JP4336634B2 - シート供給装置及び画像形成装置 - Google Patents
シート供給装置及び画像形成装置 Download PDFInfo
- Publication number
- JP4336634B2 JP4336634B2 JP2004258389A JP2004258389A JP4336634B2 JP 4336634 B2 JP4336634 B2 JP 4336634B2 JP 2004258389 A JP2004258389 A JP 2004258389A JP 2004258389 A JP2004258389 A JP 2004258389A JP 4336634 B2 JP4336634 B2 JP 4336634B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- roller
- unit
- image forming
- skew
- 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
-
- 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
- B65H7/20—Controlling associated apparatus
-
- 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
- B65H5/34—Varying the phase of feed relative to the receiving machine
-
- 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
- G03G15/6567—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
- 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
- B65H2511/22—Distance
-
- 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
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/50—Occurence
- B65H2511/51—Presence
- B65H2511/514—Particular portion of element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2513/00—Dynamic entities; Timing aspects
- B65H2513/20—Acceleration or deceleration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2513/00—Dynamic entities; Timing aspects
- B65H2513/40—Movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
- B65H2557/20—Calculating means; Controlling methods
- B65H2557/24—Calculating methods; Mathematic models
- B65H2557/242—Calculating methods; Mathematic models involving a particular data profile or curve
-
- 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
- B65H2701/1311—Edges leading edge
-
- 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
-
- 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
- G03G2215/00362—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"
- G03G2215/00409—Transfer device
-
- 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
- G03G2215/00535—Stable handling of copy medium
- G03G2215/00556—Control of copy medium feeding
- G03G2215/00561—Aligning or deskewing
-
- 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
- G03G2215/00535—Stable handling of copy medium
- G03G2215/00556—Control of copy medium feeding
- G03G2215/00599—Timing, synchronisation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Registering Or Overturning Sheets (AREA)
- Paper Feeding For Electrophotography (AREA)
Description
105 …第一搬送ローラ
107 …レジスト前ローラ
130 …制御部
200a,200b …スキュー補正ローラ(搬送回転体)
201a,201b …補正センサ(第一検知手段)
202 …先端検知センサ
203 …CISセンサ
204 …第二レジ前ローラ
307a,307b …駆動モータ
309 …転写前駆動ローラ
314 …転写前従動ローラ
315a,315b …スキュー補正従動ローラ
317a,317b …紙間制御センサ(第二検知手段)
Claims (2)
- シートに画像を記録する記録位置に対して、シートの斜行を補正しつつ該シートを送り込む斜行補正ユニットと、
前記斜行補正ユニットよりもシート搬送方向上流側に設けられ、前記記録位置におけるシートの搬送速度αよりも速い搬送速度βから前記搬送速度αまで減速させるタイミングを変化させることで、先のシート後端と次のシート先端の間隔を制御する紙間制御ユニットと、
を有し、
前記斜行補正ユニットは、独立に速度制御可能な複数の搬送回転体をシート搬送方向と直交する幅方向の同軸線上に有し、該複数の搬送回転体の速度差を用いてシートの斜行を補正するように構成され、
前記紙間制御ユニットは、シート先端を検知する紙間制御センサを、シート搬送方向と直交する幅方向の同軸線上で、且つ、前記斜行補正ユニットが有する各搬送回転体に対してシート搬送方向の同一直線上の2ヶ所に有し、
前記紙間制御ユニットは、シート先端を遅く検知した紙間制御センサの検知情報に基づいて、該シート先端を遅く検知した紙間制御センサを通る前記同一直線上での先のシート後端と次のシート先端の間隔を所定紙間長さにするように制御し、
前記斜行補正ユニットは、先行しているシート先端側の搬送回転体を一時的に減速させてシートの斜行を補正することを特徴とするシート供給装置。 - シートに画像を形成する画像形成部と、前記画像形成部にシートを送り込むシート供給部と、を有する画像形成装置において、前記シート供給部として請求項1に記載のシート供給装置を有することを特徴とする画像形成装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004258389A JP4336634B2 (ja) | 2004-09-06 | 2004-09-06 | シート供給装置及び画像形成装置 |
US11/216,009 US7751771B2 (en) | 2004-09-06 | 2005-09-01 | Sheet transport apparatus and image forming apparatus |
CNB2005100985930A CN100445188C (zh) | 2004-09-06 | 2005-09-06 | 图像形成装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004258389A JP4336634B2 (ja) | 2004-09-06 | 2004-09-06 | シート供給装置及び画像形成装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006069784A JP2006069784A (ja) | 2006-03-16 |
JP4336634B2 true JP4336634B2 (ja) | 2009-09-30 |
Family
ID=35996389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004258389A Expired - Fee Related JP4336634B2 (ja) | 2004-09-06 | 2004-09-06 | シート供給装置及び画像形成装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7751771B2 (ja) |
JP (1) | JP4336634B2 (ja) |
CN (1) | CN100445188C (ja) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JP4367429B2 (ja) * | 2006-04-14 | 2009-11-18 | 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 |
JP2007322472A (ja) * | 2006-05-30 | 2007-12-13 | Konica Minolta Business Technologies Inc | 画像形成装置 |
US8490968B2 (en) * | 2006-07-27 | 2013-07-23 | Canon Kabushiki Kaisha | Image forming apparatus with conveyance interval adjustment for recording paper |
US7694962B2 (en) * | 2006-12-04 | 2010-04-13 | Canon Kabushiki Kaisha | Sheet conveying apparatus and image forming apparatus |
JP5025435B2 (ja) * | 2007-11-28 | 2012-09-12 | キヤノン株式会社 | シート搬送装置及び画像形成装置並びに画像読取装置 |
JP5534691B2 (ja) * | 2008-04-25 | 2014-07-02 | キヤノン株式会社 | 画像形成装置及び記録材搬送方法 |
JP5100517B2 (ja) * | 2008-06-06 | 2012-12-19 | キヤノン株式会社 | 画像形成装置 |
US8170456B2 (en) * | 2008-09-18 | 2012-05-01 | Xerox Corporation | Method and system for improving image on paper registration in an image printing system |
US9002256B2 (en) * | 2009-10-14 | 2015-04-07 | Xerox Corporation | Adaptive scheduler that corrects for paper process directional arrival errors to print engine registration subsystem |
US20110235074A1 (en) * | 2010-03-29 | 2011-09-29 | Kabushiki Kaisha Toshiba | Image forming apparatus (sheet processing apparatus having speed control function) |
JP6141088B2 (ja) * | 2013-04-25 | 2017-06-07 | キヤノン株式会社 | 画像形成装置 |
JP2016037370A (ja) * | 2014-08-08 | 2016-03-22 | ブラザー工業株式会社 | 画像形成装置 |
US9791814B2 (en) * | 2015-04-09 | 2017-10-17 | Canon Kabushiki Kaisha | Image forming apparatus |
JP2018095392A (ja) * | 2016-12-12 | 2018-06-21 | コニカミノルタ株式会社 | 画像形成装置 |
JP6863322B2 (ja) * | 2018-03-22 | 2021-04-21 | 京セラドキュメントソリューションズ株式会社 | 中継搬送装置および画像形成システム |
JP7170969B2 (ja) * | 2019-03-15 | 2022-11-15 | 株式会社リコー | 搬送装置及び画像形成装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04277151A (ja) | 1991-03-04 | 1992-10-02 | Canon Inc | シート材搬送装置 |
US5278624A (en) * | 1992-07-07 | 1994-01-11 | Xerox Corporation | Differential drive for sheet registration drive rolls with skew detection |
US5478066A (en) * | 1992-11-02 | 1995-12-26 | Canon Kabushiki Kaisha | Sheet supply apparatus |
US5645274A (en) * | 1993-09-22 | 1997-07-08 | Canon Kabushiki Kaisha | Sheet supply apparatus |
JP3097889B2 (ja) * | 1993-10-01 | 2000-10-10 | キヤノン株式会社 | シート給送装置及び画像形成装置 |
US5722652A (en) * | 1993-10-28 | 1998-03-03 | Canon Kabushiki Kaisha | Sheet feeding apparatus with sheet absorb means and a conveyor controlled for forward and reverse conveying directions |
US6148172A (en) * | 1998-10-09 | 2000-11-14 | Konica Corporation | Image forming apparatus having means for enhancing accuracy of conveyance of recording sheets |
JP2001130812A (ja) | 1999-07-29 | 2001-05-15 | Ricoh Co Ltd | 画像形成装置、プリンタ、複写機、ファクシミリ装置および複合機 |
JP3652222B2 (ja) | 2000-07-14 | 2005-05-25 | キヤノン株式会社 | シート搬送装置及び画像形成装置 |
US6370354B1 (en) * | 2000-08-08 | 2002-04-09 | Lexmark International, Inc. | Method and apparatus for controlling media-to-image registration of a single-pass intermediate transfer member-based printing apparatus |
US6529703B2 (en) * | 2000-09-29 | 2003-03-04 | Canon Kabushiki Kaisha | Image forming apparatus having registration rollers of a variable rotating speed |
US6651980B2 (en) * | 2001-06-13 | 2003-11-25 | Canon Kabushiki Kaisha | Sheet conveying apparatus with correction device to compensate for sheet interval variation |
JP2003155130A (ja) * | 2001-11-20 | 2003-05-27 | Brother Ind Ltd | 画像形成装置 |
JP4261826B2 (ja) * | 2002-06-12 | 2009-04-30 | キヤノン株式会社 | 画像形成装置 |
EP1403201B1 (en) * | 2002-09-27 | 2007-01-24 | Eastman Kodak Company | Pre-registration speed and timing adjust system |
-
2004
- 2004-09-06 JP JP2004258389A patent/JP4336634B2/ja not_active Expired - Fee Related
-
2005
- 2005-09-01 US US11/216,009 patent/US7751771B2/en not_active Expired - Fee Related
- 2005-09-06 CN CNB2005100985930A patent/CN100445188C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7751771B2 (en) | 2010-07-06 |
US20060051145A1 (en) | 2006-03-09 |
JP2006069784A (ja) | 2006-03-16 |
CN100445188C (zh) | 2008-12-24 |
CN1746087A (zh) | 2006-03-15 |
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