To Rotary Conveyor Patents (Class 271/4.1)
  • Patent number: 10040650
    Abstract: A sheet feeder includes: a feed roller; a transmission mechanism for transmitting a first drive force to the feed roller to rotate the feed roller in a feeding direction; a motor rotatable in a forward direction and in a reverse direction opposite the forward direction to generate a second drive force; a reverse roller rotatable in the feeding direction and in a counter-feeding direction opposite the feeding direction by the second drive force; and a driven part driven by the second drive force. The transmission mechanism transmits the first drive force to the feed roller to rotate the feed roller in the feeding direction in case that the reverse roller is rotated in the feeding direction; and the transmission mechanism transmits the first drive force to the feed roller to rotate the feed roller in the feeding direction in case that the reverse roller is rotated in the counter-feeding direction.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: August 7, 2018
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yuichiro Kuriki
  • Patent number: 8973913
    Abstract: To easily replace a retard roller (that is a media separation roller) while minimizing the required installation space, a printer 1 has a first media conveyance path 12 that conveys sheet media; a second media conveyance path 29 that conveys media and can open and close; a media conveyance roller 17 and a retard roller 16 disposed opposite each other with the first media conveyance path 12 therebetween; and a roller installation unit 70 to which the retard roller 16 is installed removably from the second media conveyance path 29 side. The retard roller 16 can be easily replaced from the open second media conveyance path 29. Compared with a configuration having a dedicated opening, a smaller opening and space for replacing the media separation roller are required.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: March 10, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Hiroyuki Masubuchi, Toshihiro Imae
  • Patent number: 8894058
    Abstract: A sheet feeder including a sheet container on which sheets are placed, a transfer roller to transfer the sheets to an image forming unit via a transfer path; a friction pad to transfer the sheets together with the transfer roller; and a movable portion provided on the transfer path to alter a direction of the transfer path based on the sheets.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: November 25, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroyuki Seki
  • Patent number: 8840103
    Abstract: A sheet conveying device includes: a separation sheet feeding mechanism having a paper feeding belt and a separation roller; and an adjustment mechanism that changes contact state of the paper feeding belt to the separation roller by changing relative position of the paper feeding belt and the separation roller, and changes and adjusts separation performance of the separation roller for the subsequent sheet, wherein the adjustment mechanism includes a cam follower member changing the relative position of the feeding belt and the separation roller, the cam member includes a first cam face and a second cam face which are formed at each rotation radius position in accordance with the rotation angle position, and are spaced apart in the rotation radius direction, and the cam follower member has a contact unit guided by the first cam face and the second cam face.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: September 23, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Takashi Fukumoto, Mamoru Kambayashi, Michitaka Suzuki, Atsushi Fujita, Masataka Fukuchi, Ryuji Yoshida, Hideki Tobinaga, Norio Kimura, Kenichiro Morita, Koki Sakano, Takuya Sano, Takuya Morinaga, Takashi Nakano
  • Publication number: 20140159299
    Abstract: A sheet feeding apparatus comprising: a storage portion; a feeding portion; and a separation portion, wherein the separation portion includes: a separation member which rotates around a rotation center shaft to separate one by one the sheets; an urging portion which applies a force to the rotation center shaft toward the feeding portion; a torque imparting portion to impart a torque to the separation member in a direction opposite to a direction which the separation member rotates; a first and a second support member which supports one end and other end of the rotation center shaft while regulating rotation of the rotation center shaft; and a deviation restraining portion which restrains deviation of a reaction force of the torque applied to the separation member by the torque imparting portion and acting on the first support member and the second support member.
    Type: Application
    Filed: October 16, 2013
    Publication date: June 12, 2014
    Applicant: Canon Kabushiki Kaisha
    Inventor: Takashi Yano
  • Patent number: 8730540
    Abstract: A sheet transport apparatus that transports a sheet to a reading section for reading the sheet, has a reading front roller pair contacting with a front end of the sheet to form a register loop in the sheet; a first transport path extending curvingly toward the reading front roller pair; a second transport path extending curvingly toward the reading front roller pair after joining the first transport path; a first register space in which a register loop is formed in a sheet guided along the first transport path; and a second register space in which a register loop is formed in a sheet guided along the second transport path. The first register space is provided on the upstream side of a junction position in which the first transport path joins the second transport path, and the second register space is provided on the downstream side of the junction position.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: May 20, 2014
    Assignee: Nisca Corporation
    Inventors: Mamoru Akiyama, Seiji Nishizawa, Toshiya Sato, Koji Kanda, Tetsuya Noda, Toshiyuki Ito
  • Publication number: 20140092188
    Abstract: A sheet feeder, including: a sheet supply roller configured to supply a sheet to a sheet feeding path; a sheet feed roller configured to feed the sheet supplied to the sheet feeding path by the sheet supply roller to a downstream side in a sheet feeding direction in which the sheet is fed; a discharge roller configured to discharge the sheet fed by the feed roller to a downstream side in the sheet feeding direction; a drive motor configured to drive a first shaft for rotating the feed roller; a first transmitting mechanism configured to transmit a rotary motion of the first shaft to a second shaft for rotating the discharge roller; and a second transmitting mechanism configured to transmit a rotary motion of the second shaft to a third shaft for rotating the sheet supply roller.
    Type: Application
    Filed: September 25, 2013
    Publication date: April 3, 2014
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Yasuhira Ota, Iwane Sano, Masao Mimoto, Shingo Ito
  • Publication number: 20140070477
    Abstract: A document feeder includes a reverse transporting mechanism that forms a substantially U-shaped document transporting pathway for carrying a document from a feeding tray located at a lower side to a discharging tray located at an upper side through a reading position, a pulling device, a separating-transporting device and a openable pathway cover. The pulling device and the separating-transporting device are arranged at substantially the same horizontal level within the height that is occupied by the reverse transporting mechanism. The pathway cover is capable of opening and closing to cover on the pulling device, the separating-transporting device and the reverse transporting mechanism.
    Type: Application
    Filed: November 18, 2013
    Publication date: March 13, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Takashi OHAMA, Yoshinori OSAKABE, Toshitaka IWAGO
  • Patent number: 8662492
    Abstract: A multi-function peripheral having an automatic document feeding device (ADF) suited for being configured in a body of an apparatus is provided. The apparatus has a first and second power sources to drive the ADF to transmit a paper in or out of the body. The ADF includes a limiting structure, a swinging member and a blocking member. The first and second power sources drive the limiting structure and the swinging member to swing respectively. The blocking member has a first end connected to the swinging member and a second end extending toward the limiting structure. When the limiting structure is at a second position and the swinging member swings toward a third position, the second end is trapped into the limiting space. When the limiting structure moves toward a first position and the swinging member swings toward the third position, the second end escapes from the limiting space.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: March 4, 2014
    Assignees: Cal-Comp Electronics & Communications Company Limited, Kinpo Electronics, Inc.
    Inventor: Chung-Liang Huang
  • Patent number: 8662491
    Abstract: A multi-function peripheral having an automatic document feeding device (ADF) suited for being configured in a body of an apparatus is provided. The apparatus has a first and second power sources to drive the ADF to transmit a paper in or out of the body. The ADF includes a limiting structure, a swinging member and a blocking member. The first and second power sources drive the limiting structure and the swinging member to swing respectively. The blocking member has a first end connected to the swinging member and a second end extending toward the limiting structure. When the limiting structure is at a second position and the swinging member swings toward a third position, the second end is trapped into the limiting space. When the limiting structure moves toward a first position and the swinging member swings toward the third position, the second end escapes from the limiting space.
    Type: Grant
    Filed: August 18, 2013
    Date of Patent: March 4, 2014
    Assignees: Cal-Comp Electronics & Communications Company Limited, Kinpo Electronics, Inc.
    Inventor: Chung-Liang Huang
  • Patent number: 8646904
    Abstract: A sheet feeding device, including: a sheet cassette configured to accommodate sheets; a conveyance path through which each of the sheets accommodated in the sheet cassette is conveyed; a rotation roller provided at one of a start point and a vicinity thereof in the conveyance path; a motor configured to rotatably drive the rotation roller; a pressure body configured to come into pressing contact with the rotation roller via the sheet; and a moving mechanism configured to separate the rotation roller and the pressure body, which are in pressing contact with each other, away from each other in dependence on drive stop of the motor.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: February 11, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yuji Sakano
  • Patent number: 8596636
    Abstract: A sheet feeding unit having a holding section; a separation pad that contacts a sheet and imparts a conveyance resistance to the sheet; a separation roller that imparts a conveyance force to the sheet; a drive source that supplies driving force to the separation roller; a conveyance roller disposed at a position downstream of the separation roller, wherein the conveyance roller rotates at a circumferential speed greater than a circumferential speed of the separation roller, to impart conveyance force to the sheet, and wherein the conveyance roller and the separation roller are disposed so as to simultaneously contact the same sheet; and a drive shutoff unit, which shuts off the driving force supplied to the separation roller when the conveyance roller imparts the conveyance force to the sheet so the separation roller rotates in a following manner with the conveyance of the sheet.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: December 3, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Ichikawa, Akira Terao
  • Patent number: 8579276
    Abstract: A multi-function peripheral having an automatic document feeding device (ADF) suited for being configured in a body of an apparatus is provided. The apparatus has a first and second power sources to drive the ADF to transmit a paper in or out of the body. The ADF includes a limiting structure, a swinging member and a blocking member. The first and second power sources drive the limiting structure and the swinging member to swing respectively. The blocking member has a first end connected to the swinging member and a second end extending toward the limiting structure. When the limiting structure is at a second position and the swinging member swings toward a third position, the second end is trapped into the limiting space. When the limiting structure moves toward a first position and the swinging member swings toward the third position, the second end escapes from the limiting space.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 12, 2013
    Assignees: Cal-Comp Electronics & Communications Company Limited, Kinpo Electronics, Inc.
    Inventor: Chung-Liang Huang
  • Publication number: 20130256971
    Abstract: An image forming apparatus includes a main body, a recording sheet receiving portion configured to receive a recording sheet, an image forming portion configured to form an image on the recording sheet, a particular feed roller configured to feed the recording sheet toward the image forming portion, and a holding frame configured to rotatably support the particular feed roller such that the particular feed roller is exposed toward the recording sheet receiving portion. The holding frame has a roller receiving portion configured to receive the particular feed roller therein and a replacement opening for exposing the particular feed roller toward an opposite side of the holding frame relative to the recording sheet receiving portion. The particular feed roller is configured to be attached to and removed from the holding frame via the replacement opening on the opposite side of the holding frame relative to the recording sheet receiving portion.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 3, 2013
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Junki . Ueyama, Yoshikazu Shimizu
  • Publication number: 20130208326
    Abstract: An auto document feeder includes a lead path, a first reverse path, a second reverse path, and a both surfaces eject path. The lead path guides a document from a left side to a right side of a read position. The first and second reverse paths are connected to the lead path, and reverse the document to guide the document from the right side to the left side of the read position. A both surfaces eject path is connected to the first and second reverse paths and guides the document whose image information of a second surface has been read to eject further to the right side than the read position. A shared curve path shared by the lead path and the both surfaces eject path includes a portion between the read position and a portion in which a lead curve path protrudes the most.
    Type: Application
    Filed: August 16, 2012
    Publication date: August 15, 2013
    Applicant: MURATA MACHINERY, LTD.
    Inventors: Yoshitaka NOSE, Toshihiro KAWAMURA
  • Patent number: 8482789
    Abstract: An image reading apparatus includes a feeder, a first reading unit, a first memory which stores image data of the surface of the document read by the first reading unit, a second reading unit located at an upstream side of the first reading position, a second memory which stores image data of the document read by the second reading unit and a controller configured to control the feeder, the first reading unit and the second reading unit. The controller controls to execute pre-scanning the document by the second reading unit over a predetermined range shorter than a separation distance between the first reading position and the second reading position in a transporting direction from a leading edge of the document when the document reaches the second reading position. The controller further controls to execute storing obtained pre-scanned image data into the second memory and measuring the size of the document based on the pre-scanned image data stored in the second memory.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: July 9, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Masayoshi Oosaki
  • Patent number: 8480071
    Abstract: A recording device that includes a feed roller for feeding a first and a second sheets sequentially, a first and a second conveying devices that convey the sheets in synchronization, a recording device that records image on the sheets, and a controller, that, after image recording on the first sheet is complete, stops the first and second conveying devices when a trailing end of the first sheet reaches a particular position between the first and the second conveying devices. The controller further controls the feed roller to feed the second sheet, such that a leading end of the second sheet contacts a nip of the first conveying device. After the leading end of the second sheet contacts the nip, the controller rotates the first conveying device in a reverse direction.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: July 9, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tetsuo Asada, Hirotaka Aoki, Yasuhira Ota, Shingo Ito
  • Patent number: 8477392
    Abstract: A aspect of the invention is an image scanning apparatus including: a document feeder configured to sequentially feed document sheets stacked in the document feeder; an image scanning unit configured to scan the document sheets fed by the document feeder and to output image data thereof; a memory configured to store therein the image data; a detector configured to detect a failure of feeding the document sheets by the document feeder; a notifier configured to report the feeding failure when the detector detects the feeding failure; and a display unit configured to display the image data stored in the memory, upon detection of the feeding failure.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: July 2, 2013
    Assignee: Oki Data Corporation
    Inventor: Yukihiro Saida
  • Patent number: 8444134
    Abstract: An automatic document feeding device (ADF) suited for being configured in a body of an apparatus is provided. The apparatus has a first and second power sources to drive the ADF to transmit a paper in or out of the body. The ADF includes a limiting structure with a limiting space, a swinging member and a blocking member. The first and second power sources drive the limiting structure and the swinging member to swing respectively. The blocking member has a first end connected to the swinging member and a second end extending toward the limiting structure. When the limiting structure is at a second position and the swinging member swings toward a third position, the second end is trapped into the limiting space. When the limiting structure moves toward a first position and the swinging member swings toward the third position, the second end escapes from the limiting space.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: May 21, 2013
    Assignees: Cal-Comp Electronics & Communications Company Limited, Kinpo Electronics, Inc.
    Inventor: Chung-Liang Huang
  • Patent number: 8376349
    Abstract: A document feeder includes a document placing portion, a pick-up roller, a pair of feed rollers, a pair of registration rollers, a document sensor, a moving mechanism, and a control portion. The pick-up roller can move between a sheet feeding position where the pick-up roller contacts with the upper surface of the document placed on a placement surface and a standby position where the pick-up roller does not contact with the upper surface of the document placed on the placement surface. The document sensor detects a document between the feed rollers and the registration rollers in a document feed direction. The moving mechanism moves the pick-up roller up and down. The control portion moves the pick-up roller up to the standby position at a timing when the leading edge of the card document reaches the document sensor in a card document mode in which card documents are successively fed.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: February 19, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasumasa Morimoto, Hiroshi Nakatani, Masato Tamehira, Sohichi Takata
  • Patent number: 8277016
    Abstract: A medium transporting apparatus has a first transport path that reverses the sides of the medium when guiding the medium, wherein the first transport path is installed so as to be connected to the middle of a second transport path between a mounting portion and a recording portion; a first mode in which after there has been recording on a first surface of a preceding medium, a second roller installed on the mounting portion transports a succeeding medium to the recording portion side while guiding it to the second transport path.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: October 2, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Ryuji Moriyama, Yuichi Aruga
  • Patent number: 8240655
    Abstract: An image recording apparatus includes a recording unit configured to record an image on a sheet, a tray on which the sheet is placed, a first roller configured to feed the sheet placed on the tray, a first guide member configured to guide the sheet fed from the first roller to the recording unit, a second guide member configured to guide the sheet passed through the recording unit, a second roller configured to feed the sheet guided by the second guide member, a third guide member configured to guide the sheet fed from the second roller to the recording unit, a common roller configured to transmit a rotation force to the first roller and the second roller, and a second-roller arm including the second roller at a distal end thereof and configured to be pivotable about an axis.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: August 14, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kenji Samoto, Yuji Koga
  • Publication number: 20120154471
    Abstract: A method/printer prints images on an “A” side of a first sheet of media and on an “A” side of a second sheet of media in a single full transfer rotation of a drum. The method then prints images on the B side of the first sheet and on an A side of a third sheet in a single full transfer rotation of the drum. Similarly, the method prints images on the B side of the second sheet and on an A side of a fourth sheet in a single full transfer rotation of the drum. This method then prints images on the B side of the third sheet and the B side of the fourth sheet in a single full transfer rotation of the drum.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 21, 2012
    Applicant: XEROX CORPORATION
    Inventors: Zhikui Ren, Daniel Clark Park
  • Patent number: 8154770
    Abstract: An image forming apparatus that includes an image reading part to read an image of an original, an image recording part to record the image read by the image reading part on a sheet, a sheet discharge part to discharge the sheet recorded by the image recording part from front to rear of a main body of the image forming apparatus, a sheet stack part to stack the sheet discharged by the sheet discharge part between the image reading part and the image recording part, first and second supporters provided outside the sheet stack part along a discharge direction of the sheet to form a space between the sheet stack part and the image reading part, and a lock mechanism to lock the image reading part. The image reading part slides relative to the first and second supporters in the discharge direction.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: April 10, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Takamasa Shiraki, Takayuki Andoh, Takuji Takahashi, Yoshihide Ohta, Kohji Hatayama, Takashi Yokota
  • Publication number: 20120074637
    Abstract: An image recording apparatus including: (a) a recording portion for recording image on a top face of a sheet; (b) a supplying roller which is to be in contact with a bottom face of the sheet held in a tray and which is configured to supply the sheet toward a curved conveyance path; (c) a drive roller which is to be in contact with the top face of the sheet and which is configured to convey the sheet supplied from the supplying roller; and (d) a controlling portion which is configured, upon receipt of a command requesting start of conveyance of the sheet, to cause the supplying roller to be rotated without causing the drive roller to be rotated, and is configured, upon judgment that a leading end portion of the sheet has reached a flat surface extending away from the drive roller toward the recording portion, to cause the drive roller to be rotated.
    Type: Application
    Filed: March 30, 2011
    Publication date: March 29, 2012
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Yuta UCHINO
  • Publication number: 20120068398
    Abstract: According to one embodiment, a sheet handling apparatus includes a conveying path to convey a sheet, a processing portion to perform a predetermined process on the sheet while conveying the sheet on the conveying path, a separable roller pair that is arranged at a certain distance from the processing portion on an upstream side or a downstream side in conveying direction, the separable roller pair being adapted to hand over the sheet between the conveying path and the processing portion by holding the sheet with a nip and rotating, a separating mechanism to separate the separable roller pair, and a controller that controls the separating mechanism such that the separable roller pair is separated before or after processing is started with the processing portion on a sheet that is conveyed on the conveying path.
    Type: Application
    Filed: September 2, 2011
    Publication date: March 22, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yukio ASARI, Toru Todoriki, Yusuke Mitsuya, Yoshihiko Naruoka, Naruaki Hiramitsu
  • Patent number: 8134758
    Abstract: An image reading apparatus reads an image of a document. An image reading section reads an image of a document. A scanning mechanism causes the image reading section to move relative to the document when the document is at rest. When the image reading section is at rest, a document feeding mechanism causes the document to move relative to the image reading section. A shutter moves to a first position where the shutter opens, allowing the image reading section to read the image of the document when the document moves relative to the image reading section at rest. The shutter moves to a second position where the shutter closes, allowing the image reading section to read the image of the document when the image reading section moves relative to the document at rest.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: March 13, 2012
    Assignee: Oki Data Corporation
    Inventors: Yoshiaki Nakaishi, Hidenori Ueda
  • Publication number: 20120051818
    Abstract: An image processing device, comprising a supplying path; a re-carrying path; and a supply and separation mechanism to carry and separate a sheet-like medium, and wherein the supply and separation mechanism comprises: a sending roller; an independent roller and a retard roller, and the sending roller includes an arc part and a recess formed inside of a trace of an outer circumferential surface of the arc part, the independent roller is able to rotate independently of the sending roller, the retard roller, by stopping or rotating in an inverse direction of a supplying direction, causes a frictional resistance with respect to the sheet-like medium being sent out by the arc part to separate the sheet-like medium one by one, and the image processing device further comprises: a control unit configured to cause the retard roller to rotate in the supplying direction when re-supplying is executed.
    Type: Application
    Filed: March 30, 2011
    Publication date: March 1, 2012
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Takuya YAMAGUCHI, Yoshiteru HATTORI
  • Patent number: 8089666
    Abstract: An image forming apparatus includes an upper cover attached to a main body, an image forming part provided in the main body and configured to record an image on a sheet, an image reading part having a document press member, and a lock mechanism. The upper cover is configured to be pivotable on a support axis with respect to the main body. The image reading part is slidably mounted on the upper cover. The document press member is configured to open and close with respect to a housing of the image reading part in a direction similar to a direction in which the upper cover opens and closes. The lock mechanism is configured to prevent the document press member from opening over a slidable range of the image reading part when the upper cover is opened.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: January 3, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Takayuki Andoh, Takuji Takahashi, Takamasa Shiraki, Shigeo Nanno, Yoshihide Ohta, Kohji Hatayama
  • Publication number: 20110309566
    Abstract: A paper sheet stacking apparatus includes: a feeding unit 26 configured to feed in paper sheets one by one from outside; a rotary body 10 including a holding member 16 for holding the paper sheet fed in by the feeding unit 26, the rotary body 10 being configured to be rotated with the paper sheet being held by the holding member 16, so as to transport the paper sheet along a rotational direction of the rotary body 10; and a stacking unit 32 on which the paper sheets transported by the rotary body 10 are stacked on one another.
    Type: Application
    Filed: February 26, 2010
    Publication date: December 22, 2011
    Inventors: Tetsuya Taniguchi, Kaname Kotani
  • Publication number: 20110309565
    Abstract: A sheet medium processing device comprises a housing, a feeding mechanism (1) mounted on the housing, a stacking mechanism (2) and a switching mechanism (3). The stacking mechanism (2), which is located downstream of the feeding mechanism (1), comprises an upper channel (20), a lower channel (21) and a channel driving mechanism (22). The lower channel is fixedly connected with the housing, and the upper channel is hinged with the housing with one end thereof separatable from or contactable with the lower channel. The channel driving mechanism is used to drive the upper and lower channels to move synchronously to transport sheet mediums. The switching mechanism (3) comprises a first cam (30) and a cam driving mechanism (31), wherein the cam is joined with the upper channel to drive the upper channel to rotate.
    Type: Application
    Filed: February 9, 2010
    Publication date: December 22, 2011
    Inventors: Qiangzi Cong, Ming Gao, Tao Gao, Tianxin Jiang, Kai Liu
  • Publication number: 20110267412
    Abstract: A sheet feeding device, including: a sheet cassette configured to accommodate sheets; a conveyance path through which each of the sheets accommodated in the sheet cassette is conveyed; a rotation roller provided at one of a start point and a vicinity thereof in the conveyance path; a motor configured to rotatably drive the rotation roller; a pressure body configured to come into pressing contact with the rotation roller via the sheet; and a moving mechanism configured to separate the rotation roller and the pressure body, which are in pressing contact with each other, away from each other in dependence on drive stop of the motor.
    Type: Application
    Filed: March 30, 2011
    Publication date: November 3, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Yuji SAKANO
  • Publication number: 20110254216
    Abstract: An auto document feeder includes a lead path, a first reverse path, a second reverse path, and a both surfaces eject path. The lead path guides a document from a left side to a right side of a read position. The first reverse path and the second reverse path are connected to the lead path, and reverse the document to guide the document from the right side to the left side of the read position. A both surfaces eject path is connected to the first reverse path and the second reverse path and guides the document whose image information of a second surface has been read so as to eject further to the right side than the read position. Further, the lead path includes a lead curve path which protrudes to the left side and is arranged more to the left side than the read position. A shared curve path shared by the lead path and the both surfaces eject path includes a portion between the read position and a portion in which the lead curve path protrudes the most.
    Type: Application
    Filed: April 4, 2011
    Publication date: October 20, 2011
    Applicant: MURATA MACHINERY, LTD.
    Inventors: Yoshitaka NOSE, Toshihiro KAWAMURA
  • Publication number: 20110241275
    Abstract: In a paper-sheet post-processing device, a paper-sheet aligning unit has: a main unit; a paper-sheet holding part which holds paper-sheets supported on a paper-sheet supporting unit; a cam mechanism which places the paper-sheet pressing part close to and separate from the paper-sheet supporting unit; and an aligning mechanism which aligns the paper-sheets supported on the paper-sheet supporting unit with a standard position by rotation of the aligning member; and the main unit has a rotation shaft rotatably supported axially by a first support part and a second support part and the cam member and aligning member are arranged to be fixed to the rotation shaft.
    Type: Application
    Filed: March 29, 2011
    Publication date: October 6, 2011
    Applicant: KYOCERA MITA CORPORATION
    Inventor: Takeshi MATSUO
  • Publication number: 20110227272
    Abstract: An image forming apparatus has a main body for performing an image forming process on a sheet. An internal discharge stores a sheet after the image forming process and a discharge opening discharges a sheet to the internal discharge. A post-processing unit can be attached to the apparatus main body to apply a specified post processing to a received sheet. A junction can be assembled into the internal discharge to convey a sheet from the discharge opening to a receiving opening of the post-processing unit. The junction includes a first guide having a first guide surface for guiding a sheet, a second guide having a second guide surface facing the first guide at a predetermined distance and a support for supporting the second guide by a rotatable supporting portion. The support has a facing surface facing the first guide surface and has the supporting portion arranged on the facing surface.
    Type: Application
    Filed: March 9, 2011
    Publication date: September 22, 2011
    Applicant: KYOCERA MITA CORPORATION
    Inventor: Shinichi Kotera
  • Patent number: 7982923
    Abstract: An image forming apparatus that includes an image reading part, an image forming part to form an image on a sheet, a sheet discharge part to discharge the sheet from front to rear of the image forming apparatus, a sheet stack part to stack the sheet between the image reading part and the image forming part, a supporter provided outside the sheet stack part along a discharge direction of the sheet to form a space between the sheet stack part and the image reading part, a connector to electrically connect the image forming part with the image reading part, a bending unit provided between the image reading part and the supporter to bend back the connector in a sliding direction of the image reading part, and a bend limiter provided at a rear position of the image reading part in the sliding direction to limit bending of the connector.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: July 19, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Takayuki Andoh, Takuji Takahashi, Takamasa Shiraki, Shigeo Nanno, Yoshihide Ohta, Kohji Hatayama
  • Publication number: 20110156337
    Abstract: An automatic document feeder includes a sheet input tray, a transfer channel, a sheet pick-up module, a retard roller, a thickness detecting module and a controlling unit. When the sheet pick-up module is driven, the documents placed on the sheet input tray are fed into the transfer channel. The thickness detecting module is used for detecting a thickness of the documents. The controlling unit is used for judging whether a multiple-feeding event occurs. In a case that the multiple-feeding event occurs, the sheet pick-up module is reversely rotated such that the documents are returned to the sheet input tray. When the sheet pick-up module is reversely rotated, the retard roller provides a lower frictional force, so that the documents are allowed to be returned to the sheet input tray.
    Type: Application
    Filed: April 2, 2010
    Publication date: June 30, 2011
    Applicant: PRIMAX ELECTRONICS LTD.
    Inventors: Yung-Tai Pan, Chien-Kuo Kuan, Yi-Liang Chen, Ping-Hung Kuo
  • Publication number: 20110074089
    Abstract: A media transport element comprises: a fixed roller, a first coupling connected an end of the fixed roller for receiving rotational motion therefrom, a second coupling connected to the first coupling for receiving rotational motion therefrom, and being rotatable about a pivot axis; and a pivoting roller mounted in registration with the fixed roller. The fixed roller and the pivoting roller define a media passage therebetween. The media transport element also comprises: a link coupled to the pivoting roller and mounted on a link shaft co-axial with the pivot axis. The fixed roller and the pivoting roller are both continuously driven even when media items pass through the media passage and move the pivoting roller away from the fixed roller.
    Type: Application
    Filed: September 30, 2009
    Publication date: March 31, 2011
    Inventor: Scott H. Deas
  • Patent number: 7900907
    Abstract: A media processing device can convey checks at a constant speed passed an information reading position without slipping and without increasing the relay capacity of the transportation roller. The check processing device 1 has two transportation rollers 31 and 32 between the scanning position 52A of the contact image scanner 52 and the separation roller 17 and retard roller 18 that produce a transportation load or transportation load variation. The upstream-side transportation roller 31 turns faster than the downstream transportation roller 32 so that the checks 4 are fed with slack between these transportation rollers 31 and 32. Because of this slack in the part 402 of the check 4 between the transportation rollers 31 and 32, the transportation load from the separation mechanism does not act on the downstream transportation roller 32.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: March 8, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Hideki Furihata, Toshiyuki Sasaki
  • Publication number: 20110006469
    Abstract: When a retard roller is rotating in a sheet feeding direction, the rotation is transmitted to a pickup roller and the pickup roller rotates in a direction for conveying the sheet. When the retard roller is rotating in a direction opposite to the sheet feeding direction or is stationary, the pickup roller does not feed the sheet. Therefore, in a successive feeding operation, the sheet to be fed next is always conveyed such that the leading end thereof reaches a nip position between a feed roller and the retard roller. Therefore, the intervals between the sheets are uniform in the successive feeding operation.
    Type: Application
    Filed: July 12, 2010
    Publication date: January 13, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akira Matsushima, Yasuhiro Uchida, Shunsuke Okazaki, Minoru Kawanishi, Kenji Watanabe, Motohiro Furusawa
  • Patent number: 7862030
    Abstract: A first guide member includes a concave-shaped guide surface. A recording medium such as a sheet fed by register rollers takes a curved position while being fed in a sheet feeding direction such that the leading edge of the sheet slides on the guide surface. A space is defined between the sheet and the guide surface due to the stiffness of the sheet. Thus, the sheet smoothly curves. When a speed of conveying the sheet by the register rollers is faster than a speed of conveying the sheet by a conveying belt, slack in the sheet is allowed in the space defined between the sheet and the guide surface. Therefore, the sheet can be stably conveyed without applying excessive load to the sheet or a sheet conveying device.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: January 4, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiroshi Igarashi
  • Publication number: 20100327512
    Abstract: A paper feeding apparatus capable of preventing noises generated when picking up and transferring paper, and an image forming apparatus having the same. The paper feeding apparatus according to the present invention comprises a pickup unit, which is disposed upstream of a paper cassette relative to the direction in which the uppermost sheet of paper loaded in the paper cassette moves, to pick up the uppermost sheet of paper, and a lifting unit which lifts the sheet of paper vertically to reduce friction between the paper and the paper beneath it when the pickup unit picks up the sheets of paper.
    Type: Application
    Filed: September 3, 2010
    Publication date: December 30, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jong-woo Kim, Hyun-ki Cho
  • Publication number: 20100302298
    Abstract: A medium transporting apparatus has a first transport path that reverses the sides of the medium when guiding the medium, wherein the first transport path is installed so as to be connected to the middle of a second transport path between a mounting portion and a recording portion; a first mode in which after there has been recording on a first surface of a preceding medium, a second roller installed on the mounting portion transports a succeeding medium to the recording portion side while guiding it to the second transport path.
    Type: Application
    Filed: May 24, 2010
    Publication date: December 2, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Ryuji MORIYAMA, Yuichi ARUGA
  • Publication number: 20100276865
    Abstract: A solenoid valve and an automatic document feeder using the solenoid valve are provided. The solenoid valve includes a valve body, a valve spindle, a spring, a ring-shaped groove and muffling ring. The ring-shaped groove is sheathed around the valve spindle. The muffling ring is disposed within the ring-shaped groove. When the valve body is magnetized to magnetically attract the valve spindle, the valve spindle is moved within the valve body, and the muffling ring collides with the recess inner wall, thereby reducing collision noise.
    Type: Application
    Filed: June 12, 2009
    Publication date: November 4, 2010
    Applicant: PRIMAX ELECTRONICS LTD.
    Inventors: Chung-Kai Wang, Wen-An Huang, Chao-Min Yang, Wei-Hsun Hsu
  • Publication number: 20100252988
    Abstract: An automatic document conveyance device, include a paper guide which has a slot formed by cutting off a part of a conveyance surface for guiding a document; a conveyance unit which inserts in and detach from the slot; wherein the conveyance unit further comprising: a motor which generates driving force; a motor holding part which holds the motor; a driving roller which conveys a document; a drive transmission mechanism which transmits the driving force generated by the motor to the driving roller via a driving roller shaft; and a fitting part which fits the conveyance unit into the slot so that one surface of the conveyance unit forms the conveyance face.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 7, 2010
    Applicants: NEC Access Technica, Ltd., NEC Engineering Ltd.
    Inventors: Noriyuki HAGIYAMA, Hiroyuki OKADA
  • Publication number: 20100247178
    Abstract: A sheet feeding device includes a first conveying roller conveying the sheet, a second conveying roller conveying the sheet conveyed from the first conveying roller, a first driving gear having a first number of teeth, and a second driving gear having a second number of teeth. When a first meshing frequency defined by multiplication of the first number of teeth and the number of rotations of the first driving gear is defined as A, and a second meshing frequency defined by multiplication of the second number of teeth and the number of rotations of the second driving gear is defined as B, the first meshing frequency A and the second meshing frequency B are set so as to satisfy the following expression (1): A>B??(1).
    Type: Application
    Filed: March 19, 2010
    Publication date: September 30, 2010
    Applicant: KYOCERA MITA CORPORATION
    Inventor: Hideaki Doyou
  • Publication number: 20100225977
    Abstract: A sheet feeding unit has a main body, a sheet stack portion attached to the main body to accommodate a stack of sheets, a sheet feeding device disposed substantially above the sheet stack portion to feed the sheet onward, movable between a sheet feeding position at which the sheet feeding device contacts the sheet and feeds the sheet onward and a separating position at which the sheet feeding device separates from the sheet and does not feed the sheet onward, a separation unit to separate the sheets, a restriction member disposed between the sheet feeding device and the separation unit and switchable between a sheet feeding state when the sheet feeding device is at the sheet feeding position and a sheet restriction state when the sheet feeding device is at the separation position, and a cover openably closable relative to the main body and constituted as an independent member.
    Type: Application
    Filed: March 5, 2010
    Publication date: September 9, 2010
    Inventors: Yohei Osanai, Kohji Hatayama, Takayuki Andoh
  • Publication number: 20100213661
    Abstract: Provided is a diverter 15 capable of diverting banknotes in multiple directions and performing high-speed diversion of banknotes. A diversion member 21 rotationally moves to at least three stopping positions including a first stopping position connecting a first transport path 11 and a second transport path 12 to form a first transport passage, a second stopping position connecting the first transport path 11 and a third transport path 13 to form a second transport passage and a third stopping position connecting transport paths other than the first transport path 11 to form a third transport passage. The rotation speed of the diversion member 21 between the first stopping position and the second stopping position is lower than that between the first stopping position and the third stopping position and that between the second stopping position and the third stopping position.
    Type: Application
    Filed: June 18, 2008
    Publication date: August 26, 2010
    Inventors: Masaaki Fukazawa, Toshihiko Kobayashi, Tsuguo Mizoro, Hisayuki Utsumi
  • Publication number: 20100025913
    Abstract: A feeding device includes a mounting portion capable of having mounting a plurality of recording media mounted in a stacked state thereon, a delivering member which performs a feeding operation in a state in which its contact surface is in contact with a top recording medium of the recording media mounted on the mounting portion to perform delivery of the recording media by using the frictional force generated between the delivering member and the top recording medium as the transporting force, a separating member having an inclined surface against which the leading end of the recording medium delivered by the delivering member can hit up against, the separating member being fixed in place at a downstream side of the mounding portion in a feeding direction of the recording media, a gate member, and a gate urging member.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 4, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Satoshi KOBAYASHI
  • Patent number: 7654513
    Abstract: A media feedpath having a feed assist roller, comprises a media feedpath having a C-shaped portion, a media input and a feed roll nip, an input roller feeding media from the media input, a feed assist roller downstream of the C-shaped portion of the media feedpath, the feed assist roller assisting media indexing through the media feedpath on a single side and without an opposed pinch roller, the feed roll nip having a driven roller and a feed roll pinch roll opposite the driven roll, the feed assist roller being driven by a toggle gear transmission from the driven roller of the feed roll nip, the gear train adapted for toggling to operably engage or disengage the feed assist roller depending on a driving direction of the driven roller of the feed roll nip.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: February 2, 2010
    Assignee: Lexmark International, Inc.
    Inventors: Patrick A. Buxton, Kevin M. Johnson, Michael W. Lawrence