jig

Abstract

This enables easy and highly accurate alignment between the perforation position of the printing medium and the position of the tearing assist unit in the transport path of the printing device. [Solution] A jig (1) used for aligning the position of the perforations (1201) of a printing medium (12) that is transported by the transport section of the printing device (10) and discharged from the output port (1101) of the printing device with a tearing assist section (1121) provided in the transport path of the printing device to assist the user of the printing device in cutting along the perforations (1202) of the printing medium, comprising a perforation detection device (2) including a light receiving element, and a positioning member (3) that is detachably attached to the printing device and holds the perforation detection device in a position where the light receiving element can receive light reflected within a predetermined range (T) including the cutting position (Y0) in the transport path where the tearing assist section is provided when attached to the printing device.

Description

Technical Field

[0001] The present invention relates to a jig used for aligning the cutting position of a printing device with the perforation of a printing medium.

Background Art

[0002] Some printable media available for use in printing devices have perforations for cutting at predetermined intervals. Among the printing devices that can use printable media with perforations, there are some that have a cleavage assisting part such as a cutting blade that presses against the printable media at the discharge port of the printable media in the device housing in order to make it easier to cut the printable media along the perforations. For example, Patent Document 1 describes a handy terminal having a printer unit provided with a cutting blade for facilitating separation of a form at the form discharge port of the device housing.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In printing equipment that can use perforated substrates, after printing is complete, the substrate is transported so that the position of the perforations on the substrate reaches the position of the tearing assist unit in the transport path. The printing equipment performs this alignment by transporting the substrate by a transport amount corresponding to the distance between adjacent perforation positions along the transport direction of the substrate. Therefore, the user of the printing equipment must align the position of the perforations on the substrate with the position of the tearing assist unit in the transport path in advance. However, the tearing assist unit in the aforementioned printing equipment is often located in a position that is difficult to see from the outside of the equipment housing. Therefore, it is very difficult for the user to visually align the position of the perforations on the substrate with the position of the tearing assist unit in the transport path.

[0005] In view of the above circumstances, one objective of the present invention is to provide a jig that can easily perform highly accurate alignment between the perforation position of the printing medium and the position of the tearing assist unit in the transport path of the printing apparatus. [Means for solving the problem]

[0006] One aspect of the jig is a jig used for aligning the position of perforations on a printing medium that is transported by the transport section of a printing device and discharged from the discharge port of the printing device with a tearing assist section provided in the transport path of the printing device to assist a user of the printing device in tearing along the perforations, the jig comprising: a perforation detection device including a light-receiving element; and a positioning member that is detachably attached to the printing device and, when attached to the printing device, holds the perforation detection device in a position where the light-receiving element can receive light reflected within a predetermined range including the tearing position on the transport path where the tearing assist section is provided. [Effects of the Invention]

[0007] According to the present invention, it is possible to easily perform highly accurate alignment between the perforation position of the printing medium and the position of the tearing assist unit in the transport path of the printing apparatus. [Brief explanation of the drawing]

[0008] [Figure 1] This figure illustrates an example of the configuration of a printer to which a jig according to one embodiment is applied. [Figure 2] Figure 1 illustrates an example of the configuration of the printing medium used in the printer shown. [Figure 3] This is a diagram (part 1) illustrating an example of the configuration of a jig according to one embodiment. [Figure 4] This is a diagram (part 2) illustrating an example of the configuration of a jig according to one embodiment. [Figure 5] This figure illustrates a method for aligning perforations using a jig according to one embodiment. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described below with reference to the drawings. The X, Y, and Z axes in each of the referenced figures are shown for the purpose of defining planes and directions in the illustrated printing apparatus and jigs. The X, Y, and Z axes are orthogonal to each other and form a right-handed system. The directions of the X, Y, and Z axes shown in the figure of the jig only coincide with the directions of the X, Y, and Z axes shown in the figure of the printing apparatus to which the jig is attached. In the following description, the directions parallel to the X, Y, and Z axes will be referred to as "X direction," "Y direction," and "Z direction," respectively. Furthermore, when the X, Y, and Z directions are related to the directions of the arrows (positive and negative) on the illustrated X, Y, and Z axes, they will be labeled "positive side" or "negative side."

[0010] In this specification, the X, Y, and Z directions may be described in relation to the printing medium. For example, the X direction may be described as the "width direction" of the printing medium in the XY plane, and the Y direction may be described as the "longitudinal direction" and "transport direction" of the printing medium in the XY plane. The Z direction may be described as the "thickness direction" of the printing medium. The Z direction may also be described as the "up and down direction." In this specification, "up" or "above" means on the positive Z side of a reference surface, member, position, etc., and "down" or "below" means on the negative Z side of a reference surface, member, position, etc. For example, when it is described as "member B is placed on member A", member B is placed on the positive Z side as viewed from member A. Also, when it is described as "the top surface of member A", that surface is located at the positive Z end of member A and faces the positive Z side. In this specification, "top view" refers to a plan view of the article in question (e.g., a printing device or jig) as seen from the positive Z-direction, and "bottom view" refers to a plan view of the article in question as seen from the negative Z-direction. Furthermore, in this specification, the terms "upstream" and "downstream" may be used to represent multiple positional relationships along the transport direction of the printing medium and positional relationships along the transport path. For convenience, in this specification, the positive Y-direction side from the reference position is described as "downstream," and the negative Y-direction side is described as "upstream." These directions and planes are terms used for explanatory purposes, and their correspondence with the X, Y, and Z axes may change depending on the mounting orientation of the printing device or jig. Also, the aspect ratios and relative sizes of components in each figure are represented schematically and do not necessarily correspond to the relationships in actual manufacturing printing devices and jigs. For explanatory purposes, the relative sizes of components may be exaggerated.

[0011] Figure 1 is a diagram illustrating an example of the configuration of a printer to which a jig according to one embodiment is applied. Figure 2 is a diagram illustrating an example of the configuration of the printable medium used in the printer of Figure 1. Figure 1A shows a perspective view illustrating an example of the external configuration of the printer 10. Figure 1B shows a cross-sectional view illustrating an example of the configuration near the output port of the printable medium 12 in the printer 10. The cross-sectional view in Figure 1B schematically illustrates a cross-sectional configuration parallel to the YZ plane passing through the output port of the printable medium 12. Figure 2 shows a top view of the printable medium and a partially enlarged cross-sectional view within the rectangular area R shown by the dashed-dotted line in Figure 1B.

[0012] The illustrated printer 10 houses a printing medium 12, as well as a print head, platen roller, print control circuit board, and communication module (not shown), within a device housing 11. The printing medium 12 housed within the device housing 11 may be, for example, in the form of a roll. The printer 10 prints on the printing medium 12 while transporting it along a predetermined transport path after it has been unwound from the roll. The printing medium 12 transported along the transport path is discharged to the outside of the device housing 11 through a medium discharge port 1101 provided in the device housing 11. The printer 10 is connected to an external device, for example, by a transmission cable or by wireless communication such as Wi-Fi® and Bluetooth®, and prints on the printing medium 12 based on print data from the external device. The printer 10 is used, for example, to issue boarding passes at airports, baggage claim slips, etc.

[0013] The printable medium 12 may be, for example, thermal paper, or a sticker (label) with a thermal paper printable surface and an adhesive layer on the back. The printable medium 12 is transported along the transport path of the printer 10 in a orientation where the longitudinal direction is the transport direction (Y direction). As illustrated in Figure 2, the printable medium 12 has perforation positions 1201 set at predetermined intervals L in the longitudinal direction, and each of the perforation positions 1201 of the printable medium 12 has a perforation line 1202 that extends along the width direction (X direction). A printer 10 that can use this type of printable medium 12 can be operated, for example, to transport the printable medium 12 by an amount corresponding to an integer multiple of the interval L of the perforation positions 1201 when printing on the printable medium 12. Therefore, as illustrated in Figure 2, the printer 10 can stop transporting the printable medium 12 when the perforation position 1201 of the printable medium 12 reaches position Y0 in the transport path where the tearing assist unit 1121 is provided. The tearing assist unit 1121 may be a part provided in the device housing 11 to assist the user of the printer 10 in cutting the printable medium 12 discharged from the device housing 11 at the perforation position 1201. In the following description, position Y0 of the tearing assist unit 1121 in the transport path will be referred to as the "cutting position Y0".

[0014] The media outlet 1101 provided in the device housing 11 of the printer 10 is composed of a first guide portion 1110, a second guide portion 1120, and a third guide portion and a fourth guide portion (not shown). The first guide portion 1110 and the second guide portion 1120 are the portion facing the lower surface and the portion facing the upper surface of the printed medium 12 to be discharged, respectively. The third guide portion and the fourth guide portion are the portion facing one end face in the width direction of the printed medium 12 and the portion facing the other end face, respectively. The tearing assist portion 1121 described above is a portion of the second guide portion 1120 that has a downwardly convex ridge line provided along the X direction (width direction of the printed medium 12) on the surface facing the printed medium 12 to be discharged. The tearing assist part 1121 may be shaped to allow the user of the printer 10 to tear the printing medium 12 at the perforation position 1201 when the printing medium 12 discharged from the device housing 11 is torn off, and may be referred to as a blade, cutting part, cutter part, etc. The tearing assist part 1121 is not limited to a part integrally formed with the second guide part 1120, but may also be a part that can be attached to the second guide part 1120, such as a cutting blade.

[0015] In other words, a user of the printer 10 can easily cut off the printed medium 12 along the perforations 1202 by, for example, moving one end of the printed medium 12 discharged from the medium discharge port 1101 of the device housing 11 upwards and pressing it against the tearing assist unit 1121.

[0016] Some of the printers 10 described above omit the means for automatically aligning the perforation position 1201 of the printing medium 12 with the cutting position Y0 in the transport path, for example, in order to make the device smaller and lighter and reduce manufacturing costs. In printers 10 that do not have means for automatic alignment, the alignment of the perforation position 1201 of the printing medium 12 with the cutting position Y0 in the transport path is performed visually, for example, when the user places the roll of printing medium 12 into the device housing 11. Therefore, if the printer 10 does not have means for automatically aligning the perforation position 1201 of the printing medium 12 with the cutting position Y0 in the transport path, the alignment process is time-consuming. In particular, as illustrated in Figures 1B and 2, if the portion of the second guide section 1120 that protrudes downstream in the transport direction (positive Y direction) from the tearing assist section 1121 becomes an obstruction, making it difficult for the user to visually grasp the position of the tearing assist section 1121, accurate alignment becomes difficult. Below, a jig to resolve such alignment problems and a method of alignment using the jig will be described.

[0017] Figure 3 is a diagram (1) illustrating an example of the configuration of a jig according to one embodiment. Figure 4 is a diagram (2) illustrating an example of the configuration of a jig according to one embodiment. Figure 3A schematically shows a cross-sectional view illustrating an example of the configuration of jig 1 when jig 1 is attached to printer 10 having the cross-sectional configuration illustrated in Figure 1B. Figure 3B shows a block diagram illustrating an example of the configuration of the perforation detection device 2 included in jig 1. Figure 4 shows a top view and a bottom view illustrating the relationship between the cutting position Y0 in the transport path of printer 10 and the opening region 303 of the slit 302 formed in the positioning member 3 of jig 1.

[0018] The jig 1 according to this embodiment includes a perforation detection device 2 and a positioning member 3. The perforation detection device 2 is a device that optically detects the perforations 1202 formed in the printed medium 12 discharged from the medium discharge port 1101 of the device housing 11. The positioning member 3 is a member that arranges the perforation detection device 2 in the vicinity of the medium discharge port 1101 of the device housing 11 so that the perforations 1202 of the printed medium 12 can be detected when the perforation position 1201 of the printed medium 12 is within a predetermined range including the cutting position Y0 in the conveyance path. The positioning member 3 has a device holding portion 300 that holds the perforation detection device 2 and an insertion portion 320 that is inserted into the medium discharge port 1101 of the device housing 11 to fix the relative position of the positioning member 3 with respect to the medium discharge port 1101 of the device housing 11.

[0019] As illustrated in FIG. 3B, the perforation detection device 2 includes a control unit 200, a photosensor 210, and an LED (light emitting diode) lamp 220. The photosensor 210 can be a well-known reflection type photosensor including a light emitting element and a light receiving element, and more preferably a diffuse reflection type photosensor. The control unit 200 determines whether or not the perforation position 1201 (perforations 1202) of the printed medium 12 is detected based on the output signal of the photosensor 210, and controls the lighting and extinguishing of the LED lamp 220 based on the determination result. The control unit 200 can be, for example, an FPGA (Field Programmable Gate Array), an ASIC (Application Specific Integrated Circuit), or other programmable semiconductor device. The perforation detection device 2 may further include a battery 230 and a switch 240 for operating the control unit 200, the photosensor 210, and the LED lamp 220.

[0020] The positioning member 3 is made of a resin material with low transmittance of light emitted from the photosensor 210 and ambient light. In one example, the device holding portion 300 and the insertion portion 320 are integrally formed. The positioning member 3 may be shaped such that when the insertion portion 320 is inserted into the media outlet 1101 by a predetermined amount from the outside of the device housing 11, the device holding portion 300 abuts against the second guide portion 1120 of the device housing 11, fixing the relative position of the positioning member 3 with respect to the device housing 11. The insertion portion 320 of the positioning member 3 is inserted into the media outlet 1101 by passing between the printing medium 12 and the second guide portion 1120 above it, as illustrated in Figure 3A. The positioning member 3 shown in the example has a surface on the device holding portion 300 facing the second guide portion 1120 that connects to the upper surface of the insertion portion 320 at the boundary between the device holding portion 300 and the insertion portion 320, and is an abutment surface 305 that is inclined to be displaced downstream in the transport direction as it extends upward. By abutting the abutment surface 305 of the device holding portion 300 against the second guide portion 1120 of the device housing 11, it is possible to prevent the insertion portion 320 from being pushed into the media discharge port 1101 more than necessary when attaching the jig 1 to the printer 10. Therefore, for example, it is possible to prevent a large load from being applied to the tearing assist portion 1121 of the device housing 11 from the corner where the abutment surface 305 of the device holding portion 300 and the upper surface of the insertion portion 320 connect, which could cause damage to the tearing assist portion 1121.

[0021] In the device holding portion 300 of the positioning member 3, a recess 301 into which the perforation detection device 2 can be fitted from above and a slit 302 that leads from the bottom surface of the recess 301 to the lower surface of the positioning member 3 are formed. The outer shape of the perforation detection device 2 and the recess 301 of the positioning member 3 are formed in a fitting shape such that the surfaces (measurement surfaces 251 in FIGS. 5A and 5B) that serve as the light emitting surface and the light receiving surface of the photosensor 210 in the perforation detection device 2 face the bottom surface of the recess 301. The slit 302 is formed such that the light emitting surface and the light receiving surface of the photosensor 210 in the perforation detection device 2 face the printed medium 12 through the slit 302. Further, the slit 302 is formed such that the opening region 303 on the lower surface side of the positioning member 3 when the relative position of the positioning member 3 with respect to the device housing 11 described above is fixed includes the cutout position Y0 in the conveyance path. The dimension T in the conveyance direction (Y direction) in the opening region 303 is set based on the allowable range of alignment between the cutout position Y0 in the conveyance path and the perforation position 1201 of the printed medium 12. Therefore, in the following description, the dimension T in the conveyance direction (Y direction) in the opening region 303 is referred to as the allowable range of alignment T. The jig 1 is configured such that the perforation detection device 2 detects the perforation position 1201 (perforation 1202) when the perforation position 1201 of the printed medium 12 is within the allowable range of alignment T that includes the cutout position Y0 in the conveyance path. The allowable range T can be, for example, about 1 mm to 3 mm. Note that, as illustrated in FIG. 4, the positioning member 3 may be formed with a notch 309 that can be used for simple alignment of the visual perforation position 1201 and the cutout position Y0 at a position where the slit 302 (opening region 303) at the end surface in the width direction is extended in the width direction.

[0022] Figure 5 illustrates a method for aligning perforations using a jig according to one embodiment. Figure 5A schematically shows the optical path within the slit 302 when the perforation position 1201 of the printing medium 12 in a cross section parallel to the YZ plane is not within the allowable alignment range T. Figure 5B schematically shows an example of the optical path within the slit 302 when the perforation position 1201 of the printing medium 12 in a cross section parallel to the YZ plane is within the allowable alignment range T.

[0023] When aligning the perforation position 1201 of the printing medium 12 with the cutting position Y0 in the transport path using the jig 1 described above, the user roughly aligns the jig 1 by visual inspection before attaching it to the device housing 11. At this time, the perforation position 1201 (perforation 1202) of the printing medium 12 may be outside the allowable range T which includes the cutting position Y0, as shown in Figure 5A. When the perforation position 1201 is outside the allowable range T, a portion of the upper surface of the printing medium 12 in which the perforation 1202 is not formed is exposed within the opening region 303 (see Figure 4) of the slit 302 on the lower surface of the positioning member 3. At this time, the upper surface of the exposed portion is substantially flat. Therefore, the light emitted from the measuring surface 251 of the perforation detection device 2 (more specifically, the light-emitting surface of the photosensor 210) is reflected and diffused on the upper surface (flat surface) of the printing medium 12 and received by the measuring surface 251 of the perforation detection device 2 (more specifically, the light-receiving surface of the photosensor 210). On the other hand, if the perforation position 1201 (perforation 1202) of the printing medium 12 is within the allowable range T including the cutting position Y0, as shown in Figure 5B, then a portion of the light emitted from the measuring surface 251 of the perforation detection device 2 is reflected and diffused within the through-holes formed in the printing medium 12 as perforations 1202 and received by the measuring surface 251 of the perforation detection device 2. When perforations 1202 are formed on a portion of the printing medium 12 exposed within the opening region 303 (see Figure 4) of the slit 302 on the lower surface of the positioning member 3, there is a difference in the amount of light received by the measuring surface 251 (light-receiving surface of the photosensor 210) of the perforation detection device 2. Specifically, the amount of light when perforations 1202 are formed on a portion of the printing medium 12 exposed within the opening region 303 is lower than the amount of light when perforations are not formed. Therefore, the control unit 200 of the perforation detection device 2 can determine whether the perforation position 1201 of the printing medium 12 is within the allowable range T, which includes the cutting position Y0, based on the change in the amount of light received by the light-receiving surface of the photosensor 210.

[0024] Furthermore, the control unit 200 of the perforation detection device 2 can, for example, light up the LED lamp 220 when it determines that the perforation position 1201 of the printing medium 12 is within the allowable range T which includes the cutting position Y0. For example, if the user of the printer 10 gradually shifts the printing medium 12 shown in Figure 5A downstream in the transport direction (+Y direction), and the perforation position 1201 of the printing medium 12 moves within the allowable range T, the control unit 200 lights up the LED lamp 220. Therefore, the user of the printer 10 can determine whether the perforation position 1201 of the printing medium 12 is within the allowable range T which includes the cutting position Y0 by whether or not the LED lamp 220 of the perforation detection device 2 is lit. Thus, even if it is difficult for the user of the printer 10 to visually inspect the tearing assist part 1121 at the cutting position Y0 in the transport path, the user can easily and accurately align the perforation position 1201 of the printing medium 12 with the cutting position Y0. Furthermore, by using the jig 1 of this embodiment, the user of the printer 10 can, for example, complete the alignment of the perforation position 1201 and the cutting position Y0 of the printing medium 12 in a single operation. This prevents, for example, deterioration such as folding or wrinkling of the printing medium 12 due to performing the alignment operation multiple times, and prevents an increase in the amount of printing medium 12 that has to be discarded due to deterioration.

[0025] Furthermore, the slit 302 in the positioning member 3 only needs to be shaped in such a way that it can receive light reflected from within a predetermined range (e.g., tolerance range T) of the printing medium 12, including the cutting position Y0 in the transport path, on the light-receiving surface of the photosensor 210, and is not limited to a specific shape.

[0026] Although embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and various improvements and modifications are possible without departing from the spirit of the invention.

[0027] For example, the perforation detection device 2 of the jig 1 is not limited to a device powered by a battery 230, which may be part of the device itself. The operating power of the perforation detection device 2 may be supplied, for example, from the printer 10 to which the jig 1 is applied. The perforation detection device 2 may also be connected to the printer 10, or an information processing device such as a smartphone, tablet computer, or other computer, for example, by a dedicated transmission cable or short-range wireless communication such as Bluetooth Low Energy®. In this example, the printer 10 or information processing device connected to the perforation detection device 2 executes an application that notifies the user whether the perforation position 1201 of the printed medium 12 is within an acceptable range T including the cutting position Y0, in response to changes in the output signal (amount of received light) of the photosensor 210. The photosensor 210 in the perforation detection device 2 of the jig 1 is not limited to having the light-emitting surface and light-receiving surface described above, but may, for example, have only a light-receiving surface. In this example, the photosensor 210 receives ambient light introduced into the slit 302 from outside the jig 1 at its light-receiving surface and outputs an output signal corresponding to the amount of light received. Furthermore, the LED lamp 220 in the perforation detection device 2 of the jig 1 is merely an example of a notification unit (notification means) that informs the user of the printer 10 whether the perforation position 1201 of the printing medium 12 is within an acceptable range T including the cutting position Y0 in the transport path. The perforation detection device 2 may also be equipped with a sound-emitting device as a notification unit instead of, or together with, the LED lamp 220. Note that the perforation detection device 2 in the jig 1 according to the above embodiment only needs to be equipped with the light-receiving element of the photosensor 210, and other components may be replaced with hardware and software of an information processing device separate from the jig 1.

[0028] Furthermore, for example, when adjusting the position of the printing medium 12 in the transport direction with the jig 1 attached to the media outlet 1101 of the device housing 11, as described above, the lower surface of the positioning member 3 may be processed to reduce friction with the printing medium 12. Also, the width of the positioning member 3 (the dimension in the X direction when attached to the device housing 11) may be smaller than the width of the printing medium 12. If the width of the positioning member 3 is smaller than the width of the printing medium 12, for example, a notch 309 may be provided on the end face of the positioning member 3 in the width direction, as shown in Figure 4. As described above, the notch 309 is formed as a groove that is displaced toward the other end face side (in other words, the direction in which the slit 302 was formed) at a position where the slit 302 on the end face of the positioning member 3 is extended in the width direction. By forming such a notch 309, for example, a user can easily align the notch 309 of the positioning member 3 with the perforation position 1201 of the printing medium 12 by visual inspection. Furthermore, the jig 1 is not limited to a configuration in which the perforation detection device 2 and the positioning member 3 are separate components. The jig 1 may also be configured such that the positioning member 3 is the device housing of the perforation detection device 2.

[0029] Furthermore, for example, if the jig 1 is dedicated to a specific model of printer 10, the printer 10 may be provided with a storage compartment for the jig 1. Moreover, for example, the printer 10 to which the jig 1 is applied may be capable of transporting the printable medium 12 downstream in the transport direction (+Y direction) and transporting it upstream in the transport direction (-Y direction). In the case of a printer 10 that is only capable of transporting the printable medium 12 in the +Y direction, the printable medium 12 discharged from the media outlet 1101 when aligning using the jig 1 will be cut off and discarded, or used for another purpose. In contrast, in the case of a printer 10 that is also capable of transporting the printable medium 12 in the -Y direction, the printable medium 12 discharged from the media outlet 1101 when aligning can be effectively utilized by transporting the printable medium 12 in the -Y direction by the interval L of the perforation position 1201 after alignment. [Explanation of Symbols]

[0030] 1. Jig 2. Perforation detection device 200 Control Unit 210 Photosensor 220 LED lamps 230 batteries 240 switches 3 Positioning member 300 Device holding part 301 Recess 302 Slit 303 Opening area 305 Buttock surface 320 Insertion part 10 Printers 11. Device housing 1101 Media outlet 1110 First Information Desk 1120 Second Information Desk 1121 Cleavage assisting part 12 Printing media 1201 Perforation position 1202 Perforations

Claims

1. A jig used for aligning the position of the perforations on a printing medium that is transported by the transport section of a printing device and discharged from the discharge port of the printing device with a tearing assist section provided in the transport path of the printing device to assist the user of the printing device in tearing along the perforations, A perforation detection device including a light-receiving element, A positioning member that is detachably attached to the printing apparatus and, when mounted on the printing apparatus, holds the perforation detection device in a position where the light receiving element can receive light reflected within a predetermined range including the cutting position in the transport path where the tearing assist part is provided, A jig characterized by having the following features.

2. The positioning member has a device holding portion for holding the perforation detection device and an insertion portion for inserting from the outside of the printing device between the tearing assist portion and the printing medium discharged from the discharge port. The device holding portion has a contact surface that abuts against the printing device to define the position of the positioning member in the transport direction of the printing medium. The jig according to claim 1.

3. The perforation detection device further includes a light-emitting element that emits light to be received by the light-receiving element, The positioning member has a slit for reflecting light emitted from the light-emitting element onto the printing medium and receiving it with the light-receiving element, and the opening region on the side of the slit that is in contact with the printing medium is shaped to expose the predetermined range including the cut position on the printing medium. The jig according to claim 1.

4. The perforation detection device is, A control unit that determines whether the position of the perforation on the printing medium is within the predetermined range including the cutting position based on the output signal of the light-receiving element, The system further includes a notification unit that notifies the user of the jig of the determination result made by the control unit, The notification unit is a light-emitting element positioned in a location visible to the user when the jig is attached to the printing device. The jig according to any one of claims 1 to 3.

Images