US20050062218A1 - Sheet side guiding device, sheet feeding device and image forming apparatus - Google Patents

Sheet side guiding device, sheet feeding device and image forming apparatus Download PDF

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Publication number
US20050062218A1
US20050062218A1 US10/925,994 US92599404A US2005062218A1 US 20050062218 A1 US20050062218 A1 US 20050062218A1 US 92599404 A US92599404 A US 92599404A US 2005062218 A1 US2005062218 A1 US 2005062218A1
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US
United States
Prior art keywords
sheet
lever
guide member
tray
sheets
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.)
Abandoned
Application number
US10/925,994
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English (en)
Inventor
Reiji Murakami
Masahiro Ohno
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.)
Toshiba Corp
Toshiba Tec Corp
Original Assignee
Toshiba Corp
Toshiba Tec Corp
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 Toshiba Corp, Toshiba Tec Corp filed Critical Toshiba Corp
Assigned to KABUSHIKI KAISHA TOSHIBIA, TOSHIBA TEC KABUSHIKI KAISHA reassignment KABUSHIKI KAISHA TOSHIBIA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MURAKAMI, REIJI, OHNO, MASAHIRO
Publication of US20050062218A1 publication Critical patent/US20050062218A1/en
Abandoned legal-status Critical Current

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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
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/26—Supports or magazines for piles from which articles are to be separated with auxiliary supports to facilitate introduction or renewal of the pile
    • B65H1/266—Support fully or partially removable from the handling machine, e.g. cassette, drawer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/50—Machine elements
    • B65H2402/51—Joints, e.g. riveted or magnetic joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/70—Other elements in edge contact with handled material, e.g. registering, orientating, guiding devices
    • B65H2404/74—Guiding means
    • B65H2404/742—Guiding means for guiding transversely
    • 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
    • B65H2511/10—Size; Dimensions
    • B65H2511/12—Width
    • 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

Definitions

  • the present invention relates to a sheet side guiding device placed on a tray, which guides sheets of an original or copy sheets fed from the tray, to suit the lateral sides of the sheets in their width direction, as well as a sheet feeding device and an image forming apparatus.
  • Image forming apparatus such as a copy machine, scanner and facsimile include a tray on which originals, copy sheets, or the like etc. are placed. The sheets placed on the tray are fed one by one to an image formation processing unit of an image forming apparatus in accordance with a sheet feeding signal, where an image is formed on a sheet.
  • the tray is equipped with a guiding device for suiting the side edges of the sheets placed thereon in order to feed them to the image formation processing unit in a proper position.
  • the sheets have various sizes such as B5, A4 and A3.
  • the guiding device is designed to guide sheets by their side edges in accordance with the width dimension of the sheets.
  • Jpn. Pat. Appln. KOKAI Publication No. 11-79418 discloses a sheet side guiding device and a technique of an image processing apparatus that uses this guiding device.
  • a rack-shaped engagement sections are provided on the surface side of a tray along the longitudinal direction of grooves formed in the tray, and engagement control units are provided for side guides that are slidable along the longitudinal direction of the grooves.
  • the engagement control units are provided with engagement nails that detachably engage with the engagement units.
  • the above-described techniques employs a rachet structure in which the displacement of the side guides is controlled as the engagement nails engage with the engagement units. If an external force is applied to the side guides in a direction that opens the side guides (that is, a direction in which the side guides move away from the side edges of sheets placed on the tray), the displacement of the side guides can be controlled.
  • the rachet structure includes rachet teeth provided at a predetermined pitch and bottoms each formed between adjacent rachet teeth, and the engagement nails engage with the bottoms each formed between the adjacent teeth.
  • Some types of the sheet side guiding device are designed to guide one side of sheets with a fixed side guide and the other side edge with a slide-adjustable side guide to fit the size of the sheets.
  • Other types are designed to guide both sides of sheets with slide-adjustable side guides to fit the width of the sheets with reference to the center position of the sheets in their width direction.
  • the engagement position displaces in units of the pitch of the rachet teeth.
  • the side guides on both sides are usually coupled to each other by a rack and pinion to move symmetrically, and therefore the engagement position displaces in units of a double of the pitch of the rachet.
  • the present invention has been proposed in consideration of the above-described circumstances, and the object thereof is to provide a sheet side guiding device that can position and fix the side guides in a stepless manner, as well as a sheet feeding device and an image forming apparatus.
  • a sheet side guiding device comprising: a tray on which sheets are placed; a guide member, provided on the tray to be slidable in a direction normal to a sheet feeding direction, configured to guide side portions of the sheets to be fed; an elastic member provided on the tray in a sliding direction of the guide member; a lever provided pivotably on the guide member via a pivot mechanism; and an engagement stopper nail portion, provided for an pivot end portion of the lever, configured to detachably engage with the elastic member to lock the guide member to the tray.
  • FIG. 1 is a diagram schematically showing the structure of a digital copying machine according to an embodiment of the present invention
  • FIG. 2 is a perspective view of a tray equipped with a sheet side guiding device
  • FIG. 3 is an exploded perspective view of the sheet side guiding device
  • FIG. 4 is a cross sectional view of portions of the first side guide and lever
  • FIG. 5 is a cross sectional view of the first side guide and lever
  • FIG. 6 is a diagram showing the relationship between a force applied to the lever and the operation of an engagement stopper nail portion
  • FIG. 7 is a diagram showing the state in which the engagement stopper nail portion is brought into contact with a rubber sheet
  • FIG. 8 is a diagram showing the relationship between a force applied to the lever and the operation of an engagement stopper nail portion in a comparative example
  • FIG. 9 is a diagram showing the state in which the engagement stopper nail portion is brought into contact with a rubber sheet in the comparative example shown in FIG. 8 ;
  • FIG. 10 is a diagram showing a cross section of the first side guide according to the embodiment of the present invention when viewed from a front direction.
  • FIG. 1 shows the entire structure of a digital copying machine F, which is an image forming apparatus equipped with a manual sheet feeding device S, according to an embodiment of the present invention.
  • the digital copying machine F comprises a main body 100 , and an original tray 101 on which originals are placed one by one is provided on an upper surface portion of the main body 100 .
  • An automatic original feeding unit 102 that automatically feeds originals onto the original tray 101 is provided on the original tray 101 .
  • An image reading unit (scanner) 103 that reads an image of an original placed on the original tray 101 is provided underneath the original tray 101 .
  • An image forming unit 104 that forms an image of an original read by the image reading unit 103 is provided underneath the image reading unit (scanner) 103 .
  • a sheet feeding unit 112 is provided underneath the image forming unit 104 .
  • the sheet feeding unit 112 includes sheet feeding cassettes 113 and 114 .
  • a manual sheet feeding unit S is provided at a lower section of a lateral surface of the main body 100 .
  • the manual sheet feeding unit S is provided with a sheet side guiding device that guides sides of sheets in the width direction for various sizes of sheets as will be described in detail later.
  • a sheet fed from the sheet feeding cassette 113 or 114 , or the manual sheet feeding unit S is conveyed to the image forming unit 104 , where an image is formed on the sheet.
  • FIG. 2 is a perspective view showing the manual sheet feeding unit S.
  • the manual sheet feeding unit S includes a tray 130 .
  • a sheet P is placed on the tray 130 and the sheet is fed in a direction indicated by the arrow.
  • the tray 130 is provided with a guide device that guides both side of the sheet P that has been fed thereto.
  • the tray 130 includes a table plate 1 and first and second support plates 3 A and 3 B are formed to be integrated with the table plate 1 .
  • a first side guide 10 and a second side guide 20 that form the guiding device are movably supported on the support plates 3 A and 3 B, respectively.
  • the first and second side guides 10 and 20 move in directions that are normal to the sheet feeding direction.
  • the support plates 3 A and 3 B each have a guide groove portion 2 a used to guide the movement of the side guides 10 and 20 .
  • the guide groove portions 2 a are through holes made in the plates over respective regions where the side guides 10 and 20 are movable respectively.
  • the first side guide 10 is movably fit into the guide groove portion 2 a of the first support plate 3 A and the second side guide 20 is movably fit into the guide groove portion 2 a of the second support plate 3 B.
  • Each of the first and second side guides 10 and 20 is formed to have substantially an L shape, which is formed of a bottom plate portion 5 and a guide wall 6 standing straight up from one side end of the bottom plate portion 5 .
  • a lever 15 is provided for the guide wall 6 of the first side guide 10 .
  • a rubber sheet 7 which is an elastic member used for registration, is mounted on the first support plate 3 A along the moving direction of the first side guide 10 .
  • a lower end surface of the lever 15 is brought into contact with the rubber sheet 7 to be opposite thereto.
  • An example of the material of the rubber sheet 7 is a CR rubber member having a hardness of 45 to 60 degrees.
  • the surface of the rubber sheet 7 is closely grained and is made substantially plane.
  • the level 15 is formed of a synthetic resin material such as plastic, and its hardness is set to be higher than that of the rubber sheet 7 .
  • FIG. 3 is a perspective view showing the interlocking mechanism between the first and second side guides 10 and 20 .
  • the interlocking mechanism includes first and second racks 11 and 12 placed in parallel with and face each other.
  • the first rack 11 is fixed to the bottom plate portion 5 of the first side guide 10 with a screw 300 .
  • the second rack 12 is fixed to the bottom plate portion 5 of the second side guide 20 with a screw 300 .
  • Each screw 300 is pierced through to the respective guide groove portion 2 a .
  • a pinion gear 13 is interposed between the first and second racks 11 and 12 to engage with these racks.
  • the first side guide 10 when the first side guide 10 is moved to, for example, the right in the illustration shown in FIG. 3 , the first rack 11 is moved in the same direction to rotate the pinion gear 13 in a clockwise direction. Then, as the pinion gear 13 rotates, the second rack 12 is moved. Due to the movement of the second rack 12 , the second side guide 20 is moved to the left in the illustration shown in FIG. 3 . In other words, the first and second side guides 10 and 20 are moved in the respective directions that they become closer to each other each by the same moving amount.
  • the first side guide 10 when the first side guide 10 is moved to, for example, the left in the illustration shown in FIG. 3 , the first rack 11 is moved in the same direction to rotate the pinion gear 13 in a counter-clockwise direction. Then, as the pinion gear 13 rotates, the second rack 12 is moved. Due to the movement of the second rack 12 , the second side guide 20 is moved to the right in the illustration shown in FIG. 3 . In other words, the first and second side guides 10 and 20 are moved in the respective directions that they become apart from each other each by the same amount. In the above-described manner, the first and second side guides 10 and 20 are moved in the respective directions that they part from each other with respect to the pinion gear 13 at the center.
  • FIGS. 4 and 5 are cross sectional views of an installation structure of the lever 15 to the first side guide 10 .
  • the lever 15 is mounted pivotably via a pivot mechanism 30 to a lower portion of the guide wall 6 of the first side guide 10 .
  • the upper end portion of the lever 15 is a free end and the lever is pivoted on a pivot P with respect to the first side guide 10 .
  • a plate spring (elastic member) 17 is interposed between the first side guide 10 and the lever 15 .
  • the plate spring 17 is formed to have substantially a U shape.
  • a half portion of the plate spring 17 is set in projecting portions 15 a formed on an inner surface of the lever 15 while being fit with these portions, and an end portion of the other half portion is set to abut against a protruding portion 18 formed on the wall surface of the first side guide 10 .
  • the plate spring 17 serves to elastically urge the lever 15 to pivot in the counter-clockwise direction on the pivot P.
  • a lower end surface portion of the lever 15 has an engagement stopper nail portion 31 formed thereon as shown in FIG. 5 .
  • the lever 15 and the engagement stopper nail portion 31 form an engagement portion 35 together.
  • the engagement stopper nail portion 31 digs into the rubber sheet 7 on the first support plate 3 A so as to fixate the lever 15 and the first side guide 10 .
  • the engagement stopper nail portion 31 digging into the rubber sheet 7 means, in this embodiment, a state in which the surface of the rubber sheet 7 is deformed to depress by the engagement stopper nail portion 31 . Therefore, when the engagement stopper nail portion 31 is released from the rubber sheet 7 , the rubber sheet 7 restores its original state by the elastic force of itself.
  • a stopper portion 32 that projects towards the lever 15 is formed integrally at a lower end portion of the guide wall 6 of the first side guide 10 .
  • the stopper portion 32 serves to regulate the pivoting amount of the lever 15 , which is pivoted by the elastic force of the spring plate 17 , by making the end portion the lever abut against the stopper portion 32 .
  • the engagement stopper nail portion 31 of the lever 15 digs into the rubber sheet 7 , thus creating a certain gap a between the lever 15 and stopper 32 .
  • the rubber sheet 7 may be damaged if the engagement stopper nail portion 31 digs in excessively for a hardness of the rubber sheet 7 . In order to avoid this, the digging amount of the nail portion is adjusted by the stopper portion 32 .
  • FIGS. 6 and 7 are schematic diagrams showing the stopper nail portion 31 provided on the lever 15 and the pivot P to illustrate how they are related with each other in terms of position.
  • the sheet When conveying a sheet while guiding the side edges of the sheet with the first and second side guides 10 and 20 , the sheet in some cases skews.
  • the side guides 10 and 20 receives a force F in the direction that each guide is expanded outwards.
  • the lever 15 is urged by the plate spring 17 and therefore the engagement stopper nail portion 31 is held in a state in which it is pressed against the rubber sheet 7 .
  • a counter-clockwise rotation moment Ma acts on the lever 15 in a direction in which the engagement stopper nail portion 31 further digs in the rubber sheet 7 .
  • the lever 15 is inclined in the direction of the rotation moment Ma, and it is directed to the direction in which the engagement stopper nail portion 31 can easily dig in the rubber sheet 7 used for positioning.
  • the stopper nail portion 31 of the lever 15 serves as a resistant to the positioning rubber sheet 7 so as to regulate the displacement of the first side guide 10 as well as the second side guide 20 .
  • FIGS. 8 and 9 are perspective views of a comparative example to the above-described embodiment of the present invention, which illustrates the positions of the engagement stopper nail portion 31 A of the lever 15 A and the pivot P with relative to each other.
  • This comparative example is different from the above-described embodiment in the point that the engagement stopper nail portion 31 A is formed to be directed in an opposite direction to that of the stopper nail portion 31 shown in FIG. 6 .
  • This comparative example is the same as the embodiment in the position of the pivot P and the other structure than the described point.
  • FIG. 10 is a cross sectional view showing the structure in which the first side guide 10 is installed on the first support plate 3 A, when viewed from a front direction.
  • the first support plate 3 A is provided with a plurality of guide groove portions 2 a in which the first side guide 10 is slidably supported, as explained before.
  • a press piece portion 10 b is integrated with an end of the first side guide 10 , and the press piece portion 10 b is inserted to the guide groove portion 2 c and bent in the horizontal direction to be brought into contact with the rear surface of the surface plate 1 .
  • the nail portion 31 of the lever 15 of the first side guide 10 When the engagement stopper nail portion 31 of the lever 15 of the first side guide 10 is stopped by the positioning rubber sheet 7 serving as a positioning elastic member, the nail portion receives an elastic repulsion force. The force acts on the first support plate 3 A of the first side guide 10 to float together with the lever 15 .
  • the press piece portion 10 b is formed to be integrated with an end portion of the first side guide 10 as described above, thereby inhibiting the floating up of the first side guide 10 .
  • sheets P are placed between the first and second side guides 10 and 20 on the tray 130 .
  • the upper end portion of the lever 15 of the first side guide 10 is fingered to pivot the lever 15 on the pivot P in the clockwise direction.
  • the stopper nail portion 31 of the lever 15 is removed from the rubber sheet 7 , thereby releasing the lock.
  • the first side guide 10 is slid to fit with the width of the sheets. Due to this adjustment, the second side guide 20 is moved at the same time by the same amount.
  • the engagement stopper nail portion 31 of the lever 15 is made to dig in the rubber sheet 7 to fixate the lever 15 .
  • this structure it is possible to position and fixate the first and second side guides 10 and 20 in a stepless manner.
  • the first and second side guides 10 and 20 can be fixated while setting them to perfectly fit with the respective side edges of the sheets.
  • the engagement stopper nail portion 31 is formed to be directed in a direction that the nails dig into the rubber sheet 7 against the force serving to outwardly expand the first and second side guides 10 and 20 .
  • the first and second side guides 10 and 20 are not displaced along with the lever 15 , and they can be maintained certainly at predetermined positions respectively.
  • the above-described embodiment has such a structure that the first and second side guides 10 and 20 are slid in opposite directions from each other by the same amount as shown in FIG. 3 ; however the invention is not limited to this structure, but it can take a structure, for example, that one of the side guides is fixated and only the other one is formed to be slidable. In this case, naturally, the lever 15 is provided for the slidable side guide.
  • the lever 15 is formed as a separate member from the first side guide 10 ; however it is possible that the lever function can be equipped in a part of the side guide 10 itself.
  • an engagement stopper nail portion is provided for the lower end portion of the side guide 10 and an urging force to make the stopper nail portion to dig into the positioning rubber sheet 7 is applied at all times. Then, the engagement stopper nail portion is released from the positioning rubber sheet 7 as needed, for example, when sliding the side guide 10 .
  • lever 15 , pivot mechanism 30 and plate spring 17 are formed to be integrated with the first side guide 10 .
  • the lever 15 is provided at a longitudinal center of the first side guide 10 ; however the lever 15 may be provided on either one of the longitudinal end portions of the first side guide 10 .
  • the engagement stopper nail portion 31 may be formed longer in the longitudinal direction of the rubber sheet 7 .
  • the sheet-like rubber material is used as the positioning elastic member 7 ; however it is alternatively possible to use a thick block-like rubber material.
  • the sheet side guiding device S is provided for the tray 130 , which is a manual sheet feeding unit.
  • the present invention is not limited to this structure, but the guiding device S may be provided for the above-described automatic original sheet feeding unit 102 or within the sheet feeding cassettes 113 and 114 in the feeding unit 112 .
  • the sheet side guiding device is used for the digital copying machine F; however the guiding device may be used for ordinary analog-mode copying machines.
  • the present invention can be applied to all types of image forming apparatus including scanners and facsimiles.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US10/925,994 2003-08-29 2004-08-26 Sheet side guiding device, sheet feeding device and image forming apparatus Abandoned US20050062218A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003-307431 2003-08-29
JP2003307431A JP4210183B2 (ja) 2003-08-29 2003-08-29 用紙幅ガイド装置

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US20050062218A1 true US20050062218A1 (en) 2005-03-24

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ID=34308395

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Application Number Title Priority Date Filing Date
US10/925,994 Abandoned US20050062218A1 (en) 2003-08-29 2004-08-26 Sheet side guiding device, sheet feeding device and image forming apparatus

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US (1) US20050062218A1 (enrdf_load_stackoverflow)
JP (1) JP4210183B2 (enrdf_load_stackoverflow)
CN (1) CN100409109C (enrdf_load_stackoverflow)

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US20040188924A1 (en) * 2003-03-28 2004-09-30 Brother Kogyo Kabushiki Kaisha Sheet feed cassette
US20060113723A1 (en) * 2004-11-30 2006-06-01 Brother Kogyo Kabushiki Kaisha Sheet-feeding cassette and image forming apparatus
US20060182450A1 (en) * 2004-11-12 2006-08-17 Canon Kabushiki Kaisha Sheet loading apparatus and recording apparatus
US20070057436A1 (en) * 2005-09-15 2007-03-15 Brother Kogyo Kabushiki Kaisha Document holding tray, document conveying apparatus, and image reading apparatus
US20070114713A1 (en) * 2005-11-21 2007-05-24 Kyocera Mita Corporation Image forming apparatus and sheet feeding cassette
US20080079214A1 (en) * 2006-09-29 2008-04-03 Canon Kabushiki Kaisha Sheet feeding apparatus and image forming apparatus
US20080265495A1 (en) * 2004-01-17 2008-10-30 Dirk Dobrindt Apparatus for the Alignment of a Stack of Sheets
US20090243189A1 (en) * 2008-03-25 2009-10-01 Brother Kogyo Kabushiki Kaisha Document Feeder and Image Scanning Device Provided with the Same
US20100171259A1 (en) * 2009-01-05 2010-07-08 Samsung Electronics Co., Ltd. Paper supply unit
US20110285075A1 (en) * 2010-05-18 2011-11-24 Konica Minolta Business Technologies, Inc. Paper sheet cassette and image forming device
US20160096699A1 (en) * 2014-10-06 2016-04-07 Kyocera Document Solutions Inc. Sheet feeding device and image forming apparatus
US20190070869A1 (en) * 2017-09-04 2019-03-07 Seiko Epson Corporation Medium feeding device

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US8708335B2 (en) * 2011-06-29 2014-04-29 Brother Kogyo Kabushiki Kaisha Sheet conveyer device
CN102951316B (zh) * 2011-08-19 2014-12-31 广州广电运通金融电子股份有限公司 薄片类介质堆叠导向装置及基于该装置的控制系统和方法
KR101440965B1 (ko) * 2013-06-19 2014-09-23 신우준 급지장치용 이중급지 방지장치
JP6296337B2 (ja) * 2014-03-14 2018-03-20 株式会社リコー 用紙載置装置および画像形成装置
JP6862991B2 (ja) * 2017-03-28 2021-04-21 株式会社リコー 給紙カセット、及び、画像形成装置
JP7034786B2 (ja) * 2018-03-20 2022-03-14 キヤノン株式会社 シート収容装置、及び画像形成装置

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CN1313337C (zh) * 2002-02-04 2007-05-02 尼司卡股份有限公司 纸张传送供给装置及使用该装置的原稿自动传送供给装置

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040188924A1 (en) * 2003-03-28 2004-09-30 Brother Kogyo Kabushiki Kaisha Sheet feed cassette
US7377509B2 (en) * 2003-03-28 2008-05-27 Brother Kogyo Kabushiki Kaisha Sheet feed cassette
US20080265495A1 (en) * 2004-01-17 2008-10-30 Dirk Dobrindt Apparatus for the Alignment of a Stack of Sheets
US7559548B2 (en) * 2004-01-17 2009-07-14 Eastman Kodak Company Apparatus for the alignment of a stack of sheets
US20060182450A1 (en) * 2004-11-12 2006-08-17 Canon Kabushiki Kaisha Sheet loading apparatus and recording apparatus
US7766321B2 (en) * 2004-11-12 2010-08-03 Canon Kabushiki Kaisha Sheet loading apparatus and recording apparatus
US20060113723A1 (en) * 2004-11-30 2006-06-01 Brother Kogyo Kabushiki Kaisha Sheet-feeding cassette and image forming apparatus
US7464927B2 (en) * 2004-11-30 2008-12-16 Brother Kogyo Kabushiki Kaisha Sheet-feeding cassette and image forming apparatus
US20070057436A1 (en) * 2005-09-15 2007-03-15 Brother Kogyo Kabushiki Kaisha Document holding tray, document conveying apparatus, and image reading apparatus
US8282094B2 (en) * 2005-09-15 2012-10-09 Brother Kogyo Kabushiki Kaisha Document holding tray, document conveying apparatus, and image reading apparatus
US20070114713A1 (en) * 2005-11-21 2007-05-24 Kyocera Mita Corporation Image forming apparatus and sheet feeding cassette
US7513497B2 (en) * 2005-11-21 2009-04-07 Kyocera Mita Corporation Image forming apparatus and sheet feeding cassette
US7607657B2 (en) * 2006-09-29 2009-10-27 Canon Kabushiki Kaisha Sheet feeding apparatus and image forming apparatus
US20080079214A1 (en) * 2006-09-29 2008-04-03 Canon Kabushiki Kaisha Sheet feeding apparatus and image forming apparatus
US20100001460A1 (en) * 2006-09-29 2010-01-07 Canon Kabushiki Kaisha Sheet feeding apparatus and image forming apparatus
US8020855B2 (en) 2006-09-29 2011-09-20 Canon Kabushiki Kaisha Sheet feeding apparatus and image forming apparatus
US20090243189A1 (en) * 2008-03-25 2009-10-01 Brother Kogyo Kabushiki Kaisha Document Feeder and Image Scanning Device Provided with the Same
US8038141B2 (en) 2008-03-25 2011-10-18 Brother Kogyo Kabushiki Kaisha Document feeder and image scanning device provided with the same
US20100171259A1 (en) * 2009-01-05 2010-07-08 Samsung Electronics Co., Ltd. Paper supply unit
US8469356B2 (en) * 2009-01-05 2013-06-25 Samsung Electronics Co., Ltd Paper supply unit
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US8632066B2 (en) * 2010-05-18 2014-01-21 Konica Minolta Business Technologies, Inc. Paper sheet cassette and image forming device
US20160096699A1 (en) * 2014-10-06 2016-04-07 Kyocera Document Solutions Inc. Sheet feeding device and image forming apparatus
US9376279B2 (en) * 2014-10-06 2016-06-28 Kyocera Document Solutions Inc. Sheet feeding device and image forming apparatus
US20190070869A1 (en) * 2017-09-04 2019-03-07 Seiko Epson Corporation Medium feeding device
US10576758B2 (en) 2017-09-04 2020-03-03 Seiko Epson Corporation Medium feeding device

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CN100409109C (zh) 2008-08-06
JP2005075546A (ja) 2005-03-24
CN1591212A (zh) 2005-03-09
JP4210183B2 (ja) 2009-01-14

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