US20080237968A1 - Sheet supplying device and image forming apparatus - Google Patents

Sheet supplying device and image forming apparatus Download PDF

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Publication number
US20080237968A1
US20080237968A1 US12/015,308 US1530808A US2008237968A1 US 20080237968 A1 US20080237968 A1 US 20080237968A1 US 1530808 A US1530808 A US 1530808A US 2008237968 A1 US2008237968 A1 US 2008237968A1
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United States
Prior art keywords
sheet
section
air
sheets
bundle
Prior art date
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Abandoned
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US12/015,308
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English (en)
Inventor
Tomoo Suzuki
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Individual
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Individual
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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
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/48—Air blast acting on edges of, or under, 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
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/12—Suction bands, belts, or tables moving relatively to the pile
    • B65H3/124—Suction bands or belts
    • B65H3/128—Suction bands or belts separating from the top of pile
    • 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
    • G03G15/6502—Supplying of sheet copy material; Cassettes therefor
    • G03G15/6511—Feeding devices for picking up or separation of copy sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/40—Fluid power drive; Fluid supply elements
    • B65H2406/41—Valves
    • 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"
    • G03G2215/004—Separation device

Definitions

  • the present invention relates to a sheet supplying device which is used for image forming apparatuses, such as copy machines, printers, facsimiles, printing machines, and multifunctional peripherals, and in particular, to a sheet supplying device which is able to separate to separate recording sheets, such as coated paper, and convey them one by one.
  • the sheet supplying device which is able to feed sheets one by one by a sheet supplying roller from a bundle of sheets including plural stacked sheets, is provided on the above image forming apparatuses. If plural sheets are fed from said sheet supplying device, sheet jamming tends to result. Further, if the feeding force is inadequate, miss-feeding results. Accordingly, a device must be designed which can unfailingly feed sequential sheets. To overcome this problem, the friction factor between the sheet and the sheet supplying roller is increased so that the uppermost sheet of the bundle of sheets can be fed one by one so that miss-feeding is prevented. In order not to feed two or more sheets at the same time, a separating roller, patting separation or a sheet separating claw is provided so that the lower stacked sheets are pushed back, and only the uppermost sheet is fed out.
  • an air blower is provided on a side of a sheet conveyance section, whereby air is blown onto plural sheets existing on the upper section of the bundle of sheets, whereby air passes between the mutually attracted sheets so that they are separated from each other.
  • coated sheets has characteristics in which overlapped sheets are strongly adhered to each other in high humidity environment. Such relatively strongly adhered sheets are not separated from each other by a weak force of air, so that the uppermost sheet is not separated from the lower sheet.
  • Unexamined Japanese Patent Application Publication No. 2004-131,291 discloses a sheet vacuum conveyance device which incorporates a sheet vacuum conveyance section which draws up sheets one by one from a bundle of sheets stacked in sheet stacking section, and a variable air flow section which can change air flow velocity, whereby when the air flow velocity is less than a predetermined value, sheet conveyance is conducted so that only the uppermost sheet is separated by the sheet vacuum conveyance section.
  • an appropriate amount of blown air should be selected based on sheet size, sheet basis weight, and sheet surface roughness.
  • said selected appropriate amount also changes.
  • the appropriate amount of air flow differs. Accordingly, since the appropriate required air flow amount tends to vary, it is almost impossible to automatically set an appropriate amount for each sheet, though the sheet supplying device memorizes the appropriate amount of air for each sheet.
  • the powder adheres on the sheet supplying roller so that the sheet conveyance force tends to decrease. Further, the sheets move upward in a stacked state, so that the sheets are not effectively separated. Yet further, the appropriate conditions do not go together for some types of sheets.
  • the air direction or air flow velocity tends to be resistant for the sheet conveyance.
  • these air blowing means are mounted on a sheet supplying tray which can be withdrawn from the sheet supplying device, the sheet supplying device becomes larger, therefore the image forming apparatus incorporating said sheet supplying device easily becomes larger. Yet further, said air blowing means can be easily mounted on large-sized machines, while they can rarely be mounted on small-sized machines.
  • the air blowing means blows air toward the side of the leading sections of the sheets stacked on the sheet supplying tray.
  • the air blow directed toward the side of the leading sections of the sheets is often not enough to separate the adhered sheets, so that sheet conveyance tends to be unacceptable.
  • An object of the present invention is to overcome the above problems, by providing a sheet supplying device which can separate the stacked sheets, in accordance with sheet size, basis weight and surface roughness, and can stably feed sheets one by one.
  • a sheet supplying device which supplies the recording sheets includes:
  • a recording sheet supplying tray which stacks a bundle of sheets including plural recording sheets
  • a first air blowing section which blows air against a side of the bundle of sheets stacked on the recording sheet supplying tray
  • a second air blowing section which blows air, from a position downstream of the bundle of sheets in a sheet conveyance direction, onto leading sections of the recording sheets
  • a vacuum conveyance section which vacuums the uppermost sheet of the bundle of sheets stacked on the sheet supplying tray and conveys the recording sheets one by one in the sheet conveyance direction
  • a vacuum detection sensor which detects that a recording sheet has been vacuumed by the vacuum conveyance section
  • control section which controls the shielding member to open or close so that air generated by the first air blowing section is blown onto the bundle of sheets.
  • An image forming apparatus includes:
  • a transfer section which transfers a toner image on the image carrier onto a recording sheet
  • a sheet supplying device which conveys the image carrying sheet to the transfer section
  • a fixing device which heats and fixes the toner image carried by the recording sheet
  • the sheet supplying device includes:
  • a recording sheet supplying tray which stacks a bundle of sheets including plural recording sheets
  • a first air blowing section which blows air against a side of the bundle of sheets stacked on the recording sheet supplying tray
  • a second air blowing section which blows air, from a position downstream of the bundle of sheets in the recording sheet conveyance direction, onto the leading sections of the bundle of sheets with respect to the recording sheet conveyance direction,
  • a vacuum conveyance section which vacuums the uppermost sheet of the bundle of sheets stacked on the recording sheet supplying tray and conveys the recording sheets one by one
  • a vacuum detection sensor which detects that a recording sheet has been vacuumed by the vacuum conveyance section
  • control section which controls the shielding member to open or close so that air generated by the first air blowing section is blown against the bundle of sheets.
  • FIG. 1 shows a total view of an image forming apparatus, structured of an image forming apparatus as a main body, an image reading device, an automatic document feeding device, and a large-capacity sheet supplying device.
  • FIG. 2 is a perspective view showing a main section of the sheet supplying device of the present invention.
  • FIG. 3 is a cross sectional front view of the sheet supplying device.
  • FIG. 4 is a plain view of the sheet supplying device.
  • FIG. 5 is a side view of the sheet supplying device.
  • FIGS. 6( a ) and 6 ( b ) are cross sectional drawings which show the vacuum conveyance of a sheet conducted by the first air blow section and the second air blow section.
  • FIG. 7 is a block diagram showing the control of the sheet supplying device.
  • FIG. 8 is a timing chart showing the control of the sheet supplying device.
  • FIG. 1 shows a total view of an image forming apparatus, structured of image forming apparatus A as a main body, image reading device SC, automatic document feeding device DF, and large capacity sheet supplying device LT.
  • Image forming apparatus A as a main body is structured of an image forming section, including photoconductor 1 serving as an image carrier, charging section 2 , exposure device 3 , developing device 4 , image transfer section 5 , and cleaning section 6 , fixing device 7 and a sheet conveyance section.
  • Said sheet conveyance section is structured of sheet supplying cassette 10 , first sheet supplying section 11 , second sheet supplying section 12 , sheet ejection section 14 , conveyance route switching section 15 , sheet circulating re-supplying section 16 , and sheet reverse-ejection section 17 .
  • Document d placed on the glass platen of automatic document feeding device DF, is conveyed to exposure device 3 by the sheet supplying section, where the image on a single surface or both surfaces is exposed by an optical system of image reading device SC, and is read by image sensor CCD.
  • Analog signals, photo-electrically converted by image sensor CCD, are processed by image processing section 20 , with respect to the analog process, A/D conversion, shading correction process, and image compressing process, then said signals are sent to the image forming section as image signals.
  • various processes are conducted, such as electrical charge, exposure, developing, image transferring, sheet separation, and cleaning.
  • the surface of photoconductor 1 is electrically charged by charging section 2 , on which an electrostatic latent image is formed by laser beams emitted from exposure device 3 , subsequently, said latent image is developed by developing device 4 as a toner image.
  • a recording sheet P stored in sheet supplying cassette 10 , is conveyed by first sheet supplying section 11 . Further, recording sheet P is conveyed while being synchronized with the toner images, by second sheet supplying section 12 , represented by paired registration rollers. After the toner image is transferred onto recording sheet P by image transfer section 5 , said toner image is fixed onto recording sheet P by fixing device 7 to be a permanent image.
  • recording sheet P carrying the fixed image is ejected outside the apparatus by sheet ejection section 14 .
  • Any residual toner remaining on photoconductor 1 is removed by cleaning section 6 .
  • recording sheet P, carrying a toner image on a first surface is conveyed to circulation re-supplying section 16 to be reversed, and another image is formed on a second surface by the image forming section, after which recording sheet P carrying a image on both surfaces is ejected outside the apparatus by sheet ejection section 14 .
  • recording sheet P carrying one fixed image, is directed to another route, and is switched-back by reversed sheet ejection section 17 so that sheet P is reversed, then sheet P is also ejected outside the apparatus by sheet ejection section 14 .
  • Large capacity sheet supplying device LT which is the sheet supplying device of the present invention, is connected to image forming apparatus A serving as a main body.
  • Large capacity sheet supplying device LT incorporating sheet supplying device 30 serving as a main body, first air blow section 40 , second air blow section 50 , and vacuum conveyance section 60 , stores a large capacity of recording sheets P, and supplies said recording sheets P one by one to image forming apparatus A.
  • Sheet supplying device 30 serving as a main body incorporates sheet supplying tray 31 , leading sheet edge regulation member 33 , trailing sheet edge regulation member 33 , and guide rails 34 .
  • Sheet supplying tray 31 is formed of three stages, wherein each sheet supplying tray 31 can be pulled out from sheet supplying device LT by guide rails 34 .
  • the maximum capacity of sheet supplying device LT is approximately 10,300 sheets.
  • FIG. 2 is a perspective view showing a main section of sheet supplying device LT of the present invention
  • FIG. 3 is a cross sectional front view of sheet supplying device LT
  • FIG. 4 is a plain view of sheet supplying device LT
  • FIG. 5 is a side view of sheet supplying device LT.
  • recording sheets P are stacked on sheet supplying trays 31 , and said trays 31 can be elevated by an un-illustrated elevating mechanism.
  • Side section regulation members 41 can be driven perpendicular to the sheet conveyance direction, that is, in the present invention, they can be driven in the width direction of sheet P. Accordingly, side section regulation members 41 regulate the recording sheets P by softly pushing both sides of sheet P.
  • Leading sheet edge regulation member 32 regulates the position of the leading edge of sheet P in the sheet conveyance direction.
  • Trailing sheet edge regulation member 33 can be driven in the sheet conveyance direction so that it regulates the position of the trailing edge of sheet P in the sheet conveyance direction.
  • height detecting sensor PS 3 is mounted on said trailing sheet edge regulation member 33 , which detects the height of uppermost sheet P.
  • a control section to be discussed later controls an un-illustrated motor to vertically drive sheet supplying tray 31 , based on the result detected by height detection sensor PS 3 , shown in FIG. 7 .
  • vacuum conveyance section 60 is mounted near an outlet of sheets P.
  • Vacuum conveyance section 60 incorporates large drive roller 61 driven by a motor, two small rollers 62 , and vacuuming belt 63 which is entrained about rollers 61 and 62 .
  • a large number of small holes penetrate vacuuming belt 63 .
  • Vacuuming device 64 is mounted inside vacuuming belt 63 , so that sheet P is drawn and conveyed by vacuuming belt 63 .
  • Vacuum detection sensor PS 1 mounted near the vacuuming surface of vacuuming belt 63 , detects that uppermost sheet P has been vacuumed.
  • Sheet feed sensor PS 2 mounted near vacuuming belt 63 downstream of the sheet conveyance direction of sheet supplying tray 31 , detects the passage of recording sheet P.
  • second air blow section 50 is mounted, near vacuuming belt 63 downstream of the sheet conveyance direction of sheet supplying tray 31 .
  • Second air blow section 50 is structured of a fan and motor unit and the like.
  • Fan and motor unit 51 of second air blow section 50 is mounted so that its air outlet 53 faces upward. Air blown upward is turned in direction by guide plate 52 , whereby air is blown obliquely upward from air outlet 53 , that is, air is blown into the area adjacent to vacuuming belt 63 of vacuum conveyance section 60 .
  • Second air blow section 50 is controlled based on the type of recording sheet P.
  • second air blow section 50 blows air between sheets P so that uppermost sheet P is separated from the adjacent lower sheet.
  • first air blow sections 40 are arranged on both sides of sheet supplying tray 31 , so that first air blow sections 40 blow air perpendicular to the sheet conveyance direction, at the top area of sheet P stacked on sheet supplying tray 31 .
  • First air blow section 40 incorporates fan and motor unit 42 which blows air against the top area of sheet P through air blow outlets 44 , both of which are located perpendicular to the conveyance direction of sheet P.
  • First air blow section 40 is mounted on side section regulation member 41 .
  • Fan and motor unit 42 is mounted so that air blow outlet 44 faces upward. Air blow directed upward is turned 900 by guide plate 43 , and is horizontally blown from air outlet 44 . Air outlets 44 are positioned near the top end of side section regulation members 41 .
  • the width of air blow outlet 44 is the same as the width of the outlet of first air blow section 40 . It is preferable for sheet separation that uppermost sheet P is nearly at the vertical center of air blow outlet 44 . Since first air blow section 40 is mounted on side section regulation member 41 , even when the size of sheet P is varied, first air blow section 40 can be shifted with side section regulation member 41 . In this embodiment, first air blow section 40 and air blow outlet 44 are mounted on both sides of sheets P, but may also be mounted on only a single side of sheets P.
  • first air blow section 40 When first air blow section 40 is activated, air is blown out from air outlet 44 so that several stacked sheets P of the uppermost section are blown by air. Air passes through several of the top stacked sheets P from one side to the other side. Due to this air passage, several sheets P on the uppermost section are separated. Vacuum conveyance section 60 lifts up the single uppermost sheet P which has been separated from the sheet below it by the above function, and unfailingly conveys said uppermost sheet P toward downstream sections.
  • an air inlet of first air blow section 40 is openable and closable. That is, shutter 45 , serving as said shielding member, pivots on shaft 46 , and is opened or closed by solenoid SOL.
  • the control sect ion controls shutter 45 to be open or closed so that first air blow section 40 can blow air or not.
  • FIGS. 6( a ) and 6 ( b ) are cross sectional drawings which show the vacuum conveyance of sheet P conducted by first air blow section 40 and second air blow section 50 .
  • FIG. 6( a ) shows a vacuuming operation of sheet P.
  • first blowing air V 1 blown by first air blow section 40
  • second air blow V 2 coming from second air blow section 50 is applied to the bottom section of vacuuming belt 63 (second air blow V 2 is illustrated by a longer outlined arrow).
  • FIG. 6( b ) shows the separating operation of sheets P.
  • shutter 45 closes the air inlet of first air blow section 40 to stop air flow, only air from second air blow section 50 passes between uppermost sheet P 1 and sheets P 2 below sheet P 1 , which have been lifted up.
  • Uppermost sheet P 1 is still vacuumed by vacuuming air V 3 , separated from other sheets P 2 .
  • Sheets P 2 including the below sheets, drop due to their own weight onto remaining sheets P which were not vacuumed.
  • first air blow section 40 and second air blow section 50 are repeated so that blown air allows several sheets P 2 of the uppermost section of the stacked sheets to float near the total sections of air outlets 44 and 53 , whereby the clearances between each sheet P become equal. Air passes through said clearances. Due to this, the top sheet P 1 can be separated from the stack of sheets, and is easily conveyed. Accordingly, scarring on the sheet due to extraordinary flowing is prevented, and the plural adhered sheets are prevented from being lifted up, so that they are safely separated from each other.
  • vacuum conveyance section 60 is activated by an un-illustrated driving section, so that single sheet P 1 vacuumed by vacuuming belt 63 is conveyed.
  • FIG. 7 is a block diagram showing the control of the sheet supplying device
  • FIG. 8 is a timing chart showing the control of the sheet supplying device.
  • control section controls shutter 45 to open or close, whereby air is switched to blow or not to blow from first air blow section 40 .
  • control section controls shutter 45 to close the air inlet of first air blow section 40 so that air blow is not conducted.
  • control section activates shutter 45 to open so that the air blow is conducted.
  • the time that shutter 45 is closed does not need to be the same as the above described timing, but if it is limited to a moment when the conveyance of sheet P 1 starts, the closed duration is so short that sheet P 1 is not effectively separated. Further, if shutter 45 is always closed when vacuum detection sensor PS 1 detects that sheet P 1 has been vacuumed, the air blow is not sufficient to lift sheet P 1 up so that vacuuming belt 63 cannot lift sheet P 1 , which results in irregular supply of sheets. That is, both long closed duration of shutter 45 and short closed duration of shutter 45 result in unreliable supplying of sheets. For the best closed duration, as shown in FIG.
  • a second sheet P 2 is ejected, that is, vacuum detection sensor PS 1 switches from ON to OFF, and a predetermined duration has passed after feed sensor PS 2 turns OFF, vacuum detection sensor PS 1 then detects a third sheet P 3 (which means sensor PS 1 is again ON), and the control section activates solenoid SOL to close shutter 45 .
  • sheet supplying device of the present invention namely large capacity sheet supplying device LT, combined with image forming apparatus A
  • this invention can also be used for sheet cassette 10 incorporated within image forming apparatus A.
  • the shielding member mounted on the air flow section is controlled to open or close, while the air flow speed is increased. Though a strong upholding air force is directed against the bundle of sheets, when the separating air flow is applied to separate a sheet, the upholding air flow is shielded. Accordingly, the upholding air flow does not interfere with the separating air flow, so that the sheets are effectively separated and fed.
  • the recording sheets are fed one by one, independently to the type of sheet, enabling the image forming section to assuredly form an image on the recording sheet.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US12/015,308 2007-03-28 2008-01-16 Sheet supplying device and image forming apparatus Abandoned US20080237968A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPJP2007-083975 2007-03-28
JP2007083975A JP4835489B2 (ja) 2007-03-28 2007-03-28 給紙装置及び画像形成装置

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070193798A1 (en) * 2005-10-21 2007-08-23 James Allard Systems and methods for obstacle avoidance
US20090121411A1 (en) * 2007-11-09 2009-05-14 Konica Minolta Business Technologies, Inc. Sheet feeding device and image forming apparatus
US20090236795A1 (en) * 2008-03-21 2009-09-24 Konica Minolta Business Technologies, Inc. Sheet feeding apparatus, housing incorporating the same and image forming apparatus
US20100123281A1 (en) * 2008-11-18 2010-05-20 Konica Minolta Business Technologies, Inc. Sheet supply device and image forming apparatus
US20100129127A1 (en) * 2008-11-27 2010-05-27 Konica Minolta Business Technologies, Inc. Sheet supply apparatus, sheet supply unit and image forming apparatus
US20100209163A1 (en) * 2009-02-13 2010-08-19 Konica Minolta Business Technologies, Inc. Sheet feeding device and image forming apparatus
US20100264577A1 (en) * 2009-04-20 2010-10-21 Konica Minolta Business Technologies, Inc. Sheet feeding apparatus and image forming apparatus
US20110056804A1 (en) * 2009-09-10 2011-03-10 Bdt Ag System for conveying an article using vortex suction units
US20120074639A1 (en) * 2009-04-20 2012-03-29 Konica Minolta Business Technologies, Inc. Sheet feeding apparatus and image forming apparatus
US8186668B2 (en) 2010-10-07 2012-05-29 Bdt Ag Stack feeding aeration device and method
US8523171B2 (en) 2011-05-24 2013-09-03 Sharp Kabushiki Kaisha Paper feeder and image forming apparatus including the same
US9079733B2 (en) 2010-05-07 2015-07-14 Bdt Media Automation Gmbh Vortex suction separator device
US20180239291A1 (en) * 2017-02-23 2018-08-23 Canon Finetech Nisca Inc. Feeding apparatus and method of controlling the same
DE102018102182A1 (de) * 2018-01-31 2019-08-01 Bdt Media Automation Gmbh Medienschublade für eine Medienverarbeitungsvorrichtung und Medienverarbeitungsvorrichtung

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* Cited by examiner, † Cited by third party
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JP2010095317A (ja) * 2008-10-14 2010-04-30 Konica Minolta Business Technologies Inc 給紙装置及び画像形成装置
JP2010195528A (ja) * 2009-02-25 2010-09-09 Konica Minolta Business Technologies Inc 給紙装置、給紙ユニット、画像形成装置及び画像形成ユニット
JP2010202372A (ja) * 2009-03-04 2010-09-16 Ricoh Co Ltd 給紙装置、画像形成装置
JP2010215350A (ja) * 2009-03-16 2010-09-30 Konica Minolta Business Technologies Inc 給紙装置、給紙ユニット及び画像形成システム
JP5206560B2 (ja) 2009-04-10 2013-06-12 コニカミノルタビジネステクノロジーズ株式会社 エア吸引給紙装置及び画像形成装置
JP2010269922A (ja) * 2009-05-25 2010-12-02 Konica Minolta Business Technologies Inc 給紙装置、画像形成装置及び画像形成システム
JP5434601B2 (ja) 2010-01-05 2014-03-05 コニカミノルタ株式会社 給紙装置及び画像形成システム
WO2012107217A2 (en) 2011-02-11 2012-08-16 Bdt Media Automation Gmbh The present invention relates to a suctioning and conveying system for suctioning and conveying an object
JP6880786B2 (ja) * 2017-02-01 2021-06-02 コニカミノルタ株式会社 給紙装置、画像形成装置、及び画像形成システム
KR101972342B1 (ko) * 2017-12-21 2019-04-25 주식회사 에스에프에이 기능성 필름 부착시스템

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090676A (en) * 1988-09-19 1992-02-25 Hitachi, Ltd. Method of and apparatus for separating and feeding sheets
US5836582A (en) * 1994-04-04 1998-11-17 Canon Kabushiki Kaisha Sheet feeding device with air injectors for separating sheets
US6015144A (en) * 1997-04-18 2000-01-18 Fuji Xerox Co., Ltd. Sheet feeder and image forming apparatus
US6082728A (en) * 1993-10-01 2000-07-04 Canon Kabushiki Kaisha Sheet feeding apparatus
US20010017441A1 (en) * 2000-02-23 2001-08-30 Kyocera Mita Corporation Paper feeder for use in image forming apparatus
US20020145246A1 (en) * 1999-06-28 2002-10-10 Mitsuhiro Goda Paper feeder
US20040089994A1 (en) * 2002-09-20 2004-05-13 Canon Kabushiki Kaisha Sheet feeder which separates sheets with variable speed and/or direction blown air and image forming apparatus using same
US20060012107A1 (en) * 2004-07-15 2006-01-19 Satoshi Ueda Sheet-supplying device
US20060170145A1 (en) * 2005-02-03 2006-08-03 Canon Kabushiki Kaisha Sheet feeding apparatus and image forming apparatus
US20070170638A1 (en) * 2006-01-20 2007-07-26 Canon Kabushiki Kaisha Sheet feeding apparatus and image forming apparatus
US20070194514A1 (en) * 2006-02-21 2007-08-23 Canon Kabushiki Kaisha Sheet feeding apparatus and image forming apparatus
US20080088078A1 (en) * 2006-10-13 2008-04-17 Canon Kabushiki Kaisha Sheet feeding device and image forming apparatus
US7637491B2 (en) * 2005-06-30 2009-12-29 Canon Kabushiki Kaisha Sheet stacking device, sheet feeding device, and image forming apparatus

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6056739A (ja) * 1983-09-06 1985-04-02 Fuji Xerox Co Ltd 給紙装置
JP2766583B2 (ja) * 1992-04-30 1998-06-18 シャープ株式会社 シート体の給送方法
JPH0851140A (ja) * 1994-08-05 1996-02-20 Dowa Mining Co Ltd 積層薄板体の２枚取り防止装置及び防止方法
JPH10120214A (ja) * 1996-10-16 1998-05-12 Canon Inc シート給送装置及びこれを備えた画像形成装置
JPH11106071A (ja) * 1997-10-06 1999-04-20 Canon Inc シート給送装置及び画像読取装置
JPH11263463A (ja) * 1998-03-18 1999-09-28 Canon Inc シート搬送装置及びこれを備える画像形成装置
JP3919325B2 (ja) * 1998-03-23 2007-05-23 キヤノン株式会社 画像読み取り装置、及び画像形成装置
JP2001031266A (ja) * 1999-07-27 2001-02-06 Kyocera Mita Corp 給紙装置
JP4217571B2 (ja) * 2002-09-20 2009-02-04 キヤノン株式会社 シート給送装置及び画像形成装置
JP4131325B2 (ja) * 2003-03-24 2008-08-13 富士ゼロックス株式会社 シート供給装置及び画像形成装置
JP4516504B2 (ja) * 2004-09-13 2010-08-04 株式会社リコー 給紙装置
JP4278644B2 (ja) 2005-09-26 2009-06-17 三菱電機株式会社 電動式パワーステアリング制御装置

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090676A (en) * 1988-09-19 1992-02-25 Hitachi, Ltd. Method of and apparatus for separating and feeding sheets
US6082728A (en) * 1993-10-01 2000-07-04 Canon Kabushiki Kaisha Sheet feeding apparatus
US5836582A (en) * 1994-04-04 1998-11-17 Canon Kabushiki Kaisha Sheet feeding device with air injectors for separating sheets
US6015144A (en) * 1997-04-18 2000-01-18 Fuji Xerox Co., Ltd. Sheet feeder and image forming apparatus
US20020145246A1 (en) * 1999-06-28 2002-10-10 Mitsuhiro Goda Paper feeder
US20010017441A1 (en) * 2000-02-23 2001-08-30 Kyocera Mita Corporation Paper feeder for use in image forming apparatus
US20040089994A1 (en) * 2002-09-20 2004-05-13 Canon Kabushiki Kaisha Sheet feeder which separates sheets with variable speed and/or direction blown air and image forming apparatus using same
US20060012107A1 (en) * 2004-07-15 2006-01-19 Satoshi Ueda Sheet-supplying device
US20060170145A1 (en) * 2005-02-03 2006-08-03 Canon Kabushiki Kaisha Sheet feeding apparatus and image forming apparatus
US7637491B2 (en) * 2005-06-30 2009-12-29 Canon Kabushiki Kaisha Sheet stacking device, sheet feeding device, and image forming apparatus
US20070170638A1 (en) * 2006-01-20 2007-07-26 Canon Kabushiki Kaisha Sheet feeding apparatus and image forming apparatus
US20070194514A1 (en) * 2006-02-21 2007-08-23 Canon Kabushiki Kaisha Sheet feeding apparatus and image forming apparatus
US20080088078A1 (en) * 2006-10-13 2008-04-17 Canon Kabushiki Kaisha Sheet feeding device and image forming apparatus

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070193798A1 (en) * 2005-10-21 2007-08-23 James Allard Systems and methods for obstacle avoidance
US20090121411A1 (en) * 2007-11-09 2009-05-14 Konica Minolta Business Technologies, Inc. Sheet feeding device and image forming apparatus
US7708264B2 (en) * 2007-11-09 2010-05-04 Konica Minolta Business Technologies, Inc. Sheet feeding device and image forming apparatus
US20090236795A1 (en) * 2008-03-21 2009-09-24 Konica Minolta Business Technologies, Inc. Sheet feeding apparatus, housing incorporating the same and image forming apparatus
US7823871B2 (en) * 2008-03-21 2010-11-02 Konica Minolta Business Technologies, Inc. Sheet feeding apparatus, housing incorporating the same and image forming apparatus
US20100123281A1 (en) * 2008-11-18 2010-05-20 Konica Minolta Business Technologies, Inc. Sheet supply device and image forming apparatus
US8205872B2 (en) * 2008-11-18 2012-06-26 Konica Minolta Business Technologies, Inc. Sheet supply device and image forming apparatus
US8042798B2 (en) * 2008-11-27 2011-10-25 Konica Minolta Business Technologies, Inc. Sheet supply apparatus, sheet supply unit and image forming apparatus with blasting separation air outlet
US20100129127A1 (en) * 2008-11-27 2010-05-27 Konica Minolta Business Technologies, Inc. Sheet supply apparatus, sheet supply unit and image forming apparatus
US20100209163A1 (en) * 2009-02-13 2010-08-19 Konica Minolta Business Technologies, Inc. Sheet feeding device and image forming apparatus
US8437683B2 (en) * 2009-02-13 2013-05-07 Konica Minolta Business Technologies, Inc. Sheet feeding device and image forming apparatus
US20120074639A1 (en) * 2009-04-20 2012-03-29 Konica Minolta Business Technologies, Inc. Sheet feeding apparatus and image forming apparatus
US8439348B2 (en) * 2009-04-20 2013-05-14 Konica Minolta Business Technologies, Inc. Sheet feeding apparatus and image forming apparatus
US8800988B2 (en) * 2009-04-20 2014-08-12 Konica Minolta Business Technologies, Inc. Sheet feeding apparatus and image forming apparatus
US20110198797A1 (en) * 2009-04-20 2011-08-18 Konica Minolta Business Technologies, Inc. Sheet feeding apparatus and image forming apparatus
US20100264577A1 (en) * 2009-04-20 2010-10-21 Konica Minolta Business Technologies, Inc. Sheet feeding apparatus and image forming apparatus
US8800753B2 (en) 2009-09-10 2014-08-12 Bdt Media Automation Gmbh System for conveying an article using vortex suction units
US20110056804A1 (en) * 2009-09-10 2011-03-10 Bdt Ag System for conveying an article using vortex suction units
US9409717B2 (en) 2009-09-10 2016-08-09 Bdt Media Automation Gmbh System for conveying an article using vortex suction units
US9079733B2 (en) 2010-05-07 2015-07-14 Bdt Media Automation Gmbh Vortex suction separator device
US8186668B2 (en) 2010-10-07 2012-05-29 Bdt Ag Stack feeding aeration device and method
US8523171B2 (en) 2011-05-24 2013-09-03 Sharp Kabushiki Kaisha Paper feeder and image forming apparatus including the same
US20180239291A1 (en) * 2017-02-23 2018-08-23 Canon Finetech Nisca Inc. Feeding apparatus and method of controlling the same
US10571848B2 (en) * 2017-02-23 2020-02-25 Canon Finetech Nisca Inc. Feeding apparatus and method of controlling the same
DE102018102182A1 (de) * 2018-01-31 2019-08-01 Bdt Media Automation Gmbh Medienschublade für eine Medienverarbeitungsvorrichtung und Medienverarbeitungsvorrichtung
US10829323B2 (en) 2018-01-31 2020-11-10 Bdt Media Automation Gmbh Media drawer for a media processing device and media processing device

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