Printer device

Abstract

To provide a printer device that is able to separate, with a simple constitution, printing paper adhering to a platen roller.SOLUTION: A label printer (a printer device) includes: a thermal head (a printing unit) that performs printing on label paper (printing paper) having no mount, whose surface is a printing surface and whose back has an adhesive layer; a platen roller (a conveyance unit) installed at a position opposite the thermal head and that draws out one end of a roll of paper, in which the label paper is wrapped around itself, by its being rotated and driven and conveys the roll of paper to the thermal head; and a reciprocation control unit (a reciprocation unit) by which, when an instruction to start printing is acquired, a nipped position of the label paper nipped between the thermal head and the platen roller is reciprocated between a first position on a downstream side in a conveying direction of the label paper and a second position on an upstream side from the first position in the conveying direction.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The embodiment of the present invention relates to a printer device. [Background technology]

[0002] In the case of print paper without a backing (linerless label paper) with a print surface on the front and an adhesive layer on the back, the print paper after printing has been made to wait in a state where it is sandwiched between the print head and the platen roller. If it waits in this state, there is a risk that the adhesive layer on the back side of the print paper will stick to the surface of the platen roller, and the print paper will remain wrapped around the platen roller when the next printing is performed. If the print paper sticks in this way, there is a risk of the paper jamming, so an improvement was desired.

[0003] To solve these problems, for example, a configuration has been disclosed in which a drive roller and a driven roller opposing the drive roller are provided upstream of the platen roller, and the drive roller is rotated before printing begins to pull the label paper upstream and peel off the printing paper stuck to the platen roller (for example, Patent Document 1).

[0004] However, the printer disclosed in Patent Document 1 has a problem in that the structure becomes complicated because it is necessary to install a drive roller. Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to provide a printer device that is capable of separating printing paper stuck to a platen roller with a simple configuration. [Means for solving the problem]

[0006] The printer device of the embodiment includes a printing unit, a conveying unit, A standby position moving unit;The printer includes a reciprocating unit. The printing unit prints on a print paper with no backing, which has a print surface on the front side and an adhesive layer on the back side. The transport unit is installed opposite the printing unit and is driven to rotate to pull out one end of the roll of print paper and transport it to the printing unit. The standby position movement unit transports the leading edge of the print paper to a standby position downstream in the transport direction of the print paper when no instruction to start printing is given for a first predetermined time after printing is completed. The reciprocating section is Within a second predetermined time after the standby position moving unit transports the leading edge of the print paper to the standby position When an instruction to start printing is obtained, the clamping position of the print paper sandwiched between the printing unit and the conveying unit is moved back and forth between a first position downstream in the conveying direction of the print paper and a second position upstream in the conveying direction from the first position. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a cross-sectional view showing an example of the internal structure of a label printer according to an embodiment. [Diagram 2] FIG. 2 is a detailed cross-sectional view of the periphery of the platen roller of the label printer. [Diagram 3] FIG. 3 is a hardware block diagram showing an example of the hardware configuration of the label printer according to the embodiment. [Figure 4] FIG. 4 is a functional block diagram showing an example of the functional configuration of the label printer according to the embodiment. [Diagram 5] FIG. 5 is a diagram showing an example of the flow of the printing operation of the label printer according to the embodiment. [Figure 6] FIG. 6 is a flowchart showing an example of the flow of printing processing in the label printer according to the embodiment. [Figure 7] FIG. 7 is a flowchart showing an example of the flow of printing processing in a label printer according to a modified embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a label printer according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0009] (Overall configuration of label printer) A schematic configuration of a label printer 10 according to the present embodiment will be described with reference to Fig. 1. Fig. 1 is a cross-sectional view showing an example of the internal structure of a label printer according to the embodiment. The label printer 10 is an example of a printer device in the present disclosure.

[0010] The label printer 10 performs printing on label paper 30, an example of print paper, while pulling out the label paper 30 from roll paper 31, which is wound in a roll around a roll core 32. A front surface 301 of the label paper 30 is the print surface, and a back surface 302 is an adhesive layer. In other words, the label paper 30 is a so-called linerless label paper that does not have a backing paper (liner). The label paper 30 is an example of print paper in this disclosure.

[0011] The label printer 10 includes a transport roller 12, a platen roller 13, a thermal head 16, a cutter 18, and a paper evacuation section 19 inside the housing.

[0012] The transport roller 12 is a free roller that forms a transport path that guides the label paper 30 pulled out from the roll paper 31 in the direction of the arrow C toward the thermal head 16.

[0013] The platen roller 13 is an example of a conveying section in this disclosure, and by receiving the driving force of the platen roller drive motor 15, the platen roller 13 rotates around the axis 14 in the direction of arrow A, thereby pulling out label paper 30 from one end of the roll paper 31 in the direction of arrow B. The pulled-out label paper 30 is conveyed towards the thermal head 16. The platen roller 13 also rotates around the axis 14 in the direction opposite to arrow A, thereby conveying the label paper 30 in the direction opposite to arrow C. Conveyance in the opposite direction will be described later.

[0014] The thermal head 16 is an example of a printing unit in this disclosure, and is in close contact with the platen roller 13. The label paper 30 is conveyed toward the discharge port 17 while being sandwiched between the thermal head 16 and the platen roller 13. The thermal head 16 has a structure in which multiple heating elements are aligned, and performs printing on the surface 301 of the label paper 30 sandwiched between the thermal head 16 and the platen roller 13 by heating the heating elements that correspond to the printing pattern.

[0015] The cutter 18 cuts the label paper 30 that has been printed and discharged from the discharge port 17.

[0016] The paper evacuation section 19 is an area for temporarily evacuating label paper 30 that has become slack in the area between the transport roller 12 and the platen roller 13 when the label paper 30 on which printing has been completed is backfed, i.e., moved backward, upstream of the transport path.

[0017] (Main components of a label printer) A detailed structure of the periphery of the platen roller 13 of the label printer 10 will be described with reference to Fig. 2. Fig. 2 is a detailed cross-sectional view of the periphery of the platen roller of the label printer.

[0018] A paper guide 20 is provided downstream (Y-axis positive side) of the platen roller 13. The paper guide 20 guides the label paper 30 from the platen roller 13 to the cutter 18. A gap 21 is formed between the paper guide 20 and the platen roller 13 so as not to interfere with the rotation of the platen roller 13.

[0019] Meanwhile, a platen guide 22 is provided on the upstream side (Y-axis negative side) of the platen roller 13. The platen guide 22 guides the back-fed label paper 30 to the paper evacuation section 19.

[0020] (Label printer hardware configuration) The hardware configuration of the label printer 10 will be described with reference to Fig. 3. Fig. 3 is a hardware block diagram showing an example of the hardware configuration of the label printer according to the embodiment.

[0021] As shown in FIG. 3, the label printer 10 includes a central processing unit (CPU) 401, a read only memory (ROM) 402, a random access memory (RAM) 403, and a storage unit 41. The CPU 401 is the main controller. The ROM 402 stores various fixed data, various tables, a printer driver, and the like. The RAM 403 functions as a work memory by expanding a control program and a printer driver when the CPU 401 performs various processes. The storage unit 41 stores a control program P executed by the CPU 401. The CPU 401, the ROM 402, the RAM 403, and the storage unit 41 are connected to each other via an internal bus 43. The CPU 401, the ROM 402, and the RAM 403 constitute a control unit 40. That is, the control unit 40 executes various control processes by the CPU 401 expanding the control program P stored in the storage unit 41 and the various data stored in the ROM 402 into the RAM 403 and running them.

[0022] The storage unit 41 is configured with a non-volatile memory such as a hard disk drive (HDD) or a flash memory that retains stored information even when the power is turned off, and stores the control program P executed by the control unit 40. The storage unit 41 also stores print data templates and the like (not shown in FIG. 3).

[0023] The control program P is a program that controls the overall operation of the label printer 10 .

[0024] The control unit 40 is also connected to peripheral devices, such as a power switch 44, an operation device 45, a display device 46, a scanner 47, a communication interface 48, a platen roller drive motor 15, a thermal head 16, and a cutter 18, via an internal bus 43 and a peripheral device controller 42. The peripheral device controller 42 receives instructions from the control unit 40 and controls the operations of these peripheral devices.

[0025] The power switch 44 is a switch for turning the main power of the label printer 10 on and off.

[0026] The operation device 45 is an operation device that issues various operational instructions to the label printer 10. The operation device 45 is, for example, a touch panel or a mechanical switch.

[0027] The display device 46 displays the operating status and print data of the label printer 10. The display device 46 is, for example, a liquid crystal panel.

[0028] The scanner 47 reads information such as a product code registered in a barcode or the like, and causes the label printer 10 to generate print data. The scanner 47 is, for example, a barcode reader.

[0029] The communication interface 48 communicably connects the label printer 10 to a server device (not shown) etc. The label printer 10 obtains print data from the server device etc. via the communication interface 48.

[0030] The platen roller drive motor 15 is a motor that rotates the shaft center 14 of the platen roller 13 by a predetermined angle in a predetermined direction. The platen roller drive motor 15 is, for example, a stepping motor. The platen roller drive motor 15 rotates in a direction instructed by the control unit 40 of the label printer 10 by a specified angle. More specifically, the platen roller drive motor 15 rotates by an angle according to the number of steps instructed by the control unit 40. For example, if the platen roller drive motor 15 rotates an angle θ in one step, when an instruction to rotate n steps is received, the platen roller drive motor 15 rotates an angle nθ. In this case, if the roller radius of the platen roller 13 is r, the conveyance amount k of the label paper 30 is calculated as k=rnθ.

[0031] The thermal head 16 has a structure in which multiple heating elements are aligned, and prints on the label paper 30 held between the thermal head 16 and the platen roller 13 by heating the heating elements that correspond to the print pattern.

[0032] The cutter 18 is disposed near the discharge port 17 and cuts the label paper 30 upon receiving instructions from the CPU 401 .

[0033] (Label printer functional configuration) The functional configuration of the label printer 10 will be described with reference to Fig. 4. Fig. 4 is a functional block diagram showing an example of the functional configuration of the label printer according to the embodiment.

[0034] The control unit 40 of the label printer 10 executes the control program P to realize a print data acquisition unit 51, a feed control unit 52, a reciprocating movement control unit 54, a print control unit 55, and a paper cutting control unit 56 shown in FIG. 4.

[0035] The print data acquisition unit 51 acquires print data to be printed on the label paper 30. Specifically, the print data acquisition unit 51 acquires print data corresponding to the product code, etc. read by the scanner 47. The print data acquisition unit 51 may also acquire print data from a server device (not shown) via the communication interface 48.

[0036] The feed control unit 52 conveys (feeds) the label paper 30 by controlling the rotation direction of the platen roller drive motor 15. The feed control unit 52 further includes a cutting position conveying unit 521, a standby position conveying unit 522, a printing conveying unit 523, and a printing start position conveying unit 524.

[0037] The cutting position transport section 521 transports the label paper 30 after printing to the position of the cutter 18.

[0038] If there is no instruction to start printing for a predetermined time, the standby position transport section 522 transports the label paper 30 to the standby position. The standby position transport section 522 is an example of a standby position movement section in this disclosure.

[0039] The print transport unit 523 transports the label paper 30 when printing is performed on the label paper 30.

[0040] The print start position transport unit 524 transports the label paper 30 to the print start position after the cutter 18 has cut the label paper 30 on which printing has been completed. The print start position transport unit 524 also transports the label paper 30 to the print start position after the reciprocation control unit 54, described below, causes the label paper 30 to move back and forth. The print start position transport unit 524 sometimes rotates the platen roller 13 counterclockwise to transport the label paper 30 to the print start position, and sometimes rotates the platen roller 13 clockwise to transport the label paper 30 to the print start position. The print start position transport unit 531 is an example of a print start position movement unit in this disclosure.

[0041] When receiving an instruction to start printing, the reciprocating movement control unit 54 controls the rotation direction of the platen roller drive motor 15 to move the clamping position of the label paper 30 clamped between the thermal head 16 and the platen roller 13 to a first position downstream in the conveying direction of the label paper 30 (positive side of the Y axis), and then reciprocates the clamping position that has been moved to the first position to a second position upstream in the conveying direction from the first position (negative side of the Y axis). The reciprocating movement control unit 54 repeats this reciprocating movement a predetermined number of times. The reciprocating movement control unit 54 is an example of a reciprocating movement unit in this disclosure.

[0042] The print control unit 55 controls the operation of the thermal head 16 to print the print data on the label paper 30 .

[0043] After the cutting position transport unit 521 transports the label paper 30 after printing has been completed to the position of the cutter 18, the paper cutting control unit 56 drives the cutter 18 to cut the label paper 30.

[0044] (Label printer operation) The flow of the printing operation of the label printer 10 will be described with reference to Fig. 5. Fig. 5 is a diagram showing an example of the flow of the printing operation of the label printer according to the embodiment. Fig. 5 shows states 100 to 105 of the label printer 10 over time.

[0045] (Explanation of State 100) State 100 represents a state in which, after printing on the label paper 30 is completed, the cutting position transport unit 521 rotates the platen roller 13 in the direction of arrow A to transport the label paper 30 to the cutting position of the cutter 18. In this state, the label paper 30 is cut by the cutter 18. Note that the horizontal distance from the axis 14 of the platen roller 13 to the cutter 18 is La. Therefore, the cutting position transport unit 521 transports the label paper 30, on which printing has been completed, downstream by at least the distance La.

[0046] (Explanation of State 101) State 101 represents a state in which the print start position transport unit 531 rotates the platen roller 13 in the direction of arrow D, thereby backfeeding the label paper 30 cut by the cutter 18 and transporting it to the print start position. At this time, the print start position of the label paper 30 moves to the position where it is sandwiched between the platen roller 13 and the thermal head 16. The leading edge Xa of the label paper is then positioned downstream from the position where it is sandwiched between the platen roller 13 and the thermal head 16.

[0047] (Explanation of State 102) In state 101, if there is no instruction to start printing for a predetermined time, the standby position transport unit 522 moves the label paper 30 to the standby position by rotating the platen roller 13 in the direction of arrow A. At this time, the horizontal distance from the axis 14 of the platen roller 13 to the leading edge Xa of the label paper 30 is Lb. The distance Lb is set so that the leading edge Xa of the label paper 30 that has moved to the standby position passes at least the gap 21 (see FIG. 2) and reaches the paper guide 20. This is because if the amount of the leading edge Xa of the label paper 30 that is fed out from the clamping position at the standby position is small, when the platen roller 13 rotates in the direction of arrow A, the label paper 30 attached to the platen roller 13 will rotate together with the platen roller 13, and the leading edge Xa of the label paper 30 may pass through the gap 21 and deviate from the area guided by the paper guide 20.

[0048] (Description of State 103) When a command to start printing is received in state 102, the reciprocation control unit 54 rotates the platen roller 13 in the direction of arrow A, thereby moving the clamping position Xb of the label paper 30 a distance Lc in the horizontal direction from the axis 14 of the platen roller 13. At this time, the position to which the clamping position Xb of the label paper 30 moves is the first position in this disclosure.

[0049] (Description of State 104) Next, the reciprocating movement control unit 54 rotates the platen roller 13 in the direction of the arrow D to move the first position (clamping position Xb) of the label paper 30 in state 103 by a distance (Lc+Ld) in the horizontal direction. As a result, the first position of the label paper 30 in state 103 moves upstream beyond the clamping position between the platen roller 13 and the thermal head 16. At this time, the position to which the first position of the label paper 30 moves is the second position in this disclosure. Then, the label printer 10 alternately repeats states 103 and 104 a predetermined number of times. The predetermined number is, for example, two times, but may be set appropriately. Furthermore, the distances Lb and Ld are set to satisfy Lb>Ld so that the leading edge Xa of the label paper 30 does not pass the contact position between the platen roller 13 and the thermal head 16 and fall off to the upstream side when the label paper 30 is moved to the second position.

[0050] That is, the amount of movement (horizontal distance) of the label paper 30 by the reciprocating movement control unit 54 is, in order of time, Lc downstream, distance (Lc+Ld) upstream, distance (Lc+Ld) downstream, distance (Lc+Ld) upstream, .... The specific amount of movement may be set as appropriate, but it is desirable to set it so that, for example, the leading edge of the label paper 30 does not enter the gap 21 described above or the gap between the platen roller 13 and the platen guide 22 when it moves back and forth. For example, the amount of movement is set to about ¼ of the diameter of the platen roller 13.

[0051] (Explanation of State 105) By alternately repeating states 103 and 104 a predetermined number of times, the label paper 30 that had been stuck to the platen roller 13 is detached from the platen roller 13. Then, the print start position transport unit 531 rotates the platen roller 13 in the direction of arrow A, thereby transporting the label paper 30 to the print start position.

[0052] (Flow of processing performed by a label printer) The flow of processing performed by the label printer 10 will be described with reference to Fig. 6. Fig. 6 is a flow chart showing an example of the flow of printing processing by the label printer according to the embodiment.

[0053] The print control unit 55 prints the print data on the label paper 30 being transported by the print transport unit 523 (step S11).

[0054] The print control unit 55 determines whether printing is complete (step S12). If it is determined that printing is complete (step S12: Yes), the process proceeds to step S13. On the other hand, if it is determined that printing is not complete (step S12: No), the process returns to step S11 and continues printing.

[0055] When it is determined in step S12 that printing is complete, the cutting position transport unit 521 transports the label paper 30 on which printing has been completed to the position of the cutter 18 (step S13).

[0056] The paper cutting control unit 56 causes the cutter 18 to cut the label paper 30 (step S14).

[0057] The print start position transport unit 524 transports the label paper 30 to the print start position (step S15).

[0058] The standby position transport unit 522 determines whether or not a print start instruction has been received for a predetermined time (step S16). If it is determined that a print start instruction has not been received for a predetermined time (step S16: Yes), the process proceeds to step S17. On the other hand, if it is not determined that a print start instruction has been received for a predetermined time (step S16: No), that is, if the next print start instruction is received before the predetermined time has elapsed, the process returns to step S11.

[0059] If it is determined in step S16 that no instruction to start printing has been received for a predetermined period of time, the standby position transport section 522 transports the label paper 30 to the standby position (step S17).

[0060] The print data acquisition unit 51 determines whether the print data has been acquired within a predetermined time (step S18). If it is determined that the print data has been acquired within the predetermined time (step S18: Yes), the process proceeds to step S19. On the other hand, if it is not determined that the print data has been acquired within the predetermined time (step S18: No), the label printer 10 ends the process in Fig. 6. Note that the predetermined time in step S16 and the predetermined time in step S18 do not need to be the same, and are set independently.

[0061] When it is determined in step S18 that the print data has been acquired, the reciprocating movement control unit 54 moves the clamping position of the label paper 30 between the thermal head 16 and the platen roller 13 to a first position downstream in the conveying direction of the label paper 30 (positive side of the Y axis) (step S19).

[0062] Next, the reciprocating movement control unit 54 moves the clamping position that has been moved to the first position to a second position on the upstream side in the conveying direction (Y-axis negative side) (step S20).

[0063] The reciprocating movement control unit 54 determines whether the movement of the label paper 30 to the downstream side and the upstream side has been repeated a predetermined number of times (step S21). If it is determined that the movement to the downstream side and the upstream side has been repeated a predetermined number of times (step S21: Yes), the process proceeds to step S22. On the other hand, if it is not determined that the movement to the downstream side and the upstream side has been repeated a predetermined number of times (step S21: No), the process returns to step S19.

[0064] If it is determined in step S21 that the downstream and upstream movements have been repeated a predetermined number of times, the print start position transport unit 524 transports the label paper 30 to the print start position (step S22). After that, the process returns to step S11 and printing is performed.

[0065] As described above, the label printer 10 (printer device) of the embodiment includes a thermal head 16 (printing unit) that prints on a linerless label paper 30 (printing paper) having a print surface on the front side 301 and an adhesive layer on the back side 302, a platen roller 13 (transport unit) that is installed in a position opposite the thermal head 16 and is driven to rotate to pull out one end of the roll paper 31 on which the label paper 30 is wound in a roll shape and transport it to the thermal head 16, and a reciprocating movement control unit 54 (reciprocating movement unit) that, when a command to start printing is obtained, reciprocates the clamping position of the label paper 30 sandwiched between the thermal head 16 and the platen roller 13 between a first position downstream in the transport direction of the label paper 30 and a second position upstream in the transport direction from the first position. Therefore, the label paper 30 stuck to the platen roller 13 can be detached from the platen roller 13 with a simple configuration.

[0066] Furthermore, in the label printer 10 (printer device) of the embodiment, the first position is downstream of the clamping position in the transport direction of the label paper 30, and the second position is upstream of the clamping position in the transport direction of the label paper 30. Therefore, the label paper 30 stuck to the platen roller 13 can be reliably pulled off.

[0067] The label printer 10 (printer device) of the embodiment further includes a print start position transport unit 524 (print start position moving unit) that moves the label paper 30 moved by the reciprocation control unit 54 (reciprocation unit) to the print start position. Therefore, after the label paper 30 stuck to the platen roller 13 is detached, the label paper 30 can be automatically moved to the print position.

[0068] Furthermore, the label printer 10 (printer device) of the embodiment further includes a standby position transport unit 522 (standby position moving unit) that, after printing is completed, transports the leading edge of the label paper 30 to a standby position downstream in the transport direction of the label paper 30. Therefore, when the label paper 30 is moved back and forth to separate the label paper 30 stuck to the platen roller 13, it is possible to prevent the moved label paper 30 from entering the gap 21 between the platen roller 13 and the paper guide 20 and causing a jam of the label paper 30.

[0069] (Modification of the embodiment) Next, we will explain a modified example of the above-mentioned label printer 10. In the modified example of the label printer 10, when print data is acquired while the label paper 30 is in the standby position, the reciprocation control unit 54 performs a reciprocating operation on the label paper 30 that is different from that in the embodiment.

[0070] Specifically, the reciprocating movement control unit 54 moves the clamping position of the label paper 30 sandwiched between the thermal head 16 and the platen roller 13 to a first position downstream in the conveying direction of the label paper 30, and then moves the label paper 30 to the printing start position.

[0071] The flow of processing performed by the label printer 10 according to the modified embodiment will be described with reference to Fig. 7. Fig. 7 is a flow chart showing an example of the flow of printing processing by the label printer according to the modified embodiment.

[0072] The print control unit 55 prints print data on the label paper 30 being transported by the print transport unit 523 (step S31).

[0073] The print control unit 55 determines whether printing is complete (step S32). If it is determined that printing is complete (step S32: Yes), the process proceeds to step S33. On the other hand, if it is determined that printing is not complete (step S32: No), the process returns to step S31 and continues printing.

[0074] When it is determined in step S32 that printing is complete, the cutting position transport unit 521 transports the label paper 30 on which printing has been completed to the position of the cutter 18 (step S33).

[0075] The paper cutting control unit 56 causes the cutter 18 to cut the label paper 30 (step S34).

[0076] The print start position transport unit 524 transports the label paper 30 to the print start position (step S35).

[0077] The standby position transport unit 522 determines whether or not a print start instruction has been received for a predetermined time (step S36). If it is determined that a print start instruction has not been received for a predetermined time (step S36: Yes), the process proceeds to step S37. On the other hand, if it is not determined that a print start instruction has been received for a predetermined time (step S36: No), that is, if the next print start instruction is received before the predetermined time has elapsed, the process returns to step S31.

[0078] If it is determined in step S36 that no instruction to start printing has been received for a predetermined period of time, the standby position transport section 522 transports the label paper 30 to the standby position (step S37).

[0079] The print data acquisition unit 51 determines whether the print data has been acquired within a predetermined time (step S38). If it is determined that the print data has been acquired within the predetermined time (step S38: Yes), the process proceeds to step S39. On the other hand, if it is determined that the print data has not been acquired within the predetermined time (step S38: No), the label printer 10 ends the process in Fig. 7. Note that the predetermined time in step S36 and the predetermined time in step S38 do not need to be the same, and are set independently.

[0080] When it is determined in step S38 that the print data has been acquired, the reciprocating movement control unit 54 moves the clamping position of the label paper 30 between the thermal head 16 and the platen roller 13 to a first position downstream in the conveying direction of the label paper 30 (positive side of the Y axis) (step S39).

[0081] Next, the reciprocating movement control unit 54 moves the clamping position that has been moved to the first position to the print start position on the upstream side in the transport direction (Y-axis negative side) (step S40). After that, the process returns to step S31 and printing is performed.

[0082] As described above, in the label printer 10 according to the modified embodiment, the first position is downstream of the clamping position in the conveying direction of the label paper 30, and the second position is the print start position. Therefore, it is possible to reduce the time required to move the label paper 30 to the print start position after the label paper 30 stuck to the platen roller 13 has been detached.

[0083] Although the embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. This new embodiment can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0084] 10. Label printers (printer devices) 12 Transport roller 13 Platen roller (transport section) 14 axis 15 Platen roller drive motor 16 Thermal head (printing section) 17 Outlet 18 Cutter 19 Paper evacuation section 20 Paper Guide 21 Gap 30 Label paper (printing paper) 31 Paper Roll 32 Roll core 51 Print data acquisition unit 52 Feed control section 54 Reciprocating movement control section (reciprocating movement section) 55 Printing control section 301 Surface 302 Back side 521 Cutting position conveying section 522 Waiting position transport section (waiting position moving section) 523 Printing transport section 524 Print start position transport unit (print start position movement unit) [Prior art documents] [Patent documents]

[0085] [Patent Document 1] JP 2010-5943 A

Claims

1. a printing unit that prints on a print paper having a print surface on one side and an adhesive layer on the other side and no liner; a conveying section that is disposed at a position opposite to the printing section and that is driven to rotate to pull out one end of the roll of printing paper and convey the roll of printing paper to the printing section; a standby position moving unit that, when there is no instruction to start printing for a first predetermined time after printing is completed, transports the leading edge of the print paper to a standby position downstream in a transport direction of the print paper; a reciprocating movement unit that, when an instruction to start printing is obtained within a second predetermined time after the standby position movement unit has transported the leading edge of the print paper to the standby position, reciprocates a clamping position of the print paper sandwiched between the printing unit and the transport unit between a first position downstream in the transport direction of the print paper and a second position upstream in the transport direction of the first position; A printer apparatus comprising:

2. the first position is downstream in a conveying direction of the print paper with respect to the clamping position when the print paper is in the standby position, the second position is located upstream of the clamping position in a conveying direction of the print paper when the print paper is in the standby position; 2. The printer device according to claim 1.

3. The printing apparatus further includes a print start position moving unit that moves the print paper moved by the reciprocating moving unit to a print start position.

3. The printer device according to claim 1 or 2.

4. the first position is downstream in a conveying direction of the print paper with respect to the clamping position when the print paper is in the standby position, The second position is a print start position.

2. The printer device according to claim 1.

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