Holder Moved Parallel To Plane Of Sheets Patents (Class 271/164)
  • Patent number: 8641038
    Abstract: An image recording device includes a tray configured to hold a first recording medium, an insertion guide configured to move between a guide position for guiding a second recording medium into a common path and a non-guide position, a conveyor configured to convey the tray along the common path in a first direction and to convey the second recording medium along the common path in a second direction opposite to the first direction, a recording unit configured to record an image selectively on the first recording medium and the second recording medium, a stopper disposed along the common path, and a moving unit configured to move the stopper between a retracted position and a protruding position in response to movement of the insertion guide between the non-guide position and the guide position. The stopper in the protruding position protrudes into the common path to stop the tray.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: February 4, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tetsuo Asada, Iwane Sano, Shingo Ito
  • Patent number: 8641032
    Abstract: A sheet cassette includes a lower stage side tray that accommodates a sheet, an upper stage side tray that is slidable with respect to the lower stage side tray on an upper portion of the lower stage side tray and accommodates the sheet, and a discharged sheet tray that is slidable with respect to the upper stage side tray, is displaceable to a position to receive the sheet discharged after being recorded on, and covers an upper portion of the upper stage side tray. The upper stage side tray and the discharged sheet tray are configured to be driven by a driving unit, and the discharged sheet tray is displaced by the driving unit to a position to receive the sheet.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: February 4, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Kazuhisa Nakamura, Atsuhiko Takeuchi, Kazumasa Harada, Kensuke Tamai, Kazutoshi Matsuzaki
  • Patent number: 8616543
    Abstract: A guide device includes a plate on which a first medium is to be placed, and provided above a space in which a container is to be inserted, a moving member that moves along a surface of the plate in a supply direction of the first medium or in an opposite direction, a substantially sheetlike guide member that guides the first medium in the supply direction, and a drawing member that draws the moving member toward the plate. When the container is taken out of the space, the moving member is drawn toward the plate in the opposite direction by the drawing member, and the guide member withdraws to a position superposed on the plate. When the container is inserted in the space, the moving member is pushed in the supply direction by the container, and the guide member protrudes from the position in the supply direction.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: December 31, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shun Ikeura, Kenichi Ishikura, Takayuki Yazawa
  • Patent number: 8608154
    Abstract: A sheet tray for feeding a sheet toward an image forming part of an image forming apparatus. The sheet tray is detachably attachable to the image forming apparatus in a sheet feeding direction and includes a tray portion, a detachable cover member provided apart from the tray portion with a gap interposed therebetween through which the sheet passes in an engaged state in which the tray portion and the cover member are engaged with each other, a lock assembly that engages the tray portion and the cover member with each other in the engaged state and disengages the cover member and the tray portion from each other in a disengaged state, and a switching mechanism that puts the lock assembly into the engaged state in absence of the sheet within the gap and into the disengaged state at presence of the sheet within the gap.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: December 17, 2013
    Assignee: Ricoh Company, Ltd.
    Inventor: Shintaroh Yamada
  • Patent number: 8608159
    Abstract: A recording apparatus includes a cassette having a stacking region for stacking recording materials mounted to main assembly of the recording apparatus; a feeder for feeding the recording material stacked to the cassette; a sheet discharge portion for sheet discharging the recording material having been subjected to a recording operation; a tray movable between a first position where the recording material is incapable of being discharged from the sheet discharge portion and a second position where the recording material is capable of being discharged from a main assembly of the recording apparatus; a holding portion, disposed on the tray, for holding the recording material discharged when the tray is at the second position; an auxiliary portion disposed on the tray and capable of stacking the recording material with the stacking region when the tray is at the second position.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 17, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiki Takeuchi, Haruo Uchida
  • Patent number: 8608160
    Abstract: A recording apparatus includes a slider that has a cam face with which a cam of the stopper comes into sliding contact and moves in the insertion direction from a first position to a second position with a resistance when the cassette is inserted into the mounting unit. The cam face includes a first cam face on which the cam slides when the slider moves from the first position to the second position and a press cam face against which the cam presses when the paper sheet comes into contact with the stopper. The press cam face has an inclination relative to a reference straight line which is perpendicular to a plane parallel to the insertion direction of the cassette which is greater than that relative to a straight line which extends from the contact point between the press cam face and the cam to the shaft.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: December 17, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Yu Shinagawa, Hiroki Chino, Yosuke Nakano, Tetsuya Tamura
  • Patent number: 8573584
    Abstract: An image forming apparatus including a sheet container, a sheet stacking member to closably open the sheet container; a restriction unit to restrict a swinging movement of the sheet stacking member, and a stopper mechanism to restrict insertion of the sheet container into the image forming apparatus in a state in which the sheet stacking member swings open from the sheet container. The stopper mechanism includes a stopped member provided to the sheet container and being movable vertically along the swinging movement of the sheet stacking member, and a stopper member provided to the image forming apparatus and being contactable with the stopped member. The stopped member includes a stopped surface contacted by the stopper member in a state in which the stopped member is lifted; and a switching surface adjacent to the stopped surface and vertically moving the stopped member by contact against the stopper member.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: November 5, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Ryoh Idehara, Satoshi Kunioka
  • Patent number: 8561979
    Abstract: An open/close mechanism can be used for paper trays of an image forming apparatus. The open/close mechanism includes a plate member provided on a side of a housing of the image forming apparatus and configured to pivot upon an axis between an open position and a close position, and a box member that is arranged in the housing beneath the plate member and that can be drawn out of the housing from the side. The open/close mechanism includes also includes a restricting unit that is coupled to the plate member and that abuts against the box member when the box member is set in the housing and when the plate member is in the open position thereby restricting detachment of the box member from the housing.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: October 22, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshikane Nishii, Kazuhiro Wakamatsu, Yasuhide Ohkubo, Ippei Kimura, Mizuna Tanaka, Haruyuki Honda, Masafumi Takahira, Hiroshi Fujiwara
  • Patent number: 8556253
    Abstract: The sheet feeding apparatus includes an apparatus body, a sheet cassette, a positioning member which includes a positioning pin arranged at one of the apparatus body and the sheet cassette and a positioning hole arranged at the other of the apparatus body and the sheet cassette and which performs positioning of the sheet cassette owing to fitting of the positioning pin with the positioning hole when the sheet cassette is slidingly moved to an attached position, and a restriction member which performs restriction of movement of the sheet cassette in the horizontal direction being perpendicular to a sliding direction from a drawn position to a fitting beginning position where fitting of the positioning member begins and which releases restriction of the movement of the sheet cassette in the horizontal direction from the fitting beginning position to the attached position.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: October 15, 2013
    Assignee: Canon Kabushikia Kaisha
    Inventor: Shunsuke Okazaki
  • Patent number: 8517370
    Abstract: An image recording apparatus including a first tray having a first holding portion for holding sheets, a second tray disposed above the first tray and including a second holding portion for holding sheets, a sheet feeder that selectively feeds a sheet from one of the first tray and the second tray in a sheet feed direction, a recording unit that records an image on the sheet fed by the sheet feeder, and a discharge roller that discharges the sheet on which the image is recorded by the recording unit. The second holding portion of the second tray moves above the first holding portion of the first tray. The second tray further includes a discharged sheet receiving portion for receiving the sheet discharged by the discharge roller. The second tray including the discharged sheet receiving portion pivots relative to the first tray.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: August 27, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yukio Shiohara, Tetsuo Asada, Yuji Koga
  • Patent number: 8517374
    Abstract: An image forming device includes: an image forming unit; a casing; a tray; a cover; and a handle portion. The image forming unit is configured to form an image on a sheet. The casing is formed with an opening and configured to accommodate the image forming unit therein. The tray is configured to accommodate in a stacked state a plurality of sheets to be fed toward the image forming unit. The tray is configured to be inserted into the casing through the opening to be attached to the casing and removed from the casing through the opening to be detached from the casing. The cover is configured to be connected to the tray and moved relative to the tray. The cover is configured to cover at least a part of the opening when the tray is attached to the casing. The handle portion is provided at the tray.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: August 27, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshiyuki Washino, Yuji Koga, Wataru Sugiyama
  • Patent number: 8490962
    Abstract: A recording apparatus according to an aspect of the invention includes a sheet feeding cassette that can accommodate a stack of recording materials; a pick-up roller that comes into contact with the top recording material of the recording materials accommodated in the sheet feeding cassette to feed the recording material; a roller holder that is supported at a base end so as to be rotatable and has the pick-up roller at a tip, the pick-up roller being pressed against the recording material; and a lever that is supported at a base end so as to be rotatable and has a pressing portion at a tip, the pressing portion being pressed against the recording material. The lever is disposed on the roller holder and is supported coaxially with the roller holder.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: July 23, 2013
    Assignee: Seiko Epson Corporation
    Inventors: So Ishikawa, Toshimitsu Ohara
  • Patent number: 8469352
    Abstract: An image forming apparatus includes a body, a sheet feed unit, a regulator, an image forming device, and a sheet output unit. The sheet feed unit is removably mounted to the body to store a recording medium. The regulator has a locking portion and is disposed in the sheet feed unit to regulate a position of the medium in a width direction of the medium. The image forming device forms an image on the medium conveyed from the sheet feed unit. The sheet output unit is disposed above the sheet feed unit to stack the medium on which the image is formed by the image forming device. When the sheet feed unit is drawn from the body to a predetermined position, the sheet feed unit is rotatable downward by weight of the sheet feed unit and the sheet output unit rotates upward with rotation of the sheet feed unit.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: June 25, 2013
    Assignee: Ricoh Company, Ltd.
    Inventor: Satoshi Kunioka
  • Publication number: 20130106049
    Abstract: A sheet feeder cassette that can be fitted in and drawn from in a direction perpendicular to a sheet feeding direction, the sheet feeder cassette having: a bottom for receiving a stack of sheets thereon; a pair of side stopper plates provided on the bottom in such a manner to be movable in a sheet-widthwise direction so as to determine a widthwise position of the stack of sheets; and at least one displacement preventive device that is located on the bottom, at a position according to a widthwise position of a loadable maximum size sheet, and that is capable of coming into contact with one of the side stopper plates, wherein when the one of the side stopper plates receives force from a stack of the maximum size sheets placed on the bottom, the displacement preventive device pushes back and supports the side stopper plate due to reaction.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 2, 2013
    Inventors: Ryuji SATO, Kuniaki OHBAYASHI
  • Patent number: 8430394
    Abstract: A sheet feeding device includes a sheet cassette which accommodates stacked sheets. The sheet feeding device further includes a pickup roller, a separation pad, a separating roller pressing the sheet against the separating pad and a holder arm which holds the pickup roller and the separating roller. The sheet feeding device still further includes an urging member configured to urge the separating roller toward the separating pad and includes a supporting portion configured to support a specific portion of the holder arm. When the sheet cassette is removed, the support portion supports the specific portion of the holder arm at a supporting position and the pickup roller is positioned at an upper position.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: April 30, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Junji Uehara
  • Patent number: 8424868
    Abstract: A sheet supplying apparatus, comprising a housing; and a sheet-supply tray which supports a plurality of sheets and which is insertable into the housing. The sheet-supply tray includes at least one first engageable portion. The housing includes at least one second engageable portion which is engaged, in a state in which the sheet-supply tray is inserted in the housing, with the at least one first engageable portion of the sheet-supply tray. The sheet-supply tray further includes a guide portion having an inclined guide surface which guides a movement of each of the sheets supplied from the sheet-supply tray, and at least a portion of the at least one first engageable portion is provided in a rear space located in rear of the guide portion.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: April 23, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tetsuo Asada, Yukio Shiohara
  • Patent number: 8408535
    Abstract: An attachment assist device includes an engaging member, an engaged member, a drawing-force generator, biasing members, and rotational members. The engaging member is provided at one of a main unit and a sub unit detachably attached to the main unit. The engaged member is engaged by the engaging member and provided at the other of the main unit and the sub unit. The drawing-force generator generates a drawing force to draw the sub unit into an interior of the main unit. The biasing members are provided at the drawing-force generator to generate biasing forces in different directions. The rotational members are provided rotatably around support points at the drawing-force generator and engaged with the biasing members. The biasing members are serially connected with the rotational members to convert the biasing forces of the biasing members to the drawing force.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: April 2, 2013
    Assignee: Ricoh Company, Ltd.
    Inventor: Katsuhiko Miki
  • Patent number: 8398069
    Abstract: A paper feeder, a control method thereof, and an image forming apparatus having the same are provided. The paper feeder includes a moving member to push paper loaded on one paper loader to another empty paper loader. With regard to operation of the moving member, the stop time of the moving member may be variable based on a paper size input by a user, which enables a stop position of the moving member to be automatically adjusted based on the paper size, resulting in enhanced user convenience.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: March 19, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seok Heon Chae, Min Gi Kim
  • Patent number: 8398068
    Abstract: An image recording device includes a tray unit, a sheet feeder disposed above the tray unit, a recording unit disposed above the sheet feeder, and a unit for discharging the sheet having an image recorded thereon. The tray unit includes a first tray for holding thereon a first sheet, a second tray disposed above the first tray to hold thereon a second sheet, and a third tray disposed above the first tray. The second tray selectively moves between a first position and a second position. When the second tray is in the first position, the sheet feeder feeds the second sheet from the second tray, and the third tray receives the second sheet discharged from the discharging unit. When the second tray is in the second position, the sheet feeder feeds the first sheet from the first tray, and the first tray, the second tray, and the third tray overlap one another vertically.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: March 19, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tetsuo Asada, Satoru Nakakita
  • Patent number: 8387970
    Abstract: A sheet feeding device includes a sheet storage portion mounted on a device main body so as to be drawn from the device main body and the sheet storage portion stores sheets, a sheet feeding portion that feed a sheet from the sheet storage portion, a pushing portion that applies a force to the sheet storage portion in a drawing direction where the sheet storage portion is drawn from the device main body, a locking mechanism configured to lock the sheet storage portion in the device main body, and a pressing operation member that is pressed in a direction opposite to the drawing direction. A lock of the locking portion is released while interlocking the release of the press of the pressing operation member.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: March 5, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shinsuke Ubayashi
  • Publication number: 20130049292
    Abstract: A media cassette housing system, which may be usable in an image formation apparatus such as a printer or copier, includes: a guide member configured to guide an insertion of a media cassette from an entrance into an installed position of a cassette housing unit and to guide a pulling out of the media cassette from the installed position to the entrance of the cassette housing unit; and a swingable member provided to the guide member and swingable in inserting and pulling directions of the media cassette. The swingable member includes a slide guide surface configured to come into sliding contact with a slide surface of the media cassette upon the insertion and pulling of the medium cassette.
    Type: Application
    Filed: August 16, 2012
    Publication date: February 28, 2013
    Applicant: OKI DATA CORPORATION
    Inventor: Toshiyuki TOTSUKA
  • Publication number: 20130009359
    Abstract: A sheet tray for feeding a sheet toward an image forming part of an image forming apparatus. The sheet tray is detachably attachable to the image forming apparatus in a sheet feeding direction and includes a tray portion, a detachable cover member provided apart from the tray portion with a gap interposed therebetween through which the sheet passes in an engaged state in which the tray portion and the cover member are engaged with each other, a lock assembly that engages the tray portion and the cover member with each other in the engaged state and disengages the cover member and the tray portion from each other in a disengaged state, and a switching mechanism that puts the lock assembly into the engaged state in absence of the sheet within the gap and into the disengaged state at presence of the sheet within the gap.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 10, 2013
    Applicant: RICOH COMPANY, LTD.
    Inventor: Shintaroh Yamada
  • Patent number: 8328185
    Abstract: A medium stack tray comprises a stacking member that stacks a sheet medium and is configured to be wound in a roll, a winding mechanism that winds the stacking member, a regulating mechanism that regulates the stacking member being pulled out to be wound by the winding mechanism, and a releasing mechanism that releases regulation for winding the stacking member by the regulating mechanism. In the stacking member being pulled out, at least a portion of a cross section thereof, in a perpendicular direction to a pull-out direction of the stacking member, has a curved shape. Alternatively, the stacking member is configured to have greater minimum area moment of inertia of a cross section when pulled out, than when wound up.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: December 11, 2012
    Assignee: PFU Limited
    Inventors: Masanari Takabatake, Mieko Sakurai
  • Patent number: 8297614
    Abstract: A recording apparatus includes a cassette having a stacking region for stacking recording materials mounted to main assembly of the recording apparatus; a feeder for feeding the recording material stacked to the cassette; a sheet discharge portion for sheet discharging the recording material having been subjected to a recording operation; a tray movable between a first position where the recording material is incapable of being discharged from the sheet discharge portion and a second position where the recording material is capable of being discharged from a main assembly of the recording apparatus; a holding portion, disposed on the tray, for holding the recording material discharged when the tray is at the second position; an auxiliary portion disposed on the tray and capable of stacking the recording material with the stacking region when the tray is at the second position.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: October 30, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiki Takeuchi, Haruo Uchida
  • Patent number: 8282093
    Abstract: A sheet feeder includes a sheet cassette insertable into a housing in a first direction, a remaining amount detecting member including a contact piece extending in a second direction opposite to the first direction and coming into contact with an uppermost sheet, and detecting a remaining amount of sheets according to a position of the contact piece, and a switching member switching the position of the contact piece between a contact position where the contact piece enters a storage space to come into contact with the uppermost sheet and a retracted position where the contact piece is retracted from the storage space. The position is switched to the contact position when the sheet cassette is inserted into the housing in the first direction and set to a feeding position while switched to the retracted position when the sheet cassette is separated from the feeding position and withdrawn from the housing.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: October 9, 2012
    Assignee: Kyocera Mita Corporation
    Inventor: Yoshio Sugishima
  • Patent number: 8240658
    Abstract: According to one embodiment, an image forming apparatus includes a cassette, a sensor and a controller. The cassette stacks a sheet. The sensor is provided at the rear end of the cassette. When the sensor detects the protrusion of the sheet from the cassette, the controller controls to notify that the sheet protrudes by using an alarm.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: August 14, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki Kaisha
    Inventor: Yousuke Ushiyama
  • Patent number: 8220795
    Abstract: A printer having a sheet tray, a drive for advancing sheets past a marking mechanism, and a picker to remove sheets from an aligned tray includes a load position and a pick position. The trays are selectively moved between the load and pick positions. A transmission is engagable to connect the drive to the tray moving mechanism, whereby the tray is moved between the pick position and the load position by the media sheet advancing drive. The transmission is disengagable to enable advancement of the media sheets without movement of the tray. Starting with both trays in their load positions, one of the trays is moved to its pick position whereat a sheet can be picked; moving the other of the trays to its pick position whereat a sheet of media from each of the trays can be picked; and moving the tray remaining at its pick position from its pick position to its media load position.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: July 17, 2012
    Assignee: Eastman Kodak Company
    Inventors: Randal M. Wong, Juan Belon, Petrica D. Balcan
  • Patent number: 8210524
    Abstract: The inclination in the sliding direction to an inner rail of the sheet cassette is limited by a swing lever which is provided at a roller bearing support member so as to be protruded through the side of the upper guide surface of the inner rail when the sheet cassette is moved and the limitation of the inclination of the sheet cassette by the swing lever is released when the sheet cassette is pulled out.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: July 3, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasuhiro Uchida
  • Patent number: 8205875
    Abstract: A functional unit positioning device for positioning a functional unit detachably attachable to an apparatus body, includes a biasing device that biases the functional unit in a unit-out direction; and a stopper mechanism having a first stopper and a second stopper, the stopper mechanism exerting and releasing control over release of the functional unit. The biasing device biases the functional unit by the biasing device so that the second stopper comes in contact with the first stopper to set the functional unit in a locked position in a unit in-out direction. The biasing device is also configured to change the magnitude of a bias force on the functional unit from low to high when the functional unit is inserted and advanced up to a predetermined position into the apparatus body.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: June 26, 2012
    Assignee: Ricoh Company, Ltd.
    Inventor: Tadashi Kusumi
  • Patent number: 8186670
    Abstract: A sheet supply apparatus includes a supply portion with a sheet bundle supplied via an opening portion, a take-out portion to move the sheet bundle supplied to the supply portion to a take-out position and take out sheets one by one starting from a sheet on an uppermost surface of the sheet bundle, a first door with the opening portion arranged openably which is opened when the sheet bundle is supplied to the supply portion, a second door arranged openably on a middle position when the sheet bundle supplied to the supply portion moves to the take-out position, and a controller to control the first door and second door to open or close.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: May 29, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Haruhiko Horiuchi
  • Patent number: 8132809
    Abstract: A feeder that stores a sheet used to form an image in an image forming apparatus main body and that is configured to be drawn out from the image forming apparatus main body in a perpendicular direction to a sheet conveying direction. The feeder includes: a separation member that is in press-contact with a sheet feed member disposed in the image forming apparatus main body for separating a stored sheet in cooperation with the sheet feed member; an arm part that is attached to the separation member, the separation member being rotatably attached through the arm part; and a rotation mechanism that rotates the separation member downward through the arm part and releases the press contact with the sheet feed member when the feeder is drawn out from the image forming apparatus main body.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: March 13, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Satoru Shiraishi, Yasunobu Gotoh
  • Patent number: 8128084
    Abstract: An image forming apparatus, in which a trailing edge regulation portion is moved to a position according to a sheet contained in a cassette body to regulate a position of the sheet. A positioning lever is swingably provided to the trailing edge regulation portion to be engaged with a rack tooth row provided on the cassette body. The trailing edge regulation portion is held by the positioning lever at a regulation position according to the sheet. When a force in a sliding direction is applied to the trailing edge regulation portion, the trailing edge regulation portion is moved to be brought into pressure contact with the positioning lever, thereby regulating movement in an engagement releasing direction of the positioning lever engaged with the rack tooth row.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: March 6, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kunihiko Kitayama
  • Patent number: 8123211
    Abstract: A pressing projection of a paper feeding cassette presses a push-back mechanism to thereby release urging of a cam gear in a direction opposite to a direction of the paper feeding cassette. The cam gear moves in the direction of the paper feeding cassette. A cam of the cam gear rotates a rotation lever. The rotation lever rotates a pickup roller lifting and lowering shaft. The pickup roller lifting and lowering shaft lowers a pickup roller.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: February 28, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Koichi Akiyama, Wataru Ikeda
  • Patent number: 8118296
    Abstract: An open/close mechanism can be used for paper trays of an image forming apparatus. The open/close mechanism includes a plate member provided on a side of a housing of the image forming apparatus and configured to pivot upon an axis between an open position and a close position, and a box member that is arranged in the housing beneath the plate member and that can be drawn out of the housing from the side. The open/close mechanism includes also includes a restricting unit that is coupled to the plate member and that abuts against the box member when the box member is set in the housing and when the plate member is in the open position thereby restricting detachment of the box member from the housing.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: February 21, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshikane Nishii, Kazuhiro Wakamatsu, Yasuhide Ohkubo, Ippei Kimura, Mizuna Tanaka, Haruyuki Honda, Masafumi Takahira, Hiroshi Fujiwara
  • Patent number: 8113506
    Abstract: A sheet supply apparatus is provided with a print medium storage device for storing a print medium. The print medium storage device includes a guide member for guiding the print medium thus stored; an engaging portion for engaging the guide member at a specific position; an engaged portion for engaging the engaging portion; an operation portion disposed to be movable for separating the engaging portion from the engaged portion; and an abutting portion for abutting against the operation portion to move the operation portion when the print medium storage device is situated at a first position, and for separating from the operation portion when the print medium storage device is situated at a second position.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: February 14, 2012
    Assignee: Oki Data Corporation
    Inventor: Shinya Kaseda
  • Patent number: 8070153
    Abstract: An image forming apparatus and a printing medium feeding unit thereof are disclosed. The image forming apparatus includes a main body, a cassette removably mounted in the main body to load a printing medium therein, and a sensing unit provided in the main body to sense whether the cassette is mounted in the main body and whether the printing medium is in the cassette. The sensing unit includes a first actuator mounted in the main body to sense whether the printing medium is in the cassette, a second actuator mounted in the main body to sense whether the cassette is mounted in the main body, and a sensor having a sensing part to sense operation of the first actuator and the second actuator. Accordingly, the image forming apparatus can sense whether the cassette is properly mounted in the main body and whether the printing medium is in the cassette, with a simple constitution while minimizing the number of sensors.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: December 6, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Il Kwon Kang
  • Publication number: 20110291351
    Abstract: A medium stack tray comprises a stacking member that stacks a sheet medium and is configured to be wound in a roll, a winding mechanism that winds the stacking member, a regulating mechanism that regulates the stacking member being pulled out to be wound by the winding mechanism, and a releasing mechanism that releases regulation for winding the stacking member by the regulating mechanism. In the stacking member being pulled out, at least a portion of a cross section thereof, in a perpendicular direction to a pull-out direction of the stacking member, has a curved shape. Alternatively, the stacking member is configured to have greater minimum area moment of inertia of a cross section when pulled out, than when wound up.
    Type: Application
    Filed: April 6, 2011
    Publication date: December 1, 2011
    Inventors: Masanari TAKABATAKE, Mieko Sakurai
  • Patent number: 8061707
    Abstract: A paper supply apparatus for conveying paper to an image forming apparatus has a paper accommodating unit to accommodate paper and to be drawn out from an accommodating space in a main body of the image forming apparatus. The apparatus also has a handle to rotate about an axis extending in the width direction of the paper in the paper accommodating unit. The handle includes a first edge that moves toward the paper accommodating unit upon rotation of the handle and a second edge that opposes the first edge. A link on the first edge of the handle releases engagement with the main body when the first edge moves toward the paper accommodating unit. A flapper is disposed on the second edge of the handle and forms a point where a force acts to move the first edge toward the paper accommodating unit.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: November 22, 2011
    Assignee: Kyocera Mita Corporation
    Inventor: Yoshio Sugishima
  • Patent number: 8002485
    Abstract: A guide apparatus for mounting and dismounting an inner part usable in an image forming device includes: a first and a second sliders formed at both sides of a built-in part respectively; a first and a second undercut preventing parts formed at a first and a second side walls of the frame facing the both sides of the inner part under the connecting member, respectively; and a first and a second guide rails integrally formed with the first and the second side walls adjacent to the first and the second undercut preventing parts, respectively, and housing and guiding the first and the second sliders. Accordingly, the first and the second guide rails are integrally formed with the first and the second side walls of the frame, respectively, so that manufacturing is simpler, manufacturing costs and inferiority are reduced, and the intensity is increased.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: August 23, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Tae-won Eom
  • Patent number: 7971868
    Abstract: A sheet feeding apparatus includes a middle plate, a lifter mechanism, and a sheet-feed roller. The sheet-feed roller can move to a first position retracted from the sheet, a second position lower than the first position for feeding the sheet, and a third position lower than the second position. The sheet feeding apparatus has a position control mode in which when a sheet is fed, the sheet-feed roller is moved from the first position to the third position and stopped there, the middle plate is moved toward the sheet-feed roller by the lifter mechanism, the sheet stacked on the middle plate is brought into abutment against the sheet-feed roller, the middle plate is moved until a position detection sensor outputs the detection signal that the sheet-feed roller is in the second position, and a height of the sheet is controlled.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: July 5, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Matsushima, Minoru Kawanishi, Yasuhiro Uchida, Eiji Wakiyama
  • Publication number: 20110133391
    Abstract: A paper feeding apparatus which can certainly detect the position of a pickup roller, and an image forming apparatus including the paper feeding apparatus are provided. The paper feeding apparatus feeds a sheet stacked on a paper feed cassette by the pickup roller, and includes a sensor and the pickup roller rotatably supported by a support shaft and including a detection object part in which a first detection object part having a first length in a movement direction of movement around the support shaft and detected as a first detection state by the sensor, a second detection object part having a second length different from the first length in the movement direction and detected as the first detection state by the sensor, and a third detection object part formed between the first detection object part and the second detection object part and detected as a second detection state different from the first detection state by the sensor are arranged in the movement direction.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 9, 2011
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Koichi Akiyama
  • Patent number: 7938398
    Abstract: A paper feeding apparatus used in a state where the apparatus accumulates paper sheets for an image forming apparatus to form images thereon and the paper feeding apparatus is attached to a main body of the image forming apparatus, wherein an engaging-holding member is provided for an exterior wall face of the paper feeding apparatus, and the engaging-holding member engages and holds the paper feeding apparatus with an exterior housing of the image forming apparatus so as to enable the paper feeding apparatus to move into/from the exterior housing of the image forming apparatus, is provided for an exterior wall face of the paper feeding apparatus, and wherein the engaging-holding member is provided for a specific one of the exterior wall faces of the paper feeding apparatus corresponding to the moving direction determined according to the specification of the image forming apparatus.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: May 10, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohichi Yamauchi, Nobuo Manabe, Kohichi Nakamura, Shinichi Takeda, Ayumu Oda
  • Patent number: 7931267
    Abstract: A sheet feed device includes a sheet tray and a guide unit. The sheet tray is configured to store a recording medium including a recording sheet. The guide unit is configured to support detachably the sheet tray. The guide unit includes a rotary member that is configured to contact an outer bottom surface of the sheet tray while contacting an outer side surface of the sheet tray, and rotate with mounting and detachment of the sheet tray. An image forming apparatus includes an image bearing member for bearing a latent image on a surface thereof, an exposure unit for exposing the image bearing member to form the latent image, a developing unit for developing the latent image with toner to form a visible image, a transfer unit for transferring the visible image onto the recording medium, and the sheet feed device.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: April 26, 2011
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroshi Kajiyama
  • Publication number: 20110074096
    Abstract: A media handler comprises a pick unit arranged to receive a media cassette defining a stub; a detent mounted on the pick unit and resiliently biased to protrude into a path traversed by the stub until deflected by the stub; and a latch pivotably mounted to the pick unit. The latch defines: (i) a flag portion and (ii) a recess engagable by the stub as the cassette is fully inserted into the pick unit. The latch is moveable between (i) an open position in which the detent prevents the latch from moving and (ii) a closed position in which the detent has been deflected by the stub and the recess engages with the stub. Complete insertion of the cassette causes the stub to deflect the detent out of the path, thereby allowing the latch to pivot from the open to the closed position and the recess to engage with the stub to lock the cassette in position.
    Type: Application
    Filed: September 30, 2009
    Publication date: March 31, 2011
    Inventors: Philip K. Staff, Kevin G. Leeper
  • Patent number: 7881653
    Abstract: An image recording apparatus including: a body; a supply tray attached to the body for putting a recording sheet thereon; a recording mechanism provided in a middle of a feed path defined in the body for recording an image on the recording sheet; a feeding mechanism which has an arm pivotably supported at one of opposite ends thereof and a feeding roller rotatably provided in the other of the opposite ends of the arm, and which is configured such that the recording sheet is fed toward the recording mechanism by rotating of the feeding roller held in contact with the recording sheet; a discharge opening provided in the body for discharging the recording sheet therethrough; a cover supported by the body to be pivotable between an open position and a closed position; and a cover-arm interlock mechanism which permits the arm to pivot such that the feeding roller contacts the recording sheet when the cover is positioned at the open position, and which positions the arm such that the feeding roller is away from the
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: February 1, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Masatoshi Izuchi
  • Patent number: 7878500
    Abstract: A sheet storing device includes a container including a first holding surface configured to hold a first sheet thereon, and a tray positioned at an upper side of the container. The tray includes a second holding surface configured to hold a second sheet thereon. The tray is configured to selectively move between a first position and a second position downstream from the first position in a first direction. The sheet storing device further includes a positioning unit configured to selectively position the tray in one of the first position and the second position, and a linking unit configured to link the tray to the container and to pivot about a particular pivot axis which extends in a second direction perpendicular to the first direction and parallel to the first holding surface of the container. The linking unit pivots to selectively move the tray between the first position and the second position.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: February 1, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Keisuke Wakakusa
  • Patent number: 7866654
    Abstract: A sheet conveying apparatus includes a first storing unit in which a sheet bundle is stacked, a second storing unit that is provided near the first storing unit and in which the sheet bundle is stacked, a transfer tray that is provided in the second storing unit and transfers the sheet bundle from the second storing unit to the first storing unit, and a stopper that regulates, when the transfer tray transfers the stacked sheet bundle from the second storing unit to the first storing unit and moves from the first storing unit to the second storing unit, movement of the sheet bundle on the transfer tray.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: January 11, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Masahiro Ohno
  • Publication number: 20100308529
    Abstract: Apparatuses for feeding sheets and printing apparatuses are provided.
    Type: Application
    Filed: June 4, 2009
    Publication date: December 9, 2010
    Applicant: XEROX CORPORATION
    Inventors: Colin Jon PARTRIDGE, Paul J. NEWLAND
  • Patent number: 7823874
    Abstract: A paper feeder comprising an actuator and a sensor mounted on a main body, the actuator being capable of contacting an upper surface of a sheet placed on a bottom plate provided in a sheet tray as the bottom plate is raised, thereby allowing the sensor to detect that the sheet is present. The paper feeder further comprises a through bore formed in the bottom plate for receiving the actuator when a sheet is absent from the sheet tray, so that the sensor may detect that the sheet is absent, and a push-out guide provided on peripheries of the through bore for contacting the actuator in the through bore as the sheet tray is pulled out, thereby pushing the actuator upward out of the through bore.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: November 2, 2010
    Assignee: Kyocera Mita Corporation
    Inventor: Masami Fuchi
  • Patent number: 7823869
    Abstract: A sheet feeder includes a sheet feed tray on which a first sheet bundle is stacked at a first position where sheet feeding to a conveyance path can be performed, and a conveyance tray on which a second sheet bundle is stacked at a second position adjacent to the sheet feed tray, and which conveys the second sheet bundle to the sheet feed tray and stacks the second sheet bundle on the sheet feed tray after the first sheet bundle is fed, presses the stacked second sheet bundle to a side plate provided in a direction perpendicular to a conveyance direction of the conveyance tray, and aligns an end of the second sheet bundle.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: November 2, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Tokihiko Ise