EP2196420A3 - Sheet feeding device and image forming apparatus provided with the sheet feeding device - Google Patents

Sheet feeding device and image forming apparatus provided with the sheet feeding device Download PDF

Info

Publication number
EP2196420A3
EP2196420A3 EP09015252A EP09015252A EP2196420A3 EP 2196420 A3 EP2196420 A3 EP 2196420A3 EP 09015252 A EP09015252 A EP 09015252A EP 09015252 A EP09015252 A EP 09015252A EP 2196420 A3 EP2196420 A3 EP 2196420A3
Authority
EP
European Patent Office
Prior art keywords
sheet
feeding device
sheet feeding
forming apparatus
image forming
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.)
Withdrawn
Application number
EP09015252A
Other languages
German (de)
French (fr)
Other versions
EP2196420A2 (en
Inventor
Yutaka Otsuka
Yuta Tachibana
Yoshiyuki Toso
Shoichi Tsuge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Business Technologies Inc
Original Assignee
Konica Minolta Business Technologies Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Konica Minolta Business Technologies Inc filed Critical Konica Minolta Business Technologies Inc
Publication of EP2196420A2 publication Critical patent/EP2196420A2/en
Publication of EP2196420A3 publication Critical patent/EP2196420A3/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • B65H7/14—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 by photoelectric feelers or detectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2220/00—Function indicators
    • B65H2220/03—Function indicators indicating an entity which is measured, estimated, evaluated, calculated or determined but which does not constitute an entity which is adjusted or changed by the control process per se
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/445—Moving, forwarding, guiding material stream of articles separated from each other
    • B65H2301/4452—Regulating space between separated articles
    • 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
    • B65H2511/50—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
    • B65H2513/10—Speed
    • 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
    • B65H2515/70—Electrical or magnetic properties, e.g. electric power or current
    • 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
    • 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

Abstract

A sheet feeding device (35) that is suited to be employed in an image forming apparatus having a printing section (2) for printing an image on a sheet. The sheet feeding device has feed rollers (19) for feeding a sheet at a speed "Va" and timing rollers (20) for feeding a sheet fed by the feed rollers (19) to the printing section at a speed "Vb". Sensors (Se1-Se5) are provided between the feed rollers (19) and the timing rollers (20), so that the gap between a foregoing sheet and a following sheet can be detected at a plurality of detection points while the foregoing sheet is being fed by the timing rollers (20) and the following sheet is being fed by the feed rollers (19). When one of the sensors (Se1-Se5) detects that there is a gap between the sheets, a control unit controls the feed rollers such that the speed "Va" will be higher than the speed "Vb".
EP09015252A 2008-12-12 2009-12-09 Sheet feeding device and image forming apparatus provided with the sheet feeding device Withdrawn EP2196420A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008317144A JP4650564B2 (en) 2008-12-12 2008-12-12 Sheet conveying apparatus and image forming apparatus provided with the same

Publications (2)

Publication Number Publication Date
EP2196420A2 EP2196420A2 (en) 2010-06-16
EP2196420A3 true EP2196420A3 (en) 2011-02-23

Family

ID=42026862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09015252A Withdrawn EP2196420A3 (en) 2008-12-12 2009-12-09 Sheet feeding device and image forming apparatus provided with the sheet feeding device

Country Status (4)

Country Link
US (1) US20100148431A1 (en)
EP (1) EP2196420A3 (en)
JP (1) JP4650564B2 (en)
CN (1) CN101746627B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5474081B2 (en) * 2009-10-20 2014-04-16 キヤノン株式会社 Sheet detecting apparatus and image forming apparatus
JP6366219B2 (en) * 2012-08-07 2018-08-01 キヤノン株式会社 Image forming apparatus
JP5825267B2 (en) * 2013-01-21 2015-12-02 コニカミノルタ株式会社 Image processing apparatus and motor rotation control method
CN104660855A (en) * 2013-11-20 2015-05-27 崴强科技股份有限公司 Correction device and correction method for scanning images
JP6472276B2 (en) * 2015-03-05 2019-02-20 キヤノン株式会社 Image forming apparatus
JP6164246B2 (en) * 2015-04-27 2017-07-19 コニカミノルタ株式会社 Image forming apparatus
JP2017203875A (en) * 2016-05-11 2017-11-16 キヤノン株式会社 Image forming device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040223797A1 (en) * 2003-05-09 2004-11-11 Kenji Ueda Method and apparatus for image forming capable of performing fast and stable sheet transfer operations
JP2006143411A (en) * 2004-11-19 2006-06-08 Ricoh Co Ltd Paper carrying device and image forming device using it
US20080030809A1 (en) * 2006-08-07 2008-02-07 Canon Kabushiki Kaisha Sheet conveyance device and image forming apparatus

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4451027A (en) * 1980-01-09 1984-05-29 Burroughs Corp. Constant spacing document feeder
US4541624A (en) * 1982-03-24 1985-09-17 Nippon Electric Co., Ltd. Flat article feeding apparatus
JP3208193B2 (en) * 1991-12-09 2001-09-10 株式会社リコー Sheet feeding method for image forming apparatus and sheet feeding apparatus for executing the sheet feeding method
US5749569A (en) * 1992-10-15 1998-05-12 Minolta Camera Kabushiki Kaisha Document feeding apparatus having improved forwarding means
IT1261545B (en) * 1993-04-09 1996-05-23 Finmeccanica Spa SINGULARIZER DEVICE
US5423527A (en) * 1993-11-05 1995-06-13 Unisys Corporation Document transport with gap adjust
US5461468A (en) * 1994-10-31 1995-10-24 Xerox Corporation Document handler interdocument gap control system
JP2659344B2 (en) * 1995-02-10 1997-09-30 日本電気ロボットエンジニアリング株式会社 Friction feeding mechanism for paper sheets
DE19607304C1 (en) * 1996-02-27 1997-07-31 Aeg Electrocom Gmbh Method for controlling a take-off device for flat consignments from a stack
JP2000335785A (en) * 1999-05-25 2000-12-05 Canon Inc Sheet carrying device and image forming device
JP2001301998A (en) * 2000-02-15 2001-10-31 Canon Inc Sheet carrying device, image forming device with the same, and image reading device
JP2002037474A (en) * 2000-07-18 2002-02-06 Canon Inc Sheet feeding device and image forming device provided with the same
US6651980B2 (en) * 2001-06-13 2003-11-25 Canon Kabushiki Kaisha Sheet conveying apparatus with correction device to compensate for sheet interval variation
US6644660B2 (en) * 2001-10-26 2003-11-11 Pitney Bowes Inc. Dynamic pitch correction for an output inserter subsystem
US6554275B1 (en) * 2001-12-04 2003-04-29 Unisys Corporation Method and system for document overlap/gap error detection and correction
US6685184B2 (en) * 2002-03-11 2004-02-03 Pitney Bowes Inc Transport method and system for controlling timing of mail pieces being processed by a mailing system
JP2003316230A (en) * 2002-04-26 2003-11-07 Canon Inc Image forming apparatus
JP4062694B2 (en) * 2003-04-23 2008-03-19 株式会社リコー Sheet conveying apparatus and image forming apparatus
JP2005001833A (en) * 2003-06-12 2005-01-06 Fuji Photo Film Co Ltd Sheet transport device
JP4157810B2 (en) * 2003-07-25 2008-10-01 東北リコー株式会社 Mass feeding device with intermediate transfer section
JP2006232475A (en) 2005-02-24 2006-09-07 Konica Minolta Business Technologies Inc Sheet feeder and image forming apparatus
DE102008009876A1 (en) * 2008-02-19 2009-08-20 Siemens Aktiengesellschaft Device for transporting flat objects

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040223797A1 (en) * 2003-05-09 2004-11-11 Kenji Ueda Method and apparatus for image forming capable of performing fast and stable sheet transfer operations
JP2006143411A (en) * 2004-11-19 2006-06-08 Ricoh Co Ltd Paper carrying device and image forming device using it
US20080030809A1 (en) * 2006-08-07 2008-02-07 Canon Kabushiki Kaisha Sheet conveyance device and image forming apparatus

Also Published As

Publication number Publication date
JP2010137974A (en) 2010-06-24
US20100148431A1 (en) 2010-06-17
JP4650564B2 (en) 2011-03-16
EP2196420A2 (en) 2010-06-16
CN101746627A (en) 2010-06-23
CN101746627B (en) 2013-04-17

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