JP5235961B2 - 画像形成装置 - Google Patents
画像形成装置 Download PDFInfo
- Publication number
- JP5235961B2 JP5235961B2 JP2010215927A JP2010215927A JP5235961B2 JP 5235961 B2 JP5235961 B2 JP 5235961B2 JP 2010215927 A JP2010215927 A JP 2010215927A JP 2010215927 A JP2010215927 A JP 2010215927A JP 5235961 B2 JP5235961 B2 JP 5235961B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- unit
- image forming
- registration
- correction unit
- 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/047—Detection, control or error compensation of scanning velocity or position
- H04N1/053—Detection, control or error compensation of scanning velocity or position in main scanning direction, e.g. synchronisation of line start or picture elements in a line
-
- 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
- G03G15/6561—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 sheet registration
-
- 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
- G03G15/6561—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 sheet registration
- G03G15/6564—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 sheet registration with correct timing of sheet feeding
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/0057—Conveying sheets before or after scanning
- H04N1/00572—Conveying sheets before or after scanning with refeeding for double-sided scanning, e.g. using one scanning head for both sides of a sheet
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/0057—Conveying sheets before or after scanning
- H04N1/00572—Conveying sheets before or after scanning with refeeding for double-sided scanning, e.g. using one scanning head for both sides of a sheet
- H04N1/00575—Inverting the sheet prior to refeeding
- H04N1/0058—Inverting the sheet prior to refeeding using at least one dead-end path, e.g. using a sheet ejection path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/0057—Conveying sheets before or after scanning
- H04N1/00599—Using specific components
- H04N1/00602—Feed rollers
-
- 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
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/23—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
- G03G15/231—Arrangements for copying on both sides of a recording or image-receiving material
- G03G15/232—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member
- G03G15/234—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member by inverting and refeeding the image receiving material with an image on one face to the recording member to transfer a second image on its second face, e.g. by using a duplex tray; Details of duplex trays or inverters
- G03G15/235—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member by inverting and refeeding the image receiving material with an image on one face to the recording member to transfer a second image on its second face, e.g. by using a duplex tray; Details of duplex trays or inverters the image receiving member being preconditioned before transferring the second image, e.g. decurled, or the second image being formed with different operating parameters, e.g. a different fixing temperature
-
- 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
- G03G2215/00016—Special arrangement of entire apparatus
- G03G2215/00021—Plural substantially independent image forming units in cooperation, e.g. for duplex, colour or high-speed simplex
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/113—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors
- H04N1/1135—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors for the main-scan only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/12—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-scanning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04701—Detection of scanning velocity or position
- H04N2201/0471—Detection of scanning velocity or position using dedicated detectors
- H04N2201/04712—Detection of scanning velocity or position using dedicated detectors using unbroken arrays of detectors, i.e. detectors mounted on the same substrate
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04701—Detection of scanning velocity or position
- H04N2201/04737—Detection of scanning velocity or position by detecting the scanned medium directly, e.g. a leading edge
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04753—Control or error compensation of scanning position or velocity
- H04N2201/04756—Control or error compensation of scanning position or velocity by controlling the position or movement of the sheet, the sheet support or the photoconductive surface
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04753—Control or error compensation of scanning position or velocity
- H04N2201/04794—Varying the control or compensation during the scan, e.g. using continuous feedback or from line to line
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Registering Or Overturning Sheets (AREA)
- Counters In Electrophotography And Two-Sided Copying (AREA)
- Fixing For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Description
Claims (3)
- シートに画像を形成する第1画像形成部と、前記第1画像形成部のシート搬送方向下流側に設けられ、シートに画像を形成する第2画像形成部と、を備えた画像形成装置において、
前記第1画像形成部に設けられ、トナー画像をシートに定着させる第1定着手段と、
前記第1画像形成部のシート搬送方向上流側に設けられ、前記第1画像形成部に搬送されるシートを、順次、シート搬送方向と直交する幅方向に基準位置から所定位置まで段階的に移動させ、所定位置に達した後は、再度、前記基準位置から前記所定位置まで段階的に移動させ、前記シートの幅方向の側端位置を補正する第1補正部と、
前記第2画像形成部に設けられ、トナー画像をシートに定着させる第2定着手段と、
前記第1画像形成部及び前記第2画像形成部の間に設けられ、前記第1定着手段を通過したシートを、順次、幅方向に基準位置から所定位置まで段階的に移動させ、所定位置に達した後は、再度、前記基準位置から前記所定位置まで段階的に移動させ、前記シートの幅方向の側端位置を補正する第2補正部と、
前記第1補正部及び前記第2補正部を制御する制御部と、を備え、
前記制御部は、前記第1補正部によりシートの側端位置を補正する際には、シートを幅方向の一方の方向に段階的に移動させ、前記第1定着手段を通過したシートの側端位置を前記第2補正部により補正する際には、前記第1補正部によるシートの移動方向とは逆の方向にシートを段階的に移動させるように前記第1補正部及び前記第2補正部を制御することを特徴とする画像形成装置。 - 前記第1補正部によりシートの側端位置を補正する際のシートの移動範囲と、前記第2補正部によりシートの側端位置を補正する際のシートの移動範囲とは幅方向において重複しないことを特徴とする請求項1記載の画像形成装置。
- 前記制御部は、前記第2補正部によりシートの側端位置を補正する際には、前記第1補正部によりシートの側端位置を補正する際のシートの幅方向の移動量に応じてシートを段階的に移動させることを特徴とする請求項1記載の画像形成装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010215927A JP5235961B2 (ja) | 2010-09-27 | 2010-09-27 | 画像形成装置 |
US13/226,652 US20120075681A1 (en) | 2010-09-27 | 2011-09-07 | Image forming apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010215927A JP5235961B2 (ja) | 2010-09-27 | 2010-09-27 | 画像形成装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012073286A JP2012073286A (ja) | 2012-04-12 |
JP5235961B2 true JP5235961B2 (ja) | 2013-07-10 |
Family
ID=45870386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010215927A Expired - Fee Related JP5235961B2 (ja) | 2010-09-27 | 2010-09-27 | 画像形成装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20120075681A1 (ja) |
JP (1) | JP5235961B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021096399A (ja) * | 2019-12-18 | 2021-06-24 | 株式会社リコー | 画像形成装置及び調整方法 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5623173B2 (ja) | 2010-07-30 | 2014-11-12 | キヤノン株式会社 | シート搬送装置、画像形成装置及び画像読取装置 |
JP5822585B2 (ja) | 2011-07-28 | 2015-11-24 | キヤノン株式会社 | 画像形成装置 |
JP2014106422A (ja) * | 2012-11-28 | 2014-06-09 | Ricoh Co Ltd | 画像形成装置、画像補正方法 |
JP6282150B2 (ja) | 2014-03-19 | 2018-02-21 | キヤノン株式会社 | シート搬送装置および画像形成装置 |
JP6742747B2 (ja) * | 2016-02-16 | 2020-08-19 | キヤノン株式会社 | 画像形成装置 |
JP7056044B2 (ja) * | 2017-09-11 | 2022-04-19 | コニカミノルタ株式会社 | 用紙処理装置、画像形成システム及びプログラム |
JP7309375B2 (ja) | 2019-01-31 | 2023-07-18 | キヤノン株式会社 | シート搬送装置 |
JP2022127944A (ja) * | 2021-02-22 | 2022-09-01 | 富士フイルムビジネスイノベーション株式会社 | 検出装置、及び画像形成装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4122751B2 (ja) * | 2001-10-26 | 2008-07-23 | 富士ゼロックス株式会社 | 画像形成装置 |
US20070041049A1 (en) * | 2005-08-16 | 2007-02-22 | Fuji Xerox Co., Ltd. | Image forming system |
US8308154B2 (en) * | 2008-02-25 | 2012-11-13 | Canon Kabushiki Kaisha | Image forming apparatus, image forming system, and control method therefor |
JP4572951B2 (ja) * | 2008-04-11 | 2010-11-04 | 富士ゼロックス株式会社 | 記録材移動装置及び画像形成装置 |
JP5100509B2 (ja) * | 2008-05-28 | 2012-12-19 | キヤノン株式会社 | シート搬送装置、画像形成装置及び画像読取装置 |
JP5268545B2 (ja) * | 2008-10-06 | 2013-08-21 | キヤノン株式会社 | 画像形成装置 |
JP5349989B2 (ja) * | 2009-01-29 | 2013-11-20 | キヤノン株式会社 | 画像形成装置 |
-
2010
- 2010-09-27 JP JP2010215927A patent/JP5235961B2/ja not_active Expired - Fee Related
-
2011
- 2011-09-07 US US13/226,652 patent/US20120075681A1/en not_active Abandoned
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021096399A (ja) * | 2019-12-18 | 2021-06-24 | 株式会社リコー | 画像形成装置及び調整方法 |
JP7425986B2 (ja) | 2019-12-18 | 2024-02-01 | 株式会社リコー | 画像形成装置及び調整方法 |
Also Published As
Publication number | Publication date |
---|---|
US20120075681A1 (en) | 2012-03-29 |
JP2012073286A (ja) | 2012-04-12 |
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