applied to the fourth spring arms  93  engaging with the spring arm engagers  66 . That is, since an urging force is applied to the third spring arms  92  in the clockwise direction about the second coils  91 , an urging force is applied to the fourth spring arms  93  in the reverse direction. 
         [0060]    Since the second spring arms  92  urge the driven roller shaft  75  by making contact with the vicinity of the driven roller shaft  75 , almost none of the forces of the second torsion coil springs  90  are applied to the holder shaft  73  and the holder shaft receivers  51 . 
         [0061]    A second paper box guide  74  guiding the upper side of the paper P is formed on the bottom surface of the driven roller holder  71 . That is, the above-described paper guide box  37  includes a first paper box guide  67  of the rear frame  60  and a second paper box guide  74  (see  FIG. 5 ) of the driven roller holder  71 . 
         [0062]    Moreover, a pair of holder shafts  73  (see  FIGS. 6 and 8 ) are formed in the driven roller holder  71 . The holder shafts  73  are maintained to be rotatable by a pair of holder shaft receivers  51  formed in the main frame  50  in a J-shape. Therefore, the driven roller holder  71  can be swung about the holder shafts  73 . 
         [0063]    Specifically, when thick paper is transported, the driven roller holder  71  is swung in the clockwise direction in  FIG. 5  about the holder shafts  73  against the urging forces of the first torsion coil springs  80  and the second torsion coil springs  90  together with the driven transport rollers  36 . 
         [0064]    That is, the locations of the driven roller holder  71  and the driven transport roller  36  are determined by the main frame  50 . The loads (urging forces) of the first torsion coil springs  80  and the second torsion coil springs  90  are received by the main frame  50  and the separate rear frame  60 . 
         [0065]    Withdrawal preventers  61  (see  FIG. 6 ) are provided in the rear frame  60 . The withdrawal preventers  61  prevent the holder shafts  73  from being withdrawn from the holder shaft receivers  51  in the J-shaped release sides of the holder shaft receivers  51 . 
         [0066]    The rear frame  60  is mounted on the main frame  50  by screws  59 . 
         [0067]    Specifically, a plurality of screw insert holes  52  are provided in the main frame  50 . A plurality of female screw holes  62  are provided in the rear frame  60  at positions opposing the plurality of screw insert holes  52 . A plurality of screws  59  are inserted into the screw insert holes  52  from the main frame  50  and are screw-coupled to the screw holes  62 . 
         [0068]    Cuts are formed in the vicinity of the screw insert holes  52  of the main frame  50  to resiliently deform the vicinity of the screw insert holes  52 . That is, the vicinity of the screw insert holes  52  of the main frame  50  is cushioned. 
         [0069]    Here, the first convex portions  64  and second convex portions  65  are provided in the rear frame  60  (see  FIG. 8 ). Meanwhile, engaging holes  54  are provided in the main frame  50 . The first convex portions  64  engage with the engaging holes  54 . The locations of the main frame  50  and the rear frame  60  in the X and Z directions can be relatively determined by the engagement. 
         [0070]    The plurality of second convex portions  65  comes in point-contact with the main frames  50  at a plurality of positions (see  FIG. 5 ). 
         [0071]    Here, as described above, the rear frame  60  can be introduced into the main frame  50  by the resilient deformation due to the cuts in the vicinity of the screw insert holes  52 , making contact with the second convex portions  65  only at points. 
         [0072]    It is apparent that the second convex portions  65  may be provided in the main frame  50 . 
         [0073]    Therefore, the relative positions of the main frame  50  and the rear frame  60  in the Y direction can be determined. 
         [0074]    Further, using the points of contact, the deflection of the rear frame  60  by the forces from the second spring arms  83  and the fourth spring arms  93  does not influence the main frame  50 . 
         [0075]    As a result, the X, Y, and Z directional positions and alignments of the driven roller holder  71  and the driven transport roller  36  determined by the main frame  70  can be stabilized. 
         [0076]    As described above, the positions of the driven roller holder  71  and the driven transport rollers  36  are determined by the main frame  50 . The spring loads (urging forces) of the first torsion coil springs  80  and the second torsion coil springs  90  are received by the rear frame  60  separately from the main frame  50 . In other words, the main frame  50  and the rear frame  60  are provided separately from each other to share with each other the function of determining positions and the function of receiving loads. 
         [0077]    The positions of the driven transport roller  36  with respect to the drive transport roller  35  may be precisely determined by the structure. Therefore, the transport precision of the paper can be stabilized. The separate provision of the main frame  50  and the rear frame  60  is particularly effective for a layout of the printer  1  made thin in the Z direction by providing the main frame  50  to be long in the Z direction. 
         [0078]    Here, the main frame  50  does not directly bear the urging forces of the first torsion coil springs  80  and the second torsion coil springs  90 . Therefore, the main frame  50  may be formed of a resin such as plastic instead of a metal sheet. In this case, the weight of the main frame  50  may be decreased as compared with the case of a metal sheet. 
         [0079]    Although the first coil springs  80  and the first coils  81  are maintained by the first coil maintainers  53  of the main frame  50  in the embodiment of the invention, they may be maintained by the rear frame  60  as in the second coils  91  of the second torsion coil springs  90 . In this case, the urging forces of the first torsion coil springs  80  and the second torsion coil springs  90  indirectly applied to the main frame  50  can be reduced further. 
         [0080]    As described above, the paper guide box  37  includes a first paper box guide  67  of the rear frame  60  and the second paper box guide  74  (see  FIG. 5 ) of the driven roller holder  71 . Here, only the second paper box guide  74  of the paper guide box  37  is swung about the holder shafts  73 . Therefore, as compared with the case in which the paper guide boxes of the first paper box guide and the second paper box guide are integrally swung, the displacement of the member in the Z direction can be reduced. As a result, the printer  1  can be made thinner in the Z direction. Therefore, this structure is especially effective for a printer  1  that is made thin in the Z direction. 
         [0081]    Moreover, the screws  59  are fixed and the second convex portions  65  make points of contact at widthwise positions where the first torsion coil springs  80  and the second torsion coil springs  90  are not provided. Therefore, the deflection of the rear frame  60  rarely influences the main frame  50 . 
         [0082]    The transporter  5  which is a transport apparatus according to the embodiment of the invention includes a transport roller unit  70  having a drive transport roller  35  and driven transport rollers  36  to feed recording paper P as an example of a transported medium to a downstream side in the transport direction, and a driven roller holder  71  maintaining the driven transport rollers  36  to be rotatable, a main frame  50  as a support member supporting the driven roller holder  71  while allowing it to swing, first torsion coil springs  80  and second torsion coil springs  90  that are examples of a load applying resilient member for applying a load to the driven transport rollers  36  by resilient deformation in a direction along which the driven transport roller  36  approaches the drive transport roller  35 , and a rear frame  60  provided separately from the main frame  50  to bear the load by engaging with the first torsion coil springs  80  and the second torsion coil springs  90 . 
         [0083]    In the embodiment of the invention, the main frame  50  is formed of a resin. 
         [0084]    Moreover, in the embodiment of the invention, the load applying resilient member has a plurality of first torsion coil springs  80  and a plurality of second torsion coil springs  90 . The first spring arms  82  and the third spring arms  92 , i.e. the ends at one side of the first torsion coil springs  80  and the second torsion coil springs  90 , engage with the driven transport rollers  36  about the holder shafts  73 , i.e. the swing point of the driven roller holder  71 , and the second spring arms  83  and the fourth spring arms  93 , i.e. the other ends thereof engage with the rear frame  60 . 
         [0085]    In the embodiment of the invention, second convex portions  65  are formed in at least one of the rear frame  60  and the main frame  50  and the rear frame  60  and the main frame  50  make points of contact with each other at the second convex portions  65 . 
         [0086]    The printer  1 , i.e. the recording apparatus according to the embodiment of the invention includes a feeder  2  that picks up and feeds recording paper P as a feeder, i.e. an example of a loaded recorded medium, a transporter  5  that transports the fed recording paper P to a downstream side of the transport direction, and a recorder  4  that performs a recording operation as a recorder on the transported recording paper P by the recording head  42 . 
         [0087]    Although an exemplary embodiment of the invention has been described with reference to the accompanying drawings, it should be understood that the invention is not limited to such embodiments. Various shapes or combinations of the respective constituent elements illustrated in the above-described embodiments are merely examples, and various changes may be made depending on design requirements or the like without departing from the spirit or scope of the invention.