JP2004163931A - ゆがみを軽減するために両面複写機でシートの位置を合わせる方法 - Google Patents
ゆがみを軽減するために両面複写機でシートの位置を合わせる方法 Download PDFInfo
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- JP2004163931A JP2004163931A JP2003367437A JP2003367437A JP2004163931A JP 2004163931 A JP2004163931 A JP 2004163931A JP 2003367437 A JP2003367437 A JP 2003367437A JP 2003367437 A JP2003367437 A JP 2003367437A JP 2004163931 A JP2004163931 A JP 2004163931A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims description 37
- 238000005259 measurement Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 238000012546 transfer Methods 0.000 description 8
- 238000003825 pressing Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000013500 data storage Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000000007 visual 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
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/0009—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material
- B41J13/0045—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material concerning sheet refeed sections of automatic paper handling systems, e.g. intermediate stackers
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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
- B41J11/0095—Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end
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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
- 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
- B65H9/002—Registering, e.g. orientating, articles; Devices therefor changing orientation of sheet by only controlling movement of the forwarding means, i.e. without the use of stop or register wall
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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
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
- B65H9/20—Assisting by photoelectric, sonic, or pneumatic indicators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/20—Continuous handling processes
- B65H2301/23—Continuous handling processes of multiple materials in parallel to each other
- B65H2301/231—Recto verso portions of a single material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/30—Orientation, displacement, position of the handled material
- B65H2301/33—Modifying, selecting, changing orientation
- B65H2301/331—Skewing, correcting skew, i.e. changing slightly orientation of material
-
- 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
- B65H2511/20—Location in space
- B65H2511/24—Irregularities, e.g. in orientation or skewness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/13—Parts concerned of the handled material
- B65H2701/131—Edges
- B65H2701/1313—Edges trailing edge
Landscapes
- Registering Or Overturning Sheets (AREA)
- Counters In Electrophotography And Two-Sided Copying (AREA)
- Controlling Sheets Or Webs (AREA)
- Paper Feeding For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
【選択図】 図4
Description
α=(90度−β1)+(90度−β2)または180度−(β1+β2)
Claims (9)
- 両面複写機でコピー媒体のシートの位置を合わせ、前記シートの表面と裏面にコピーされるそれぞれの画像間の位置のずれを軽減するための方法であって、前記方法は、
第1の通過の間、第1の画像が前記シートの前記表面に複写される前に、位置合わせの目標角度と前記シートの後縁との間のゆがみエラー角度を測定することと、
前記ゆがみエラー角度を補償するために、第2の通過の間前記シートの前記位置合わせ目標角度を調節し、前記第1の画像と、前記シートの前記裏面に複写される第2の画像との間の位置のずれを軽減することと
を含む前記方法。 - 前記位置合わせ目標角度は、90度に等しい請求項1に記載の方法。
- 前記第2の通過に関する前記位置合わせ目標角度は、(90度+前記ゆがみエラー角度)に等しい値に調節される請求項2に記載の方法。
- 前記ゆがみエラーは、前記シートがセンサ上を通過するときに前記シートの後縁を感知する、前記シートの上と下の近くに配置された1対の前記センサによって測定される請求項3に記載の方法。
- 前記ゆがみエラー角度は、前記第1の通過の後記憶され、ついで前記第2の通過の間検索される請求項4に記載の方法。
- 両面複写機でコピー媒体の特定のシートの位置を合わせ、前記特定のシートの表面と裏面にコピーされるそれぞれの画像間の位置のずれを軽減する方法であって、前記方法は、
前記シートの前記表面に画像が複写される第1の通過の間における前記特定のシートがシート位置合わせ機構を通過するときに、90度である所望の位置合わせ目標角度と、前記特定のシートの後縁の実際の角度との間のゆがみエラー角度を測定することと、
前記測定されたゆがみエラー角度を表す信号を生成することと、
前記特定のシートに関して前記信号を記憶することと、
前記特定のシートの前記裏面に画像が複写される間における、第2の通過のために前記特定のシートが給紙されるときに、前記信号を検索することと、
前記第2の通過の間に、前記特定のシートが前記シート位置合わせ機構を通過する前に、前記ゆがみエラー角度を補償する前記シート位置合わせ機構について新しい位置合わせ目標角度を設定することと
を含む前記方法。 - 前記新しい位置合わせ目標角度は、(90度+前記ゆがみエラー角度)に等しい請求項6に記載の方法。
- 前記ゆがみエラーは、前記シートがセンサ上を通過するときに前記シートの前記後縁の上部と下部をそれぞれ感知する、前記シート位置合わせ機構内の1対の前記センサによって測定される請求項7に記載の方法。
- 前記ゆがみエラーの測定は、前記それぞれのセンサが前記シートの前記後縁の上部と下部を検出したときの差から導出される請求項8に記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42366902P | 2002-11-05 | 2002-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2004163931A true JP2004163931A (ja) | 2004-06-10 |
Family
ID=32108168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003367437A Pending JP2004163931A (ja) | 2002-11-05 | 2003-10-28 | ゆがみを軽減するために両面複写機でシートの位置を合わせる方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US6988725B2 (ja) |
EP (1) | EP1418142A3 (ja) |
JP (1) | JP2004163931A (ja) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005205759A (ja) * | 2004-01-23 | 2005-08-04 | Ricoh Printing Systems Ltd | 両面印刷システム |
JP4708993B2 (ja) * | 2005-01-14 | 2011-06-22 | キヤノン株式会社 | 印刷システム、制御方法及びプログラム |
US7437120B2 (en) * | 2005-01-31 | 2008-10-14 | Xerox Corporation | Optical sensor for monitoring motion of a blank sheet |
US7422210B2 (en) * | 2005-03-04 | 2008-09-09 | Xerox Corporation | Sheet deskewing system with final correction from trail edge sensing |
US7258340B2 (en) * | 2005-03-25 | 2007-08-21 | Xerox Corporation | Sheet registration within a media inverter |
US8328188B2 (en) * | 2005-05-31 | 2012-12-11 | Xerox Corporation | Method and system for skew and lateral offset adjustment |
US7561843B2 (en) * | 2005-07-29 | 2009-07-14 | Xerox Corporation | Method and system of paper registration for two-sided imaging |
JP2007070085A (ja) * | 2005-09-08 | 2007-03-22 | Toshiba Corp | 紙葉類整位装置 |
JP4569434B2 (ja) * | 2005-09-28 | 2010-10-27 | ブラザー工業株式会社 | 画像読取装置 |
US7500668B2 (en) * | 2005-10-14 | 2009-03-10 | Xerox Corporation | Duplex registration systems and methods |
JP4678292B2 (ja) * | 2005-12-01 | 2011-04-27 | コニカミノルタビジネステクノロジーズ株式会社 | 画像形成装置 |
JP4908840B2 (ja) * | 2005-12-14 | 2012-04-04 | キヤノン株式会社 | 画像形成装置 |
US7637500B2 (en) | 2006-03-28 | 2009-12-29 | Hewlett-Packard Development Company, L.P. | Advancing a media sheet along a media path |
US20070258744A1 (en) * | 2006-05-02 | 2007-11-08 | Liccini Roman D | System and method for adjusting front-to-back printer registration |
US8056897B2 (en) * | 2007-03-29 | 2011-11-15 | Xerox Corporation | Moving sensor for sheet edge position measurement |
US7731188B2 (en) * | 2007-07-18 | 2010-06-08 | Xerox Corporation | Sheet registration system with auxiliary nips |
US7837191B2 (en) * | 2007-08-30 | 2010-11-23 | Kabushiki Kaisha Toshiba | Sheet carrying state determining device and sheet carrying state determining method |
US20090162119A1 (en) * | 2007-12-20 | 2009-06-25 | Xerox Corporation | Method for image to paper (iop) registration: image one to image two error compensation |
DE102008024216B4 (de) | 2008-05-19 | 2010-02-11 | Eastman Kodak Company | Verfahren zum Kalibrieren einer Druckmaschine |
US8109506B2 (en) * | 2009-05-29 | 2012-02-07 | Xerox Corporation | Sheet observer with a limited number of sheet sensors |
US8047537B2 (en) | 2009-07-21 | 2011-11-01 | Xerox Company | Extended registration control of a sheet in a media handling assembly |
US9108435B2 (en) | 2010-10-05 | 2015-08-18 | Hewlett-Packard Development Company, L.P. | Registering images during two-sided printing |
US8817317B2 (en) | 2010-10-05 | 2014-08-26 | Hewlett-Packard Development Company, L.P. | Method and system for two sided printing |
US20140293305A1 (en) * | 2011-10-31 | 2014-10-02 | Hewlett-Packard Indigo B.V. | Duplex section |
JP5536026B2 (ja) * | 2011-12-28 | 2014-07-02 | 京セラドキュメントソリューションズ株式会社 | 原稿搬送装置及び画像形成装置 |
US9348291B2 (en) * | 2014-10-10 | 2016-05-24 | Ricoh Company, Ltd. | Image forming apparatus and image forming system with correction mechanism |
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JPS602543A (ja) * | 1983-05-20 | 1985-01-08 | Fuji Xerox Co Ltd | 用紙斜行補正装置 |
US4971304A (en) * | 1986-12-10 | 1990-11-20 | Xerox Corporation | Apparatus and method for combined deskewing and side registering |
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US6813451B2 (en) * | 2002-10-30 | 2004-11-02 | Hewlett-Packard Development Company, L.P. | Duplex image registration |
US6920307B2 (en) * | 2003-04-25 | 2005-07-19 | Xerox Corporation | Systems and methods for simplex and duplex image on paper registration |
US6895210B1 (en) * | 2004-01-20 | 2005-05-17 | Xerox Corporation | Sheet to sheet, “on the fly” electronic skew correction |
-
2003
- 2003-10-27 EP EP03024515A patent/EP1418142A3/en not_active Withdrawn
- 2003-10-28 JP JP2003367437A patent/JP2004163931A/ja active Pending
- 2003-11-05 US US10/701,838 patent/US6988725B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US20040251611A1 (en) | 2004-12-16 |
EP1418142A2 (en) | 2004-05-12 |
US6988725B2 (en) | 2006-01-24 |
EP1418142A3 (en) | 2006-04-12 |
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