EP1923339A2 - Alimentateur papier et dispositif de formation d'images - Google Patents

Alimentateur papier et dispositif de formation d'images Download PDF

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Publication number
EP1923339A2
EP1923339A2 EP07021109A EP07021109A EP1923339A2 EP 1923339 A2 EP1923339 A2 EP 1923339A2 EP 07021109 A EP07021109 A EP 07021109A EP 07021109 A EP07021109 A EP 07021109A EP 1923339 A2 EP1923339 A2 EP 1923339A2
Authority
EP
European Patent Office
Prior art keywords
paper feed
feed cassette
cassette
paper
storage unit
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Withdrawn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
EP07021109A
Other languages
German (de)
English (en)
Other versions
EP1923339A3 (fr
Inventor
Satoshi Tanaka
Hideatsu Shimamoto
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.)
Murata Machinery Ltd
Original Assignee
Murata Machinery Ltd
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 Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP1923339A2 publication Critical patent/EP1923339A2/fr
Publication of EP1923339A3 publication Critical patent/EP1923339A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
    • B41J13/103—Sheet holders, retainers, movable guides, or stationary guides for the sheet feeding section
    • 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
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/50—Machine elements
    • B65H2402/53—Guideways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/30—Other features of supports for sheets
    • B65H2405/31—Supports for sheets fully removable from the handling machine, e.g. cassette

Definitions

  • the present invention relates to a paper feeder in which a paper feed cassette for accommodating papers is slidably moved inside a cassette storage unit when the paper feed cassette is pushed into and drawn out from the cassette storage unit, and also relates to an image forming device including the above-described paper feeder.
  • a conventional image forming device such as a facsimile machine and a copier includes a paper feeder having a paper feed cassette for accommodating papers that are transported to a recording unit arranged to record an image.
  • the paper feed cassette is stored in a drawer in the cassette storage unit arranged in a main body portion of the image forming device.
  • a moving mechanism is arranged to move the paper feed cassette which is pushed into and drawn out from the cassette storage unit.
  • a rail-shaped guide portion formed on the paper feed cassette is placed on a roller (a rotating member) that is arranged on the cassette storage unit, and when pushing in and drawing out the paper feed cassette, the guide portion is slidably moved by rotation of the roller smoothly.
  • the paper feed cassette can be quietly pushed in and drawn out with a light force.
  • the paper feeder includes a paper-separating-and-feeding mechanism having a flapper on which the papers are placed inside the paper feed cassette, a paper feed roller arranged on a front end side (on a downstream side of transportation) of the flapper, and a separation pad arranged to be pressed against the paper feed roller.
  • a paper feeder a plurality of papers placed on the flapper inside the paper feed cassette are separated one sheet at a time by rotation of the paper feed roller at a press portion between the paper feed roller and the separation pad, and each paper is transported to a paper transportation path on a downstream side.
  • the paper and the separation pad are rubbed against each other by the rotation of the paper feed roller, the separation pad is oscillated, and the oscillation is transmitted to the paper feed cassette.
  • the oscillation of the paper feed cassette increases, there arises a possibility of affecting an image quality, etc., of an image that is recorded at the recording unit. Therefore, in order to minimize the oscillation, it is necessary to maintain the paper feed cassette stored in the cassette storage unit in a stable condition.
  • the paper feed cassette can be smoothly pushed in and drawn out, sufficient measures have not been taken to maintain the paper feed cassette stored in the cassette storage unit in a stable condition.
  • preferred embodiments of the present invention provide a paper feeder, which makes it possible for a paper feed cassette not only to be pushed into and drawn out from a paper storage unit smoothly, but also makes it possible for the paper feed cassette to be maintained in a stable condition when stored in the cassette storage unit; and an image forming device including the same paper feeder.
  • a paper feeder includes a paper feed cassette arranged to accommodate papers, a cassette storage unit arranged to store the paper feed cassette, a guide portion provided on the paper feed cassette, and a rotating member provided in the cassette storage unit. Moreover, in the above-described paper feeder, when the paper feed cassette is moved along a storing direction thereof inside the cassette storage unit, the guide portion placed on the rotating member is slidably moved by rotation of the rotating member. Further, the above-described paper feeder includes a placement portion in the cassette storage unit to place the guide portion at a storage position where the paper feed cassette is stored in the cassette storage unit.
  • the paper feeder is configured such that the guide portion is placed on the placement portion by surface contact and that a longitudinal size in the storing direction of a portion on which the guide portion is placed by surface contact is greater than a maximum width size in the storing direction of the paper accommodated inside the paper feed cassette.
  • the rotating member protrudes above the placement portion towards a guide portion side of the paper feed cassette, and the paper feed cassette includes a rotating-member engaging portion to be engaged with the rotating member at the storage position.
  • the rotating member is arranged on a rear side (near side) of the placement portion in the storing direction of the cassette storage unit.
  • the paper feeder includes a step portion arranged between the rotating-member engaging portion and the guide portion of the paper feed cassette such that the rotating member passes over the step portion when the paper feed cassette moves from the storage position.
  • the image forming device includes any of the above-described paper feeders.
  • the paper feeder is preferably configured such that when the paper feed cassette is moved along the storing direction thereof inside the cassette storage unit, the guide portion placed on the rotating member is slidably moved by the rotation of the rotating member.
  • the cassette storage unit includes the placement portion on which the guide portion is placed at the storage position where the paper feed cassette is stored in the cassette storage unit. Therefore, the paper feed cassette can be pushed in and drawn out smoothly by being slidably moved inside the cassette storage unit, and since the guide portion is placed on the placement portion, the paper feed cassette stored at the storage position can be maintained in the stable condition. Accordingly, oscillation of the paper feed cassette generated when the paper is transported inside the paper feed cassette can be effectively reduced.
  • the paper feeder is configured such that the guide portion is placed on the placement portion by surface contact
  • the paper feed cassette stored at the storage position can be maintained in a more stable condition, and the oscillation of the paper feed cassette can be reduced more effectively.
  • the longitudinal size in the storing direction of the portion on which the guide portion is placed by surface contact is greater than the maximum width size in the storing direction of the paper accommodated inside the paper feed cassette, the oscillation can be prevented from being transmitted from the paper feed cassette to a full width of the transported paper, and the paper can be accurately transported.
  • the paper feeder is configured such that the rotating member protrudes above the placement portion towards the guide portion side of the paper feed cassette and that the paper feed cassette includes the rotating-member engaging portion to be engaged with the rotating member at the storage position. Therefore, when the paper feed cassette is moved inside the cassette storage unit, the guide portion is placed on the rotating member, and when the paper feed cassette is stored at the storage position, the guide portion is placed on the placement portion. Accordingly, with this simple configuration, the paper feed cassette can be slidably moved smoothly and also can be maintained stably at the storage position.
  • the rotating member is arranged on the rear side of the placement portion in the storing direction of the cassette storage unit, when pushing in and drawing out the paper feed cassette, the guide portion can be smoothly moved by the rotating member.
  • the paper feeder includes the step portion arranged between the rotating-member engaging portion and the guide portion of the paper feed cassette such that the rotating member passes over the step portion when the paper feed cassette moves from the storage position. Accordingly, with this simple configuration, resistance can be applied to a force which moves the paper feed cassette when the paper feed cassette is pushed in and drawn out. Moreover, a possibility that the paper feed cassette stored at the storage position moves improperly can be reduced.
  • the image forming device includes the above described paper feeder. Therefore, the paper feed cassette can be maintained in the stable condition, and an image quality of an image formed on the paper is improved.
  • Fig. 1 is a perspective view illustrating an external-configuration example of an image forming device including a paper feeder according to a preferred embodiment of the present invention.
  • Fig. 2 is a sectional side view illustrating a configuration example of a cassette storage unit and a paper feed cassette stored in the cassette storage unit.
  • Figs. 3A and 3B illustrate a configuration example of the paper feed cassette.
  • Fig. 3A is a plan view
  • Fig. 3B is a side view.
  • Fig. 4 is a sectional side view illustrating a configuration example of the cassette storage unit.
  • Fig. 5 is a partially enlarged view illustrating a portion on a side surface of the paper feed cassette stored in the cassette storage unit.
  • Fig. 6 illustrates operations performed when the paper feed cassette is drawn out from the cassette storage unit.
  • Fig. 1 is a perspective view illustrating an external-configuration example of an image forming device including a paper feeder according to a preferred embodiment of the present invention.
  • the image forming device includes the paper feed cassette
  • the image forming device to which the present invention is applied may be any one of a copier, a facsimile machine, a printer, and/or a multi function peripheral having a coping function, a facsimile function, and a printer function, etc.
  • An image forming device 1 illustrated in Fig. 1 includes a scanning unit 2 arranged on an upper side thereof and a recording unit 3 arranged on a lower side thereof.
  • the scanning unit 2 includes an image scanning device 4 arranged to read an image of an original document by scanning, an operation panel 5 attached to a front surface of the image scanning device 4, and an original-document-pressing cover 6 arranged such that one side thereof is attached to an upper portion of the image scanning device 4 by a hinge mechanism (not illustrated), which mechanism allows the cover 6 to be opened and closed.
  • An Automatic Document Feeder (ADF) 7 that transports the original document to the image scanning device 4 is arranged on one end of the original-document-pressing cover 6.
  • the ADF 7 sequentially transports a plurality of original documents placed on an original-document supply tray 8, and after an image of the original document is scanned at the image scanning device 4, discharges the original document onto an original-document discharge tray 9.
  • the recording unit 3 includes a recording device 11 arranged to record the image on a paper and a paper feeder 10 arranged to supply the paper to the recording unit 11.
  • the paper feeder 10 includes a paper feed cassette 20 arranged to accommodate the papers and a cassette storage unit 40 arranged in a main body casing 10a of the paper feeder 10 that stores the paper feed cassette 20.
  • a direction in which the paper feed cassette 20 is stored in the cassette storage unit 40 will be referred to as a storing direction
  • a direction in which the papers in the paper feed cassette 20 are transported will be referred to as a paper feeding direction
  • the storing direction is perpendicular or substantially perpendicular to the paper feeding direction.
  • Fig. 2 is a schematic-sectional-side view of the paper feed cassette 20 stored in the cassette storage unit 40 viewed from a rear side (near side) in the storing direction.
  • Figs. 3A and 3B illustrate the paper feed cassette 20
  • Fig. 3A is a plan view
  • Fig. 3B is a side view viewed from the front of the paper feeding direction.
  • Fig. 4 is a sectional side view illustrating the cassette storage unit 40 viewed from the front of the paper feeding direction.
  • the paper feed cassette 20 accommodating papers W is surrounded on all four sides by side walls 30 and has a rectangular box shape with its upper portion open.
  • the paper feed cassette 20 includes a front cover 31 attached to the side wall 30 arranged on the rear side in the storing direction, whereby the cassette 20 can be pushed into and drawn out from the cassette storage unit 40 in a drawer way that opens towards a front surface of the image forming device 1.
  • a flapper 22 is arranged such that the flapper 22 having a pivot spindle 21 as a supporting point can pivot in a vertical direction, and a coil spring 23 is arranged on a lower surface side of the flapper 22 and is used as an urging member that urges an pivoting end of the flapper 22 upward.
  • a plate-like end guide 24 is arranged at a position adjacent to a rear end portion in the paper feeding direction of the flapper 22 such that a trailing edge of the papers W placed on the flapper 22 makes contact with the end guide 24.
  • a shaft 25 extending in a horizontal direction which is perpendicular or substantially perpendicular to the paper feeding direction is arranged above a front end portion in the paper feeding direction of the flapper 22, and a paper feed roller 26 is attached to a middle portion of the shaft 25.
  • Each end portion of the shaft 25 is axially supported on the respective side walls 30 of the paper feed cassette 20.
  • a drive transmission mechanism (not illustrated), which is arranged on the side of the cassette storage unit 40, engages with one end of the shaft 25, whereby power from a source of drive power such as a motor (not illustrated) arranged in the paper feeder 10 is transmitted to the shaft 25 to rotate the paper feed roller 26.
  • a separation pad supporting member 27 with a separation pad 27a attached thereto is arranged at a position adjacent to the front end portion in the paper feeding direction of the flapper 22.
  • the separation pad supporting member 27 is urged upward by a coil spring 27b arranged between the separation pad supporting member 27 and a bottom portion of the paper feed cassette 20, and the separation pad 27a attached to an upper surface of the separation pad supporting member 27 is pressed against a lower surface of the paper feed roller 26.
  • a friction coefficient of the separation pad 27a with respect to the papers is lower than a friction coefficient of the paper feed roller 26 with respect to the papers, and is greater than a friction coefficient between the papers.
  • a sheet-shaped member composed of an urethane resin material or other suitable material can be used as the separation pad 27a. Accordingly, the paper feed roller 26 is pressed against an upper surface of a front end portion in the paper feeding direction of the papers W placed on the flapper 22 while the paper feed roller 26 is also pressed against the separation pad 27a.
  • a paper-separating-and-feeding mechanism 29 that separates and feeds the papers W in the paper feed cassette 20 can be configured by the paper feed roller 26 and the separation pad 27a.
  • a guide rail 32 is arranged on respective outer side surfaces of the side walls 30 on both sides with respect to the storing direction of the paper feed cassette 20.
  • the guide rails 32 are projected or expanded in a substantially rectangular shape in their cross section and linearly extended along the storing direction.
  • a plane guide surface (a guide portion) 33 that extends along the storing direction is arranged on a lower surface of the guide rail 32, and a roller engaging portion 34 that engages with a roller 43 to be described below is arranged on an end portion of the guide surface 33 that is adjacent to the front cover 31.
  • the roller engaging portion 34 is a concave portion having a semicircular shape arranged along an outer peripheral surface of the roller 43.
  • a small-protrusion-shaped step portion 35 is arranged such that the step portion 35 slightly protrudes downward below the guide surface 33 and the roller engaging portion 34.
  • a front side (an inner side) in the storing direction of the guide rail 32 protrudes from the side wall 30 that is arranged on a rear side of the paper feed cassette 20.
  • a small-protrusion-shaped latching portion 36 is arranged on an upper surface of the protruded portion, and a slope portion 37 extended from the guide surface 33 is arranged on a lower surface of the protruded portion.
  • the slope portion 37 has a slope shape that gradually slants upward from the rear side towards the front side in the storing direction.
  • FIG 3 illustrates only a side surface of the guide rail 32 that is arranged on the front in the paper feeding direction of the paper feed cassette 20, however, the other guide rail 32 that is arranged on the back in the paper feeding direction includes a similar configuration as that of the above-described guide rail 32.
  • the cassette storage unit 40 is a substantially-rectangular-concave portion that stores the paper feed cassette 20 in a drawer configuration.
  • Fig. 4 illustrates only one side of the unit 40 and it is noted that the other (opposite) side of the unit 40 has a similar configuration as illustrated in Fig. 4.
  • a raised portion 41 extends along the storing direction, and the raised portion 41 has a plane placement surface (a placement portion) 42 on its upper surface.
  • the placement surface 42 extends from a portion adjacent to an opening 40a towards an inner most portion of the cassette storage unit 40.
  • a longitudinal size in the storing direction of a portion at which the guide surface 33 is placed on the placement surface 42 by surface contact is greater than a maximum width size (a width size of the paper of a maximum size that can be accommodated) in the storing direction of the papers W accommodated inside the paper feed cassette 20.
  • the roller 43 is arranged on an end portion on the rear side in the storing direction of the placement surface 42 (i.e., an end portion adjacent to the opening 40a).
  • the roller 43 is a cylindrical rotating member including a rotating shaft 43a arranged in the horizontal direction that is perpendicular or substantially perpendicular to the storing direction, and an upper surface (i.e., an upper side surface with respect to the rotating shaft 43a) of the roller 43 is slightly projected upward from the placement surface 42.
  • a stick-shaped guide bar 44 extending along the storing direction is arranged above the placement surface 42.
  • the guide bar 44 guides the corresponding guide rail 32 of the paper feed cassette 20, which is inserted between the placement surface 42 and the guide bar 44, along the storing direction.
  • An end portion 44a on the rear side in the storing direction is supported in the cassette storage unit 40.
  • a small-protrusion-shaped latching projection 44b projecting downward is arranged in the middle of the guide bar 44.
  • the guide bar 44 is not steadily fixed in the cassette storage unit 40, but is arranged such that the guide bar 44 can slightly move in a vertical direction with the end portion 44a as a supporting point.
  • the guide surface 33 of the guide rail 32 arranged on the paper feed cassette 20, the placement surface 42 and the roller 43 arranged on the cassette storage unit 40 together constitute a moving mechanism that slidably moves the paper feed cassette 20 arranged to be pushed into and drawn out from the cassette storage unit 40.
  • Fig. 5 is a partially enlarged view illustrating a portion of a side surface of the paper feed cassette 20 stored in the cassette storage unit 40.
  • a position at which the paper feed cassette 20 is pushed into the inner most portion and fully stored in the cassette storage unit 40 will be referred to as a storage position of the paper feed cassette 20.
  • the paper feed cassette 20 is at the storage position.
  • the roller 43 of the cassette storage unit 40 is engaged with the roller engaging portion 34 of the paper feed cassette 20, and the guide surface 33 of the paper feed cassette 20 is placed on the placement surface 42 of the cassette storage unit 40 by surface contact.
  • the separation pad supporting member 27 In the transportation of the papers W, when the paper W that is in contact with the separation pad 27a is transported, since the separation pad 27a and the paper W are rubbed against each other, the separation pad supporting member 27 is slightly oscillated by a restoring force of the coil spring 27b, and the oscillation is transmitted to the paper feed cassette 20.
  • the paper feed cassette 20 in the present preferred embodiment is arranged such that the guide surface 33 is placed on the placement surface 42 by surface contact at the storage position, the paper feed cassette 20 can be stably maintained at the storage position in the cassette storage unit 40. Accordingly, even if the separation pad supporting member 27 is oscillated when the papers W are transported, the paper feed cassette 20 can be effectively prevented from being oscillated (vibrated sympathetically) by the oscillation.
  • Figs. 6A-6C illustrate the process.
  • the roller 43 that is engaged with the roller engaging portion 34 passes over the step portion 35. Consequently, resistance is applied to the force to draw out the paper feed cassette 20.
  • the guide surface 33 of the paper feed cassette 20 is placed on the roller 43.
  • the latching portion 36 of the guide rail 32 makes contact with the latching projection 44b of the guide bar 44 and is latched, and the movement of the paper feed cassette 20 is stopped at the above-described position. Therefore, when the paper feed cassette 20 is drawn out, the paper feed cassette 20 can be prevented from improperly falling off of the cassette storage unit 40.
  • drawing out the paper feed cassette 20 further from the above-described position to extract the paper feed cassette 20 from the cassette storage unit 40 as illustrated in Fig. 6C
  • the paper feed cassette 20 is drawn out towards the near side while the latching portion 36 is moved to a lower side of the latching projection 44b.
  • the slope portion 37 is arranged on the lower surface of a rear end portion of the guide rail 32, the paper feed cassette 20 can be extracted without having the guide rail 32 make contact with the placement surface 42.
  • the guide surface 33 placed on the roller 43 is slidably moved along the storing direction by the rotation of the roller 43. Then, the roller 43 passes over the step portion 35 before the paper feed cassette 20 is stored at the storage position.
  • the roller 43 is engaged with the roller engaging portion 34, whereby the guide surface 33 is placed on the placement surface 42.
  • the guide surfaces 33 placed on the rollers 43 are slidably moved by the rotation of the rollers 43, and at the storage position where the paper feed cassette 20 is stored in the cassette storage unit 40, the guide surfaces 33 are placed on the placement surfaces 42 by surface contact. Accordingly, the paper feed cassette 20 can be pushed in and drawn out smoothly by being slidably moved inside the cassette storage unit 40, and moreover, the paper feed cassette 20 stored at the storage position can be stably maintained. Therefore, the oscillation of the paper feed cassette 20 generated when the papers inside the paper feed cassette 20 are transported can be effectively reduced, and consequently, problems caused by the oscillation of the paper feed cassette 20 can be prevented.
  • the rollers 43 protrude from the placement surfaces 42 towards the side of the guide surfaces 33, and the roller engaging portions 34 that are engaged with the rollers 43 at the storage position are arranged on the paper feed cassette 20, when the paper feed cassette 20 is moved inside the cassette storage unit 40, the guide surfaces 33 are placed on the rollers 43, and when the paper feed cassette 20 is stored at the storage position, the guide surfaces 33 are placed on the placement surfaces 42 by surface contact. Accordingly, with this simple configuration, the paper feed cassette 20 can be slidably moved smoothly, and the oscillation at the storage position can be reduced.
  • the rollers 43 are arranged on the rear side of the placement surfaces 42 in the storing direction of the cassette storage unit 40, when pushing in and drawing out the paper feed cassette 20, the guide surfaces 33 can be smoothly moved by the rollers 43.
  • the resistance can be applied to the force to push in and draw out the paper feed cassette 20. Therefore, the paper feed cassette 20 stored at the storage position can be effectively prevented from being improperly moved.
  • the guide portion and the rotating member arranged in the paper feeder of the present invention are not limited to the guide surfaces 33 and the rollers 43 described in the above-described preferred embodiments, and provided that the guide portion placed on the rotating member is arranged to be slidably moved by the rotation of the rotating member, specific forms, etc., of the guide portion and the rotating member may have other forms, etc.
  • the placement portion included in the moving mechanism has a shape on which the guide portion of the paper feed cassette stored at the storage position can be placed, the placement portion may have other shapes, etc., that are different from that of the above-described preferred embodiments.
  • the configuration of the paper-separating-and-feeding mechanism 29 including the flapper 22, the paper feed roller 26, and the separation pad 27a arranged in the paper feed cassette 20 in the above-described preferred embodiments is just an example. Therefore, other than that disclosed in the paper-separating-and-feeding mechanism 29 in which the paper feed roller 26 is attached to the paper feed cassette 20, the paper feed roller 26 may be attached inside the cassette storage unit 40 such that when the paper feed cassette 20 is stored in the cassette storage unit 40, the paper feed roller 26 of the cassette storage unit 40 makes contact with the separation pad 27a of the paper feed cassette 20. In such a case, since the guide surfaces 33 are placed on the placement surfaces 42, the paper feed cassette 20 of the present preferred embodiment can be stably maintained at the storage position.
  • a contact state of the paper feed roller 26 and the separation pad 27a can be in good condition, the oscillation of the paper feed cassette 20 can be reduced, and the paper transportation can be stably performed. It is not necessarily required to provide the separation pad supporting member 27 of the paper-separating-and-feeding mechanism 29, and the separation pad 27a may be directly attached to the side wall 30, etc., of the paper feed cassette 20.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP07021109A 2006-11-15 2007-10-29 Alimentateur papier et dispositif de formation d'images Withdrawn EP1923339A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006309611A JP2008120588A (ja) 2006-11-15 2006-11-15 給紙装置及び画像形成装置

Publications (2)

Publication Number Publication Date
EP1923339A2 true EP1923339A2 (fr) 2008-05-21
EP1923339A3 EP1923339A3 (fr) 2009-09-09

Family

ID=39099651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07021109A Withdrawn EP1923339A3 (fr) 2006-11-15 2007-10-29 Alimentateur papier et dispositif de formation d'images

Country Status (4)

Country Link
US (1) US20080111295A1 (fr)
EP (1) EP1923339A3 (fr)
JP (1) JP2008120588A (fr)
CN (1) CN101181966A (fr)

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JP4968933B2 (ja) * 2007-08-31 2012-07-04 キヤノン株式会社 画像形成装置
JP5505019B2 (ja) * 2010-03-26 2014-05-28 コニカミノルタ株式会社 用紙排出装置、後処理装置、画像形成システム
JP5472650B2 (ja) * 2011-06-16 2014-04-16 コニカミノルタ株式会社 画像形成装置
JP5472649B2 (ja) * 2011-06-16 2014-04-16 コニカミノルタ株式会社 画像形成装置
JP5401517B2 (ja) 2011-08-23 2014-01-29 株式会社沖データ 媒体カセット収容装置および画像形成装置
JP5980026B2 (ja) * 2012-07-18 2016-08-31 キヤノン株式会社 シート給送装置及び画像形成装置
JP6537254B2 (ja) * 2014-12-04 2019-07-03 キヤノン株式会社 シート積載装置及び画像形成装置
JP6473963B2 (ja) * 2014-12-12 2019-02-27 株式会社リコー 給紙装置及び画像形成装置
JP6395675B2 (ja) * 2015-07-29 2018-09-26 キヤノンファインテックニスカ株式会社 給送装置及びこれを備える画像形成システム
JP6705274B2 (ja) * 2016-04-22 2020-06-03 コニカミノルタ株式会社 抽斗装置及びこれを用いた画像形成装置
CN106672680A (zh) * 2017-01-16 2017-05-17 天津贵圣源科技有限公司 便于转移打印纸张的打印装置
CN113370698A (zh) * 2021-06-08 2021-09-10 徐州苏博高新技术有限公司 一种计算机软件设计用辅助装置

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US5413409A (en) * 1992-09-16 1995-05-09 Mita Industrial Co., Ltd. Device for supporting a paper cassette
JPH09240849A (ja) * 1996-03-11 1997-09-16 Ricoh Co Ltd 画像形成装置
JP2004131211A (ja) * 2002-10-09 2004-04-30 Ricoh Co Ltd 引き出し装置、及び、その引き出し装置を具備する給送装置、並びに、画像形成装置

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Publication number Priority date Publication date Assignee Title
US5413409A (en) * 1992-09-16 1995-05-09 Mita Industrial Co., Ltd. Device for supporting a paper cassette
JPH09240849A (ja) * 1996-03-11 1997-09-16 Ricoh Co Ltd 画像形成装置
JP2004131211A (ja) * 2002-10-09 2004-04-30 Ricoh Co Ltd 引き出し装置、及び、その引き出し装置を具備する給送装置、並びに、画像形成装置

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EP1923339A3 (fr) 2009-09-09
US20080111295A1 (en) 2008-05-15
CN101181966A (zh) 2008-05-21
JP2008120588A (ja) 2008-05-29

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