WO2022177015A1 - 両面用プリンタ - Google Patents
両面用プリンタ Download PDFInfo
- Publication number
- WO2022177015A1 WO2022177015A1 PCT/JP2022/007044 JP2022007044W WO2022177015A1 WO 2022177015 A1 WO2022177015 A1 WO 2022177015A1 JP 2022007044 W JP2022007044 W JP 2022007044W WO 2022177015 A1 WO2022177015 A1 WO 2022177015A1
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- WO
- WIPO (PCT)
- Prior art keywords
- sheet
- substrate
- fed
- base material
- path
- Prior art date
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- 239000000758 substrate Substances 0.000 claims abstract description 277
- 238000007639 printing Methods 0.000 claims abstract description 92
- 230000007246 mechanism Effects 0.000 claims abstract description 62
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 112
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract 1
- 230000008022 sublimation Effects 0.000 description 20
- 238000000859 sublimation Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 13
- 238000003708 edge detection Methods 0.000 description 13
- 230000007723 transport mechanism Effects 0.000 description 13
- 238000000926 separation method Methods 0.000 description 11
- 238000001514 detection method Methods 0.000 description 10
- 230000003028 elevating effect Effects 0.000 description 5
- 238000010023 transfer printing Methods 0.000 description 4
- 239000000049 pigment Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/60—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/48—Apparatus for condensed record, tally strip, or like work using two or more papers, or sets of papers, e.g. devices for switching over from handling of copy material in sheet form to handling of copy material in continuous form and vice versa or point-of-sale printers comprising means for printing on continuous copy material, e.g. journal for tills, and on single sheets, e.g. cheques or receipts
- B41J11/50—Apparatus for condensed record, tally strip, or like work using two or more papers, or sets of papers, e.g. devices for switching over from handling of copy material in sheet form to handling of copy material in continuous form and vice versa or point-of-sale printers comprising means for printing on continuous copy material, e.g. journal for tills, and on single sheets, e.g. cheques or receipts in which two or more papers or sets are separately fed in the same direction towards the printing position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/66—Applications of cutting devices
- B41J11/70—Applications of cutting devices cutting perpendicular to the direction of paper feed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H15/00—Overturning articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/58—Article switches or diverters
Definitions
- the present disclosure relates to a printer that prints on a sheet-fed base material, and more particularly to a double-sided printer that can perform double-sided printing on a sheet-fed base material.
- a double-sided printer that transfers a dye or pigment to a sheet substrate by heating a sheet substrate having receiving layers on both sides with a thermal head has been known.
- Such a double-sided printer has a printing unit that prints on one side of a sheet substrate, and a reversing mechanism that reverses the sheet substrate printed by the printing unit. The surface is further printed by the printing unit.
- Such a double-sided printer includes a reversing mechanism that reverses the sheet-fed substrate, and that it takes a long time to convey the sheet-fed substrate.
- the present disclosure has been made in consideration of such points, and an object of the present disclosure is to provide a double-sided printer capable of performing printer processing at high speed as a whole by shortening the transport time of sheet substrates as much as possible. .
- the present disclosure relates to a double-sided printer comprising: a printing unit; a sheet substrate supply unit that stores sheet substrates to be printed on both sides and supplies the sheet substrates to the printing unit;
- a reversing mechanism for reversing the sheet-fed base material returned from the printing unit is switchably connected to the guide-conveyance path via a switching unit, and the reversing mechanism is connected to the sheet-fed base material , the sheet-fed base material having one surface facing the printing unit is reversed so that the other surface faces the printing unit, and the sheet-fed base material supply unit is placed on the upstream side of the guide conveyance path in the conveying direction from the switching unit.
- a stopper is provided to stop the supplied sheet base material, and a discharge path for discharging the sheet base material returned from the printing unit is connected via a branch portion to the downstream side of the stopper in the conveying direction of the guide conveying path. It is a printer for
- the present disclosure is a duplex printer in which the branching portion of the discharge path is provided between the stopper and the switching portion.
- the present disclosure is a double-sided printer in which the stopper also serves as a branching portion of the discharge path.
- the present disclosure is a double-sided printer in which the reversing mechanism is arranged directly below the switching section of the guide transport path.
- the present disclosure includes a storage shell in which the reversing mechanism has a cylindrical inner peripheral surface and is arranged such that the center line is oriented in the horizontal direction, and a drive mechanism that rotates the storage shell around a rotation shaft that extends in the vertical direction. It is a double-sided printer with
- the present disclosure is a duplex printer in which an upper opening is provided above the storage shell, and the reversing mechanism has a connecting path that connects the upper opening of the storage shell and the switching section.
- the present disclosure is a double-sided printer in which the distance L between the switching unit and the stopper has a relationship of L1 ⁇ 5% ⁇ L ⁇ L1 ⁇ 20% with respect to the conveying direction length L1 of the sheet base material. be.
- the present disclosure is a double-sided printer in which the storage shell is provided with a plurality of guide rollers that protrude radially inward from the inner peripheral surface of the storage shell and guide the sheet substrate.
- the present disclosure further includes a control device, wherein the control device supplies the sheet substrate from the sheet substrate supply unit to the printing unit through the guide conveying path, and the printing unit supplies the sheet substrate to one side of the sheet substrate.
- the next sheet-fed base material is sent from the sheet-fed base material supply unit to the guide conveying path, the tip of the next sheet-fed base material is stopped by the stopper, and the sheet-fed base material is passed from the printing unit through the guide conveying path,
- the sheet substrate is sent from the switching unit to the reversing mechanism, and the reversing mechanism reverses the sheet substrate so that the other surface faces the printing unit, and then the reversed sheet substrate is transferred to the printing unit.
- the double-sided printer supplies the next sheet-fed base material stopped by the stopper in the guide conveying path to the printing section.
- the transfer time of the sheet-fed base material is shortened, and the printer processing is performed at high speed as a whole.
- FIG. 1A is a schematic side view of one embodiment of a duplex printer according to the present disclosure
- FIG. FIG. 1B is an enlarged view showing the containment shell of the reversing mechanism
- FIG. 2 is an operation explanatory diagram showing the operation of the double-sided printer according to the present disclosure
- FIG. 3 is an operation explanatory diagram showing the operation of the double-sided printer according to the present disclosure
- FIG. 4 is an operation explanatory diagram showing the operation of the double-sided printer according to the present disclosure
- FIG. 5 is an operation explanatory diagram showing the operation of the double-sided printer according to the present disclosure
- FIG. 6 is an operation explanatory diagram showing the operation of the double-sided printer according to the present disclosure
- FIG. 7 is an operation explanatory diagram showing the operation of the double-sided printer according to the present disclosure
- FIG. 8 is an operation explanatory diagram showing the operation of the double-sided printer according to the present disclosure
- FIG. 9 is an operation explanatory diagram showing the operation of the double-sided printer according to the present disclosure
- FIG. 10 is an operation explanatory diagram showing the operation of the double-sided printer according to the present disclosure
- FIG. 11 is an operation explanatory diagram showing the operation of the double-sided printer according to the present disclosure
- FIG. 12 is an operation explanatory diagram showing the operation of the double-sided printer according to the present disclosure
- FIG. 13A illustrates a sheet substrate with double-sided printing according to the present disclosure
- FIG. 13B is a diagram showing a sheet substrate subjected to double-sided printing according to a comparative example
- FIGS. 1A to 13B are diagrams showing an embodiment of a double-sided printer according to the present invention.
- FIG. 1A is a schematic side view showing an embodiment of the double-sided printer
- FIG. 1B is an enlarged view showing the housing shell of the reversing mechanism
- FIGS. are schematic side views showing an embodiment of the double-sided printer
- a double-sided printer 10 conveys a sheet substrate 1 having receiving layers on both sides, and performs double-sided printing on the sheet substrate 1 by a printing unit 12A including a thermal head 12. Including printer. Further, the double-sided printer 10 can convey the continuous substrate 41 having a receiving layer on at least one surface thereof and perform single-sided printing on the continuous substrate 41 by the printing section 12A comprising the thermal head 12 .
- Such a double-sided printer 10 includes a housing 10A, a printing unit 12A including a thermal head 12 provided in the housing 10A, and a sheet substrate 1 arranged below the printing unit 12A for printing on both sides.
- a sheet base material supply unit 25 for storing and supplying the sheet base material to the thermal head 12 is provided.
- the double-sided printer 10 includes a roll-shaped base material supply section 42 which feeds the continuous base material 41 to be printed on one side into a roll and feeds the roll-shaped continuous base material 41 to the thermal head 12 . good too.
- a guide transport path 24 for transporting the single-fed substrate 1 from the single-fed substrate supply unit 25 to the thermal head 12 is installed.
- the sheet substrate 1 supplied from the sheet substrate supply unit 25 to the thermal head 12 side through the guide transport path 24 is printed by the thermal head 12 and then returned to the guide transport path 24 side.
- a reversing mechanism 20 for reversing the sheet substrate 1 returned from the thermal head 12 is switchably connected to the guide conveying path 24 via a switching unit 61 .
- the switching part 61 provided in the guide transport path 24 is provided near the exit 71 of the guide transport path 24 that feeds the sheet substrate 1 to the thermal head 12 side.
- the switching unit 61 includes a switching flap 61a for sending the sheet substrate 1 returned from the thermal head 12 to the reversing mechanism 20 side.
- a stopper 62 for stopping the sheet substrate 1 supplied from the sheet substrate supply unit 25 is provided on the upstream side of the sheet substrate 1 in the transportation direction of the switching unit 61 in the guide transportation path 24 .
- This stopper 62 engages with one end portion 1A of the single-fed substrate 1 supplied from the guide conveying path 24 to stop the single-fed substrate 1 .
- upstream side and downstream side refer to the “upstream side” and “downstream side” in the conveying direction when the sheet substrate 1 is supplied from the sheet substrate supply unit 25 to the thermal head 12 side. ”.
- the stopper 62 provided on the guide conveying path 24 has a flap shape, and the conveying path can be switched.
- the guide conveying path 24 is provided with a discharge path 65 branching from the portion of the stopper 62 to discharge the sheet base material 1 to the outside.
- the stopper 62 has the function of stopping the single-fed substrate 1 supplied from the single-fed substrate supply section 25 and feeding the single-fed substrate 1 returned from the thermal head 12 to the discharge path 65 side, and It is possible to switch between the function of sending the leaf base material 1 to the thermal head 12 side without stopping and closing the discharge path 65 side.
- the stopper 62 stops the sheet substrate 1 and also functions as a branching portion for branching the sheet substrate returned from the thermal head 12 to the discharge path 65 side.
- stopper 62 stops the single-fed substrate 1 and also serves as a branching portion for branching the single-fed substrate returned from the thermal head 12 to the discharge path 65 side, the stopper 62 is not limited to this.
- the discharge path 65 may be branched from the guide conveying path 24 further downstream of the switching section 61 via a branching section.
- the discharge path 65 is provided with nip rollers 65a at a plurality of locations for nipping the sheet substrate 1 and sending it to the exit 67 side of the discharge path 65 . Further, at the outlet 67 of the discharge path 65, a cutter 19 for cutting the sheet substrate 1 is installed as described later.
- the discharge path 65 is provided by branching from the portion of the guide conveying path 24 where the stopper 62 is located.
- the discharge channel 65 can also be branched from any part in between.
- the reversing mechanism 20 reverses the single-fed substrate 1 returned from the thermal head 12 to the guide conveyance path 24 side so that one surface 1a faces the thermal head 12 and the other surface 1b faces the thermal head 12. is.
- the guide transport path 24 and the reversing mechanism 20 are arranged below the roll-shaped substrate supply section 42, and the sheet substrate supply section 25 is provided below the guide transport path 24 and the reversing mechanism 20.
- the reversing mechanism 20 is arranged directly below the switching section 61 provided near the exit 71 of the guide conveying path 24 .
- the roll-shaped base material supply unit 42 and the thermal head 12 can be existing ones. 20 and a single-wafer base material supply unit 25 are arranged. As a result, the double-sided printer 10 according to the present invention can be configured at low cost using the existing roll-shaped substrate supply unit 42 and thermal head 12 .
- one side base material transport path 15a is provided on the entrance side of the thermal head 12, and the other side base material transport path 15b is provided on the exit side of the thermal head 12.
- a base material transport path 15 is configured by the base material transport path 15b.
- a platen roller 13 for holding the sheet substrate 1 or the continuous substrate 41 is provided at a position facing the thermal head 12 with the sheet substrate 1 or the continuous substrate 41 interposed therebetween.
- the guide conveying path 24 is connected to one side base material conveying path 15a of the base material conveying path 15 through an outlet 71, and the reversing mechanism 20 is connected to the guiding conveying path 24 through a switching section 61.
- a pick-up lever 25a is provided in the single-fed substrate supply section 25 for lifting up the leading end side of the single-fed substrate 1 placed on the elevating plate 25b in the single-fed substrate supply section 25 .
- the uppermost sheet substrate 1 among the sheet substrates 1 lifted by the pickup lever 25 a is sent to the guide conveying path 24 side by the pickup roller 26 .
- a separation roller 27 and a paper feed roller 28 are provided on the inlet 73 side of the guide conveyance path 24 , and the uppermost sheet substrate 1 among the sheet substrates 1 lifted by the pickup lever 25 a is picked up by the pickup roller 26 and separated by the separation roller 27 . , and is sent to the paper feed roller 28 side.
- the sheet substrates 1 below the sheet substrate 1 of the uppermost layer are also sent to the separating roller 27 and the sheet feeding roller 28 side together with the sheet substrate 1 of the uppermost layer. In this case, since the single-fed substrate 1 below the uppermost single-fed substrate 1 contacts the separation roller 27, it is not sent to the guide conveyance path 24 side.
- one side of the base material transfer path 15 a of the base material transfer path 15 is provided with the transfer rollers 16 and the base material transfer mechanism 30 in order from the guide transfer path 24 side.
- An edge detection sensor 35 for detecting the edge 1B of the sheet substrate 1 is installed between the substrate transport mechanism 30 and the transport roller 16 .
- the substrate conveying mechanism 30 is composed of a friction roller 31 and a pinch roller 32 .
- a discharge roller 18 is provided on the exit side of the other side base material conveying path 15 b , and a cutter 29 for cutting the continuous base material 41 is installed on the exit side of the discharge roller 18 .
- the cutter 29 removes the front end margin and the rear end margin of the printed continuous base material 41, and is a movable blade that cuts the continuous base material 41 between fixed blades 29b and 29b. 29a.
- the cutter 19 for cutting the sheet substrate 1 is installed at the exit 67 of the discharge path 65 for discharging the printed sheet substrate 1, as described above.
- the cutter 19 removes the margins at the front end and the rear end of the printed sheet substrate 1, and has a fixed blade 19b and a movable blade 19a for cutting the sheet substrate 1 between the fixed blades 19b.
- a sublimation transfer ribbon 5 for performing sublimation transfer is supplied from a ribbon unwinding section 6 to the thermal head 12 constituting the printing section 12A.
- the ribbon 5 supplied from the ribbon unwinding section 6 is used in the thermal head 12 for sublimation transfer printing, and then the used ribbon 5 is wound up by the ribbon winding section 7 .
- the reversing mechanism 20 is connected to the exit 71 side of the guide conveying path 24 via the switching section 61 .
- the reversing mechanism 20 includes a storage shell 21 having a cylindrical inner peripheral surface 21a and a center line 21b arranged in a horizontal direction. and a driving mechanism 52 that rotates around a rotating shaft 45 extending to the center.
- the housing shell 21 is rotatable around the rotating shaft 45 and is rotated by the drive mechanism 52 .
- the drive mechanism 52 comprises a drive motor 52a and a transmission mechanism 52b for transmitting rotation from the drive motor 52a to the rotary shaft 45. As shown in FIG.
- the storage shell 21 has a cylindrical inner peripheral surface 21a and is provided with an upper opening 21c for introducing the sheet substrate 1 into the storage shell 21 above the storage shell 21 .
- the reversing mechanism 20 has an upper opening 21c of the housing shell 21 and a connecting path 70 that connects with the switching portion 61 of the guiding/conveying path 24. As shown in FIG.
- the sheet substrate 1 introduced into the storage shell 21 is moved along the cylindrical inner peripheral surface 21a by the guide rollers 50 provided in the storage shell 21.
- the storage shell 21 is provided with a position detection sensor 46 for detecting the position of the sheet substrate 1 moving along the inner peripheral surface 21a.
- a plurality of guide rollers 50 are provided on the outer periphery of the storage shell 21 , and the guide rollers 50 penetrate the storage shell 21 and slightly protrude further radially inward from the inner peripheral surface 21 a of the storage shell 21 .
- the guide rollers 50 abut on the sheet substrate 1 entering the storage shell 21 and guide the sheet substrate 1 along the inner peripheral surface 21 a of the storage shell 21 .
- the leading end (the other end) 1B of the single-fed substrate 1 entering the storage shell 21 abuts against the inner peripheral surface 21a of the storage shell 21, but the other portion of the single-fed substrate 1 does not follow the guide rollers 50. be guided. Therefore, the sheet substrate 1 entering the storage shell 21 will not be scratched by the inner peripheral surface 21a of the storage shell 21, and the sheet substrate 1 will not be damaged.
- the above components for example, the drive motor 52a of the drive mechanism 52, the guide roller 50, the base material transport mechanism 30, the roll-shaped base material supply section 42, the thermal head 12, the ribbon unwinding section 6, the ribbon winding section 7,
- the transport roller 16, the discharge roller 18, the cutter 19, the cutter 29, the pickup lever 25a, the pickup roller 26, the separation roller 27, and the paper feed roller 28 are all driven and controlled by the control device 11, and these constituent members and the control device 11 are: All are housed in the housing 10A.
- control device 11 has a drive control unit for the transport mechanism that drives and controls the substrate transport mechanism 30 with high precision to execute multi-color printing with the thermal head 12 with high precision.
- the substrate transport mechanism 30 for transporting the sheet substrate 1 and the edge detection sensor 35 will be described.
- a substrate transport mechanism 30 for transporting the sheet substrate 1 As shown in FIG. 1A, on one side of the substrate transport path 15a of the substrate transport path 15, between the thermal head 12 and the transport rollers 16, a substrate transport mechanism 30 for transporting the sheet substrate 1, An edge detection sensor 35 is installed in order from the thermal head 12 side.
- the substrate transport mechanism 30 has a friction roller 31 and a pinch roller 32 that presses the sheet substrate 1 against the friction roller 31 side.
- An edge detection sensor 35 is provided adjacent to the transport roller 16 side of the substrate transport mechanism 30 , and the edge 1B of the sheet substrate 1 can be detected by this edge detection sensor 35 .
- a detection signal from the edge detection sensor 35 is sent to the drive control section of the transport mechanism in the control device 11 .
- This drive control unit drives and controls the friction roller 31 based on the signal from the edge detection sensor 35, adjusts the position of the edge 1B of the sheet base material 1, and executes multi-color printing by the thermal head 12 with high accuracy. can.
- the continuous base material 41 is delivered from the roll-shaped base material supply unit 42, and the continuous base material 41 is sent from the base material conveying path 15 to the discharge roller 18 side.
- one surface of the continuous base material 41 is printed by sublimation transfer using the thermal head 12 .
- the continuous base material 41 discharged to the outside of the discharging roller 18 is conveyed in the opposite direction to the base material conveying path 15 side by the rolled base material supply unit 42 and the discharging roller 18, and the continuous base material 41 is rolled. It is returned to the base material supply section 42 side. Further, the ribbon 5 for sublimation transfer is supplied from the ribbon unwinding section 6 to the thermal head 12 side, and the dye or pigment on the ribbon 5 side can be transferred to one surface of the continuous substrate 41 by the heat from the thermal head 12 .
- the sublimation transfer ribbon 5 has Y (yellow), M (magenta), C (cyan), and OP (overcoat) areas, and Y printing is first performed by the Y area of the ribbon 5 .
- Y printing is applied to one surface of the continuous base material 41 by the sublimation transfer ribbon 5 .
- the printed continuous base material 41 that has been subjected to Y printing is sent from the base material conveying path 15 to the discharge roller 18 side again.
- the sublimation transfer ribbon 5 is used to apply M printing and C printing to one surface of the continuous substrate 41 using the thermal head 12 . Printing is performed sequentially to complete multicolor printing, and then an overcoat layer is formed on one side of the continuous substrate 41 .
- the continuous base material 41 printed on one side in this way is sent from the base material transfer path 15b on the other side of the base material transfer path 15 to the discharge roller 18 side.
- the cutter 29 removes the unprinted margin at the leading end of the continuous base material 41 .
- the continuous base material 41 is discharged outward by the discharge roller 18 , and then the margin at the trailing end of the continuous base material 41 is removed by the cutter 29 .
- the continuous base material 41 printed on one side and printed on the entire surface by removing the margins at the leading edge and the trailing edge is ejected outward by the ejection roller 18 to be used as a product. taken out.
- the pickup lever 25a lifts the lifting plate 25b in the single-fed base material supply section 25. At this time, the tip side of the sheet substrate 1 placed on the lifting plate 25b is also lifted.
- the uppermost sheet substrate 1 among the sheet substrates 1 placed on the lifting plate 25b is sent by the pickup roller 26 toward the separation roller 27 and the paper feed roller 28 side.
- the transport roller 16 on the side of the one-side base material transport path 15a rotates in synchronization with the pickup roller 26, the separation roller 27, and the paper feed roller .
- the sheet base material 1 sent to the separating roller 27 and the sheet feeding roller 28 side by the pickup roller 26 is then guided along the guide conveying path 24 with one end 1A of the sheet base material 1 leading. , to the side of the substrate transport path 15 .
- the sheet substrates 1 below other than the uppermost sheet substrate 1 are also sent to the separation roller 27 and the paper feed roller 28 side. It is also conceivable that However, since one end portion 1A of the lower sheet substrates 1 other than the uppermost sheet substrate 1 contacts the separation roller 27, only the uppermost sheet substrate 1 is transported from the guide transport path 24 side to the substrate transport path 15 side. (See FIG. 3).
- the other end 1B of the sheet base material 1 is detected by a detection sensor (not shown) provided on the guide conveying path 24, and at the same time the pick-up lever 25a is lowered.
- the elevating plate 25b in the single-fed substrate supply section 25 and the sheet substrate 1 on the elevating plate 25b are also lowered.
- the sheet substrate 1 is pressed against the friction roller 31 side by the pinch roller 32 in the conveying mechanism 30 . Therefore, by driving the friction roller 31 by the drive control section of the control device 11 , the sheet substrate 1 can be reliably conveyed by the frictional force from the friction roller 31 . Further, since the sheet substrate 1 is conveyed by the frictional force from the friction roller 31, the sheet substrate 1 is less damaged than, for example, in the case where the conveying roller is provided with fine protrusions and these fine protrusions are bitten into the sheet substrate 1. don't give
- both surfaces of the sheet substrate 1 come into contact with the friction roller 31 side of the transport mechanism 30 .
- the friction roller 31 conveys the sheet substrate 1 by frictional force, both sides of the sheet substrate 1 are not damaged.
- appropriate double-sided printing can be applied to both sides of the sheet base material 1 .
- the sheet substrate 1 is sent from the substrate conveying path 15 to the discharge roller 18 side.
- one side 1a of the sheet base material 1 is subjected to printing by sublimation transfer using the thermal head 12 .
- the sheet substrate 1 discharged outside the discharge roller 18 is conveyed in the opposite direction to the substrate conveying path 15 side by the discharge roller 18, and the sheet substrate 1 is conveyed by the conveying roller. 16 and the transport mechanism 30 move from the other side substrate transport path 15b of the substrate transport path 15 to the side of the one side substrate transport path 15a. Further, the ribbon 5 for sublimation transfer is supplied from the ribbon unwinding section 6 to the thermal head 12 side. Further, the heat from the thermal head 12 can transfer the dye or pigment on the ribbon 5 side to the one surface 1a of the sheet substrate 1 . During this time, the stopper 62 of the guide conveying path 24 guides the single-fed substrate 1 returned from the thermal head 12 to the discharge path 65 side, and switches to the position to stop the single-fed substrate 1 supplied from the single-fed substrate supply section 25.
- the sublimation transfer ribbon 5 has Y (yellow), M (magenta), C (cyan), and OP (overcoat) areas, and Y printing is first performed by the Y area of the sublimation transfer ribbon 5 . .
- Y printing is applied to one surface 1 a of the sheet substrate 1 by the sublimation transfer ribbon 5 .
- the printed sheet base material 1 subjected to Y printing is returned from the thermal head 12 to the one side base material transfer path 15a side of the base material transfer path 15, after which the sheet base material 1 enters the guide transfer path 24 and is switched.
- the conveying path is switched by the stopper 62 and sent to the discharge path 65 side.
- the single-fed substrate 1 in the discharge path 65 passes through the stopper 62, enters the guide transportation path 24, passes through the switching unit 61, and is again transported on one side of the substrate transportation path 15.
- the substrate is sent from the path 15a to the other side substrate transport path 15b.
- the sheet substrate 1 is returned from the other-side substrate transport path 15b to the one-side transport path 15a in the same manner as described above.
- the sublimation transfer ribbon 5 is used to sequentially perform M printing and C printing on one side 1a of the sheet substrate 1 to complete the multicolor printing.
- An overcoat layer is formed on the surface 1a.
- the single-fed substrate 1 sent to the discharge roller 18 side is returned from the other-side substrate transportation path 15b to the one-side substrate transportation path 15a by the transportation mechanism 30, enters the guide transportation path 24, and enters the switching unit. 61, the conveying path is switched by the stopper 62 and sent to the discharge path 65 side. During this time, Y printing, M printing, and C printing are applied to one surface 1a of the sheet substrate 1 by the thermal head 12 to form an overcoat layer.
- the drive control unit drives and controls the friction roller 31 based on the signal from the edge detection sensor 35, thereby adjusting the position of the other edge 1B of the sheet base material 1.
- the drive control section of the control device 11 controls the driving of the friction roller 31 based on the signal from the edge detection sensor 35 to adjust the position of the other edge 1B on the leading edge side of the sheet base material 1. .
- the position adjustment of the sheet substrate 1 by the drive control unit of the control device 11 is performed each time printing of each color (Y printing, M printing, C printing) is executed and an overcoat layer is formed. . Therefore, the position of the sheet substrate 1 can be reliably adjusted, and highly accurate multi-color printing by the thermal head 12 can be realized.
- the thermal head 12 performs sublimation transfer printing on one side 1a of the sheet substrate 1, and the multicolor printing on one side 1a of the sheet substrate 1 is completed.
- the pick-up lever 25a lifts the lifting plate 25b in the single substrate material supply section 25, and the single substrate materials 1 stacked in the single substrate material supply section 25 are lifted in the same manner as described above.
- the next uppermost sheet substrate 1 among the sheet substrates 1 placed on the lifting plate 25b is sent by the pickup roller 26 to the separation roller 27 and paper feed roller 28 side.
- the next sheet base material 1 sent to the separating roller 27 and the paper feeding roller 28 side by the pickup roller 26 is then sent into the guide conveying path 24 with one end 1A of the next sheet base material 1 leading. be done.
- the next sheet base material 1 in the guide conveying path 24 is stopped with one end 1A engaging the stopper 62 .
- the distance between the switching portion 61 provided on the guide transport path 24 and the stopper 62 it is convenient for the distance between the switching portion 61 provided on the guide transport path 24 and the stopper 62 to be as short as possible. By shortening the distance between the switching portion 61 and the stopper 62 in this manner, the next sheet substrate 1 can be quickly supplied to the thermal head 12 side.
- the distance L between the switching portion 61 and the stopper 62 has a relationship of L1 ⁇ 5% ⁇ L ⁇ L1 ⁇ 20% with respect to the conveying direction length L1 of the sheet substrate 1 (see FIG. 2 and Figure 3).
- the other end 1B of the sheet base material 1 is detected by a detection sensor (not shown) provided on the guide conveying path 24, and at the same time the pick-up lever 25a is lowered.
- the elevating plate 25b in the single-fed substrate supply section 25 and the sheet substrate 1 on the elevating plate 25b are also lowered.
- the sheet substrate 1 is returned from the thermal head 12 to the guide conveyance path 24 side.
- the sheet substrate 1 printed on one side 1a is fed into the reversing mechanism 20 by a switching section 61 having a switching flap 61a provided in the vicinity of the exit 71 of the guiding/conveying path 24.
- the sheet substrate 1 passes through the connecting path 70 of the reversing mechanism 20 and is guided into the housing shell 21 from the upper opening 21c (see FIGS. 1B and 6).
- the switching flap 61a in the guiding and conveying path 24 is switched in advance, and the sheet substrate 1 returned to the guiding and conveying path 24 by the switching flap 61a is transferred from the upper opening 21c through the connecting path 70 to the storage shell 21. I can definitely lead you inside. During this time, the sheet substrate 1 is sent to the storage shell 21 side by the nip rollers 70 a of the connecting path 70 .
- the sheet substrate 1 guided into the storage shell 21 is then moved along the cylindrical inner peripheral surface 21a of the storage shell 21 by the feed rollers 50 (see FIGS. 1B and 7).
- the leading end (the other end) 1B of the single-fed substrate 1 contacts the inner peripheral surface 21a of the storage shell 21, but the other portion of the single-fed substrate 1 is guided by the guide rollers 50.
- the sheet substrate 1 is not damaged by being rubbed against the inner peripheral surface 21 a of the storage shell 21 .
- the trailing end (one end) 1A of the sheet base material 1 is detected by the position detection sensor 46, and based on the signal from the position detection sensor 46, the controller 11 moves the guide rollers. 50 is stopped.
- the position detection sensor 46 is arranged at the end of the connecting path 70 on the switching section 61 side.
- the sheet substrate 1 is arranged along the inner peripheral surface 21a of the storage shell 21, and one end portion 1A of the sheet substrate 1 is positioned at the end portion of the connecting path 70 on the switching portion 61 side.
- the other end 1B of the sheet substrate 1 is on the inner peripheral surface 21a of the storage shell 21.
- the drive motor 52a is rotated by the control device 11, and the housing shell 21 is rotated by 180° around the rotating shaft 45 (see FIG. 8).
- the reversing mechanism 20 completes the reversing action of the sheet substrate 1 .
- the guide roller 50 inside the storage shell 21 is driven again, and the sheet substrate 1 that has been arranged along the inner peripheral surface 21a of the storage shell 21 is moved by the guide roller 50 along the end portion 1A. It is sent to the thermal head 12 side through the connection path 70 and the switching portion 61 as the head.
- the sheet substrate 1 with one surface 1 a facing the thermal head 12 can be reversed so that the other surface 1 b faces the thermal head 12 .
- the sheet substrate 1 is introduced into the storage shell 21 from the other end 1B, and after the reversal action, the sheet substrate 1 is sent out from the storage shell 21 so that the other end 1B is the trailing edge.
- the other end 1B of the sheet substrate 1 faces the storage shell 21 side both before and after the reversal.
- the sheet base material 1 is sent from the guide conveyance path 24 to the discharge roller 18 side (see FIG. 9).
- Y printing is first applied to the other side 1b of the sheet substrate 1 by the thermal head 12 using the sublimation transfer ribbon 5 in the same manner as described above.
- the sheet base material 1 returned from the thermal head 12 to the guiding conveying path 24 passes through the switching unit 61 and the conveying path is switched by the stopper 62 to be sent to the discharge path 65 side.
- M printing and C printing are sequentially applied to the other surface 1b of the sheet substrate 1 using the sublimation transfer ribbon 5, and then an overcoat layer is formed on the other surface 1b of the sheet substrate 1. In this way, multicolor printing on the other side 1b of the sheet substrate 1 is completed.
- the sheet substrate 1 having both sides 1a and 1b subjected to double-sided printing is returned from the thermal head 12 to the guide transport path 24 side, and passes through the switching section 61 and the stopper 62 provided in the guide transport path 24 to the discharge path. It is sent to the 65 side.
- the margin of the unprinted leading end (other side end) 1B is removed by the cutter 19 (see FIG. 11).
- the single-fed substrate 1 is discharged outward from the discharge port 55, and then the margin of the trailing end (one end) 1A of the single-fed substrate 1 is removed by the cutter 19.
- the sheet substrate 1 printed on both sides of the one surface 1a and the other surface 1b is removed from the leading edge and the trailing edge, and the entire surface is printed. to be discharged as a product.
- the storage shell 21 is rotated again by 180° around the rotating shaft 45 by the drive mechanism 52, and the storage shell 21 assumes its original posture.
- the other end 1B of the sheet substrate 1 faces the storage shell 21 side both before and after the reversal. Therefore, the sheet-fed base material 1 which is sent from the discharge roller 18 side to the thermal head 12 side and printed is always introduced into the thermal head 12 from the other end 1B and printed by the thermal head 12 . As a result, the length of the margin can be shortened when the cutter 19 removes the margin on the one end 1A and the margin on the other end 1B that are not printed.
- the sheet substrate 1 is always sent from the other end 1B to the thermal head 12 side both before and after the reversal. 12 prints on one side 1a and the other side 1b.
- the area between the friction roller 31 and the pinch roller 32 of the sheet substrate 1 and the thermal head 12 must be removed as a margin.
- the sheet substrate 1 is always introduced from the discharge roller 18 side to the thermal head 12 from the other end 1B, and printed. Become. Therefore, the area to be removed as a margin between the friction roll 31 and pinch roll 32 and the thermal head 12 is the front side (one side 1a) and the back side (the other side 1b) of the sheet substrate 1. can be arranged on the end 1B side of the .
- the predetermined blank of the single-fed substrate 1 can be reliably removed.
- the margin on the one end 1A side of the sheet substrate 1 is arbitrary and can be formed shorter than the margin on the other end 1B side.
- the sheet substrate 1 is introduced from the other end 1B into the thermal head 12 and printed, and after the sheet substrate 1 is inverted, the sheet substrate 1 is transferred from the one end 1A to the thermal head 12.
- the area to be removed as a margin between the friction roll 31 and pinch roll 32 and the thermal head 12 is one end 1A side of the sheet substrate 1 (front side) and the other end 1B side (back side). Therefore, the length of the margin to be removed by the cutter 19 is increased.
- the area to be removed as a margin between the friction rolls 31 and pinch rolls 32 and the thermal head 12 is always brought to the other end portion 1B side of the sheet substrate 1. and reduce the length of white space to be removed.
- the stopper 62 of the guiding/conveying path 24 is switched to the open position, and the next sheet substrate 1 that has been stopped and waiting by the stopper 62 is sent to the thermal head 12 side via the switching portion 61. be done. Then, double-sided printing is applied to the next sheet-fed base material 1 .
- the single-fed substrate 1 supplied from the single-fed substrate supply unit 25 is transported through the switching unit 61 provided in the vicinity of the outlet 71 on the thermal head 12 side of the guide transportation path 24 .
- the reversing mechanism 20 was connected.
- the reversing mechanism 20 is arranged directly below the switching section 61 of the guiding/conveying path 24 . Therefore, the sheet substrate 1 returned from the thermal head 12 can be directly supplied from the switching unit 61 to the reversing mechanism 20, and the conveying path length of the sheet substrate 1 from the thermal head 12 to the reversing mechanism 20 can be shortened as much as possible. As a result, the transport time of the sheet substrate 1 can be shortened as much as possible, and the speed of printer processing can be increased.
- the storage shell 21 of the reversing mechanism 20 has an upper opening 21c, and the storage shell 21 is directly connected to the switching portion 61 of the guide/conveyance path 24 via the upper opening 21c and the connecting path 70. Therefore, the time required to introduce the single substrate material 1 from the switching portion 61 of the guide transport path 24 to the storage shell 21 via the connecting path 70, and the time required to connect the single substrate material 1 in the storage shell 21 to the switching portion 61 of the guide transport path 24 The time to send over path 70 can be greatly reduced.
- the sheet substrate 1 supplied from the sheet substrate supply unit 25 is fed from the guide conveying path 24 to the thermal head 12 side, the sheet substrate 1 is double-sided printed, and the sheet substrate 1 is guided. It is discharged from the transport path 24 to the outside through the discharge path 65 via the switching portion 61 and the stopper 62 . During this time, the next sheet substrate 1 is supplied from the sheet substrate supply unit 25 to the guide conveying path 24, the next sheet substrate 1 is supplied to the stopper 62 provided near the switching unit 61, and is made to stand by at this stopper 62.
- the next sheet substrate 1 stopped by the stopper 62 is immediately moved from the guide transport path 24 to the thermal head 12 side. can supply to For this reason, after the sheet substrate printed on both sides by the thermal head 12 is discharged to the outside from the discharge path 65, the next sheet substrate 1 is supplied to the thermal head 12 side without wasting time.
- the sheet substrate 1 can be double-sided printed. Also, the time for supplying the next sheet substrate 1 to the thermal head 12 side can be greatly shortened.
- the sheet substrate 1 returned from the thermal head 12 passes through the switching portion 61 of the guide transportation path 24 and is sent from the stopper 62 to the discharge path 65 side. Therefore, the sheet substrate 1 that has been printed by the thermal head 12 can be discharged from the discharge path 65 to the outside as it is, and the discharge time of the sheet substrate 1 after printing can be greatly shortened.
- sublimation transfer printing can be easily performed by the thermal head 12 on one side of the continuous base material 41 unwound from the roll-shaped base material supply section 42 .
- the orientation of the sheet substrate 1 can be easily and reliably reversed simply by introducing the sheet substrate 1 into the storage shell 21 of the reversing mechanism 20 and rotating the storage shell 21 by 180°.
- sublimation transfer printing can be easily performed by the thermal head 12 on both surfaces 1a and 1b of the sheet substrate 1 which has been reversed in this way.
- the overall shape of the single-sided and double-sided printer 10 can be made compact.
- the single-sided and double-sided printer 10 has a compact configuration as a whole. Therefore, for example, even if the sheet-fed substrate 1 is clogged, by opening the housing 10A, the location of the sheet-fed substrate 1 can be easily checked and extracted from the inside of the housing 10A.
- the printer 10 can be manufactured inexpensively and easily.
- the edge detection sensor 35 detects the other edge 1B of the sheet base material 1, and the drive control section of the controller 11 drives and controls the friction roller 31 based on the detection signal from the edge detection sensor 35. Therefore, the friction roller 31 can be used to adjust the position of the sheet substrate 1, and the thermal head 12 can achieve highly accurate multicolor printing.
- the area to be removed as a margin can be moved to the other end 1B side in both the one surface 1a and the other surface 1b of the sheet substrate 1, and the length of the margin to be removed can be shortened. .
Abstract
Description
1a 一方の面
1b 他方の面
5 昇華転写用リボン
6 リボン巻出部
7 リボン巻取部
10 両面用プリンタ
10A 筐体
11 制御装置
12 サーマルヘッド
13 プラテンローラ
15 基材搬送路
15a 一側基材搬送路
15b 他側基材搬送路
16 搬送ローラ
18 排出ローラ
19 カッタ
20 反転機構
21 格納シェル
21a 内周面
24 案内搬送路
25 枚葉基材供給部
25a ピックアップレバー
26 ピックアップローラ
27 分離ローラ
28 給紙ローラ
29 カッタ
30 搬送機構
31 摩擦ローラ
32 ピンチローラ
41 連続基材
42 ロール状基材供給部
45 回転軸
46 位置検出センサ
50 案内ローラ
52 駆動機構
52a 駆動モータ
52b 伝達機構
61 切替部
61a 切替フラップ
62 ストッパ
65 排出路
67 出口
70 連結路
71 出口
Claims (9)
- 両面用プリンタにおいて、
印刷部と、
両面に印刷される枚葉基材を貯えて、前記印刷部へ供給する枚葉基材供給部と、
前記枚葉基材供給部からの前記枚葉基材を前記印刷部へ搬送する案内搬送路とを備え、
前記案内搬送路に、前記印刷部から戻される前記枚葉基材を反転させる反転機構が切替部を介して切り替え自在に接続され、前記反転機構は前記枚葉基材について、その一方の面が前記印刷部に向かう前記枚葉基材を他方の面が前記印刷部へ向かうよう反転させ、
前記案内搬送路のうち前記切替部より搬送方向上流側に、前記枚葉基材供給部から供給される前記枚葉基材を停止させるストッパを設け、前記案内搬送路のうち前記ストッパの搬送方向下流側に、前記印刷部から戻される前記枚葉基材を排出する排出路を分岐部を介して接続した両面用プリンタ。 - 前記排出路の分岐部は、前記ストッパと前記切替部との間に設けられている、請求項1記載の両面用プリンタ。
- 前記ストッパは、前記排出路の分岐部を兼ねる、請求項1記載の両面用プリンタ。
- 前記反転機構は、前記案内搬送路の切替部直下に配置されている、請求項1乃至3のいずれか記載の両面用プリンタ。
- 前記反転機構は円筒状の内周面を有するとともに、その中心線が水平方向を向くよう配置された格納シェルと、前記格納シェルを上下方向に延びる回転軸を中心に回転させる駆動機構とを有する、請求項1乃至4のいずれか記載の両面用プリンタ。
- 前記格納シェルの上方に上方開口が設けられ、前記反転機構は前記格納シェルの前記上方開口と前記切替部とを連結する連結路を有する、請求項5記載の両面用プリンタ。
- 前記切替部と前記ストッパとの間の距離Lは、前記枚葉基材の搬送方向長さL1に対してL1×5%≦L≦L1×20%の関係をもつ、請求項1乃至6のいずれか記載の両面用プリンタ。
- 前記格納シェルに、前記格納シェルの内周面から半径方向内方へ突出して前記枚葉基材を案内する複数の案内ローラを設けた、請求項5記載の両面用プリンタ。
- 制御装置を更に備え、
前記制御装置は、前記枚葉基材供給部から前記枚葉基材を前記案内搬送路を経て前記印刷部へ供給し、前記印刷部により前記枚葉基材の一方の面に印刷を施し、
前記枚葉基材供給部から次の枚葉基材を前記案内搬送路へ送り、次の枚葉基材の先端を前記ストッパにより停止させ、
前記印刷部から前記枚葉基材を前記案内搬送路を経て、前記切替部から前記反転機構へ送り、前記反転機構により一方の面が前記印刷部に向かう前記枚葉基材を他方の面が前記印刷部に向かうよう反転させ、
次に反転させた前記枚葉基材を前記印刷部へ送って、前記印刷部により前記枚葉基材の他方の面に印刷を施し、
前記印刷部から印刷済の前記枚葉基材を、前記案内搬送路を経て前記分岐部から前記排出路へ送り、
前記案内搬送路内の前記ストッパにより停止していた次の枚葉基材を前記印刷部へ供給する、請求項1乃至8のいずれか記載の両面用プリンタ。
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US18/253,433 US20240010010A1 (en) | 2021-02-19 | 2022-02-21 | Duplex printer |
CN202280008764.8A CN116670056A (zh) | 2021-02-19 | 2022-02-21 | 双面用打印机 |
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JP (1) | JP7190116B2 (ja) |
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JP2005314041A (ja) * | 2004-04-28 | 2005-11-10 | Funai Electric Co Ltd | 熱転写プリンタ |
JP2006347684A (ja) * | 2005-06-15 | 2006-12-28 | Brother Ind Ltd | 自動原稿搬送装置及び画像読取装置 |
JP2013010606A (ja) * | 2011-06-29 | 2013-01-17 | Ricoh Co Ltd | 用紙処理装置および画像形成装置 |
JP2017094537A (ja) * | 2015-11-19 | 2017-06-01 | 三菱電機株式会社 | サーマルプリンタ |
JP2018090409A (ja) * | 2016-12-07 | 2018-06-14 | コニカミノルタ株式会社 | 画像形成装置および用紙搬送制御方法 |
JP2020040740A (ja) * | 2018-09-06 | 2020-03-19 | 大日本印刷株式会社 | 熱転写印画装置 |
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JP2000089523A (ja) * | 1998-09-16 | 2000-03-31 | Konica Corp | 自動原稿搬送装置 |
KR100806877B1 (ko) | 2006-04-14 | 2008-02-22 | 삼성전자주식회사 | 화상형성장치 |
JP4956602B2 (ja) | 2009-11-30 | 2012-06-20 | 株式会社沖データ | 自動原稿搬送装置、画像読取装置及び複合装置 |
-
2021
- 2021-02-19 JP JP2021025342A patent/JP7190116B2/ja active Active
-
2022
- 2022-02-21 CN CN202280008764.8A patent/CN116670056A/zh active Pending
- 2022-02-21 WO PCT/JP2022/007044 patent/WO2022177015A1/ja active Application Filing
- 2022-02-21 US US18/253,433 patent/US20240010010A1/en active Pending
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JP2005314041A (ja) * | 2004-04-28 | 2005-11-10 | Funai Electric Co Ltd | 熱転写プリンタ |
JP2006347684A (ja) * | 2005-06-15 | 2006-12-28 | Brother Ind Ltd | 自動原稿搬送装置及び画像読取装置 |
JP2013010606A (ja) * | 2011-06-29 | 2013-01-17 | Ricoh Co Ltd | 用紙処理装置および画像形成装置 |
JP2017094537A (ja) * | 2015-11-19 | 2017-06-01 | 三菱電機株式会社 | サーマルプリンタ |
JP2018090409A (ja) * | 2016-12-07 | 2018-06-14 | コニカミノルタ株式会社 | 画像形成装置および用紙搬送制御方法 |
JP2020040740A (ja) * | 2018-09-06 | 2020-03-19 | 大日本印刷株式会社 | 熱転写印画装置 |
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US20240010010A1 (en) | 2024-01-11 |
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