WO2003080351A1 - Imprimante - Google Patents

Imprimante Download PDF

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Publication number
WO2003080351A1
WO2003080351A1 PCT/JP2003/002165 JP0302165W WO03080351A1 WO 2003080351 A1 WO2003080351 A1 WO 2003080351A1 JP 0302165 W JP0302165 W JP 0302165W WO 03080351 A1 WO03080351 A1 WO 03080351A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
paper
peripheral surface
sheet
guide member
Prior art date
Application number
PCT/JP2003/002165
Other languages
English (en)
Japanese (ja)
Inventor
Minoru Yamamoto
Keiji Seo
Takashi Okumura
Mutsuo Naoe
Hiroshi Taira
Katsuhiko Shimada
Motoaki Yamanashi
Original Assignee
Brother Kogyo Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brother Kogyo Kabushiki Kaisha filed Critical Brother Kogyo Kabushiki Kaisha
Priority to AU2003211735A priority Critical patent/AU2003211735A1/en
Publication of WO2003080351A1 publication Critical patent/WO2003080351A1/fr

Links

Classifications

    • 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
    • B41J11/0045—Guides for printing material
    • B41J11/005—Guides in the printing zone, e.g. guides for preventing contact of conveyed sheets with printhead

Definitions

  • the present invention relates to a printer that conveys a sheet and prints predetermined items on the surface of the sheet during the conveying process.
  • a direct thermal type printer equipped with a line type thermal head has been known as a printer.
  • This printer is set with multiple sheets of thermal paper (paper) cut in the form of paper.
  • the set sheets are sequentially sent one by one to a printing mechanism, and are sent in a sheet discharging direction by rotation of a platen roller provided in the printing mechanism.
  • the paper is heated by a thermal head for each line extending in a direction perpendicular to the transport direction while being transported by the platen roller, so that arbitrary characters and images are printed.
  • a discharge guide member having a guide surface inclined toward the paper discharge side is provided near the platen roller.
  • the paper on which printing has been performed on the platen roller is sent by the platen roller as it is.
  • the paper is guided in the direction so as to be separated from the peripheral surface of the platen roller.
  • the paper is separated from the platen roller, guided to the paper discharge side, and discharged. Disclosure of the invention
  • This invention can prevent paper from entering into the clearance gap between a paper discharge guide member and a roller, and can prevent the situation in which paper is wrapped around a roller in particular in double and triple. It is intended to provide a printer.
  • a printer includes a roller that is rotated to convey a sheet, a printing unit that performs printing on the sheet on the roller, and a paper supply side to the roller along a peripheral surface of the roller.
  • a paper transport path that is curved and separates from the peripheral surface of the roller and extends to the paper discharge side, wherein the paper transport path includes the paper separated from the peripheral surface of the roller toward the paper discharge side.
  • a discharge guide member for guiding is provided, and the discharge guide member includes a rib having a guide surface for contacting the leading side of the sheet in the transport direction of the sheet and turning the sheet away from the peripheral surface of the roller. Are arranged in the axial direction of the roller at an interval from each other.
  • a printer includes a roller that is rotated to convey a sheet, a printing unit that performs printing on the sheet on the roller, and a roller that is supplied from a sheet supply side to the roller.
  • a paper transport path curved along the peripheral surface of the roller and separated from the roller peripheral surface and extending toward the paper discharge side, wherein the paper transport path includes the paper separated from the peripheral surface of the roller.
  • a discharge guide member for guiding the sheet to the paper discharge side is provided, and the discharge guide member includes: (1) a peripheral surface on the downstream side in the rotation direction of the roller from a position where the paper is separated from the roller; And (2) a guide surface for contacting the leading side of the sheet in the sheet transport direction and for turning the sheet away from the peripheral surface of the roller.
  • the opposing surface is provided with a regulating portion that stops the sheet by contacting the sheet that has entered between the opposing surface and the peripheral surface of the roller.
  • a printer includes: a roller that is rotated to convey a sheet; a printing unit that performs printing on the sheet on the roller; and a roller below the roller from a sheet supply side to the roller.
  • a paper transport path that curves along the peripheral surface of the roller, separates from the roller peripheral surface above the roller, and extends to a paper discharge port formed above the separation position in the paper traveling direction.
  • the paper transport path is provided with a discharge guide member for guiding the paper detached from the peripheral surface of the roller to the paper discharge port
  • the discharge guide member includes: It is characterized in that a guide surface for guiding the paper so as to come into contact with the leading end of the paper in the conveying direction to separate the paper from the peripheral surface of the roller and head toward the paper discharge port is defined.
  • FIG. 1 is a perspective view of a printing apparatus according to an embodiment of the present invention.
  • FIG. 2 is a side sectional view of the pudding according to the embodiment of the present invention.
  • FIG. 3 is a side cross-sectional view showing a state where a sheet is set in a sheet storage unit.
  • FIG. 4 is an enlarged cross-sectional view showing details of a sheet separating section and a printing mechanism section.
  • FIG. 5 is a perspective view of a guide member according to the first embodiment.
  • FIG. 6 is a perspective view of a guide member according to the second embodiment.
  • FIG. 1 is a perspective view of a pudding 1 according to an embodiment of the present invention
  • FIG. 2 is a side sectional view
  • FIG. 3 is a diagram showing a state in which a sheet is set in a sheet storage unit.
  • FIG. 4 is an enlarged cross-sectional view showing details of a paper separating section and a printing mechanism section.
  • FIG. 5 is a perspective view of the guide member of the first embodiment
  • FIG. 6 is a perspective view of the guide member of the second embodiment.
  • pudding is rectangular in plan view (A6 to A7 size It is a compact configuration with a thickness of approximately 2 cm or less.
  • the printer 1 has a main body case 2.
  • the main body case 2 includes a frame 3, a lower cover 4 covering the lower surface of the frame 3, and an upper cover 5 covering a part of the upper surface of the frame 3.
  • a paper storage portion (paper feed portion) 6 is formed as shown in FIG.
  • a paper package 9 (see FIG. 3) is placed in the paper storage section 6.
  • the paper package 9 has a configuration in which a plurality of A6 to A7 size cut sheet-shaped thermal papers (recording medium; hereinafter, referred to as “paper”) 7 are stored in a package material 8.
  • the thermal paper can be a single color by heating the thermal head 15, a thermal paper capable of two-color development, a label paper, a copy paper capable of printing two sheets at the same time, or a perforation by heating.
  • Various types can be used, such as a heat-sensitive perforation type in which a perforated layer to be formed is laminated on a base material layer.
  • the upper part of the paper storage unit 6 is covered with a lid 10, and the lid 10 is rotatable as shown in FIG.
  • a lock mechanism (not shown) is provided on the main body case 2 side. With the paper package 9 set in the paper storage section 6 as described above, the lid 10 is closed and locked as shown in FIG. You can do it.
  • a pickup roller 12 and a separation block 13 as a paper separation unit 11 are arranged at one end of the paper storage unit 6 (the right-hand end in FIG. 2).
  • a thermal head 15 as a printing mechanism 14, a platen roller 16, and a paper guide 17 (pressing member) are arranged below the upper cover 5.
  • a pickup roller (roller) 12 and a block (discharge guide member) 13 are provided at an end of the paper storage unit 6 on the side close to the printing mechanism unit 14. Is provided.
  • a pressing plate 18 is rotatably supported on the inner surface of the lid 10 facing the paper storage unit 6 side.
  • a coil-shaped urging spring 19 is interposed between the pressing plate 18 and the lid 10, and an urging force is applied to the pressing plate 18 so as to rotate the pressing plate 18 downward.
  • the paper 7 is stacked inside the paper package 9 with the print side facing down in the figure. Have been.
  • the sheet 7 is set in the sheet storage section 6, the lower surface of the lowermost sheet 7 of the stacked sheets 7 is partially exposed from the package material 8.
  • the pressing plate 18 is urged downward by the urging spring 19 described above.
  • the pressing plate 18 presses the portion of the paper 7 exposed from the packaging material 8 via the packaging material 8 against the pickup roller 12 side, and brings the lower surface of the paper 7 into contact with the pickup roller 12 ( See Figure 3).
  • a block body 13 is provided close to the pickup roller 12, and the block body 13 has a separation guide surface 13a inclined with respect to the sheet feeding direction of the pickup roller 12.
  • the paper 7 above the paper 7 to be transported (the second from the bottom) has a positive frictional force from the bottommost paper 7 and a negative friction from the paper (the third from the bottom) on it
  • the force and the braking force received from the separation guide surface 13a work and stay at that position. Therefore, only the lowermost sheet 7 is conveyed, and no double feed occurs.
  • a platen roller 16 is rotatably provided adjacent to the block body 13 (to the right of the separation block 13 in FIG. 3), and a paper guide 17 is arranged close to the outer peripheral surface thereof. You. As shown in the enlarged view of FIG. 4, the paper guide 17 has a concavely curved shape such that the cross section is substantially U-shaped in a horizontal direction along the outer peripheral surface of the platen roller 16. A sliding contact surface 17a is formed. A pressing coil panel 20 is provided between the paper guide 17 and the main body case 2, and the sliding contact surface is provided. 17 a is urged toward the outer peripheral surface of the platen roller 16.
  • the paper 7 is conveyed to the printing unit along the peripheral surface of the platen roller 16 while being pressed against the peripheral surface of the platen roller 16 by the sliding contact surface 17a functioning as a pressing member.
  • the size of the printer can be reduced as compared with a configuration in which another roller or the like is provided to press and urge the sheet 7 against the platen roller 16.
  • the paper 7 separated by the above-described paper separation unit 11 is conveyed by the pick-up processor 12 so that the lower end of the separation block 13 and the paper are directed to the blade roller 16 side. Pass between the guide plates 21.
  • the paper 7 is guided by the guide plate 21 and is sent from the lower surface side (paper supply side) of the platen roller 16 between the platen roller 16 and the paper guide 17, and the paper 7 is While being sandwiched between the outer peripheral surface of the platen roller 16 and the sliding surface 17 a of the paper guide 17, the platen roller 16 is driven to rotate along the peripheral surface of the platen roller 16 by rotating the platen roller 16.
  • the paper is conveyed while being bent and turned in a horizontal U-shape, and reaches the upper surface of the platen roller 16 with the print surface facing upward.
  • the thermal head 15 located on the upper surface side of the platen roller 16 has a heating element 15a as a printing unit.
  • the heating element 15a has a small heating element in the paper width direction.
  • the thermal head 15 is provided so as to be rotatable around a rotation axis 15, and the heating element 15 a can be brought into contact with and separated from the upper surface of the platen roller 16.
  • thermal head 15 is configured to be rotatable in this way is that when the paper 7 is jammed between the platen roller 16 and the paper guide 17, the thermal head 15 is removed. This is to make sure that Do 15 does not get in the way.
  • One end of a torsion coil spring type spring 22 is locked to the thermal head 15 so that the heating element 15 a of the thermal head 15 is biased in a direction in which the heating element 15 a approaches the upper surface of the platen roller 16. Is always added.
  • the paper 7 is transported by the platen roller 16 with the print side facing up. Then, the heating element 15a of the thermal head 15 comes into contact with the upper surface of the paper 7, and printing is performed on the paper 7 at the contacting point.
  • the thermal head 15 is a line head type, and prints arbitrary characters and images on the heat-sensitive paper 7 that is being conveyed for each line extending in the direction perpendicular to the conveyance direction of the paper 7. can do.
  • the printing width when printing per line is set substantially equal to the width of the paper 7 to be printed.
  • the thermal head 15 is used as a print head because thermal paper is used as a recording medium, which eliminates the need for consumables such as ink crispons, and provides ink supply. This is because the mechanism of the printer 1 can be omitted, and the printer 1 can be compactly configured.
  • thermal paper examples include a thermal coloring type having a coloring layer that develops color by heating the thermal head 15 and a thermal punching type in which a perforated layer formed by heating is laminated on a base material layer.
  • a thermal coloring type having a coloring layer that develops color by heating the thermal head 15
  • a thermal punching type in which a perforated layer formed by heating is laminated on a base material layer.
  • a plurality of ribs 13d are provided side by side in the axial direction of the platen roller 16 as shown in FIG.
  • the rib 13 d is provided with a facing surface 13 b facing the peripheral surface of the sheet 7, which will be described later, at a position downstream of the platen roller 16 in the rotation direction of the platen roller 16, and a sheet discharging side. And an inclined paper ejection guide surface 13c (see FIG. 13). Further, the block body 13 is provided with a second rib 13e having a longitudinal direction along the axial direction of the platen roller 16 between the ribs 13d and 13d (see FIG. See Fig. 5 and Fig. 13).
  • the paper 7 after printing by the heating element 15 a of the thermal head 15 is transported by the roller 16 while separating from the peripheral surface of the platen roller 16.
  • the leading end in the transport direction contacts the guide surface 13c.
  • the platen roller 16 rotates, the leading edge of the paper slides on the guide surface 13c and is guided.
  • the sheet 7 is separated from the peripheral surface of the platen roller 16 and transported in the sheet discharge direction (the direction of arrow A in FIG. 4).
  • the paper 7 is discharged to the upper side of the lid 10 through a gap formed between the upper cover 5 of the main body case 2 and the lid 10.
  • the paper transport path extends from the upper surface of the pick-up roller 12 to the lower surface of the platen roller 16 (the paper feeding position for the platen opening 16). From here, the roller 16 is curved by approximately 180 ° along the peripheral surface of the roller 16, then detaches from the upper surface side of the roller 16 and extends obliquely upward to the sheet discharge side. Printing is performed on the paper 7 conveyed on this conveyance path by the general head 15.
  • the printer 1 is required to be configured so that the paper 7 after printing does not enter the gap between the block 13 and the platen roller 16. If the paper 7 enters the gap, the paper may be jammed, or the paper may be wrapped around the platen roller 16 in a double or triple manner.
  • the block 13 (discharge guide member) in which a plurality of ribs 13 d are provided in the axial direction of the platen roller 16 at intervals from each other, is transported by the transporter.
  • the ribs 13 d are respectively provided on an opposing surface 13 b opposing a peripheral surface on the downstream side in the rotation direction of the platen roller 16 from a position where the sheet 7 is separated from the platen roller 16, and a discharge side of the sheet 7. It has an inner surface 13c which is inclined toward the paper discharge plan.
  • a part of the leading side of the paper 7 (for example, the end in the axial direction of the roller 16) is formed on the opposite surface 1 of the rib 13d. 3
  • the paper 7 can be brought into contact with the facing surface even by feeding the platen roller 16. It can be expected that it will not be sent to the 13b side (ie, the gap between the block 13 and the platen roller 16).
  • the paper 7 that is in contact with the opposing surface 13 side of the paper also moves to the paper discharge guide surface 13 c due to the bending of the paper 7, and it is possible to eventually discharge the entire paper 7 normally.
  • the paper 7 enters between the block body 13 and the platen roller 16 unless the leading end of the paper 7 is extremely extreme in such a way as to abut on the opposing surface 13 b side of the rib 13 d. Will be prevented.
  • the block body 13 has a portion opposed to the peripheral surface of the platen roller 16, between the ribs 13 d and 13 d in the axial direction of the platen roller 16.
  • a second rib 13 e having a longitudinal direction is provided.
  • the paper 7 discharged from the paper package 9 is conveyed along the platen roller 16 and its leading end reaches the opposing surface 13b.
  • the paper 7 is discharged from the paper discharge port on the upper surface of the printer 1 in the normal transport path.
  • the leading edge of the sheet 7 does not go to the discharge port, and is conveyed as it is around the platen 16, and the second rib 13 provided on the downstream side of the platen 16 in the rotation direction of the opposing surface 13 b.
  • the printer 1 is configured such that, on the paper transport path, the peripheral surface of the platen roller 16 on the rotation direction upstream side of the platen roller 16 with respect to the heating element portion 15 a (printing portion) on the peripheral surface of the platen roller 16.
  • a paper guide 17 pressing member that presses the paper 7 along is provided.
  • the paper 7 is supplied to the heating element 15a along the curved peripheral surface of the platen roller 16 while being pressed against the peripheral surface of the platen opening 16 by the paper guide 17 from the supply side.
  • the printer 1 can be downsized. That is, the paper guide 17 serves to bend the paper 7 and guide its direction, and presses the paper 7 against the platen roller 16 to cause a frictional force between the two 7 and 16 to convey the paper. Since it plays a role in both of these functions, it is possible to use a compact configuration without taking up installation space and to reduce the manufacturing cost compared to a configuration in which separate parts are provided for each role. can do.
  • the block 13 is further provided with a projection 13 f (a regulating portion) on the lower end side of the surface facing the platen roller 16.
  • a projection 13 f a regulating portion
  • the restricting portion is not limited to the block 13 having the rib-like portion as described above, but may be applied to a block having another shape.
  • an opposing surface 33 b facing the peripheral surface of the paper 7 on the downstream side in the rotation direction of the platen roller 16 from the position where the paper 7 is separated from the platen roller 16, and the paper 7
  • the lower end of the opposing surface 3 3b in the block 33 having a paper discharge guide surface 3 3c for contacting the front side in the transport direction and turning the paper 7 away from the peripheral surface of the platen roller 16 It is conceivable to provide a protrusion 33d (restriction part) in the entire width direction of the.
  • the paper 7 can be guided in the paper discharge direction, and even if the paper 7 enters between the discharge guide member 33 and the platen roller 16, the paper 7 remains in the protrusion 3 3 d. It will be clogged by contact. Therefore, the situation in which the platen roller 16 winds the paper 7 in multiple layers is prevented.
  • the restricting section (13f ⁇ 33d) is located on the downstream side in the roller rotation direction from the position where the paper 7 is separated from the platen roller 16 and the paper feed position of the paper 7 to the platen roller 16. If it is provided at a position on the upstream side in the roller rotation direction, it is sufficient to achieve the effect of preventing multiple winding of the sheet 7 around the platen roller 16.
  • a plurality of ribs are provided on the block body 13 functioning as a discharge guide member, and each rib is provided with a guide surface. If one of the ribs touches the guide surface side, it can be expected that the paper will not enter the gap between the discharge guide member and the roller. Therefore, the paper transport trouble such as paper jam and paper wrapping around the roller is reduced. Furthermore, even if the paper enters between the discharge guide member and the roller, the leading end of the paper in the transport direction contacts the second rib, and further transport is prevented, so that the paper is transported to the roller. The situation of multiple windings is prevented.
  • the paper is pressed against the peripheral surface of the roller by the pressing member while being pressed against the peripheral surface of the roller. Since the paper is supplied to the printing unit along with the roller, the printer can be downsized compared to a configuration in which another roller or the like is provided to press the paper against the roller.
  • a regulating portion is provided to abut the leading side of the paper in the transport direction to prevent further transport. This prevents multiple wraps of paper on the roll.

Abstract

L'invention concerne une imprimante comprenant un tambour (16) dont la rotation permet une alimentation en papier, une partie d'impression (15) destinée à l'impression du papier sur le tambour, et un trajet d'alimentation du papier courbe partant du côté alimentation du papier, passant sur la périphérie du tambour, quittant cette surface et passant du côté de distribution où sont disposés un élément de guidage (13), guidant le papier quittant la surface périphérique du tambour jusqu'au côté de distribution, et plusieurs nervures (13d) comportant des faces de guidage dirigeant le papier dans la direction de sortie de surface périphérique du tambour en contact avec le côté entête du papier dans la direction d'alimentation, ces nervures étant positionnées, sur l'élément de guidage, parallèles l'une à l'autre à des intervalle spécifiés dans la direction axiale du tambour.
PCT/JP2003/002165 2002-03-26 2003-02-26 Imprimante WO2003080351A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003211735A AU2003211735A1 (en) 2002-03-26 2003-02-26 Printer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002-84903 2002-03-26
JP2002084903A JP4308476B2 (ja) 2002-03-26 2002-03-26 プリンタ

Publications (1)

Publication Number Publication Date
WO2003080351A1 true WO2003080351A1 (fr) 2003-10-02

Family

ID=28449228

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/002165 WO2003080351A1 (fr) 2002-03-26 2003-02-26 Imprimante

Country Status (3)

Country Link
JP (1) JP4308476B2 (fr)
AU (1) AU2003211735A1 (fr)
WO (1) WO2003080351A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4229021B2 (ja) * 2004-03-05 2009-02-25 ブラザー工業株式会社 平板状プラテンおよびこれを用いたインクジェット記録装置
JP2006026931A (ja) * 2004-07-12 2006-02-02 Brother Ind Ltd 印刷装置
JP6425034B2 (ja) * 2015-09-18 2018-11-21 ブラザー工業株式会社 携帯型プリンタ

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6417751U (fr) * 1987-07-23 1989-01-30
JPH01502332A (ja) * 1987-03-02 1989-08-17 イーストマン・コダック・カンパニー 選択可能な印書媒体モードを有するコンパクトなプリンタ／フィーダ
JPH0462081A (ja) * 1990-06-25 1992-02-27 Matsushita Electric Ind Co Ltd インパクトプリンタ
JPH04107046U (ja) * 1991-02-26 1992-09-16 日本電気株式会社 プリンタ
JPH061514A (ja) * 1992-06-17 1994-01-11 Canon Inc シート搬送装置
JPH06155836A (ja) * 1992-11-18 1994-06-03 Tokyo Electric Co Ltd インクジェットプリンタ

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01502332A (ja) * 1987-03-02 1989-08-17 イーストマン・コダック・カンパニー 選択可能な印書媒体モードを有するコンパクトなプリンタ／フィーダ
JPS6417751U (fr) * 1987-07-23 1989-01-30
JPH0462081A (ja) * 1990-06-25 1992-02-27 Matsushita Electric Ind Co Ltd インパクトプリンタ
JPH04107046U (ja) * 1991-02-26 1992-09-16 日本電気株式会社 プリンタ
JPH061514A (ja) * 1992-06-17 1994-01-11 Canon Inc シート搬送装置
JPH06155836A (ja) * 1992-11-18 1994-06-03 Tokyo Electric Co Ltd インクジェットプリンタ

Also Published As

Publication number Publication date
JP4308476B2 (ja) 2009-08-05
JP2003276262A (ja) 2003-09-30
AU2003211735A1 (en) 2003-10-08

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