Patent Publication Number: US-11040557-B2

Title: Cutting head-including printer

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims the benefit of priority to Japanese Patent Application No. 2018-225396 filed on Nov. 30, 2018. The entire contents of this application are hereby incorporated herein by reference. 
     BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The present invention relates to a printer including a cutting head (hereinafter, referred to as a “cutting head-including printer”). 
     Description of the Related Art 
     Conventionally, a cutting head-including printer that prints an image on a recording medium and cuts the recording medium is known. Many cutting head-including printers each include driving rollers and pinch rollers moving the recording medium during printing and cutting. The driving rollers rotate to transport the recording medium, and are generally embedded in a platen. The pinch rollers are provided to face the driving rollers and hold the recording medium together with the driving rollers to press the recording medium. When it is attempted to cut the recording medium by such a cutting head-including printer after the printing, an inconvenience may occur that the pinch rollers contact the printed image and as a result, for example, damages the image. In such a situation, Japanese Patent No. 4855510 discloses a cutting head-including printer including side pinch rollers pressing both of two ends of the recording medium and a center pinch roller pressing a central portion of the recording medium. During the cutting, the side pinch rollers are caused to contact the recording medium while the center pinch roller is prevented from contacting the recording medium. 
     As described above, many cutting head-including printers perform the printing first and then perform the cutting. However, a cutting head-including printer capable of performing the cutting first is also known. For example, Japanese Laid-Open Patent Publication No. 2013-159079 discloses a cutting head-including printer performing the cutting before the printing. The cutting head-including printer described in Japanese Laid-Open Patent Publication No. 2013-159079 has one object of shortening the wait time in which the printer waits for ink to be dried. The cutting head-including printer described in Japanese Laid-Open Patent Publication No. 2013-159079 performs the printing after the cutting, and therefore, does not need to wait for the ink to be dried. As can be seen, there is a need for a cutting head-including printer that performs the cutting before the printing. 
     In the case where the cutting is performed before the printing by a cutting head-including printer as disclosed in Japanese Laid-Open Patent Publication No. 2013-159079, there is an undesirable possibility that if the center pinch roller is separated from the recording medium as disclosed in Japanese Patent No. 4855510, the movement of the recording medium becomes unstable during the cutting and thus the cutting quality is deteriorated. 
     SUMMARY OF THE INVENTION 
     Preferred embodiments of the present invention provide cutting head-including printers improving the cutting quality in the case where the cutting is performed before the printing. 
     A cutting head-including printer disclosed herein includes a supporting table including a carrying surface on which a recording medium is to be placed; a transportation mechanism that transports the recording medium placed on the carrying surface in a first transportation direction and a second transportation direction opposite to the first transportation direction; a printing head provided to face the carrying surface; a cutting head provided to face the carrying surface; and a controller. The transportation mechanism includes a pair of side pinch rollers, a center pinch roller, at least one driving roller, a driving mechanism, and a roller moving mechanism. The pair of side pinch rollers are provided to face both of two ends of the carrying surface in a direction perpendicular to the first transportation direction. The center pinch roller is provided between the pair of side pinch rollers and faces the carrying surface. The at least one driving roller is provided on the supporting table to face the side pinch rollers and the center pinch roller and has at least a portion thereof exposed to the carrying surface. The driving mechanism rotates the at least one driving roller in the first transportation direction and the second transportation direction. The roller moving mechanism causes the center pinch roller to approach or, to be separated from, the at least one driving roller. The side pinch rollers hold the recording medium placed on the carrying surface together with the at least one driving roller. The roller moving mechanism moves the center pinch roller to a first position at which the center pinch roller holds the recording medium placed on the carrying surface together with the at least one driving roller and to a second position at which the center pinch roller is separated from the at least one driving roller. The controller includes a data storage, a mode setter, and a roller position controller. The data storage stores working data including at least one of printing data and cutting data. The mode setter sets a working mode in which printing and cutting are executed to a first working mode or to a second working mode. The first working mode is a working mode in which the printing is first executed and then the cutting is executed. The second working mode is a working mode in which the cutting is first executed and then the printing is executed. The roller position controller controls the roller moving mechanism to, in the case where the working mode is set to the first working mode, locate the center pinch roller at the second position during the cutting and to, in the case where the working mode is set to the second working mode, locate the center pinch roller at the first position during the cutting. 
     According to the above-described cutting head-including printer, in the second working mode, in which the cutting is performed before the printing, during the cutting, the center pinch roller is located at the first position. At the first position, the center pinch roller is in contact with the recording medium, and presses the recording medium together with the side pinch rollers. This stabilizes the movement of the recording medium during the cutting. Therefore, the cutting head-including printer improves the cutting quality in the second working mode. 
     The above and other elements, features, steps, characteristics and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments with reference to the attached drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a front view of a cutting head-including printer according to a preferred embodiment of the present invention. 
         FIG. 2A  is a front view of an inkjet head and a cutting head. 
         FIG. 2B  is a front view of the inkjet head and the cutting head. 
         FIG. 3  is a block diagram of a control system of the cutting head-including printer according to a preferred embodiment of the present invention. 
         FIG. 4  is a perspective view of a portion of the cutting head-including printer according to a preferred embodiment of the present invention. 
         FIG. 5  is a perspective view showing a structure of a platen and the vicinity thereof according to a preferred embodiment of the present invention. 
         FIG. 6  is a perspective view of a side pinch roller unit according to a preferred embodiment of the present invention. 
         FIG. 7  is a perspective view of a center pinch roller unit according to a preferred embodiment of the present invention. 
         FIG. 8  is a side view of the center pinch roller unit according to a preferred embodiment of the present invention. 
         FIG. 9  is a front view of the center pinch roller unit according to a preferred embodiment of the present invention. 
         FIG. 10  is a perspective view of a center pinch roller moving mechanism and a rotator according to a preferred embodiment of the present invention. 
         FIG. 11  is a front view of a portion of the cutting head-including printer according to a preferred embodiment of the present invention. 
         FIG. 12  is a front view showing a structure of the center pinch roller unit and the vicinity thereof according to a preferred embodiment of the present invention. 
         FIG. 13  is a partially cut cross-sectional view showing a structure of the center pinch roller unit and the vicinity thereof according to a preferred embodiment of the present invention. 
         FIG. 14  is a partially cut cross-sectional view showing a structure of the center pinch roller unit and the vicinity thereof according to a preferred embodiment of the present invention. 
         FIG. 15  is a partially cut cross-sectional view showing a structure of the center pinch roller unit and the vicinity thereof according to a preferred embodiment of the present invention. 
         FIG. 16  is a block diagram of a control system of a cutting head-including printer according to a modification of a preferred embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Hereinafter, preferred embodiments of a cutting head-including printer (hereinafter, referred to as a “printer  100 ”) according to the present invention will be described with reference to the drawings. The preferred embodiments described herein are not intended to specifically limit the present invention, needless to say. Components and portions that have the same functions will bear the same reference signs, and overlapping descriptions will be omitted or simplified. As shown in  FIG. 1 , the printer  100  according to a preferred embodiment is a printer/cutter capable of performing printing on, and cutting, a recording medium  5 . 
     In the following description, the terms “left”, “right”, “up” and “down” respectively refer to left, right, up and down as seen from an operator who faces a front surface of the printer  100 . A direction separated away from the printer  100  toward the operator is referred to as “forward”, and a direction approaching the printer  100  away from the operator is referred to as “rearward”. In the drawings, letters F, Rr, L, R, U and D respectively represent front, rear, left, right, up and down. In the drawings, letter X represents a transportation direction in which the recording medium  5  is transported. In this preferred embodiment, the transportation direction X is a front-rear direction. In the drawings, letter Y represents a scanning direction. The scanning direction Y is a direction perpendicularly crossing the transportation direction X. In this preferred embodiment, the scanning direction Y is a left-right direction. The above-described directions are merely defined for the sake of convenience, and are not to be construed in a limited manner. 
     The recording medium  5  is, for example, a recording paper sheet. The recording medium  5  is not limited to a recording paper sheet. The recording medium  5  may be, for example, a sheet formed of a resin material such as PVC, polyester or the like, a sealing member including a mount paper board and a release paper sheet that is stacked on the mount paper board and is coated with a pressure-sensitive adhesive, a metal plate formed of aluminum, iron or the like, a glass plate, a wooden plate, or the like. In this specification, the terms “cut” and “cutting” refer to cutting the recording medium  5  in the entirety of the thickness direction thereof (e.g., cutting both of the mount paper board and the release paper sheet of the sealing member) and cutting the recording medium  5  in a portion of the thickness direction thereof (e.g., cutting only the releasing paper sheet without cutting the mount paper board). 
     As shown in  FIG. 1 , the printer  100  includes a main body  100   a , legs  11 , an operation panel  12 , a platen  16  on which the recording medium  5  is to be placed, an inkjet head  20 , a cutting head  30 , a head moving mechanism  40 , a transportation device  55 , and a controller  50 . The main body  100   a  includes a casing extending in the scanning direction Y. The legs  11  support the main body  100   a , and are provided on a bottom surface of the main body  100   a . The operation panel  12  is provided on, for example, a front surface of a right portion of the main body  100   a . There is no specific limitation on the position of the operation panel  12 . The operation panel  12 , for example, allows the operator to make an operation regarding the printing or the cutting. Although not shown, the operation panel  12  includes a display that displays information on the printing, for example, the resolution, the darkness of the ink and the like, the status of the printer  100  during the printing or the cutting, and the like, and also includes an input portion into which information on the printing or the cutting is to be input. 
     The platen  16  is a supporting table that supports the recording medium  5  while the printing is being performed on the recording medium  5  and while the recording medium  5  is being cut. The platen  16  includes a carrying surface  16   a  (see  FIG. 2A ), on which the recording medium  5  is to be placed. In this preferred embodiment, the carrying surface  16   a  is a top surface of the platen  16 . The printing on the recording medium  5  and the cutting of the recording medium  5  are performed on the platen  16 . The platen  16  extends in the scanning direction Y. A guide rail  15  extending in the scanning direction Y is located above the platen  16 . 
     The inkjet head  20  performs the printing on the recording medium  5  placed on the platen  16 . The inkjet head  20  is provided to face the carrying surface  16   a  of the platen  16 . The inkjet head  20  is movable in the scanning direction Y. As shown in  FIG. 2A , the inkjet head  20  includes a carriage  21  and a plurality of recording heads  22  each including a plurality of nozzles (not shown) discharging ink. In this preferred embodiment, five recording heads  22  are supported by the carriage  21 . The five recording heads  22  respectively discharge different colors of ink, for example, yellow ink, magenta ink, cyan ink, black ink and white ink. The number of the recording heads  22  is not limited to five. There is no specific limitation on the colors of the ink to be discharged by the recording heads  22 . The carriage  21  is supported by the guide rail  15 . The carriage  21  is engaged with the guide rail  15  so as to be movable in the scanning direction Y. 
     The cutting head  30  cuts the recording medium  5  placed on the platen  16 . The cutting head  30  is provided to face the carrying surface  16   a  of the platen  16 . The cutting head  30  is movable in the scanning direction Y. As shown in  FIG. 2A , the cutting head  30  includes a carriage  31 , a solenoid  32 , and a cutter  33 . The cutter  33  is attached to the carriage  31  with the solenoid  32  being located between the cutter  33  and the carriage  31 . The solenoid  32  is controlled by the controller  50  (see  FIG. 1 ). When the solenoid  32  is turned on or off, the cutter  33  moves in an up-down direction to contact the recording medium  5  or to be separated away from the recording medium  5 . The carriage  31  is supported by the guide rail  15 . The carriage  31  is engaged with the guide rail  15  so as to be movable in the scanning direction Y. 
     The head moving mechanism  40  moves the carriage  21  of the inkjet head  20  and the carriage  31  of the cutting head  30  in the scanning direction Y with respect to the recording medium  5  placed on the platen  16 . The head moving mechanism  40  moves the carriage  21  and the carriage  31  in the scanning direction Y. There is no specific limitation on the structure of the head moving mechanism  40 . In this preferred embodiment, as shown in  FIG. 1 , the head moving mechanism  40  includes a pulley  41 , a pulley  42 , an endless belt  43 , and a carriage motor  44 . The pulley  41  is provided at a left end of the guide rail  15 . The pulley  42  is provided at a right end of the guide rail  15 . The belt  43  is wound along the pulley  41  and the pulley  42 . The belt  43  is secured to a top portion of a rear surface of the carriage  31  (see  FIG. 2A ). The carriage motor  44  is connected with the right pulley  42 . Alternatively, the carriage motor  44  may be connected with the left pulley  41 . In this preferred embodiment, the carriage motor  44  is driven to rotate the pulley  42 , and as a result, the belt  43  runs between the pulley  41  and the pulley  42 . This causes the carriage  31  to move in the scanning direction Y. The carriage motor  44  is controlled by the controller  50 . 
     As shown in  FIG. 2A , a coupling member  24  made of a magnet is provided at a left end of the carriage  21 . A coupling member  34  made of a magnet is secured to a right end of the carriage  31 . The coupling member  24  is detachably coupled with the coupling member  34  of the cutting head  30 . In this preferred embodiment, the coupling member  24  and the coupling member  34  are coupled with each other by use of a magnetic force. The coupling member  24  and the coupling member  34  are not limited to being coupled with each other by use of a magnetic force, and may have any other structure. For example, the coupling member  24  and the coupling member  34  may be engageable members. An L-shaped bracket  25  is provided at a right end of the carriage  21 . 
     As shown in  FIG. 2A , a left side frame  7 L and a right side frame  7 R are respectively located to the left and to the right of the platen  16 . The guide rail  15  is supported by the left side frame  7 L and the right side frame  7 R. A lock device  35  locking the inkjet head  20  at a wait position is provided on the right side frame  7 R. The lock device  35  includes a bracket  36 , which may be hooked on the bracket  25 , and a locking solenoid  37  (see  FIG. 3 ) moving the bracket  36  between a lock position (see  FIG. 2B ) and a non-lock position (see  FIG. 2A ). The locking solenoid  37  is controlled by the controller  50 . 
     As shown in  FIG. 2A , when the inkjet head  20  is to perform the printing, the bracket  36  is set at the non-lock position. When the carriage  31  of the cutting head  30  moves rightward and thus the coupling member  34  and the coupling member  24  contact each other, the carriage  31  and the carriage  21  are coupled with each other. As a result, the inkjet head  20  is movable in the left-right direction together with the cutting head  30 . By contrast, when the cutting head  30  is to cut the recording medium  5 , as shown in  FIG. 2B , the inkjet head  20  is set at the wait position, and the bracket  36  of the lock device  35  is set at the lock position. This inhibits the inkjet head  20  from moving. When the carriage  31  moves leftward, the coupling member  34  and the coupling member  24  are separated from each other, and thus the carriage  31  and the carriage  21  are disengaged from each other. As a result, the cutting head  30  is made movable in the left-right direction while the inkjet head  20  waits at the wait position. 
     The transportation device  55  moves the recording medium  5  placed on the carrying surface  16   a  of the platen  16  in the transportation direction X. In this preferred embodiment, the transportation device  55  transports the recording medium  5  forward and rearward. Hereinafter, the forward direction of the transportation direction X will be referred to also as a “first transportation direction X 1 ”. The rearward direction of the transportation direction X will be referred to also as a “second transportation direction X 2 ”. The second transportation direction X 2  is opposite to the first transportation direction X 1 . The transportation device  55  is provided to the rear of (on the second transportation direction X 2  side with respect to) the inkjet head  20  and the cutting head  30 . As shown in  FIG. 4 , the transportation device  55  includes grit rollers  57 , a feed motor  58  (see  FIG. 3 ), side pinch roller units  60 , center pinch roller units  70 , a first holding shaft  80 , a rotator  81 , and a center pinch roller moving mechanism  85 . 
     As shown in  FIG. 4 , the grit rollers  57  are provided in the platen  16 . The grit rollers  57  are each embedded in the platen  16  such that a top portion thereof is exposed to the carrying surface  16   a . In this preferred embodiment, the printer  100  includes eight grit rollers  57 , for example. The number of the grit rollers  57  is not limited to eight. The grit rollers  57  are arrayed in the scanning direction Y. As shown in  FIG. 5 , some of the grit rollers  57  are located below side pinch rollers  62  described below. Such grit rollers  57  located below the side pinch rollers  62  hold the recording medium  5  such that the recording medium  5  is between such grit rollers  57  and the side pinch rollers  62 . The other grit rollers  57  are located below center pinch rollers  72  described below. Such grit rollers  57  located below the center pinch rollers  72  hold the recording medium  5  such that the recording medium  5  is between such grit rollers  57  and the center pinch rollers  72 . The feed motor  58  (see  FIG. 3 ) is connected with the grit rollers  57 . The feed motor  58  rotates the plurality of grit rollers  57  in the first transpiration direction X 1  or the second transpiration direction X 2  and thus transports the recording medium  5  in the transpiration direction X. The feed motor  58  is controlled by the controller  50 . When the feed motor  58  is driven to rotate the grit rollers  57  in the state in which the recording medium  5  is held between the grit rollers  57  and the side pinch rollers  62  and between the grit rollers  57  and the center pinch rollers  72 , the recording medium  5  is transferred in the transportation direction X. 
     As shown in  FIG. 6 , the side pinch roller units  60  each include the side pinch roller  62  and a first holding member  64 . The side pinch roller units  60  are located above the carrying surface  16   a  of the platen  16  (see  FIG. 5 ). In this preferred embodiment, the printer  100  includes two side pinch roller units  60 , for example. The side pinch roller units  60  are arrayed in the scanning direction Y. The pair of side pinch rollers  62  are respectively provided to face both of the two ends, in the scanning direction Y, of the carrying surface  16   a . The side pinch roller  62  of each of the side pinch roller units  60  presses a corresponding end, in the scanning direction Y, of the recording medium  5  from above. As shown in  FIG. 5 , the side pinch rollers  62  are each located above the corresponding grit roller  57  so as to face the grit roller  57  in the up-down direction. The side pinch rollers  62  are made of, for example, rubber. The first holding member  64  of each side pinch roller unit  60  supports the side pinch roller  62  such that the side pinch roller  62  is rotatable. The first holding member  64  supports the side pinch roller  62  such that the side pinch roller  62  is movable in the up-down direction. 
     As shown in  FIG. 6 , the first holding member  64  includes a main body  65 , an arm  66 , a first shaft  67 A, a second shaft  67 B, and twisted coil springs  68 . The main body  65  includes a recessed portion  65 A, which is generally U-shaped as seen in a side view. A first holding shaft  80  (see  FIG. 4 ) described below is fit into the recessed portion  65 A. The main body  65  includes the first shaft  67 A supporting the arm  66  such that the arm  66  is rotatable. The main body  65  includes openings  65 B extending in the up-down direction. 
     As shown in  FIG. 6 , a first protrusion  66 A protruding rightward is provided on a right side surface  66 R of the arm  66 . The first protrusion  66 A is inserted into one of the openings  65 B. A second protrusion  66 B protruding leftward is provided on a left side surface  66 L of the arm  66 . The second protrusion  66 B is inserted into the other opening  65 B. The first protrusion  66 A and the second protrusion  66 B are movable in the up-down direction in the openings  65 B. Therefore, the side pinch roller  62  is movable in the up-down direction in accordance with the thickness of the recording medium  5 . The arm  66  includes an opening  66 H, in which the side pinch roller  62  is accommodated. The second shaft  67 B, supporting the side pinch roller  62  such that the side pinch roller  62  is rotatable, is provided in the arm  66  so as to extend through the opening  66 H. 
     As shown in  FIG. 6 , the twisted coil springs  68  are wound around the first shaft  67 A. The twisted coil springs  68  are locked on the arm  66 . The twisted coil springs  68  urge the arm  66  downward. In this preferred embodiment, there are two twisted coil springs  68 , for example. The number of the twisted coil springs  68  is not limited to two. 
     As shown in  FIG. 7 , the center pinch roller units  70  each include the center pinch roller  72  and a second holding member  74 . The center pinch roller units  70  are located above the platen  16  (see  FIG. 1 ). The center pinch roller units  70  are provided between the pair of side pinch roller units  60 , and face the carrying surface  16   a  of the platen  16 . In this preferred embodiment, the printer  100  includes six center pinch roller units  70 , for example. The number of the center pinch roller units  70  is not limited to six. The center pinch roller units  70  are arrayed in the scanning direction Y. The center pinch rollers  72  each press the recording medium  5  from above. As shown in  FIG. 5 , the center pinch roller  72  of each center pinch roller unit  70  is located above the corresponding grit roller  57  so as to face the grit roller  57  in the up-down direction. The center pinch rollers  72  are made of, for example, rubber. The second holding member  74  of each center pinch roller unit  70  supports the center pinch roller  72  such that the center pinch roller  72  is rotatable. The second holding member  74  supports the center pinch roller  72  such that the center pinch roller  72  is movable in the up-down direction. 
     As shown in  FIG. 7 , the second holding member  74  includes a main body  75 , an arm  76 , a first shaft  77 A, a second shaft  77 B, and a twisted coil spring  78 . As shown in  FIG. 7 , the main body  75  includes a recessed portion  75 A, which is generally U-shaped as seen in a side view. The first holding shaft  80  (see  FIG. 4 ) described below is fit into the recessed portion  75 A. The main body  75  includes the first shaft  77 A supporting the arm  76  such that the arm  76  is rotatable. The main body  75  includes openings  75 B extending in the up-down direction. 
     As shown in  FIG. 7 , a first protrusion  76 A protruding rightward is provided on a right side surface  76 R of the arm  76 . The first protrusion  76 A is inserted into one of the openings  75 B. A second protrusion  76 B protruding leftward is provided on a left side surface  76 L of the arm  76 . The second protrusion  76 B is inserted into the other opening  75 B. The first protrusion  76 A and the second protrusion  76 B are movable in the up-down direction in the openings  75 B. Therefore, the center pinch roller  72  is movable in the up-down direction in accordance with the thickness of the recording medium  5 . The arm  76  includes an opening  76 H, in which the center pinch roller  72  is accommodated. The second shaft  77 B, supporting the center pinch roller  72  such that the center pinch roller  72  is rotatable, is provided in the arm  76  so as to extend through the opening  76 H. 
     As shown in  FIG. 8 , the second holding member  74  includes a stopping member  79  provided on the arm  76 . The stopping member  79  is allowed to contact an eccentric cam  88  (see  FIG. 4 ) described below. The stopping member  79  is located to the rear of the center pinch roller  72 . The stopping member  79  extends obliquely upward toward the center pinch roller  72 . The stopping member  79  includes a first portion  79 A extending obliquely in a rearward and upward direction from a rear end of the arm  76 , and a second portion  79 B extending obliquely in a forward and upward direction from a top end of the first portion  79 A. As shown in  FIG. 9 , a left end  79 L of the stopping member  79  is located to the right of a left end  72 L of the center pinch roller  72  as seen in a front view. A right end  79 R of the stopping member  79  is located to the left of a right end  72 R of the center pinch roller  72  as seen in a front view. In this preferred embodiment, a center  79 C of the stopping member  79  in the scanning direction Y and a center  72 C of the center pinch roller  72  in the scanning direction Y match each other. The stopping member  79  is made of, for example, zinc by die-casting. 
     As shown in  FIG. 9 , the twisted coil spring  78  is wound around the first shaft  77 A. The twisted coil spring  78  is located to the left of the stopping member  79 . Alternatively, the twisted coil spring  78  may be located to the right of the stopping member  79 . The twisted coil spring  78  is locked on the arm  76 . The twisted coil spring  78  urges the arm  76  downward. The twisted coil spring  78  has a stress smaller than a stress of each of the twisted coil springs  68  used in the side pinch roller units  60 . In this preferred embodiment, there is one twisted coil spring  78 . There may be any other number of twisted coil springs  78 . 
     As shown in  FIG. 10 , the first holding shaft  80  extends in the scanning direction Y. As shown in  FIG. 11 , the first holding shaft  80  is located below the guide rail  15 . As shown in  FIG. 12 , the first holding shaft  80  is located below a frame member  18  described below. The first holding shaft  80  is located above the platen  16 . As shown in  FIG. 13 , the first holding shaft  80  has a rectangular cross-section. As shown in  FIG. 11 , the first holding shaft  80  holds the side pinch roller units  60  and the center pinch roller units  70 . In more detail, the first holding shaft  80  is fit into the recessed portion  65 A provided in the main body  65  of the first holding member  64  of each of the side pinch roller units  60 . The first holding shaft  80  is fit into the recessed portion  75 A provided in the main body  75  of the second holding member  74  of each of the center pinch roller units  70 . The side pinch roller units  60  and the center pinch roller units  70  are slidable with respect to the first holding shaft  80  so as to be changed in the position thereof in the scanning direction Y. Therefore, in the case where the recording medium  5  has a width in the scanning direction Y that is smaller than a width of the carrying surface  16   a  of the platen  16 , one of, or both of, the pair of side pinch rollers may be moved toward the center of the carrying surface  16   a  to align the positions of the side pinch rollers  62  in the scanning direction Y to the position of the recording medium  5 . As a result, the side pinch rollers  62  may be located at positions facing both of the two ends, in the scanning direction Y, of the recording medium  5  and press the two ends of the recording medium  5 . 
     As shown in  FIG. 1 , the rotator  81  is located to the right of the platen  16 . As shown in  FIG. 10 , the rotator  81  rotates the first holding shaft  80  in a direction of arrow R 1  and a direction of arrow R 2  in  FIG. 10 . The rotator  81  includes a loading lever  82  and a link mechanism  84 . The loading lever  82  is provided at a front end of the link mechanism  84 . A rear end of the link mechanism  84  is connected with the first holding shaft  80 . When the loading lever  82  is pushed down in a direction of arrow U 1  in  FIG. 10 , the first holding shaft  80  is rotated in the direction of arrow R 1  in  FIG. 10 . As a result, the side pinch rollers  62  and the center pinch rollers  72  approach the grit rollers  57  (see  FIG. 4 ). The operator places the recording medium  5  on the platen  16  and then pushes down the loading lever  82  in the direction of arrow U 1  in  FIG. 10 , and thus causes the recording medium  5  to be held between the side pinch rollers  62 /the center pinch rollers  72  and the grit rollers  57 . By contrast, when the loading lever  82  is pushed up in a direction of arrow U 2  in  FIG. 10 , the first holding shaft  80  is rotated in the direction of arrow R 2  in  FIG. 10 . As a result, the side pinch rollers  62  and the center pinch rollers  72  are separated from the grit rollers  57 . When the printing is finished or the cutting is finished, the operator pushes up the loading lever  82  in the direction of arrow U 2  in  FIG. 10 , and thus causes the recording medium  5  to be removed from the platen  16 . 
     As shown in  FIG. 10 , the center pinch roller moving mechanism  85  is located above the first holding shaft  80 . The center pinch roller moving mechanism  85  allows the center pinch rollers  72  to approach, or to be separated from, the grit rollers  57 . In more detail, the center pinch roller moving mechanism  85  moves the center pinch rollers  72  to positions at which the center pinch rollers  72  hold the recording medium  5  placed on the carrying surface  16   a  of the platen  16  together with the grit rollers  57  facing the center pinch rollers  72  (hereinafter, these positions will be referred to also as “holding positions”). The center pinch roller moving mechanism  85  also moves the center pinch rollers  72  to positions at which the center pinch rollers  72  are separated from the grit rollers  57  (hereinafter, these positions will be referred to also as “separation positions”). The center pinch roller moving mechanism  85  includes a second holding shaft  90 , a plurality of the eccentric cams  88 , a motor  92 , first support members  93 , second support members  94  and a third support member  95 . 
     As shown in  FIG. 10 , the second holding shaft  90  extends in the scanning direction Y. As shown in  FIG. 13 , the second holding shaft  90  is located below the guide rail  15 . The second holding shaft  90  is located to the rear of a front end  15 A of the guide rail  15 . The second holding shaft  90  is located above the platen  16 . The second holding shaft  90  is parallel to the first holding shaft  80 . The second holding shaft  90  is located above the first holding shaft  80 . The second holding shaft  90  is located to the front of the first holding shaft  80 . The second holding shaft  90  is located to the rear of the center pinch rollers  72 . The second holding shaft  90  is located to the rear of the second axis  77 B of each of the center pinch roller units  70 . The second holding shaft  90  has a circular cross-section. The second holding shaft  90  holds the eccentric cams  88 . The second holding shaft  90  is made of a metal material. 
     As shown in  FIG. 14 , the eccentric cams  88  are each allowed to contact the stopping member  79  of the second holding member  74 . The eccentric cam  88  contacts the stopping member  79  to move the corresponding center pinch roller  72  upward. This will be described in more detail. The eccentric cam  88  contacts the stopping member  79 , and as a result, the stopping member  79  is pushed up. Since the stopping member  79  is formed on the arm  76 , the arm  76  is rotated in a direction of arrow K 1  shown in  FIG. 13  as being centered around the first shaft  77 A. As a result, the center pinch roller  72  rotatably supported by the second shaft  77 B provided on the arm  76  is moved upward, and thus is separated from the grit roller  57  (see  FIG. 14 ). The eccentric cam  88  is located above the grit roller  57 . The eccentric cam  88  is located to the rear of the front end  15 A of the guide rail  15 . As shown in  FIG. 13 , while the second holding shaft  90  is not rotating, the eccentric cam  88  and the second holding member  74  are out of contact with each other. 
     As shown in  FIG. 13 , the distance between a rotation center  89 C and an outer circumferential surface  89 K of the eccentric cam  88  is not constant in the entirety of the circumference of the eccentric cam  88 . The eccentric cam  88  includes a first portion  89 X and a second portion  89 Y. In the first portion  89 X, the distance between the rotation center  89 C and the outer circumferential surface  89 K gradually increases. In the second portion  89 Y, the distance between the rotation center  89 C and the outer circumferential surface  89 K is longer than in the first portion  89 X and is constant. The eccentric cam  88  contacts the stopping member  79  of the second holding member  74  in the first portion  89 X and then contacts the second holding member  74  in the second portion  89 Y. 
     As shown in  FIG. 13 , the eccentric cam  88  includes a first member  89 A and a second member  89 B. The first member  89 A includes an insertion hole  89 H, into which the second holding shaft  90  is inserted. The first member  89 A rotates integrally with the second holding shaft  90 . The first member  89 A is made of a metal material. The first member  89 A and the second holding shaft  90  are secured to each other via, for example, a screw. The second member  89 B is made of, for example, a resin material. The second member  89 B is allowed to contact the stopping member  79  of the second holding member  74 . The second member  89 B includes a recessed portion  89 BX. A protrusion  89 AX of the first member  89 A is fit into the recessed portion  89 BX, and thus the second member  89 B is attached to the first member  89 A. 
     As shown in  FIG. 10 , the motor  92  is connected with a right end of the second holding shaft  90  via a belt  92 B. The motor  92  and the belt  92 B are located to the right of the platen  16 . Alternatively, the motor  92  and the belt  92 B may be located to the left of the platen  16 . In the latter case, the motor  92  may be connected with a left end of the second holding shaft  90  via the belt  92 B. The motor  92  is controlled by the controller  50  (see  FIG. 3 ). The motor  92  is driven to run the belt  92 B, and as a result, the second holding shaft  90  rotates. As shown in  FIG. 13 , the second holding shaft  90  may be rotated in a direction of arrow H 1  in  FIG. 13 , so that the eccentric cam  88  contacts the stopping member  79  of the second holding member  74 . By contrast, the second holding shaft  90  may be rotated in a direction of arrow H 2  in  FIG. 13 , so that the eccentric cam  88  is separated away from the stopping member  79  of the second holding member  74 . 
     In the above-described preferred embodiments, the driving force of the motor  92  is transmitted to the second holding shaft  90  via the belt  92 B. The manner of transmission is not limited to this. The motor  92  may be directly connected with the second holding shaft  90 . 
     As shown in  FIG. 4 , the frame member  18  is provided below the guide rail  15 . The frame member  18  extends in the scanning direction Y. As shown in  FIG. 12 , the frame member  18  includes a protrusion  18 A in contact with the guide rail  15  and a recessed portion  18 B out of contact with the guide rail  15 . The eccentric cam  88  is located between a left end and a right end of the protrusion  18 A of the frame member  18 . As shown in  FIG. 15 , the frame member  18  is secured, via a screw  14 , to the main body frame  19 , to which the guide rail  15  is secured. The frame member  18  includes a vertical wall  18 K extending in the up-down direction and an inclining wall  18 L extending obliquely in a rearward and downward direction from a bottom end of the vertical wall  18 K. As shown in  FIG. 13 , the inclining wall  18 L is not present to the rear of the eccentric cam  88 . The inclining wall  18 L is not present above the grit roller  57 . The inclining wall  18 L inhibits the center pinch rollers  72  from moving downward. Namely, when the grit rollers  57  are not present below the center pinch rollers  72  and the first holding shaft  80  rotates in the direction of arrow R 1  in  FIG. 15 , the inclining wall  18 L contacts the stopping member  79  of the second holding member  74 . Therefore, the arm  76  of the second holding member  74  is prevented from rotating in the direction of arrow K 2  in  FIG. 15  as being centered around the first shaft  77 A. For this reason, even if the first holding shaft  80  rotates in the direction of arrow R 1  in  FIG. 15 , the center pinch rollers  72  do not move downward. Namely, the center pinch rollers  72  and the grit rollers  57  do not contact each other. 
     As shown in  FIG. 11 , the first support members  93 , the second support members  94  and the third support member  95  support the second holding shaft  90 . The first support members  93 , the second support members  94  and the third support member  95  are attached to the frame member  18 . The first support members  93  are each located to the left of the corresponding eccentric cam  88 . The second support members  94  are each located to the right of the corresponding eccentric cam  88 . The third support member  95  is located between one of the side pinch roller units  60  and the center pinch roller unit  70  adjacent to the one side pinch roller unit  60 . 
     As shown in  FIG. 3 , the controller  50  controls the printing on the recording medium  5  and the cutting of the recording medium  5 . There is no specific limitation on the structure of the controller  50 . The controller  50  is, for example, a microcomputer. There is no specific limitation on the hardware structure of the microcomputer. The microcomputer includes, for example, an I/F, a CPU, a ROM, a RAM and a storage device. As shown in  FIG. 1 , the controller  50  is provided in the main body  100   a . The controller  50  does not need to be provided in the main body  100   a . The controller  50  may be, for example, a computer provided outside the main body  100   a . In this case, the controller  50  is communicably connected with the main body  100   a  in a wired or wireless manner. The controller  50  is electrically connected with, and controls an operation of, the inkjet head  20 , the solenoid  32 , the locking solenoid  37 , the carriage motor  44 , the feed motor  58  and the motor  92 . 
     As shown in  FIG. 3 , the controller  50  includes a data storage  50   a , a mode setter  50   b , a roller position controller  50   c , a printing controller  50   d , and a cutting controller  50   e . The controller  50  may include any other controller but such controllers will not be described herein. 
     The data storage  50   a  stores working data. The working data includes at least one of printing data and cutting data. The printer  100  executes the printing or the cutting based on the working data stored on the data storage  50   a . In the case where the working data includes only the printing data, the printer  100  executes only the printing. In the case where the working data includes only the cutting data, the printer  100  executes only the cutting. In the case where the working data includes both of the printing data and the cutting data, the printer  100  executes the printing and the cutting. 
     The mode setter  50   b  sets a working mode in which the printing and the cutting are to be performed. The mode setter  50   b  sets a working mode in which the printing and the cutting are executed to one of a first working mode and a second working mode. In the first working mode, the printing is first executed and then the cutting is executed. In the second working mode, the cutting is first executed and then the printing is executed. In this preferred embodiment, in the case where the printing data is written before the cutting data in the working data, the mode setter  50   b  sets the working mode to the first working mode. In the case where the cutting data is written before the printing data in the working data, the mode setter  50   b  sets the working mode to the second working mode. 
     The roller position controller  50   c  controls the center pinch roller moving mechanism  85 , more specifically, the motor  92 , to control the movement of the center pinch rollers  72  in the up-down direction. The roller position controller  50   c  controls the positions of the center pinch rollers  72  during the cutting in accordance with the working mode set by the mode setter  50   b . In the case where the working mode is set to the first working mode, the roller position controller  50   c  locates the center pinch rollers  72  at the separated positions during the cutting. In the case where the working mode is set to the second working mode, the roller position controller  50   c  locates the center pinch rollers  72  at the holding positions during the cutting. 
     The printing controller  50   d  controls a printing operation. The printing controller  50   d  controls the driving of the carriage motor  44  to control the rotation of the pulley  42  and the running of the belt  43  (see  FIG. 1 ). In this manner, the printing controller  50   d  controls the movement of the inkjet head  20  and the cutting head  30  in the scanning direction Y. The printing controller  50   d  controls the driving of the feed motor  58  to control the rotation of the grit rollers  57 . In this manner, the printing controller  50   d  controls the movement of the recording medium  5  placed on the platen  16  in the transportation direction X. The printing controller  50   d  controls the timing at which the inkjet head  20  injects the ink, the amount of the ink to be injected, and the like. With such controls, the printing controller  50   d  prints an image on the recording medium  5 . 
     The cutting controller  50   e  controls a cutting operation. The cutting controller  50   e  controls the solenoid  32  to control the movement of the cutter  33  in the up-down direction and the pressure of the cutter  33 . The cutting controller  50   e  controls the driving of the carriage motor  44  to control the movement of the cutting head  30  in the scanning direction Y. The cutting controller  50   e  controls the driving of the feed motor  58  to control the movement of the recording medium  5  placed on the platen  16  in the transportation direction X. With such controls, the cutting controller  50   e  cuts the recording medium  5 . 
     Hereinafter, a work performed by the printer  100  in the case where the working data includes both of the printing data and the cutting data will be described. First, input of the working data and the setting of the working mode will be described, and then, the setting of the recording medium  5  will be described. After that, the case where the printing and the cutting are executed in the first working mode (the printing is first performed, and then, the cutting is performed) and the case where the printing and the cutting are executed in the second working mode (the cutting is first performed, and then, the printing is performed) will be described. 
     The working data is, for example, transmitted from an external computer or the like connected with the printer  100  to the data storage  50   a  together with an execution instruction. In this preferred embodiment, the data storage  50   a  temporarily stores the working data to be executed. 
     The mode setter  50   b  sets the working mode in which the printing and the cutting are to be executed, based on the working data stored on the data storage  50   a . In the case of including the printing data and the cutting data, the working data has one of the printing data and the cutting data written therein first and the other of the printing data and the cutting data written thereafter. In the case where the printing data is written in the working data before the cutting data, the mode setter  50   b  sets the working mode to the first working mode. In the case where the cutting data is written in the working data before the printing data, the mode setter  50   b  sets the working mode to the second working mode. In other words, the mode setter  50   b  sets the working mode such that the printing and the cutting are executed in the order of being written in the working data. 
     The recording medium  5  is set to the printer  100  by the operator. As shown in  FIG. 4 , when the recording medium  5  is to be placed on the platen  16 , the side pinch rollers  62  and the center pinch rollers  72  are separated from the grit rollers  57 . When the positional alignment of the recording medium  5  and the platen  16  is finished, the operator pushes down the loading lever  82  in the direction of arrow U 1  in  FIG. 10 . As a result, the first holding shaft  80  rotates in the direction of arrow R 1  in  FIG. 10 . The first holding shaft  80  holds the first holding members  64  and the second holding members  74 . Therefore, the first holding members  64  and the second holding members  74  also rotate in the direction of arrow R 1  in  FIG. 10 . Thus, the side pinch rollers  62  and the center pinch rollers  72  approach the grit rollers  57 . As a result, the recording medium  5  is held between the side pinch rollers  62  and the grit rollers  57  and between the center pinch rollers  72  and the grit rollers  57  (see  FIG. 13 ). 
     (First Working Mode) 
     In the case where the first working mode is set based on the working data, the printing is first performed, and then, the cutting is performed. The printing is performed while the recording medium  5  is intermittently transported in the first transportation direction X 1 . Before the printing, the inkjet head  20  and the cutting head  30  are coupled with each other. During the printing, the printer  100  controls the carriage motor  44  to run the inkjet head  20  in the scanning direction Y while controlling the inkjet head  20  to eject the ink. When the printing on a portion of the recording medium  5  that is below the inkjet head  20  is finished, the recording medium  5  is transported in the first transportation direction X 1 . These operations are repeated, and thus the printing of an image on the recording medium  5  is finished. 
     During the printing, the center pinch rollers  72  are located at the holding positions. During the printing, the center pinch rollers  72  hold the recording medium  5  together with the grit rollers  57  facing the center pinch rollers  72 . The center pinch rollers  72  are provided in a printing area of the inkjet head  20  in the scanning direction Y. However, the center pinch rollers  72  are provided on the second transportation direction X 2  side with respect to the inkjet head  20 , and therefore, do not contact the image during the printing. 
     In the first working mode, when the printing is finished, the recording medium  5  needs to be moved in the second transportation direction X 2  in order to be cut. If the recording medium  5  is moved in the second transportation direction X 2  while being held between the center pinch rollers  72  and the grit rollers  57 , the center pinch rollers  72  move on the printed image, which may undesirably influence the quality of the image. Therefore, when the printing is finished, the controller  50  drives the motor  92  to rotate the second holding shaft  90  in the direction of arrow H 1  in  FIG. 13 . Thus, each of the eccentric cams  88  also rotates in the direction of arrow H 1 , and pushes up the stopping member  79  of the second holding member  74 . As a result, as shown in  FIG. 14 , the center pinch rollers  72  move upward, and thus are separated from the grit rollers  57 . Even if the second holding shaft  90  rotates, the side pinch rollers  62  do not move upward. Therefore, the recording medium  5  is kept held between the side pinch rollers  62  and the grit rollers  57 . After the above-described movement of the center pinch rollers  72 , the grit rollers  57  are driven to transport the recording medium  5  back in the second transportation direction X 2 , and the cutting of the recording medium  5  is started. 
     The cutting is performed while the recording medium  5  is transported in the first transportation direction X 1  and the second transportation direction X 2 . Before the cutting, the inkjet head  20  and the cutting head  30  are separated from each other. During the cutting, the printer  100  controls the carriage motor  44  to run the cutting head  30  in the scanning direction Y while moving the recording medium  5  in the first transportation direction X 1  and the second transportation direction X 2 . As a result, the cutter  33  moves two-dimensionally with respect to the recording medium  5 , and thus the recording medium  5  is cut along cutting lines of the cutting data. 
     During the cutting, a portion of the printed image may pass on the plurality of grit rollers  57  arrayed in a line. However, in the first working mode, the center pinch rollers  72  are located at the separation positions during the cutting. Therefore, the center pinch rollers  72  do not contact the printed image. During the cutting, the recording medium  5  is pressed from above only by the side pinch rollers  62 . The side pinch rollers  62  are provided outer to the printing area in the scanning direction Y. Therefore, the side pinch rollers  62  do not contact the printed image, either. 
     When the cutting of the recording medium  5  is finished, the operator pushes up the loading lever  82  in the direction of arrow U 2  in  FIG. 10 . Thus, the first holding shaft  80  rotates in the direction of arrow R 2  in  FIG. 10 . As a result, the side pinch rollers  62  are separated from the grit rollers  57 , and thus the recording medium  5  is removable from the platen  16 . After the cutting is finished, the controller  50  drives the motor  92  to rotate the second holding shaft  90  in the direction of arrow H 2  in  FIG. 14 . As a result, each of the eccentric cams  88  also rotates in the direction of arrow H 2 , and is separated from the stopping member  79 . Thus, the center pinch rollers  72  are moved downward. 
     (Second Working Mode) 
     In the case where the second working mode is set, the cutting is first performed, and then, the printing is performed. The second working mode has advantages that, for example, it is not needed to wait for the printed image to be dried, or that the expansion and the contraction of the recording medium  5  caused as a result of the recording medium  5  absorbing the ink does not influence the cutting. Therefore, there are cases where the printing and the cutting in the second working mode are desired. 
     The cutting operation in the second working mode is performed in generally the same manner as in the first working mode. It should be noted, however, that in the second working mode, the center pinch rollers  72  are located at the holding positions during the cutting. In the second working mode, during the cutting, the center pinch rollers  72  hold the recording medium  5  together with the grit rollers  57  facing the center pinch rollers  72 . In the second working mode, no image has not been printed on the recording medium  5  when the recording medium  5  is cut. Therefore, it is not needed to move the center pinch rollers  72  to the separation positions to avoid contact of the center pinch rollers  72  with the printed image. 
     In the second working mode, the printing is performed after the cutting. Before the printing, the recording medium  5  is transported back in the second transportation direction X 2 . The printing in the second working mode is performed in the same manner as in the first working mode. Namely, during the printing, the recording medium  5  is intermittently transported in the first transportation direction X 1 , and during this period, the center pinch rollers  72  are located at the holding positions. The printing is performed in the state in which the center pinch rollers  72  and the side pinch rollers  62  hold the recording medium  5  together with the grit rollers  57 . The work of removing the recording medium  5  from the printer  100  after the printing is substantially the same as in the first working mode. 
     As described above, with the printer  100  according to this preferred embodiment, in the first working mode, in which the printing is performed before the cutting, during the cutting, the center pinch rollers  72  are retracted to the separation positions, at which the center pinch rollers  72  are separated from the recording medium  5 , and thus do not contact the printed image. Therefore, an inconvenience that the printed image is damaged or the like is avoided. During the cutting, only the pair of side pinch rollers  62 , which are respectively provided at the two ends, namely, at the left and right ends, of the platen  16  and do not contact the printing area, press the recording medium  5 . By contrast, in the second working mode, in which the cutting is performed before the printing, during the cutting, the center pinch rollers  72  are located at the holding positions, at which the center pinch rollers  72  contact the recording medium  5 , and thus press the recording medium  5  together with the side pinch rollers  62 . This stabilizes the movement of the recording medium  5  in the transportation direction X. 
     As described above, according to this preferred embodiment, the center pinch rollers  72  are left at the holding positions during the cutting in the case where the cutting is performed first. This stabilizes the movement of the recording medium  5  during the cutting. Therefore, in the case where the cutting is performed before the printing, the cutting quality is improved. 
     According to this preferred embodiment, the printing and the cutting are performed in the order of being written in the working data. With such a structure, the order of the printing and the cutting is automatically set, and thus the operator does not need to operate the printer  100 . 
     The transportation device  55  according to this preferred embodiment has, for example, the following advantages as a mechanical device. 
     With the printer  100  according to this preferred embodiment, the rotator  81  rotates the first holding shaft  80  to cause the side pinch rollers  62  and the center pinch rollers  72  to approach the grit rollers  57 . With such a structure, the recording medium  5  is held between the side pinch rollers  62  and the grit rollers  57  and between the center pinch rollers  72  and the grit rollers  57 . This stabilizes the transportation of the recording medium  5  in the transportation direction X during the printing. In addition, the motor  92  rotates the second holding shaft  90  to put the eccentric cams  88  into contact with the second holding members  74 . With such a structure, the center pinch rollers  72  are moved upward. As a result, a state is realized in which the side pinch rollers  62  and the grit rollers  57  hold the recording medium  5  whereas the center pinch rollers  72  and the grit rollers  57  do not hold the recording medium  5 . Therefore, in the first working mode, when the recording medium  5  is to be cut after being transported in the second transportation direction X 2 , the center pinch rollers  72  are prevented from contacting the printed image while the recording medium  5  is moved by the side pinch rollers  62 . 
     With the printer  100  according to this preferred embodiment, the distance between the rotation center  89 C and the outer circumferential surface  89 K of each of the eccentric cams  88  is not constant in the entirety of the circumference of the eccentric cam  88 . This easily allows the eccentric cam  88  and the second holding member  74  to contact each other and to be separated from each other. 
     With the printer  100  according to this preferred embodiment, the eccentric cams  88  each include the first portion  89 X and the second portion  89 Y. In the first portion  89 X, the distance between the rotation center  89 C and the outer circumferential surface  89 K gradually increases. In the second portion  89 Y, the distance between the rotation center  89 C and the outer circumferential surface  89 K is longer than in the first portion  89 X and is constant. The eccentric cam  88  contacts the second holding member  74  in the first portion  89 X and then contacts the second holding member  74  in the second portion  89 Y. This allows the second holding member  74  to contact the eccentric cam  88  smoothly, and also prevents generation of strange noise and application of an excessive load on the second holding member  74 . 
     With the printer  100  according to this preferred embodiment, the first member  89 A and the second holding shaft  90  are made of a metal material, and therefore, are secured strongly to each other. The second member  89 B in contact with the second holding member  74  is made of a resin material, and therefore, is highly durable. 
     With the printer  100  according to this preferred embodiment, the eccentric cams  88  each push up the corresponding stopping member  79  to move the center pinch roller  72  upward. With such a simple structure in which the eccentric cam  88  contacts and pushes up the stopping member  79 , the center pinch roller  72  is moved upward. 
     With the printer  100  according to this preferred embodiment, the left end  79 L of the stopping member  79  is located to the right of the left end  72 L of the center pinch roller  72  as seen in a front view. The right end  79 R of the stopping member  79  is located to the left of the right end  72 R of the center pinch roller  72  as seen in a front view. With such a structure, the center pinch roller  72  is lifted up with a relatively small force. 
     With the printer  100  according to this preferred embodiment, the center  79 C of the stopping member  79  in the scanning direction Y and the center  72 C of the center pinch roller  72  in the scanning direction Y match each other. With such a structure, the center pinch roller  72  is lifted up with a relatively small force. 
     With the printer  100  according to this preferred embodiment, the first support members  93  support the second holding shaft  90  and are each attached to a portion of the frame member  18  that is to the left of the corresponding eccentric cam  88 . The second support members  94  support the second holding shaft  90  and are each attached to a portion of the frame member  18  that is to the right of the corresponding eccentric cam  88 . With such a structure, the second holding shaft  90  is prevented from sagging due to the reaction force of the second holding members  74  applied to the second holding shaft  90  via the eccentric cams  88 . Namely, the center pinch rollers  72  are moved upward more certainly. 
     With the printer  100  according to this preferred embodiment, the frame member  18  includes the inclining wall  18 L. When the grit rollers  57  are not located below the center pinch rollers  72  and the first holding shaft  80  rotates, the inclining wall  18 L contacts the second holding members  74  to inhibit the center pinch rollers  72  from moving downward. In this manner, in the case where the grit rollers  57  are not located below the center pinch rollers  72 , the frame member  18  prevents the center pinch rollers  72  from contacting the recording medium  5 . 
     (Modifications) 
     The above-described embodiment may be carried out in any of other preferred modifications. For example, in one preferred modification, the working mode is selected by the operator. This preferred modification is the same as the above-described embodiment except for this. Thus, in the following description of the preferred modification, the identical components to those in the above-described embodiment will bear the identical reference signs, and overlapping descriptions will be omitted or simplified. 
       FIG. 16  is a block diagram of a control system of the printer  100  according to this preferred modification. As shown in  FIG. 16 , in this preferred modification, the controller  50  includes a mode input portion  50   f . The mode input portion  50   f  allows one of the first working mode and the second working mode to be input thereto. The mode input portion  50   f  causes, for example, the operation panel  12  or the like to display a screen on which the working mode may be selected. In this preferred modification, the mode setter  50   b  sets the working mode to the working mode input to the mode input portion  50   f.    
     The mode input portion  50   f  and the mode setter  50   b  operating as described above allow the printing and the cutting to be performed in an order different from the order assumed when the working data is created. Therefore, in the case where it is wished to perform the printing and the cutting in an order different from the order assumed when the working data is created, it is not needed to correct the working data. For example, the mode setter  50   b  may basically set the working mode such that the printing and the cutting are performed in the order written in the working data and change the working mode only when the working mode is changed by the mode input portion  50   f.    
     Some preferred embodiments of the present invention are described above. The above-described embodiments and the modifications are merely examples, and the present invention may be carried out in any of various other embodiments or modifications. 
     For example, in the above-described embodiment, the side pinch rollers  62  and the center pinch rollers  72  are put into contact with the recording medium  5  at the same time by the operator operating the loading lever  82 . Only the center pinch rollers  72  are moved upward to be separated from the recording medium  5  when necessary. The mechanism that moves the side pinch rollers  62  and the center pinch rollers  72  is not limited to this. The side pinch rollers  62  and the center pinch rollers  72  may be moved independently by separate moving mechanisms. The mechanism that moves the side pinch rollers  62  and the center pinch rollers  72  does not need to be a mechanism that rotates the side pinch rollers  62  and the center pinch rollers  72  about a rotation shaft extending in the scanning direction Y. For example, the side pinch rollers  62  and the center pinch rollers  72  may be simply moved in the up-down direction. There is no specific limitation on the mechanism that moves the side pinch rollers  62  and the center pinch rollers  72 . 
     The embodiments described herein do not limit the present invention unless otherwise specified. 
     The terms and expressions used herein are for description only and are not to be interpreted in a limited sense. These terms and expressions should be recognized as not excluding any equivalents to the elements shown and described herein and as allowing any modification encompassed in the scope of the claims. The present invention may be embodied in many various forms. This disclosure should be regarded as providing preferred embodiments of the principle of the present invention. These preferred embodiments are provided with the understanding that they are not intended to limit the present invention to the preferred embodiments described in the specification and/or shown in the drawings. The present invention is not limited to the preferred embodiments described herein. The present invention encompasses any of preferred embodiments including equivalent elements, modifications, deletions, combinations, improvements and/or alterations which can be recognized by a person of ordinary skill in the art based on the disclosure. The elements of each claim should be interpreted broadly based on the terms used in the claim, and should not be limited to any of the preferred embodiments described in this specification or used during the prosecution of the present application. 
     While preferred embodiments of the present invention have been described above, it is to be understood that variations and modifications will be apparent to those skilled in the art without departing from the scope and spirit of the present invention. The scope of the present invention, therefore, is to be determined solely by the following claims.