JP2020083629A - シート搬送装置および画像形成装置 - Google Patents
シート搬送装置および画像形成装置 Download PDFInfo
- Publication number
- JP2020083629A JP2020083629A JP2018225289A JP2018225289A JP2020083629A JP 2020083629 A JP2020083629 A JP 2020083629A JP 2018225289 A JP2018225289 A JP 2018225289A JP 2018225289 A JP2018225289 A JP 2018225289A JP 2020083629 A JP2020083629 A JP 2020083629A
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- Prior art keywords
- sheet
- motor
- roller
- unit
- transport
- Prior art date
- Legal status (The legal status 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 status listed.)
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- 230000008859 change Effects 0.000 claims description 45
- 230000032258 transport Effects 0.000 abstract description 70
- 238000000926 separation method Methods 0.000 description 45
- 238000012546 transfer Methods 0.000 description 39
- 238000004364 calculation method Methods 0.000 description 18
- 238000001514 detection method Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 14
- 230000007423 decrease Effects 0.000 description 10
- 230000006866 deterioration Effects 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 6
- 238000012840 feeding operation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/65—Apparatus which relate to the handling of copy material
- G03G15/6529—Transporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
- B65H5/062—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
- B65H3/0607—Rollers or like rotary separators cooperating with means for automatically separating the pile from roller or rotary separator after a separation step
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
- B65H3/52—Friction retainers acting on under or rear side of article being separated
- B65H3/5246—Driven retainers, i.e. the motion thereof being provided by a dedicated drive
- B65H3/5253—Driven retainers, i.e. the motion thereof being provided by a dedicated drive the retainers positioned under articles separated from the top of the pile
- B65H3/5261—Retainers of the roller type, e.g. rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
- B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
- B65H9/004—Deskewing sheet by abutting against a stop, i.e. producing a buckling of the sheet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
- B65H9/004—Deskewing sheet by abutting against a stop, i.e. producing a buckling of the sheet
- B65H9/006—Deskewing sheet by abutting against a stop, i.e. producing a buckling of the sheet the stop being formed by forwarding means in stand-by
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/50—Occurence
- B65H2511/52—Defective operating conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/30—Forces; Stresses
- B65H2515/32—Torque e.g. braking torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/84—Quality; Condition, e.g. degree of wear
Abstract
Description
221(42) ピックアップコロ(シート供給手段)
251 給紙コロ(第1給紙ローラ)
252 給紙モータ(第1モータ)
255(45) 分離コロ(第2給紙ローラ)
261 搬送ガイド
271 搬送ローラ
272 搬送モータ(第2モータ)
281 ゲート(付き当て板)
513 ゲート駆動モータ駆動制御手段(付き当て板制御手段)
553 判断手段
Claims (8)
- シートを搬送する方向において順に、
シート供給手段と、
第1給紙ローラと、第2給紙ローラと、前記第1給紙ローラを回転させる第1モータを備える第1シート搬送手段と、
搬送ローラと該搬送ローラを回転させる第2モータを備える第2シート搬送手段と、を有し、
前記第1シート搬送手段は、前記第1給紙ローラと前記第2給紙ローラとの間にシートを挟み、前記第1給紙ローラの回転により前記第2シート搬送手段に前記シートを搬送するシート搬送装置であって、
シートの搬送状態を判断する判断手段を備え、
前記判断手段は、前記第1シート搬送手段の前記第1モータのトルクまたは前記第2シート搬送手段の前記第2モータのトルクの、少なくともどちらか一方に基づいて、シートの搬送状態を判断するシート搬送装置。 - 前記判断手段は、前記第1シート搬送手段の前記第1モータのトルクまたは前記第2シート搬送手段の前記第2モータのトルクのうち、変化量の大きい方のモータのトルクに基づいて、シートの搬送状態を判断する請求項1記載のシート搬送装置。
- 前記第1シート搬送手段から送りだされたシートを前記第2シート搬送手段に導く搬送ガイドを備えることを特徴とする、請求項1または2記載シート搬送装置。
- 前記搬送ガイドは、シートが搬送される側の面が内側になるように、湾曲していることを特徴とする請求項3記載シート搬送装置。
- 前記第1シート搬送手段と前記第2シート搬送手段との間に、シートに所定のたるみを発生させるたるみ形成手段を備えることを特徴とする、請求項1〜3の何れか記載のシート搬送装置。
- 前記たるみ形成手段は、シート先端を突き当てる付き当て板と、該付き当て板の姿勢を制御する付き当て板制御手段を有することを特徴とする請求項5記載のシート搬送装置。
- 前記第1ローラおよび前記第2ローラの回転タイミングにより、前記第1シート搬送手段と前記第2シート搬送手段との間でシートに所定のたるみを発生させることを特徴とする、請求項1〜3の何れか記載のシート搬送装置。
- 請求項1〜7の何れか記載のシート搬送装置を有する画像形成装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018225289A JP7225739B2 (ja) | 2018-11-30 | 2018-11-30 | シート搬送装置および画像形成装置 |
EP19209613.9A EP3674236B1 (en) | 2018-11-30 | 2019-11-18 | Sheet conveying device and image forming apparatus incorporating the sheet conveying device |
US16/694,006 US11126127B2 (en) | 2018-11-30 | 2019-11-25 | Sheet conveying device and image forming apparatus incorporating the sheet conveying device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018225289A JP7225739B2 (ja) | 2018-11-30 | 2018-11-30 | シート搬送装置および画像形成装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020083629A true JP2020083629A (ja) | 2020-06-04 |
JP7225739B2 JP7225739B2 (ja) | 2023-02-21 |
Family
ID=68609903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018225289A Active JP7225739B2 (ja) | 2018-11-30 | 2018-11-30 | シート搬送装置および画像形成装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US11126127B2 (ja) |
EP (1) | EP3674236B1 (ja) |
JP (1) | JP7225739B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7456222B2 (ja) * | 2020-03-23 | 2024-03-27 | 株式会社リコー | 搬送装置および画像形成装置 |
US11722613B1 (en) * | 2022-03-21 | 2023-08-08 | Toshiba Tec Kabushiki Kaisha | Image forming device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0558507A (ja) * | 1991-09-05 | 1993-03-09 | Mitsubishi Electric Corp | ペーパジヤム検知回路 |
JPH0826526A (ja) * | 1994-07-18 | 1996-01-30 | Ricoh Co Ltd | シート搬送装置 |
JP2000198575A (ja) * | 1999-01-06 | 2000-07-18 | Canon Inc | 画像形成装置 |
JP2017202934A (ja) * | 2016-05-09 | 2017-11-16 | キヤノン株式会社 | シート搬送装置、該シート搬送装置を備えた原稿読取装置及び画像形成装置 |
JP2018135191A (ja) * | 2017-02-23 | 2018-08-30 | キヤノン株式会社 | シート搬送装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06191686A (ja) * | 1992-12-24 | 1994-07-12 | Ricoh Co Ltd | 給紙装置 |
JP3666833B2 (ja) | 1996-08-05 | 2005-06-29 | 株式会社リコー | シート分離装置、これを用いた画像形成装置 |
JP3959328B2 (ja) * | 2002-03-20 | 2007-08-15 | 株式会社東芝 | 紙葉類取出装置および紙葉類取出方法 |
US7455286B2 (en) * | 2005-06-28 | 2008-11-25 | Hewlett-Packard Development Company, L.P. | Sheet separation using two torque motors |
KR101581725B1 (ko) * | 2011-07-21 | 2016-01-21 | 노틸러스효성 주식회사 | 현금 및 수표 번들 입금기 |
JP2014125347A (ja) | 2012-12-27 | 2014-07-07 | Ricoh Co Ltd | シート供給用部材の劣化検出装置、シート供給装置並びに画像形成装置 |
JP6459449B2 (ja) * | 2014-12-01 | 2019-01-30 | コニカミノルタ株式会社 | シート搬送装置、原稿読取装置および画像形成装置 |
US9776819B2 (en) | 2014-12-09 | 2017-10-03 | Ricoh Company, Ltd. | Sheet conveying device and image forming apparatus incorporating the sheet conveying device |
EP3243775B1 (en) * | 2016-05-09 | 2020-11-25 | Canon Kabushiki Kaisha | Sheet conveying apparatus that feeds sheet members, and document reading apparatus and image forming apparatus that include the sheet conveying apparatus |
US10530950B2 (en) | 2017-02-22 | 2020-01-07 | Ricoh Company, Ltd. | Sheet conveying device, image forming apparatus incorporating the sheet conveying device, and post processing device incorporating the sheet conveying device |
US10358309B2 (en) | 2017-03-21 | 2019-07-23 | Ricoh Company, Ltd. | Sheet conveying device, image forming apparatus incorporating the sheet conveying device, and post processing device incorporating the sheet conveying device |
EP3415451B1 (en) | 2017-06-15 | 2020-09-16 | Ricoh Company, Ltd. | Sheet conveying device and image forming apparatus incorporating the sheet conveying device |
-
2018
- 2018-11-30 JP JP2018225289A patent/JP7225739B2/ja active Active
-
2019
- 2019-11-18 EP EP19209613.9A patent/EP3674236B1/en active Active
- 2019-11-25 US US16/694,006 patent/US11126127B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0558507A (ja) * | 1991-09-05 | 1993-03-09 | Mitsubishi Electric Corp | ペーパジヤム検知回路 |
JPH0826526A (ja) * | 1994-07-18 | 1996-01-30 | Ricoh Co Ltd | シート搬送装置 |
JP2000198575A (ja) * | 1999-01-06 | 2000-07-18 | Canon Inc | 画像形成装置 |
JP2017202934A (ja) * | 2016-05-09 | 2017-11-16 | キヤノン株式会社 | シート搬送装置、該シート搬送装置を備えた原稿読取装置及び画像形成装置 |
JP2018135191A (ja) * | 2017-02-23 | 2018-08-30 | キヤノン株式会社 | シート搬送装置 |
Also Published As
Publication number | Publication date |
---|---|
US11126127B2 (en) | 2021-09-21 |
EP3674236A1 (en) | 2020-07-01 |
JP7225739B2 (ja) | 2023-02-21 |
EP3674236B1 (en) | 2021-09-08 |
US20200174415A1 (en) | 2020-06-04 |
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