JP2015129030A - Medium temporary placement device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a medium temporary placement device capable of being designed or changed independently of an ink jet printer.SOLUTION: In a medium temporary placement device 100, a roll medium is temporarily placed at a height for detachment for detaching the roll medium on a roll holder of an ink jet printer including a printing section for executing printing on the roll medium to be a rolled printing medium and the roll holder for holding the roll medium for the printing by the printing section. The medium temporary placement device 100 includes: a medium mounting section 120 on which the roll medium is mounted; a height adjustment mechanism 130 for adjusting the height of the medium mounting section 120; and a groove section 111a and a contact section 112a which are detachably connected to the ink jet printer.

Description

  The present invention relates to a temporary medium placement in which a roll medium is temporarily placed at a height for attaching / detaching the roll medium to / from a medium holding portion of an inkjet printer that performs printing on the roll medium that is a roll-shaped print medium. Relates to the device.

  Conventionally, as an inkjet printer that performs printing on a roll medium, a printing unit that performs printing on the roll medium, a medium holding unit that holds the roll medium for printing by the printing unit, and a roll medium with respect to the medium holding unit There is known a device that includes a medium temporary placement device in which a roll medium is temporarily placed at a height for attaching and detaching (see Patent Document 1).

JP 2013-40020 A

  However, since the medium temporary placement device of the conventional ink jet printer is provided so as not to be detachable from the ink jet printer, it is necessary to change the design of the ink jet printer itself when the design of the medium temporary placement device is changed. There's a problem.

  SUMMARY An advantage of some aspects of the invention is that it provides a temporary medium storage device that can be redesigned independently of an inkjet printer.

  A medium temporary placement apparatus according to the present invention includes an ink jet including a printing unit that performs printing on a roll medium that is a roll-shaped print medium, and a medium holding unit that holds the roll medium for printing by the printing unit. A medium temporary placement apparatus in which the roll medium is temporarily placed at an attachment / detachment height for attaching / detaching the roll medium to / from the medium holding unit of the printer, and the medium placement on which the roll medium is placed A height adjusting mechanism that adjusts the height of the medium mounting portion, and a connecting portion that is detachably connected to the inkjet printer.

  With this configuration, the temporary medium storage device of the present invention can be attached to and detached from the ink jet printer, so that the design can be changed independently of the ink jet printer.

  Further, in the medium temporary placement device of the present invention, the connecting portion is a guide member that extends in the extending direction of the roll medium and supports the medium holding portion movably in the extending direction in the ink jet printer. You may connect so that attachment or detachment is possible.

  With this configuration, the medium temporary placement apparatus according to the present invention does not need to be provided with a dedicated portion for attaching / detaching the medium temporary placement apparatus itself, so that the medium temporary placement apparatus itself is attached / detached. Compared with a configuration in which the portion is provided in the ink jet printer, the structure of the ink jet printer can be simplified.

  In the medium temporary placement device of the present invention, the height adjustment mechanism includes an operation unit to which power for adjusting the height of the medium placement unit is input, and an increase in the height of the medium placement unit. And a lock mechanism that prohibits the descent while allowing it.

  With this configuration, the medium temporary placement device according to the present invention uses the lock mechanism to raise the height of the medium placement unit and lower the height of the medium placement unit by the power input to the operation unit. Since the operation is automatically prohibited, an operation for fixing the height of the medium placement unit can be eliminated. Therefore, the medium temporary placement device of the present invention can facilitate the operation of adjusting the height of the medium placement unit.

  Further, in the medium temporary placement device of the present invention, the height adjustment mechanism is a rack-and-and-converter that converts a rotational force generated by the power input to the operation unit into a movement in the height direction of the medium placement unit. A pinion may be provided.

  With this configuration, the medium temporary placement device of the present invention can continuously adjust the height of the medium placement unit.

  The medium temporary placement device of the present invention can be redesigned independently of the ink jet printer.

1 is an external perspective view of an inkjet printer according to an embodiment of the present invention. FIG. 2 is an external perspective view of the ink jet printer shown in FIG. 1 with a roll medium removed. FIG. 2 is an external perspective view of the medium temporary placement device shown in FIG. 1. (A) is a side view of the medium temporary placement apparatus shown in FIG. 3 in a state where the height of the medium placement unit is low. FIG. 4B is a side view of the medium temporary placement device illustrated in FIG. 3 in a state where the height of the medium placement unit is high. (A) is a side view of the medium temporary placement apparatus in the state shown in FIG. 4 (a) when some members of the height adjusting mechanism are made transparent. FIG. 5B is a side view of the medium temporary placement device in the state shown in FIG. 4B when some members of the height adjusting mechanism are made transparent. FIG. 5A is a side view of the medium temporary placement device in the state shown in FIG. 4A in the case where the case and some members of the height adjustment mechanism are made transparent. FIG. 5B is a side view of the medium temporary placement device in the state shown in FIG. 4B when the case and some members of the height adjustment mechanism are made transparent. (A) is a side view of the medium temporary placement device in the state shown in FIG. 4 (a) in the case where the case and the medium placement portion and some members of the height adjustment mechanism are made transparent. FIG. 4B is a side view of the medium temporary placement device in the state shown in FIG. 4B in the case where the case, the medium placement unit, and some members of the height adjustment mechanism are made transparent. FIG. 4A shows the temporary medium placement device in the state shown in FIG. 4A in the case where the case and the medium placement portion are made transparent and more members than FIG. 7 in the height adjusting mechanism are made transparent. It is a side view. FIG. 4B shows the medium temporary placement device in the state shown in FIG. 4B when the case and the medium placement portion are made transparent and more members than FIG. 7 are made transparent among the height adjusting mechanism. It is a side view. FIG. 4 is a side view of the lock mechanism shown in FIG. 3 in a state in which rotation in one direction is prohibited among rotations of the handle. FIG. 2 is an external perspective view of the ink jet printer shown in FIG. 1 in a state where a roll medium and a medium temporary placement device are removed. FIG. 2 is an external perspective view of the ink jet printer shown in FIG. 1 in a state where a roll medium is temporarily placed on a medium temporarily placing apparatus. FIG. 4 is a side view of the lock mechanism shown in FIG. 3 in a state where prohibition of rotation of the handle is released.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  First, the configuration of the ink jet printer according to the present embodiment will be described.

  FIG. 1 is an external perspective view of an inkjet printer 10 according to the present embodiment.

  As shown in FIG. 1, the inkjet printer 10 includes a leg 20 that is installed on a floor 90, and a printing unit 30 that is installed on the leg 20 and performs printing on a roll medium 80 that is a roll-shaped print medium. The feeding side holding unit 40 that is installed on the leg unit 20 and holds the roll medium 80 on the feeding side of the printing medium for printing by the printing unit 30; and the printing unit 30 that is installed on the leg unit 20 for printing by the printing unit 30 Therefore, a winding side holding unit 50 that holds the roll medium 80 on the winding side of the print medium is provided.

  The printing unit 30 extends in the main scanning direction indicated by the arrow 10a. The printing unit 30 conveys the printing medium fed from the roll medium 80 held by the feeding side holding unit 40 in the sub-scanning direction indicated by the arrow 10b orthogonal to the main scanning direction, and takes up the winding side holding unit 50. Is rolled up as a roll medium 80 held on the surface. Further, the printing unit 30 moves an inkjet head (not shown) that ejects ink toward the printing medium in the main scanning direction, and executes printing on the printing medium by the inkjet head.

  FIG. 2 is an external perspective view of the ink jet printer 10 with the roll medium 80 removed.

  As shown in FIGS. 1 and 2, the feeding side holding unit 40 includes a pair of roll holders 41 as a medium holding unit for holding the roll medium 80 for printing by the printing unit 30, and a roll medium 80 indicated by an arrow 10a. Guide members 42 and 43 that extend in the extending direction and support the roll holder 41 so as to be movable in the extending direction indicated by the arrow 10a.

  The roll holder 41 has a hole 41a into which a cylindrical guide member 42 is inserted. The roll holder 41 is fastened with a guide member contact portion 41b placed on the guide member 43, and a roll medium insertion portion 41c inserted into a paper tube (not shown) that constitutes the core of the roll medium 80. And a fixing screw 41d that contacts the guide member 42 and fixes the position of the roll holder 41 in the direction indicated by the arrow 10a.

  Since the structure of the winding side holding | maintenance part 50 is the same as that of the structure of the feeding side holding | maintenance part 40, description is abbreviate | omitted.

  In the ink jet printer 10, a pair of medium temporary placement apparatuses in which the roll medium 80 is temporarily placed at a height for attaching and detaching the roll medium 80 to and from the roll holder 41 (hereinafter referred to as “removal height”). 100 is attached.

  FIG. 3 is an external perspective view of the medium temporary placement device 100.

  As shown in FIG. 3, the medium temporary placement device 100 includes a case 110, a medium placement unit 120 on which a roll medium 80 (see FIG. 1) is placed, a direction indicated by an arrow 10 a, and a direction indicated by an arrow 10 b. And a height adjusting mechanism 130 that adjusts the height of the medium placement unit 120 in the direction indicated by the arrow 10c orthogonal to both.

  FIG. 4A is a side view of the medium temporary placement device 100 in a state where the height of the medium placement unit 120 is low. FIG. 4B is a side view of the medium temporary placement device 100 in a state where the height of the medium placement unit 120 is high. FIG. 5A is a side view of the medium temporary placement device 100 in the state shown in FIG. 4A when some members of the height adjusting mechanism 130 are made transparent. FIG. 5B is a side view of the medium temporary placement device 100 in the state shown in FIG. 4B when some members of the height adjusting mechanism 130 are made transparent.

  As shown in FIGS. 3 to 5, the case 110 includes a frame 111 having a semicircular groove 111 a as a connecting portion that is detachably connected to the guide member 42 of the inkjet printer 10 (see FIG. 1). A frame 112 having a contact portion 112a as a connecting portion detachably connected to the guide member 43 of the ink jet printer 10 and a frame 113 for fixing the height adjusting mechanism 130 are provided. The frame 111 and the frame 112 are fixed to each other by a plurality of screws 110a. The frame 111 and the frame 113 are fixed to each other by a plurality of screws 110b.

  The frame 111 includes an inclined portion 111b having a central height that is low because the roll medium 80 is placed thereon. In the frame 111, a notch 111c into which a shaft 139 described later of the height adjusting mechanism 130 is inserted, a screw hole 111d in which a screw 152 of a lock mechanism 150 described later of the height adjusting mechanism 130 is fixed, and height adjustment An arcuate guide groove 111e for restricting the rotation range of a rotation restricting member 153 of the lock mechanism 150, which will be described later, of the mechanism 130 is formed.

  FIG. 6A is a side view of the medium temporary placement device 100 in the state shown in FIG. 4A when the case 110 and some members of the height adjusting mechanism 130 are made transparent. FIG. 6B is a side view of the medium temporary placement device 100 in the state shown in FIG. 4B when the case 110 and some members of the height adjusting mechanism 130 are made transparent.

  As shown in FIGS. 3 and 6, the medium placement unit 120 includes a frame 121 connected to a rack 133 (to be described later) of the height adjustment mechanism 130 and a frame 122 connected to the frame 121. The frame 121 and the frame 122 are fixed to each other by a plurality of screws 120a.

  The frame 121 includes an inclined portion 121a whose center height is low because the roll medium 80 is placed thereon. The frame 121 is formed with a notch 121b for avoiding contact of the height adjusting mechanism 130 with a gear 135 described later.

  The frame 122 includes an inclined portion 122a having a low center height for the roll medium 80 to be placed thereon. The frame 122 is formed with a notch 122 b for avoiding contact with the guide member 42 of the ink jet printer 10 and a notch 122 c for avoiding contact with a shaft 139 described later of the height adjusting mechanism 130. ing.

  FIG. 7A illustrates the medium temporary placement device 100 in the state illustrated in FIG. 4A when the case 110, the medium placement unit 120, and some members of the height adjustment mechanism 130 are made transparent. It is a side view. FIG. 7B shows the medium temporary placement device 100 in the state shown in FIG. 4B when the case 110, the medium placement unit 120, and some members of the height adjustment mechanism 130 are made transparent. It is a side view. FIG. 8A shows the state shown in FIG. 4A in the case where the case 110 and the medium placement unit 120 are made transparent and more members than those in FIG. 7 in the height adjusting mechanism 130 are made transparent. 4 is a side view of the medium temporary placement device 100. FIG. FIG. 8B shows the state shown in FIG. 4B in the case where the case 110 and the medium placement unit 120 are made transparent and more members of the height adjusting mechanism 130 are made transparent than in FIG. 4 is a side view of the medium temporary placement device 100. FIG.

  As shown in FIGS. 3, 4, 7, and 8, the height adjustment mechanism 130 includes a frame 131 that is fixed to the frame 111 of the case 110 by a plurality of screws 100 a and a plurality of screws that are attached to the frame 113 of the case 110. A frame 132 fixed by 100b, a rack 133 supported by the frame 131 and the frame 132 so as to be movable in the direction indicated by an arrow 10c, and a frame 131 and a frame 131 extending in a direction orthogonal to the direction indicated by the arrow 10c. A shaft 134 rotatably supported by the frame 132, a gear 135 fixed to the shaft 134 and meshing with the rack 133, and extending parallel to the shaft 134 and rotatably supported by the frame 131 and the frame 132. Shaft 136, and fixed to the shaft 136 and smaller in diameter than the gear 135. A gear 137 meshing with the gear 135, a shaft 136 and a gear 138 fixed to the gear 137 and having a diameter larger than that of the gear 137, and extending parallel to the shaft 134, so that it can be rotated by the frame 131 and the frame 132. A rotational force is input as a supported shaft 139, a gear 140 fixed to the shaft 139 and having a diameter smaller than that of the gear 138 and meshing with the gear 138, and power for adjusting the height of the medium placement unit 120. A handle 141 serving as an operation unit, and a lock mechanism 150 that allows the height of the medium placement unit 120 to rise and prohibits the drop.

  The frame 131 includes a guide groove 131a for movably supporting the rack 133, a hole 131b for rotatably supporting the shaft 134, a hole 131c for rotatably supporting the shaft 136, and a shaft 139. And a hole 131d for rotatably supporting the.

  Similarly, the frame 132 has a guide groove 132a for movably supporting the rack 133, a hole (not shown) for rotatably supporting the shaft 134, and a shaft 136 for rotatably supporting the shaft 136. A hole (not shown) and a hole (not shown) for rotatably supporting the shaft 139 are formed.

  The frame 131 and the frame 132 are fixed to each other by a plurality of screws 130a.

  The rack 133 includes a plurality of protrusions 133 a that are inserted into the guide grooves 131 a of the frame 131. Similarly, the rack 133 includes a plurality of projections (not shown) that are inserted into the guide grooves 132 a of the frame 132. The rack 133 and the frame 121 of the medium placement unit 120 are fixed to each other by screws 100c (see FIG. 6).

  The rack 133 and the gear 135 constitute a rack and pinion that converts the rotational force input to the handle 141 into a movement in the height direction indicated by the arrow 10 c of the medium placement unit 120.

  The shaft 139 and the handle 141 are fixed to each other by a screw 130b.

  FIG. 9 is a side view of the lock mechanism 150 in a state in which rotation in one direction among rotations of the handle 141 is prohibited.

  As shown in FIG. 9, the lock mechanism 150 is fixed to the handle attachment portion 151 attached to the handle 141 and the screw hole 111 d (see FIG. 5) of the frame 111 of the case 110. Are formed in a cylindrical shape, a rotation restricting member 153 for restricting rotation of the handle attaching portion 151 by contacting the outer peripheral surface of the handle attaching portion 151, and a screw 154 attached to the rotation restricting member 153. And.

  The handle attachment portion 151 includes an uneven portion 151 a on the outer peripheral surface for contacting the rotation restricting member 153. The uneven portions 151a are periodically formed every 90 degrees in the circumferential direction. The handle 141 and the handle attachment portion 151 are fixed to each other by a plurality of screws 150a.

  The rotation restricting member 153 is rotatably supported by the cylindrical portion of the screw 152. The rotation restricting member 153 includes a protruding portion 153a inserted into the guide groove 111e of the frame 111 of the case 110, a claw portion 153b for contacting the concave and convex portion 151a of the handle mounting portion 151, and a lever 153c operated by the user. And.

  In the state shown in FIG. 9, the rotation restricting member 153 is biased in the direction indicated by the arrow 152 a centered on the screw 152 by the weight of the screw 154. Further, in the state shown in FIG. 9, the rotation restricting member 153 is stopped by the protrusion 153 a coming into contact with the end of the guide groove 111 e.

  Next, a method for attaching the roll medium 80 to the roll holder 41 will be described.

  FIG. 10 is an external perspective view of the ink jet printer 10 with the roll medium 80 and the medium temporary storage device 100 removed.

  10, when the medium temporary placement device 100 (see FIG. 3) is not attached to the ink jet printer 10, the user attaches the medium temporary placement device 100 to the ink jet printer 10 as shown in FIG. . Specifically, the medium temporary placement device 100 is mounted on the ink jet printer 10 by being placed on the guide members 42 and 43 so that the groove portion 111a and the contact portion 112a are in contact with the guide members 42 and 43 of the ink jet printer 10, respectively. Installed.

  FIG. 11 is an external perspective view of the inkjet printer 10 in a state where the roll medium 80 is temporarily placed on the medium temporary placement apparatus 100.

  When the inkjet printer 10 is in the state shown in FIG. 2, the user temporarily places the roll medium 80 on the medium temporary placement apparatus 100 as shown in FIG. Specifically, the roll medium 80 has at least one of the inclined portion 111b of the case 110 and the inclined portion 121a and the inclined portion 122a of the medium mounting portion 120 according to the height of the medium mounting portion 120 with respect to the case 110. Temporarily placed.

  When the ink jet printer 10 is in the state shown in FIG. 11, the user can move the medium temporary to a height at which the roll medium insertion portion 41 c of the roll holder 41 can be easily inserted into a paper tube (not shown) constituting the core of the roll medium 80. The height of the roll medium 80 is adjusted by the placing device 100. That is, the medium temporary placement device 100 is adjusted until the height of the roll medium 80 becomes the height for attachment / detachment.

  Specifically, the user increases the height of the medium placement unit 120 with respect to the case 110 by rotating the handle 141 of the medium temporary placement apparatus 100 in the direction indicated by the arrow 141a (see FIG. 9). Can do.

  When the handle 141 is rotated in the direction indicated by the arrow 141a, the handle mounting portion 151 fixed to the handle 141 is also rotated in the direction indicated by the arrow 141a. When the handle attachment portion 151 rotates in the direction indicated by the arrow 141a and contacts the claw portion 153b of the rotation restricting member 153 with the uneven portion 151a, the rotation restricting member 153 has an arrow 152b centered on the screw 152 from the handle attaching portion 151. A rotational force in the direction indicated by (see FIG. 9) is applied. Here, when the rotation restricting member 153 is in the state shown in FIG. 9, the protrusion 153 a extends along the guide groove 111 e of the frame 111 of the case 110 even if it rotates in the direction indicated by the arrow 152 b around the screw 152. Therefore, it can be rotated around the screw 152 in the direction indicated by the arrow 152b. That is, when the handle 141 is rotated in the direction indicated by the arrow 141a, the lock mechanism 150 allows the handle 141 to rotate in the direction indicated by the arrow 141a.

  When the handle 141 is rotated in the direction indicated by the arrow 141a, the rotation of the handle 141 is transmitted to the gear 140 fixed to the shaft 139 together with the handle 141, and is transmitted to the gear 138 engaged with the gear 140. At the same time, it is transmitted to a gear 137 fixed to the shaft 136 and transmitted to a gear 135 meshing with the gear 137. Then, the rotation transmitted to the gear 135 is converted into a movement in the direction indicated by the arrow 10 c by the rack 133 meshing with the gear 135, and the height of the medium placement unit 120 with respect to the case 110 is increased.

  When the handle 141 is rotated in the direction indicated by the arrow 141b (see FIG. 9), the handle mounting portion 151 fixed to the handle 141 is also rotated in the direction indicated by the arrow 141b. When the handle attaching portion 151 rotates in the direction indicated by the arrow 141b and the claw portion 153b of the rotation restricting member 153 is brought into contact with the uneven portion 151a, the rotation restricting member 153 has an arrow 152a centered on the screw 152 from the handle attaching portion 151. A rotational force in the direction indicated by (see FIG. 9) is applied. Here, when the rotation restricting member 153 is in the state shown in FIG. 9, the protrusion 153 a comes into contact with the end of the guide groove 111 e and stops, so that the rotation restricting member 153 is in the direction indicated by the arrow 152 a around the screw 152. Cannot rotate. That is, when the handle 141 is rotated in the direction indicated by the arrow 141b, the lock mechanism 150 prohibits the rotation of the handle 141 in the direction indicated by the arrow 141b. Therefore, when the user increases the height of the medium placement unit 120 with respect to the case 110, the user only has to rotate the handle 141 in the direction indicated by the arrow 141a. The weight of 80 does not lower the height of the medium placement unit 120 with respect to the case 110.

  The user can lower the height of the medium placement unit 120 with respect to the case 110 by rotating the handle 141 of the medium temporary placement apparatus 100 in the direction indicated by the arrow 141b.

  FIG. 12 is a side view of the lock mechanism 150 in a state where the prohibition of the rotation of the handle 141 is released.

  As described above, when the lock mechanism 150 is in the state shown in FIG. 9, the rotation of the handle 141 in the direction indicated by the arrow 141 b is prohibited by the lock mechanism 150. Therefore, the user slightly rotates the handle 141 in the direction indicated by the arrow 141a so that the rotation restricting member 153 can rotate in the direction indicated by the arrow 152b around the screw 152, and then the rotation restricting member 153 The lever 153c is operated to rotate the rotation restricting member 153 in the direction indicated by the arrow 152b with the screw 152 as the center, so that the state shown in FIG. That is, the user cancels the prohibition of the rotation of the handle 141 in the direction indicated by the arrow 141b by the lock mechanism 150.

  When the lock mechanism 150 is in the state shown in FIG. 12, when the handle 141 is rotated in the direction indicated by the arrow 141b, the rotation of the handle 141 is transmitted to the gear 140 fixed to the shaft 139 together with the handle 141. 140 is transmitted to a gear 138 engaged with the gear 140, transmitted to the gear 137 fixed to the shaft 136 together with the gear 138, and transmitted to the gear 135 engaged with the gear 137. Then, the rotation transmitted to the gear 135 is converted into a movement in the direction indicated by the arrow 10 c by the rack 133 meshing with the gear 135, thereby reducing the height of the medium placement unit 120 with respect to the case 110. In addition, when the height of the medium placement unit 120 with respect to the case 110 is reduced, for example, when the roll medium 80 is very heavy, the roll can be performed without the user actively rotating the handle 141 in the direction indicated by the arrow 141b. The direction of the handle 141 as indicated by the arrow 141b is as follows. In some cases, it can be rotated.

  When the height of the medium placement unit 120 with respect to the case 110 is adjusted as described above, and the height of the roll medium 80 on the medium placement unit 120 is adjusted to the height for attachment / detachment, the user In the state where one end of the roll medium 80 is lifted so that the roll medium 80 is slightly separated from the medium placing portion 120 of the medium temporary placement apparatus 100 on one end side of the roll medium 80 of the pair of medium temporary placement apparatuses 100. The roll holder 41 on one end side of the roll medium 80 (hereinafter referred to as “one-end-side roll holder”) is moved along the guide members 42 and 43 in the direction indicated by the arrow 10a. The roll medium insertion portion 41c of the one end side roll holder is inserted into a paper tube (not shown) constituting the core of the medium 80. And a user fixes the position of the one end side roll holder in the direction shown by the arrow 10a by tightening the fixing screw 41d of the one end side roll holder.

  Next, the user moves the other end of the roll medium 80 so that the roll medium 80 is slightly separated from the medium placement unit 120 of the medium temporary placement apparatus 100 on the other end side of the roll medium 80 of the pair of medium temporary placement apparatuses 100. Of the pair of roll holders 41, the roll holder 41 on the other end side of the roll medium 80 (hereinafter referred to as “other end side roll holder”) is indicated by an arrow 10 a along the guide members 42 and 43. By moving in the direction shown, the roll medium insertion portion 41c of the other end side roll holder is inserted into a paper tube (not shown) constituting the core of the roll medium 80. And a user fixes the position of the other end side roll holder in the direction shown by arrow 10a by tightening fixing screw 41d of the other end side roll holder.

  Finally, the user pulls out the print medium from the roll medium 80 held by the pair of roll holders 41, and completes the mounting of the roll medium 80 on the roll holder 41 as shown in FIG.

  Although the method for mounting the roll medium 80 to the roll holder 41 has been described above, the method for removing the roll medium 80 from the roll holder 41 is the same except that the procedure is reversed.

  When exchanging the roll medium 80, when the roll media 80 of the same standard are exchanged, the diameter of the roll medium 80 when not in use (new) is always constant. The height adjustment of the medium placement unit 120 with respect to the case 110 does not need to be redone.

  As described above, since the medium temporary placement device 100 can be attached to and detached from the ink jet printer 10, the design can be changed independently of the ink jet printer 10.

  For example, the medium temporary placement device 100 is removed from the ink jet printer 10 that has been mounted so far, and even when the medium temporary placement device 100 is mounted on an ink jet printer 10 of a different model from the ink jet printer 10, both ink jet printers 10. As long as the standard of the portion to which the medium temporary placement device 100 is attached is the same, the latter can be attached to the inkjet printer 10. On the contrary, even if the medium temporary placement device 100 itself is changed in design, the medium temporary placement device 100 is mounted on the ink jet printer 10 before the design change as long as the standard of the portion mounted on the ink jet printer 10 is not changed. Can be mounted on the same type of inkjet printer 10.

  The medium temporary placement device 100 includes a groove portion 111a and a contact portion 112a that are detachably connected to guide members 42 and 43 that support the roll holder 41 so as to be movable in a direction indicated by an arrow 10a. According to this configuration, the medium temporary placement device 100 does not need to be provided in the inkjet printer 10 with a dedicated portion for attaching and detaching the medium temporary placement device 100 itself. Compared to the configuration in which the dedicated portion is provided in the inkjet printer 10, the structure of the inkjet printer 10 can be simplified.

  The ink jet printer 10 may be provided with a dedicated portion for attaching / detaching the medium temporary placement device 100.

  The medium temporary placement device 100 includes a handle 141 to which power for adjusting the height of the medium placement unit 120 is input, and a lock mechanism 150 that allows the height of the medium placement unit 120 to rise and prohibits the drop. And. With this configuration, the medium temporary placement device 100 is configured so that the power of the medium placement unit 120 is raised by the power input to the handle 141 and the height of the medium placement unit 120 is lowered. Therefore, the operation of fixing the height of the medium placement unit 120 can be made unnecessary. Therefore, the medium temporary placement device 100 can facilitate the operation of adjusting the height of the medium placement unit 120.

  Note that the medium temporary placement device 100 does not include the lock mechanism 150 that allows the height of the medium placement unit 120 to rise and prohibits the lowering, but instead of the medium placement unit 120 according to a user operation. You may provide the structure which prohibits the fall of height.

  Since the medium temporary placement device 100 includes the rack and pinion configured by the rack 133 and the gear 135, the height of the medium placement unit 120 can be continuously adjusted. Note that the medium temporary placement device 100 may not include a rack and pinion.

  The inkjet printer 10 may have a configuration similar to that of the feeding side holding unit 40 with respect to the winding side holding unit 50 (see FIG. 1). That is, the medium temporary placement device 100 can be attached to and detached from the winding side holding unit 50.

  In the present embodiment, the ink jet printer 10 is configured such that the medium temporary placement device 100 cannot be removed while the roll medium 80 is mounted on the roll holder 41. However, the ink jet printer 10 may be configured such that the medium temporary placement device 100 can be removed while the roll medium 80 is mounted on the roll holder 41. In a state where the roll medium 80 is mounted on the roll holder 41, when the medium temporary placement apparatus 100 can be removed from the inkjet printer 10, the medium temporary placement apparatus 100 may be used by a plurality of inkjet printers 10. it can.

10 Inkjet printer 10a Arrow (an arrow indicating the extending direction of the roll medium)
30 Printing part 41 Roll holder (medium holding part)
42, 43 Guide member 80 Roll medium 100 Medium temporary storage device 111a Groove (connecting portion)
112a Contact part (connecting part)
120 Media Placement Unit 130 Height Adjustment Mechanism 133 Rack (Rack and Pinion)
135 Gear (Rack and Pinion)
141 Handle (operation part)
150 Lock mechanism

Claims (4)

A printing unit that performs printing on a roll medium that is a roll-shaped print medium;
The roll medium is mounted at a height for attaching / detaching the roll medium to / from the medium holding part of an ink jet printer that includes a medium holding part for holding the roll medium for printing by the printing part. Temporary media temporary placement device,
A medium placement unit on which the roll medium is placed;
A height adjustment mechanism for adjusting the height of the medium placement unit;
A temporary medium storage device comprising: a connecting portion detachably connected to the ink jet printer.   The connecting portion is detachably connected to a guide member that extends in the extending direction of the roll medium and supports the medium holding portion so as to be movable in the extending direction in the ink jet printer. The medium temporary placement apparatus according to claim 1. The height adjustment mechanism is
An operation unit to which power for adjusting the height of the medium placement unit is input;
3. The medium temporary placement device according to claim 1, further comprising a lock mechanism that allows the height of the medium placement portion to rise and prohibits the drop.   The height adjustment mechanism includes a rack and pinion that converts a rotational force generated by power input to the operation unit into a movement in a height direction of the medium placement unit. Item 4. The medium temporary placement device according to item 3.

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