JP5393261B2 - 画像形成装置 - Google Patents
画像形成装置 Download PDFInfo
- Publication number
- JP5393261B2 JP5393261B2 JP2009130469A JP2009130469A JP5393261B2 JP 5393261 B2 JP5393261 B2 JP 5393261B2 JP 2009130469 A JP2009130469 A JP 2009130469A JP 2009130469 A JP2009130469 A JP 2009130469A JP 5393261 B2 JP5393261 B2 JP 5393261B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- roller
- registration roller
- registration
- roller portion
- 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.)
- Active
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Classifications
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- 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
- 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
- B65H9/06—Movable stops or gauges, e.g. rising and falling front stops
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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
- G03G15/6555—Handling of sheet copy material taking place in a specific part of the copy material feeding path
- G03G15/6558—Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point
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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
- G03G15/6555—Handling of sheet copy material taking place in a specific part of the copy material feeding path
- G03G15/6558—Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point
- G03G15/6567—Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point for deskewing or aligning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/13—Details of longitudinal profile
- B65H2404/133—Limited number of active elements on common axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/14—Roller pairs
- B65H2404/143—Roller pairs driving roller and idler roller arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/06—Office-type machines, e.g. photocopiers
-
- 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
- G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
- G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
- G03G15/1665—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
- G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
- G03G2215/00405—Registration device
Description
Claims (2)
- 画像形成部にシートを搬送するシート搬送ローラ対を備えた画像形成装置において、
前記シート搬送ローラ対は、
弾性体により構成され、軸方向の中心に対して対称に配置された第1ローラ部及び前記第1ローラ部の軸方向両側に配置された第2ローラ部を備えた駆動ローラと、
前記駆動ローラの前記第1ローラ部と圧接する第1従動ローラ部及び前記第2ローラ部と圧接する第2従動ローラ部を軸方向に備えた従動ローラと、を具備し、
前記第1ローラ部と前記第1従動ローラ部との圧接部のシート搬送方向に沿った長さが、前記第2ローラ部と前記第2従動ローラ部との圧接部のシート搬送方向に沿った長さよりも長くなるように前記第1ローラ部の硬度を前記第2ローラ部の硬度より小さくし、前記第1従動ローラ部の外径を前記第2従動ローラ部の外径より大きくしたことを特徴とする画像形成装置。 - シート搬送方向と逆方向に付勢手段により付勢され、前記シート搬送ローラ対に向かうシートに前記シート搬送ローラ対のシート搬送方向上流で当接してシートの斜行を補正し、斜行が補正されたシートにより押圧されて前記付勢手段の付勢力に抗しながら揺動する斜行補正部材を備えていることを特徴とする請求項1記載の画像形成装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009130469A JP5393261B2 (ja) | 2009-05-29 | 2009-05-29 | 画像形成装置 |
US12/785,827 US8328193B2 (en) | 2009-05-29 | 2010-05-24 | Image forming apparatus |
CN2010101891645A CN101923302A (zh) | 2009-05-29 | 2010-05-25 | 成像装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009130469A JP5393261B2 (ja) | 2009-05-29 | 2009-05-29 | 画像形成装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010275080A JP2010275080A (ja) | 2010-12-09 |
JP5393261B2 true JP5393261B2 (ja) | 2014-01-22 |
Family
ID=43219330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009130469A Active JP5393261B2 (ja) | 2009-05-29 | 2009-05-29 | 画像形成装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8328193B2 (ja) |
JP (1) | JP5393261B2 (ja) |
CN (1) | CN101923302A (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI363701B (en) * | 2009-09-18 | 2012-05-11 | Avision Inc | Sheet transporting apparatus having a gear assembly for fixing position of rotating shaft |
JP2012106837A (ja) * | 2010-11-17 | 2012-06-07 | Konica Minolta Business Technologies Inc | 用紙搬送装置及び画像形成装置 |
US9428356B2 (en) | 2011-08-22 | 2016-08-30 | Canon Kabushiki Kaisha | Sheet skew feed correction apparatus, image forming apparatus and skew feed correction apparatus |
JP2016108064A (ja) * | 2014-12-03 | 2016-06-20 | セイコーエプソン株式会社 | 印刷装置 |
JP5940139B1 (ja) * | 2014-12-24 | 2016-06-29 | キヤノン株式会社 | 回転軸、シート搬送装置及び画像形成装置 |
JP2016137987A (ja) * | 2015-01-29 | 2016-08-04 | 株式会社リコー | 搬送装置、及び、画像形成装置 |
JP6545028B2 (ja) * | 2015-07-27 | 2019-07-17 | キヤノン株式会社 | シート搬送装置及び画像形成装置 |
JP6604547B2 (ja) * | 2016-01-27 | 2019-11-13 | 株式会社リコー | シート搬送装置及び画像形成装置 |
JP6922245B2 (ja) * | 2017-02-17 | 2021-08-18 | 富士フイルムビジネスイノベーション株式会社 | 用紙搬送装置及び画像形成装置 |
CN109795904B (zh) * | 2017-11-17 | 2020-09-01 | 柯尼卡美能达办公系统研发(无锡)有限公司 | 读取装置、自动原稿搬送装置以及图像形成装置 |
JP2020059580A (ja) * | 2018-10-10 | 2020-04-16 | コニカミノルタ株式会社 | シート搬送装置、およびそれを備えた画像形成装置 |
US11254536B2 (en) | 2018-10-19 | 2022-02-22 | Canon Kabushiki Kaisha | Image forming apparatus |
JP2021187610A (ja) * | 2020-05-29 | 2021-12-13 | キヤノン株式会社 | シート排出装置及び画像形成装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03243551A (ja) * | 1990-02-19 | 1991-10-30 | Fuji Xerox Co Ltd | 用紙搬送装置 |
JP3768578B2 (ja) * | 1996-01-08 | 2006-04-19 | キヤノン株式会社 | シート斜行補正装置及びシート搬送装置及び画像形成装置 |
JP3938073B2 (ja) * | 2003-03-07 | 2007-06-27 | キヤノン株式会社 | 画像形成装置 |
US7300055B2 (en) * | 2003-04-17 | 2007-11-27 | Kyocera Mita Corporation | Image forming apparatus |
JP2004352402A (ja) * | 2003-05-27 | 2004-12-16 | Sharp Corp | シート搬送装置、画像読取装置および画像形成装置 |
KR100561442B1 (ko) | 2004-08-16 | 2006-03-17 | 삼성전자주식회사 | 용지이송유닛 및 이를 채용한 화상형성장치 |
JP2006312543A (ja) * | 2005-05-09 | 2006-11-16 | Canon Inc | シート搬送装置及び画像形成装置 |
JP2007001713A (ja) * | 2005-06-23 | 2007-01-11 | Fuji Xerox Co Ltd | シート搬送機構、及び画像形成装置 |
JP4958670B2 (ja) * | 2007-07-24 | 2012-06-20 | キヤノン株式会社 | 画像処理装置 |
JP5169707B2 (ja) * | 2007-10-12 | 2013-03-27 | 株式会社リコー | レジスト調整装置及び画像形成装置 |
-
2009
- 2009-05-29 JP JP2009130469A patent/JP5393261B2/ja active Active
-
2010
- 2010-05-24 US US12/785,827 patent/US8328193B2/en active Active
- 2010-05-25 CN CN2010101891645A patent/CN101923302A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
US8328193B2 (en) | 2012-12-11 |
US20100301546A1 (en) | 2010-12-02 |
JP2010275080A (ja) | 2010-12-09 |
CN101923302A (zh) | 2010-12-22 |
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