Rotary Patents (Class 271/109)
  • Patent number: 7481422
    Abstract: An image forming apparatus having a paper pickup unit includes a power unit to drive a shaft of the paper pickup unit, wherein the paper pickup unit includes a pressing plate at which a recording medium, such as a sheet of paper, is stacked, a paper feed unit body to receive the pressing plate, a shaft rotatably mounted on a front end of the pressing plate, a pickup roller to rotatably engage the shaft to pick up the recording medium stacked on the pressing plate, and a guide cam installed at least one side of the shaft and having a shock absorbing part engaged with a guide part installed at the paper feed unit body.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: January 27, 2009
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Kwang-Taek Lim
  • Publication number: 20090020943
    Abstract: A card collection mechanism may include a card collection box for collecting a card, a feeding roller for carrying the card from a feeding passage to the card collection box, and a guide part for guiding the card to the card collection box. The guide part guides the card while the guide part causes the card to be resiliently bent in a direction where an urging force directed to a surface of the feeding roller is applied to the card when the card is fed to the card collection box, and the feeding roller carries the card to a state in which the card is capable of being collected in the card collection box. The card collection mechanism may be used in a card issuing device having a card issuing part.
    Type: Application
    Filed: December 28, 2007
    Publication date: January 22, 2009
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: Keiji Ohta
  • Publication number: 20090008865
    Abstract: A recorded medium feeding device includes a pickup roller that feeds recorded medium dowstream from a setting position by contacting with the recorded medium and rotating and a separating means for separating recorded medium to be fed and subsequent recorded media from the next page onward. The positions of a nip point of the separating means and a place where the pickup roller contacts the recorded medium in the direction orthogonal to the recorded medium feeding direction with respect to a recorded medium of a predetermined size to be fed by the pickup roller are located within a range deviated to one side from the center of the recorded medium of the predetermined size. A path elongating portion that elongates the feed path length of the recorded medium by abutting the recorded medium is apart from the nip point and the place where the pickup roller contacts the recorded medium.
    Type: Application
    Filed: July 2, 2008
    Publication date: January 8, 2009
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yuji Miyamoto, Tsuyoshi Sugiura
  • Publication number: 20090008866
    Abstract: Disclosed is an image forming apparatus equipped with a pick-up roller to pick up a sheet. The image forming apparatus includes a sheet feeding tray, in which sheets are stacked, and a pick-up roller to pick up sheet from the sheet feeding tray. The pick-up roller includes a pick-up section to pick up the sheet and a feed section to deliver a sheet feeding pressure greater than that of the pick-up section to the sheet, so that a component corresponding to a feed roller can be removed, thereby simplifying the structure of the image forming apparatus and lowering the height of the image forming apparatus.
    Type: Application
    Filed: May 22, 2008
    Publication date: January 8, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jin Soo LEE
  • Publication number: 20090001655
    Abstract: A paper feed apparatus includes a gate, an actuator, a transmission, a pickup device, a reversing device, a paper feed device. The gate has a rack defined at one end of the gate and a resilient arm connecting to the outer portion of the rack. The resilient arm has a plurality of external teeth. The actuator has a pickup gear with a disc-shaped body, an external wheel connecting to the outside of the body and an external gear connecting to the outside of the external wheel. A receiving passage is defined through the pickup gear along the axis thereof. The receiving passage includes a holding hole at one side of the receiving passage that is near to the rack. The resilient arm is inserted into the receiving passage with the external teeth abutting against the inner surface of the holding hole.
    Type: Application
    Filed: June 26, 2007
    Publication date: January 1, 2009
    Inventors: Kuo-Kuang WU, Wei-Yuan Peng, Min-Hsi Liu
  • Publication number: 20090001656
    Abstract: An automatic paper feeding apparatus used in an electronic apparatus including a tray frame, a tray body, a paper-taking roller, at least a wiggling device and a frictional roller is provided. The tray body can move into and out from the tray frame. The paper-taking roller moves the top paper by rotating along a rotating direction. The wiggling device wiggles toward the paper-taking roller from an initial position. When the paper-taking roller moves the top paper, the frictional roller faces the paper-taking roller and contacts the top paper by the same frictional surface. When the tray body moves out the tray frame, the frictional roller rotates and causes the other frictional surface of the frictional roller to face the paper-taking roller substantially. When the tray body moves into the tray frame, the wiggling device wiggles toward the paper-taking roller from the initial position and wiggles back to the initial position.
    Type: Application
    Filed: April 2, 2008
    Publication date: January 1, 2009
    Applicant: LITE-ON TECHNOLOGY CORPORATION
    Inventors: Zhien Qi, Qianqiu Jin, Mingyong Wang
  • Publication number: 20080315503
    Abstract: In a sheet processing apparatus that, for example, sorts or staples sheets after image formation, when preceding finishing is not completed on a processing tray, a third sheet fed anew into a waiting tray of a sheet placing member configuring a sheet waiting unit, which temporarily puts a sheet conveyed thereto on standby, is stacked to be shifted such that leading ends of second and third sheets are located further on a conveying direction upstream side than a leading end of a first sheet. Consequently, longitudinal alignment in the processing tray after that is surely performed.
    Type: Application
    Filed: June 17, 2008
    Publication date: December 25, 2008
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Hiroyuki Taki, Yasunobu Terao, Toshiaki Oshiro, Yoshiaki Sugizaki, Mikio Yamamoto
  • Publication number: 20080315500
    Abstract: This paper feed mechanism includes a paper feed cassette integrally having a paper contact portion on a position deviating from the center of a rear-side inner wall surface in the cross direction by a prescribed distance in the cross direction and an apparatus body mountable with the paper feed cassette, and the apparatus body includes a driving portion rotating a paper feed roller in a paper feed direction and a paper discharge direction and a control portion bringing the rear end of the paper into contact with the paper contact portion for generating torque for the paper and thereafter transporting the paper to the apparatus body in paper feeding.
    Type: Application
    Filed: June 17, 2008
    Publication date: December 25, 2008
    Applicant: Funai Electric Co., Ltd.
    Inventors: Daisuke TAKASAKA, Takahiro NAITO
  • Publication number: 20080315499
    Abstract: The present application is directed to devices and methods for moving media sheets in an image forming device. In one embodiment, a contact member includes a contact roller that contacts a top-most media sheet in a stack of media sheets positioned on a support surface in an input area of the image forming device. A hub extends outward from an axial side of the contact roller. The hub includes a smaller length than the contact roller, forming a gap between the hub and the top-most media sheet when the contact roller is in contact with the top-most media sheet. The hub prevents or reduces transverse buckling of the top-most media sheet when it is moved from the stack of media sheets.
    Type: Application
    Filed: June 20, 2007
    Publication date: December 25, 2008
    Inventor: Niko Jay Murrell
  • Publication number: 20080309000
    Abstract: The present invention relates to a document-feeding device. The document-feeding device includes a sheet-feeding channel and a sheet-separating structure. The sheet-separating structure includes a base, a separation pad, a pinch roller, a separation roller and an elastic element. The base is disposed in the sheet-feeding channel. The separation pad is disposed on a surface of the base. The pinch roller is disposed in the base. The separation roller is in contact with the separation pad and the pinch roller.
    Type: Application
    Filed: December 3, 2007
    Publication date: December 18, 2008
    Applicant: Primax Electronics Ltd.
    Inventors: Tung-Wen Tu, Zeng Jian
  • Publication number: 20080309001
    Abstract: A boundary is formed between a separating pad holding member and a separating pad in a sheet conveyance direction such that a sheet feeding device includes: a feeding roller having a feeding roller surface at a part in a rotational direction; the separating pad which separates the sheet at a holding portion between the feeding roller surface and the same; the separating pad holding member which presses the separating pad against the feeding roller; and a rolling member which is disposed coaxially with the feeding roller and abuts against the separating pad free from the holding state in cooperation with the roller surface; the feeding roller surface abutting against the separating pad holding member and the separating pad in this order, respectively, via the sheet S during the rotation of the feeding roller.
    Type: Application
    Filed: June 13, 2008
    Publication date: December 18, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Motoyasu Muramatsu
  • Patent number: 7464923
    Abstract: An improved device and method for providing increased latitude of paper handling tires includes at least three elastomeric materials mounted on a shaft and divided into three or more torus-shaped sections of varied width. Combinations of EPDM, Silicone and Isoprene are examples of materials that can be used to make the paper handling tires.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: December 16, 2008
    Assignee: Xerox Corporation
    Inventors: Gary A. Faguy, John F. Lombardo, Salvatore J. Provvidenza
  • Patent number: 7461841
    Abstract: Disclosed is a sheet discharging apparatus in which an apparatus main body portion is provided with plural discharging rollers for discharging sheets by rotation, and a shaft coaxially fixed to the discharging rollers. The shaft has an outer diameter smaller than an outer diameter of the discharging roller. At the discharging roller side of the shaft is provided a small-diameter portion, with the outer diameter of the small-diameter portion smaller than the outer diameter of another portion. A projection projects from a portion of the apparatus main body portion, a tip end of the projection being disposed in a step between the small-diameter portion and the other portion of the shaft. Also disclosed is an image forming apparatus having the sheet discharging apparatus, in which an image is formed on a sheet, and the sheet on which the image is formed is discharged by the sheet discharging apparatus.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: December 9, 2008
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yasuki Tanaka, Keiji Sanekata
  • Publication number: 20080284089
    Abstract: Equipment for transferring sheets with change of direction for sheets entering along a first direction comprising output rollers to move the sheets along a second direction, right-angled with respect to the first direction, and members of engagement and movement, actuatable for engaging and moving the sheets entering along the first direction along the second direction up to the engagement with the output rollers. The members of engagement and movement provide a condition of reception which define a space of reception for the entering sheets and a condition of engagement and movement which engage and move the sheets for the engagement with the output rollers. The members of engagement and movement return to the condition of reception upon the engagement of the entered sheet with the output rollers for enabling a following sheet to enter and to be moved along the first direction jointly with the movement of the previously entered sheet along the second direction.
    Type: Application
    Filed: April 18, 2008
    Publication date: November 20, 2008
    Applicant: TECNAU S.R.L.
    Inventors: Giuliano DE MARCO, Alberto MASSUCCO, Francesco TERRUSI, Armando APRATO
  • Patent number: 7451974
    Abstract: In a recording medium conveyance device for conveying a recording medium gripped between a conveyance roller which is driven by a driving device and has a number of protrusions provided on its surface and a pressing roller arranged opposite to the conveyance roller, there is further provided with a pressing force varying device for varying the pressing force of the pressing roller acting on the recording medium, wherein the recording medium conveyance device varies the conveyance amount of the recording medium by varying the penetration amount of the protrusions into the recording medium through varying the pressing force of the pressing roller by the pressing force varying device.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: November 18, 2008
    Assignee: Konica Minolta Holdings Inc.
    Inventor: Yasushi Niizeki
  • Publication number: 20080277863
    Abstract: A paper press member 240 configured to be capable of advancing and retracting with respect to a paper guide 220 is provided between a paper feed roller 234 and the front end in the paper feed direction of paper loaded in a manual feed tray 230. When a plurality of sheets of paper enter into the press-contact section between the paper feed roller 234 and a reverse roller 235, the reverse roller 235 is rotated in the reverse direction to retract the sheet on the reverse roller side to the manual feed tray 230. At this time, by causing the paper press member 240 to project from the upper surface of the paper guide 220, the sheet to be retracted and the paper press member 240 come into contact with each other, so that the travel amount of the sheet when retracting the sheet is reduced.
    Type: Application
    Filed: May 7, 2008
    Publication date: November 13, 2008
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yasushi MATSUTOMO, Haruo SAYAMA, Kiwamu MORITA, Mikiya OKADA, Yasuhiro TAKAI
  • Patent number: 7448610
    Abstract: A paper-feeding roller (3) including a core (2) and a rubber roll (1) mounted on a peripheral surface of the core (2). The rubber roll (1) has a three-layer construction composed of an inner layer (11), an intermediate layer (12), and an outer layer (13). The inner layer (11), the intermediate layer (12), and the outer layer (13) are a non-foamed layer respectively. The JIS-A hardness of the inner layer (11) is set to not more than 10 degrees. The JIS-A hardness of the outer layer (13) is set to a range of 25 to 60 degrees.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: November 11, 2008
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Yasuchika Ito, Hirokazu Nishimori, Takeshi Ishimaru, Noriaki Hitomi
  • Publication number: 20080272536
    Abstract: A paper feeding device includes: a reference guide surface that contacts a lateral end portion of a sheet-shaped medium along a guide path for transporting the medium; a tapered guide surface that is inclined outward from the reference guide surface toward an upstream side of a transport direction and contacts the lateral end portion of the medium; a paper feeding roller that rotates to transport the medium in a direction parallel to the reference guide surface while the paper feeding roller contacts a surface of the medium; and a medium cassette that stores the medium. The medium cassette stores the medium so as to be inclined with respect to the reference guide surface so that a rear end of the lateral end portion of the stored medium at a side of the reference guide surface is positioned outside an imaginary extension surface of the reference guide surface.
    Type: Application
    Filed: December 18, 2007
    Publication date: November 6, 2008
    Applicant: Seiko Epson Corporation
    Inventors: Nobuhiro Inoue, Hiroyuki Takahashi
  • Publication number: 20080251991
    Abstract: A sheet conveying apparatus includes: a sheet conveyance path designed so as to include nonlinear portions; a first conveyance roller pair which is provided at predetermined positions of the sheet conveyance path and which has a conveyance width capable of nipping and conveying a sheet having the minimum size sheet passing width among sheets to be passed through the sheet conveying apparatus; a guide plate which is placed in a downstream side or an upstream side of the first conveyance roller pair in a sheet conveyance direction and has a curved guide surface; and a plurality of guide ribs which are extended on the guide surface in the sheet conveyance direction and are provided in a sheet passing width direction of the sheet in a region corresponding to the conveyance width of the first conveyance roller pair.
    Type: Application
    Filed: April 7, 2008
    Publication date: October 16, 2008
    Applicant: KYOCERA MITA CORPORATION
    Inventor: Hideaki Doyo
  • Patent number: 7435025
    Abstract: An image recording apparatus includes an accommodation section, an image recording section, an outer arcuate guide member, an inner arcuate guide member, and a feeding section. Recording media are stacked on the accommodation section. The image recording section forms an image on a recording medium conveyed in a conveyance direction. The outer arcuate guide member connects in a U-shape the accommodation section with the image recording section. The outer arcuate guide member guides the recording medium from a downstream end portion of the accommodation section to an insertion port of the image recording section. The inner arcuate guide member is disposed to be separate from the outer arcuate guide member. A passage is defined between the outer arcuate guide member and the inner arcuate guide member. The passage allows the recording medium to displace in a thickness direction thereof.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: October 14, 2008
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Naokazu Tanahashi, Yukio Shiohara, Yusaku Watanabe, Kosuke Nukui
  • Publication number: 20080246210
    Abstract: A paper feeding device comprises an upper frame, a pickup roller assembly connected to the upper frame and a lower frame. The pickup roller assembly includes a roller frame, a separating roller, a pickup roller, and a belt sleeved on both the separating roller and the pickup roller. The separating roller and the pickup roller are connected to the roller frame. The belt impels the separating roller and the pickup roller to press against the roller frame. When the separating roller rotates, the friction created between the separating roller and the roller frame and the friction created between the pickup roller and the roller frame drives the pickup roller assembly to rotate, then the paper is fed into the paper feeding device. The structure of the paper feeding device is simple and the cost is lower than the conventional one, moreover, it is convenient to assemble.
    Type: Application
    Filed: April 4, 2007
    Publication date: October 9, 2008
    Applicant: FOXLINK IMAGE TECHNOLOGY CO., LTD.
    Inventors: Yueh-Shing Lee, Kuo-Kuang Wu, De-You Chu
  • Publication number: 20080237970
    Abstract: A sheet cassette loads and houses therein a plurality of sheets. A separating unit separates the sheets loaded in the sheet cassette one by one. The separating unit is arranged in the sheet cassette in opposite to a feeding roller that conveys the sheets from the sheet cassette. A rib is formed on a rear surface of a bottom plate of the sheet cassette. The rib is pressed by a pressing member.
    Type: Application
    Filed: January 24, 2008
    Publication date: October 2, 2008
    Inventors: Mizuna Tanaka, Hiroshi Fujiwara, Shigeo Nanno, Tomoyoshi Yamazaki, Yasuhide Ohkubo, Haruyuki Honda, Ippei Kimura, Masafumi Takahira, Toshikane Nishii
  • Publication number: 20080240823
    Abstract: The invention describes a sheet conveying device having a feed tray for storing sheets, a first conveying path for conveying a first sheet in a first direction, a feed roller that feeds the sheets in the feed tray to the first conveying path, a second conveying path that connects the first conveying path and the feed tray, and conveys the first sheet in a direction opposite the first direction, and a multiple feed guide in the second conveying path, which has a guide for guiding the first sheet between the feed roller and the feed tray, and an overlying portion which overlies the feed tray on one side of the feed roller. The feed roller feeds the first sheet that was fed to the first conveying path, and was guided by the multiple feed guide, back to the first conveying path. A duplex printer incorporates this sheet conveying device.
    Type: Application
    Filed: March 22, 2008
    Publication date: October 2, 2008
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Tetsuo Asada
  • Publication number: 20080237969
    Abstract: A method and device disclosed herein controls the movement of media sheets within an image forming device using a pick mechanism that contacts and moves a media sheet from an input area into a media path. One embodiment controls the rotational speed of the pick mechanism based on a filtered combination of a pick mechanism signal and an encoder signal. An encoder roller positioned to contact the media sheets in the input area senses the movement of the media sheet to generate the encoder signal.
    Type: Application
    Filed: March 29, 2007
    Publication date: October 2, 2008
    Inventors: Kenji Totsuka, John Spicer, Delbert Lester Elliott
  • Publication number: 20080230982
    Abstract: A sheet supplying apparatus capable of being connected with sheet feeding apparatuses, image forming apparatuses and post processing apparatuses having: a common conveyance path to convey the sheet from the apparatuses on the upper stream side or sheet storing sections to down stream side having, a plurality of sheet feeding paths, a receiving conveyance path, a sending conveyance path, and a transit path to connect the receiving conveyance path and sending conveyance path, wherein the sending conveyance path has a shared conveyance path in which a plurality of sheet conveyance paths to feed the sheet from a plurality of the sheet storing sections are merge and reach to a sheet outlet, and the transit conveyance path is provided integrally with any one of the sheet storing sections, which can be withdrawn from a sheet supplying apparatus main body, at the bottom of the sheet storing section thereof.
    Type: Application
    Filed: January 16, 2008
    Publication date: September 25, 2008
    Inventor: Akira KOSUGI
  • Publication number: 20080211161
    Abstract: In a sheet finishing apparatus of the present invention, when temporarily loading a plurality of sheets of paper on a standby tray until a processing tray finishes processing, to prevent a sheet of paper loaded first from being pressed out by a sheet of paper ejected later, a chuck for retaining the rear ends of the sheets of paper is installed on the downstream side of the standby tray, and for curled sheets of paper, a standby tray guide and an arm member for suppressing curling of the central part of the sheets of paper are installed, thus matching on the standby tray is stabilized.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 4, 2008
    Inventors: Yasunobu TERAO, Hajime Yamamoto, Yoshiaki Sugizaki, Tomomi Iijima, Hiroyuki Taki
  • Publication number: 20080205952
    Abstract: A sheet feeding device, including: a first tray on which sheets to be fed are stacked; a second tray which is disposed above the first tray to provide a two-tier structure and on which the sheets after having fed from the first tray are stacked; a sheet-feed path extending from the first tray to the second tray; a sheet-feed mechanism which is operable to separate one of the sheets stacked on the first tray, to feed the one of the sheets into the sheet-feed path, and to discharge the one of the sheets to the second tray such that the one of the sheets slides under another of the sheets that has been discharged immediately before the one of the sheets; and at least one sheet guide which is configured to warp the sheets discharged to the second tray, in a direction perpendicular to a sheet-feed direction in which the sheets are fed.
    Type: Application
    Filed: February 26, 2008
    Publication date: August 28, 2008
    Inventor: Shunji Murai
  • Publication number: 20080203650
    Abstract: The invention describes an image recording device having a sheet supplying device that supplies sheets. The sheet supplying device has a first tray and a second tray that hold sheets, and a first and second shaft positioned over the first and second trays. A first rotating member contacts a sheet in the first tray, and a second rotating member contacts a sheet in the second tray. A first arm extends from the first shaft to the first rotating member, and a second arm extends from the second shaft to the second rotating member. A transmission device is coupled to the first arm member and the second arm member, and transmits selectively a rotational drive force from the first shaft to either the first or second rotating members. A recording unit records an image on the sheet supplied by the sheet supplying device.
    Type: Application
    Filed: February 18, 2008
    Publication date: August 28, 2008
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shingo Ito, Noritsugu Ito, Naokazu Tanahashi, Wataru Sugiyama
  • Publication number: 20080203651
    Abstract: A document feeder device is disclosed. The document feeder device includes a frame and at least one cantilevered roller shaft for advancing a document, where an unsupported end of the at least one cantilevered roller shaft floats. The document feeder device eliminates the need for a rigid frame to support the unsupported end. This decreases the cost of production by eliminating the need for additional frame hardware and/or more rigid frame hardware. The document feeder device can be implemented in existing designs.
    Type: Application
    Filed: May 8, 2008
    Publication date: August 28, 2008
    Applicant: International Business Machines Corporation
    Inventors: Hye Suk Chi, Robert Andrew Myers
  • Publication number: 20080197142
    Abstract: A removing mechanism is disclosed for removing the bottom or top sheet from a stack of sheets; a delaying member for a delay of a predetermined time between the dispensing of two successive sheets; and an actuating mechanism for driving the removing mechanism, wherein the actuating mechanism is driven via a physically supplied mechanical drive force of an operator of the dispensing apparatus.
    Type: Application
    Filed: September 28, 2005
    Publication date: August 21, 2008
    Inventors: Johannes Christina Langen, Herman Josef Langen
  • Publication number: 20080179815
    Abstract: A job separator has a first roller unit and a second roller unit adjacent to the first roller unit. The first roller unit has a first driven roller and a first drive roller, which receive and convey a sheet between them. The second roller unit has a second driven roller and a second drive roller, which also receive and convey a sheet between them. The second drive roller may selectively move between a first position, in which the second drive roller is below the second driven roller, and a second position in which the second drive roller is above the second driven roller. An image processing apparatus has the job separator, a recording unit, an output tray, and a control unit for controlling the second drive roller.
    Type: Application
    Filed: January 31, 2008
    Publication date: July 31, 2008
    Inventors: Shingo Ito, Noritsugu Ito, Wataru Sugiyama, Naokazu Tanahashi
  • Patent number: 7401780
    Abstract: A method and apparatus for moving media through an image forming device using a roller having a recessed kick area is described herein. The roller includes a contact surface having a first radius that extends 360° around the roller. The roller also includes at least one recess that extends inwardly from the contact surface along a sector of the roller, where a bottom surface of the recess has a second radius less than the first radius. As a result, along the sector of the roller having the recess, the width of the contact surface is less than the width of the roller. The recess comprises at least one kick surface on one end of the recess. As the roller rotates, the kick surface kicks a trailing edge of media exiting the exit roller system into a desired bin of the image forming device.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: July 22, 2008
    Assignee: Lexmark International, Inc.
    Inventors: Daniel L. Carter, Phill Douglas Cole, Edward Lawrence Kiely
  • Patent number: 7401773
    Abstract: A paper-feeding mechanism includes a paper tray for positioning print media, a pickup roller installed in front of the paper tray for pressing print media so as to pick up print media, a pickup arm fixed to a first shaft at one end and connected to the pickup roller at another end for driving the pickup roller to rotate around the first shaft, a first gear installed inside the pickup arm and connected to a first end of the pickup roller, a swing arm fixed to a second shaft at one end and connected to a second gear for gearing the first gear at another end, a third gear fixed to the second shaft and engaged with the second gear for driving the swing arm and the second gear to rotate, and a driving device for driving the third gear.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: July 22, 2008
    Assignee: Qisda Corporation
    Inventor: Chien-Chih Chen
  • Publication number: 20080164650
    Abstract: An imaging apparatus including a media source having a plurality of sheets of photothermographic imaging media contained therein, an exposure unit including an input engagement point, an output engagement point, and a laser module positioned therebetween, and a driven roller pair forming a nip. A driven roller pair is configured to receive a leading edge of a sheet from a media source and is configured to begin extracting the sheet from the media source and driving the sheet along a transport path extending from the media source to at least the output engagement point of the exposure unit. Upon the leading edge being engaged by the input engagement point, the nip is configured to open while the trailing edge of sheet is still within the media source such that a remaining portion of the sheet is extracted from he media source by the exposure unit while the laser module exposes a desired image on the sheet.
    Type: Application
    Filed: January 4, 2007
    Publication date: July 10, 2008
    Inventors: Curt A. Wiens, Chris Zwettler, Hoa Pham
  • Publication number: 20080157460
    Abstract: A sheet feeding apparatus including: a sheet holding portion which holds a sheet; a feed path which guides the sheet supplied from the sheet holding portion; a driving source which can rotate in two opposite directions; a feeder roller which is disposed in the feed path and rotated by a driving torque of the driving source; a pickup roller which can rotate in contact with the sheet held in the sheet holding portion; a switchable transmission mechanism which is disposed between the pickup roller and the driving source, and is switchable at least between a first state for transmitting to the pickup roller a rotation of the driving source in a forward direction, and a second state for not transmitting a rotation of the driving source to the pickup roller, the forward direction in which the driving source is rotated in the first state being a direction opposite to a direction in which the driving source is rotated to rotate the feeder roller in a sheet feed direction which is a direction to feed the sheet; and a
    Type: Application
    Filed: December 26, 2007
    Publication date: July 3, 2008
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masatoshi Izuchi, Yuji Koga
  • Publication number: 20080157458
    Abstract: A friction feeder apparatus for handling sheets of paper of differing thicknesses includes a first plurality of laterally spaced apart transport belts positioned in underlying relation to the paper and a second plurality of laterally spaced apart separator wheels positioned in overlying relation to the paper. The transport belts are staggered with respect to the separator wheels. A sheet of paper passing through the feeder apparatus is undeflected from the top as it encounters the transport belts and is unsupported from the bottom as it encounters the separator wheels so that the sheet of paper is not held flat as it passes through the feeder but instead is forced into a wave-like, sinusoidal-like shape. In a first embodiment, the separator wheels are downstream of a fixed nip roller and in a second embodiment, the separator wheels are upstream of the fixed nip roller.
    Type: Application
    Filed: December 28, 2006
    Publication date: July 3, 2008
    Inventor: Todd C. Werner
  • Publication number: 20080157459
    Abstract: A sheet feeding device includes a guiding member having an upper guiding surface for guiding the upper surface of a document and a lower guiding surface for guiding the lower surface of the document to guide the document to a support portion. The guiding member is movable to a set position for guiding the document to the support portion without causing the document to come into contact with a feeding roller, a recording-sheet separation position withdrawn for separating one sheet from the other recording sheets and feeding the separated sheet, a document separation position for guiding the document to the feeding roller, and a sheet return position for returning the recording sheet or the document to a corresponding support portion using a return lever. The guiding member is held via a spring such that the guiding member can be returned by itself from the sheet return position to the set position.
    Type: Application
    Filed: December 20, 2007
    Publication date: July 3, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hideyuki Terashima, Kazuyuki Morinaga, Akihiro Tomoda, Hideaki Nagahara, Naohiro Iwata, Yoshiaki Suzuki
  • Publication number: 20080157462
    Abstract: A card sending device for use with cards may include a card storage part in which a plurality of cards are stacked and stored, a gate through which a card is capable of passing to an outside of the card storage part, a sending pawl which is capable of engaging with the card to send it to the gate one by one, a pawl feeding mechanism for moving the sending pawl, a sending drive roller for sending the card which is sent by the sending pawl, one drive source for driving the pawl feeding mechanism and the sending drive roller together and a transmission mechanism for transmitting a driving force of the drive source to the pawl feeding mechanism and the sending drive roller so that a sending speed for the card by the sending drive roller is set to be faster than a sending speed for the card by the sending pawl.
    Type: Application
    Filed: December 20, 2007
    Publication date: July 3, 2008
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: Keiji Ohta
  • Patent number: 7392979
    Abstract: A paper supply device for reliably delivering sheets of paper one at a time from a stock of multiple sheets even when the leading ends of the sheets are not neatly aligned together.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: July 1, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Toshiyuki Sasaki, Takeshi Komaki, Shunpei Ogaya
  • Publication number: 20080150220
    Abstract: A friction backup roller assembly for a peripheral device, comprising an auto-compensating mechanism having a pick tire at one end, a media tray disposed adjacent to the auto-compensating mechanism, a backup roller extending through an aperture in the media tray, the backup roller having a tire, the auto-compensating mechanism pivotally positioned for engagement and disengagement of the pick tire with the backup roller, and a biasing element acting on the backup roller.
    Type: Application
    Filed: December 20, 2006
    Publication date: June 26, 2008
    Inventors: Dean Alan Eltzroth, Kevin Matthew Johnson, Michael William Lawrence, Robert Sandheinrich
  • Publication number: 20080143039
    Abstract: The present application is directed to devices and methods for moving media sheets within an image forming device. One embodiment includes a registration mechanism located along the media path. The mechanism may include a series of discrete registration nips that each includes a pair of drive rolls and idler roll. The nips are spaced at intervals across the media path. Guide ribs are arranged across the media path and may be positioned between the nips. The guide ribs further guide the media sheets through the registration mechanism and along the media path.
    Type: Application
    Filed: December 15, 2006
    Publication date: June 19, 2008
    Inventors: Kristi Ann Kappes, David Erwin Rennick, Niko Jay Murrell, Edward Lynn Triplett, Jason Lee Rowe
  • Publication number: 20080143040
    Abstract: A paper feeding and sheet separating differential device comprises a rotating shaft, a first roller, a second roller and an insertion pin, in which the first roller is installed on one end of the rotating shaft and comprises a first outer frame and a first raised mass disposed on an inner side of the first outer frame; the second roller is put around the rotating shaft and comprises a second outer frame, an accepting hole disposed inside the second outer frame and used for receiving the rotating shaft, a groove extended axially from the accepting hole to the second outer frame and the second raised mass disposed on an circumference of the accepting hole and used for propping against the first raised mass. Furthermore, the insertion pin is passed through the rotating shaft and then received in the groove.
    Type: Application
    Filed: February 16, 2007
    Publication date: June 19, 2008
    Applicant: TECO IMAGE SYSTEM CO., LTD
    Inventors: Ming-Chieh CHUNG, Hsiu-Hao CHENG
  • Publication number: 20080136085
    Abstract: A sheet conveyance apparatus having; a conveyance roller, wherein a surface roughness Ra of a surface layer remains in a range from 8 ?m to 30 ?m, at a stage where a total length of sheets conveyed reaches at 42,000 m.
    Type: Application
    Filed: October 17, 2007
    Publication date: June 12, 2008
    Inventor: Tomoo SUZUKI
  • Publication number: 20080136084
    Abstract: An automatic document feeder for electric equipment includes an input tray, a driving mechanism, and a block mechanism. The input tray has a receiving end, a discharge end, and a first path extending from the receiving end to the discharge end. The driving mechanism includes a separating-roller shaft disposed above the input tray and in proximity to the discharge end, and a separating roller sleeved fixedly on the shaft. The blocking mechanism includes a blocking member pivotable between a blocking position whereat the blocking member is disposed on the first path, and a non-blocking position whereat the blocking member is removed from the first path. A driven arm is connected to and co-rotatable with the separating-roller shaft so as to pivot the blocking member between the blocking position and the non-blocking position.
    Type: Application
    Filed: July 9, 2007
    Publication date: June 12, 2008
    Applicant: LITE-ON TECHNOLOGY CORP.
    Inventors: TIEN-HO HSU, HSUAN-YANG LIN, CHUNG-LUNG YU, YU-JEN TSAO
  • Publication number: 20080136092
    Abstract: Methods and systems for performing sheet registration are described. A device having a plurality of drive rolls may receive a sheet. Each drive roll may operate with an associated angular velocity. A state vector, including a plurality of state variables, may be identified. Error-space state feedback values may be determined based on a difference between each state variable and a corresponding reference state variable based on a desired sheet trajectory. Control input variable values may be determined based on the error-space feedback values and one or more gains. A motor control signal for a motor for each drive roll may be determined based on the control input variable values and the state variables. Each motor control signal may impart a desired angular velocity for at least one drive roll. The identifying step and each determining step may be performed repeatedly to register the sheet to the desired trajectory.
    Type: Application
    Filed: December 6, 2006
    Publication date: June 12, 2008
    Inventor: Jack Gaynor Elliot
  • Publication number: 20080128972
    Abstract: The sheet conveying roller includes a shaft member and a sliding portion arranged in the circumferential direction of the shaft member. The sliding portion is adapted to make sliding contact with the shaft member. The sheet conveying roller also includes an elastic member configured to fasten the sliding portion to the shaft member and makes contact with a conveyed sheet at an outer circumference thereof. The elastic member generates a frictional resistance between the shaft member and the sliding portion by a clamping force of the elastic member.
    Type: Application
    Filed: November 27, 2007
    Publication date: June 5, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Fumimitsu Kishimoto, Tomoo Akaba, Shimpei Kogawa
  • Patent number: 7380782
    Abstract: An automatic document feeder (ADF) having a replaceable friction roller assembly. The ADF includes a housing having a back plate which may be raised and a base pivotalby connected to the back plate, a supporting element disposed on the housing and having a shaft hole, a first engaging structure disposed on the housing, and a friction roller assembly. The friction roller assembly includes a rotating shaft, a friction roller and a first sleeve. The friction roller is fixed to the rotating shaft. The first sleeve is rotatably mounted on the rotating shaft. The first sleeve has a second engaging structure which is engaged with the first engaging structure in order to rotatably and firmly mount the rotating shaft to the housing. The friction roller assembly may be replaced when the second engaging structure and the first engaging structure are disengaged.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: June 3, 2008
    Assignee: Avision Inc.
    Inventor: Szu Hui Lien
  • Patent number: 7380783
    Abstract: A media feeding apparatus includes a side wall, the side wall having a first side surface and an opposite side surface. A sheet picking mechanism has a pick arm and a pick roller. The pick arm is configured to mount the pick roller. The pick arm has a pivot axis substantially perpendicular to the side wall. A restraint is mounted to the pick arm, wherein at least the first side surface of the side wall is in close proximity to the restraint.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: June 3, 2008
    Assignee: Lexmark International, Inc.
    Inventor: William Scott Klein
  • Publication number: 20080122161
    Abstract: A sheet feeder includes a sheet tray, a feed roller, a separating pad, a feed motor, a conveying roller pair, and a deformation prevention member. The sheet tray loads sheets including first and second sheets. The feed roller picks up and feeds the first and second sheets. The separating pad separates the first sheet from the second sheet together with the feed roller. The feed motor drives the feed roller. The conveying roller pair is provided downstream from the feed roller in a sheet conveyance direction, and feeds the first sheet fed by the feed roller. The deformation prevention member prevents deformation of a head of the second sheet caused by the feed roller and the separating pad nipping the second sheet.
    Type: Application
    Filed: November 9, 2007
    Publication date: May 29, 2008
    Inventor: Akihiro FUJITA
  • Publication number: 20080121570
    Abstract: A system controlled responsive to data bearing records includes a card reader that is operative to read data from user cards including identifying data, and authorizes operation of an automated banking machine responsive to the identifying data. The automated banking machine includes a housing including a generally L-shaped chest portion and an upper housing portion. The banking machine includes a fascia which extends on the outside of a wall and includes a user interface. Responsive to inputs of a user through the user interface the machine is operative to accept a stack of sheets which are evaluated through operation of a sheet validator device and which enables acceptable sheets to be stored within the chest portion. Unacceptable sheets may be routed to a storage area. Provisions may be made for reducing the risk of attack on the machine by criminals and to facilitate servicing by authorized personnel.
    Type: Application
    Filed: January 28, 2008
    Publication date: May 29, 2008
    Applicant: Diebold Self-Service Systems division of Diebold, Incorporated
    Inventors: Zachary Utz, Daniel Schoeffler, Shawn Griggy, Nat Ramachandran, H. Thomas Graef