Synchronized With Intermittently-active Conveyor-couple Patents (Class 271/246)
  • Patent number: 10315869
    Abstract: A sheet feeding device includes: a feeding unit that is provided to be movable in a forward-backward direction to move forward or backward relative to a sheet placing unit on which a sheet is placed, and feeds the sheet; a moving unit that moves the feeding unit in the forward-backward direction; a contact unit that is provided to be movable, with which the sheet placed on the sheet placing unit is brought into contact; a limitation unit that limits movement of the contact unit; and a releasing unit that, when the moving unit moves the feeding unit in a direction away from the sheet placing unit, with the movement of the feeding unit, releases limitation on the movement of the contact unit by the limitation unit.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: June 11, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hiroshi Kikuchi, Kei Watanabe
  • Patent number: 10015337
    Abstract: Provided is a recording apparatus capable of accurate positioning and size detection in accordance with a medium size in a paper feed cassette capable of supporting media of a plurality of sizes.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: July 3, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Yuji Miyamoto, Masaki Shimomura
  • Patent number: 9180483
    Abstract: Provided is an integrated coating system. An integrated coating system according to an exemplary embodiment of the present invention includes: a unwinding means provided with a roll to supply a web; a worktable roll configured to support the web supplied from the unwinding means; a plurality of printing means configured to perform printing or coating on the web supplied from the unwinding means; a plurality of curing means each of which is modulated to cure a printing material on the web passing through at least one printing means; and a winding means around which the web, of which printing or coating work is completed by passing through the curing means, is wound in a roll shape.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: November 10, 2015
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: In Young Kim, Taik Min Lee, Seung-Hyun Lee, Dong Woo Kang, Kwang-Young Kim, Young Man Choi
  • Patent number: 9022384
    Abstract: A recording-material transport apparatus includes a transport unit that transports a recording material, a detector that detects a position of the recording material in intersecting directions intersecting a transport direction in which the recording material is transported by the transport unit, and a moving member that moves the recording material transported by the transport unit to a predetermined position in a predetermined one of the intersecting directions on the basis of a detection result of the detector.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: May 5, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yousuke Hasegawa, Michio Tada, Takashi Abe, Yoshiyuki Takaishi, Yoichi Yamakawa, Hisakazu Onoe, Makio Uehara, Yasunobu Gotoh
  • Publication number: 20150108706
    Abstract: A transport device includes an abutting member that abuts a leading end of a transport object and transport members that are disposed upstream of the abutting member in a transport direction and transport the transport object to the abutting member. The transport object is a first or second transport object. One of the transport members or the transport members transport the first transport object and cause the leading end of the first transport object to abut the abutting member. When transporting the transport object to a position where the leading end of the transport object abuts the abutting member, a transport force required to transport the second transport object is larger than that required to transport the first transport object. A larger number of transport members are used to transport the second transport object than the number of the transport members used to transport the first transport object.
    Type: Application
    Filed: April 21, 2014
    Publication date: April 23, 2015
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kiyoshi WATANABE, Naohito OTSUKI, Yoichi YAMAKAWA, Mizuki ARAI
  • Patent number: 8991819
    Abstract: A sheet conveying device includes a blocking member having a blocking surface with which a leading end of a sheet that is being conveyed comes into contact for obliquity correction. The blocking member is rotated by being pushed by the sheet against an urging force of a positioning unit that positions the blocking member to be in the standby position. The blocking member is rotatable to be in a sheet-passage-allowing orientation in which the sheet is allowed to pass. When a trailing end of the sheet that is being conveyed has passed the blocking member, the blocking member that is in the sheet-passage-allowing orientation rotates in a same direction as a sheet conveyance direction and is positioned to be in a standby position.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: March 31, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Watanabe, Minoru Kawanishi, Motohiro Furusawa, Hiroki Yamaguchi, Shigeo Murayama
  • Patent number: 8985578
    Abstract: A sheet aligning device may include a sheet conveyance path; a detecting unit configured to detect a side edge of a sheet being conveyed in the sheet conveyance path; a stopper on an upstream side of the detecting unit and configured to open/close so as to allow/prevent passage of the sheet and to position a leading edge of the sheet; a first conveying unit on an upstream side of the stopper, the first conveying unit including a pair of first rollers configured to come in contact with/separate from each other; a second conveying unit on an upstream side of the first conveying unit, the second conveying unit including a pair of second rollers configured to come in contact with/separate from each other; and a horizontal movement unit configured to move the pair of first rollers in an axial direction based on a detection result output by the detecting unit.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: March 24, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Takayuki Muneyasu, Junji Shirakawa, Yutaka Shoji, Takeshi Watanabe
  • Patent number: 8973918
    Abstract: A sheet conveying apparatus including: a skew feeding correcting portion configured to correct skew feeding of a sheet, the skew feeding correcting portion including: a rotary member pair configured to convey the sheet; a shutter member configured to abut against a leading edge of a sheet being conveyed, and having a home position; and a moving member arranged with a gap formed between the moving member and the shutter member positioned in the home position, such that the shutter member is moveable independently from the home position up to a point of engagement with the moving member, when the gap is closed, and such that the moving member is movable integrally with the shutter member while the gap is closed, wherein the rotary member pair is arranged to nip a sheet during a period in which the shutter member is configured to move integrally with the moving member.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: March 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Motoyasu Muramatsu, Takashi Kuwata, Masaki Seto
  • Publication number: 20150035227
    Abstract: A sheet conveying unit includes a shutter portion including an abutting portion correcting a skew of a sheet by abutting against a front end of the sheet at a standby position upstream in a sheet conveying direction of a nip of the conveying roller pair, and a bias portion biasing the shutter portion such that the abutting portion is positioned at the standby position. The bias portion is configured such that a rate of increase of a bias force applied from the bias portion to the shutter portion during when the abutting portion is turned from the standby position to a nip position where the sheet is nipped by the conveying roller pair is smaller than a rate of increase of the bias force during when the abutting portion turns by being pushed by the sheet nipped by the conveying roller pair from the nip position.
    Type: Application
    Filed: July 24, 2014
    Publication date: February 5, 2015
    Inventor: Jun Nakamura
  • Patent number: 8944432
    Abstract: A sheet conveying device includes a shift unit. The shift unit includes a gate member configured to align a recording medium being conveyed thereto by causing a leading end of the recording medium to abut against the gate member so that part of the recording medium bends to form a curved portion; a pair of registration rollers configured to convey the recording medium aligned by the gate member at a predetermined timing, the pair of registration rollers including a driving roller and a driven roller, the driving roller having a rotating shaft coaxial with a rotational central shaft of the gate member; and a drive transmitting unit configured to transmit rotational drive from a drive unit to the driving roller, the drive transmitting unit being disposed on an end side of the rotating shaft of the driving roller.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: February 3, 2015
    Assignee: Ricoh Company, Limited
    Inventor: Yuji Karikusa
  • Publication number: 20140367910
    Abstract: The device (1) comprises a support housing (2-4) having first and second openings (3a, 3b) intended to be positioned during use facing an area (A) for the introduction of one or more documents (BC) to be processed, first and second rotatable gripping members (5, 6) for respectively performing aligning and forwarding, mounted in the housing (2-4) and designed to extend through the first and second openings (3a, 3b), respectively, these gripping members (5, 6) being rotatable about respective axes (V-V, U-U) oriented in different directions, and driving and control devices (10-17) designed to cause rotation of the gripping members (5, 6) about the respective axes (V-V, U-U) and their displacement through said openings (3a, 3b) between a retracted position and an extracted position with respect to the housing (2-4).
    Type: Application
    Filed: January 31, 2013
    Publication date: December 18, 2014
    Applicant: PANINI S.P.A.
    Inventors: Pierpaolo Bubbio, Manlio Lombardo
  • Patent number: 8905401
    Abstract: The present device includes a conveying path, a contact member coming in contact with the front of a printing medium to stop the conveyance of the medium, a hold member holding the front of the medium having contacted with the contact member, a first conveying unit conveying the medium so as to abut the contact member to form slack on the medium between itself and the hold member holding the medium, and a second conveying unit being provided nearer to the hold member than the first conveying unit in the conveying direction and conveying the medium so as to abut the contact member to form the slack. The second conveying unit is movable so that a part thereof existing on the side where the slack is formed on the medium in the conveying path is moved to the outside of the conveying path.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: December 9, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Toshihiro Nakagaki
  • Patent number: 8876108
    Abstract: A sheet transport apparatus includes: a transport portion that transports a sheet; a skew correction portion against which a leading edge of the sheet transported by the transport portion abuts for skew correction, the skew correction portion moving to a position where the skew correction portion does not hinder the transport of the sheet after the skew correction; and a plurality of sheet abutting portions that is provided in the skew correction portion and against that the leading edge of the sheet transported by the transport portion abuts, the plurality of sheet abutting portions respectively including a resin member, and an abutting portion which is provided in the resin member and having an abrasion resistance higher than that of the resin member, and against which the leading edge of the transported sheet abuts.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: November 4, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Wataru Uchida, Ryo Iwasawa, Yasuhiko Fuse
  • Patent number: 8849178
    Abstract: A sheet detecting apparatus including: a sheet detecting member having a plurality of abutment surfaces in a peripheral direction thereof, the sheet detecting member being rotated by a conveyed sheet abutting against one of the plurality of abutment surfaces; a detection portion which operates in association with the sheet detecting member; a sensor which generates a signal based on a position of the detection portion; and an urging portion which generates an urging force for positioning the one of the plurality of abutment surfaces of the sheet detecting member in a waiting position in which the leading edge of a sheet conveyed by a conveying portion abuts against the one of the plurality of abutment surfaces, and thereafter the urging portion switching the urging force to an urging force for positioning, in the waiting position, another one of the plurality of abutment surfaces against which a succeeding sheet abuts.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: September 30, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Yoshimura, Kenji Watanabe, Minoru Kawanishi, Motohiro Furusawa, Yohei Suzuki
  • Patent number: 8789827
    Abstract: A sheet conveying device includes a pair of upstream sheet conveying rollers, a pair of downstream sheet conveying rollers, and a gate unit including multiple striking faces disposed adjacent to the pair of downstream sheet conveying rollers. The gate unit is enabled to enter and evacuate from a sheet conveyance path. A skew correction control mechanism is provided to correct skew by bringing the gate unit into the sheet conveyance path to cause the striking faces to collide with a leading end of the sheet with the skew while rotating the pair of upstream sheet conveying rollers. One or more rollers are included in one of the pair of upstream sheet conveying rollers and are disposed in the vicinity of a widthwise center of the sheet conveyance path. A width of one or more rollers is smaller than a widthwise interval between the multiple striking faces.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: July 29, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Yuji Karikusa
  • Patent number: 8740215
    Abstract: A sheet conveying apparatus, including: a first conveying portion; a second conveying portion arranged downstream of the first conveying portion; a shutter member rotated by the pressure of the sheet and including a plurality of abutment surfaces against which a leading edge of the sheet conveyed by the first conveying portion abuts to correct a skew feed of the sheet; and an urging portion which provides the shutter member with an urging force for positioning one abutment surface at an abutment position at which the leading edge of the sheet abuts against the one abutment surface, the urging portion providing the shutter member with an urging force for rotating the shutter member to position another abutment surface at the abutment position after the leading edge of the sheet is nipped by the second conveying portion.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: June 3, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Watanabe, Yohei Suzuki, Motohiro Furusawa, Minoru Kawanishi
  • Patent number: 8699938
    Abstract: A sheet conveying apparatus includes: a rotating member configured to rotate by being pushed by a leading edge of a sheet being conveyed; a sensor configured to output a signal corresponding to a position of the rotating member; a first abutting portion provided on the rotating member and with which the leading edge of the sheet being conveyed comes into contact; and a second abutting portion provided on the rotating member on a side opposite from the first abutting portion with respect to a rotation shaft of the rotating member and configured to come into contact with the sheet being conveyed in the course of the rotation of the rotating member by being pushed by the leading edge of the sheet being conveyed.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: April 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keisuke Mogi
  • Patent number: 8439358
    Abstract: A sheet conveying apparatus, including: a first conveying portion; a second conveying portion arranged downstream of the first conveying portion; a shutter member rotated by the pressure of the sheet and including a plurality of abutment surfaces against which a leading edge of the sheet conveyed by the first conveying portion abuts to correct a skew feed of the sheet; and an urging portion which provides the shutter member with an urging force for positioning one abutment surface at an abutment position at which the leading edge of the sheet abuts against the one abutment surface, the urging portion providing the shutter member with an urging force for rotating the shutter member to position another abutment surface at the abutment position after the leading edge of the sheet is nipped by the second conveying portion.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: May 14, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Watanabe, Yohei Suzuki, Motohiro Furusawa, Minoru Kawanishi
  • Patent number: 8419013
    Abstract: A disclosed sheet aligning device includes a sheet conveyance path; a detecting unit configured to detect a side edge of a sheet being conveyed in the sheet conveyance path; a stopper provided on an upstream side of the detecting unit and configured to open/close in such a manner as to allow/prevent passage of the sheet through the sheet conveyance path and to position a leading edge of the sheet being conveyed in the sheet conveyance path; a first conveying unit provided on an upstream side of the stopper, the first conveying unit including a pair of first rollers configured to come in contact with/separate from each other; a second conveying unit provided on an upstream side of the first conveying unit, the second conveying unit including a pair of second rollers configured to come in contact with/separate from each other; and a horizontal movement unit configured to move the pair of first rollers in an axial direction of the first rollers based on a detection result output by the detecting unit.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: April 16, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Takayuki Muneyasu, Junji Shirakawa, Yutaka Shoji, Takeshi Watanabe
  • Patent number: 8403324
    Abstract: A sheet skew feeding correcting apparatus includes a shutter member which abuts against a leading end of the sheet conveyed by the conveying apparatus, the shutter member is movable between a first attitude where the shutter member abuts against the leading end of the sheet and a second attitude where the shutter member permits the sheet to pass therethrough, and a loop abutting portion against which a loop portion of the sheet formed while the sheet is conveyed by the first sheet conveying apparatus, wherein the loop portion of the sheet whose leading end is abut against the shutter member moves the shutter member from the first attitude to the second attitude by a force pressing the loop abutting portion.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: March 26, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Jiro Shirakata
  • Patent number: 8403317
    Abstract: A sheet conveyance device comprises first and second sheet parallel conveyance paths each having first and second conveyance roller units each to receive and convey a sheet and first and second skew correctors each to correct skew of a sheet therein. A third conveyance path is disposed downstream of the first sheet conveyance path and the second sheet conveyance path, in which those sheet conveyance paths flow into each other. The sheet conveyance device alternately conveys the sheet to first sheet conveyance path and the second sheet conveyance path. One of the first pair of sheet conveyance rollers is one of the second pair of sheet conveyance rollers as a common roller.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: March 26, 2013
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiromichi Matsuda
  • Patent number: 8348266
    Abstract: The skew-feeding correcting apparatus of the present invention includes an abutment portion which is disposed to a conveying path to convey a sheet and to which a top end of the sheet is abutted to correct skew feeding of the sheet, a movement portion which moves the abutment portion in a sheet width direction perpendicular to a sheet conveyance direction, and a controller which controls driving of the movement portion to move the abutment portion to a position where a corner part of the sheet is not to be abutted to the abutment portion before the top end of the sheet is abutted to the abutment portion.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: January 8, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kohei Deno
  • Patent number: 8342519
    Abstract: A sheet conveying device includes a blocking member having a blocking surface with which a leading end of a sheet that is being conveyed comes into contact for obliquity correction. The blocking member is rotated by being pushed by the sheet against an urging force of a positioning unit that positions the blocking member to be in the standby position. The blocking member is rotatable to be in a sheet-passage-allowing orientation in which the sheet is allowed to pass. When a trailing end of the sheet that is being conveyed has passed the blocking member, the blocking member that is in the sheet-passage-allowing orientation rotates in a same direction as a sheet conveyance direction and is positioned to be in a standby position.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: January 1, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Watanabe, Minoru Kawanishi, Motohiro Furusawa, Hiroki Yamaguchi, Shigeo Murayama
  • Patent number: 8336879
    Abstract: A sheet feeding apparatus which includes a sheet loading tray for stacking sheets; a suction and conveyance section which is placed above stacked sheets on the sheet loading tray and sucks and conveys a sheet in the sheet conveying direction; an air blowing section which blows air at the stacked sheets on the sheet loading tray and causes the sheet to float up; and a skew correction section which corrects a skew of the sheet conveyed by the suction and conveyance section.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: December 25, 2012
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Tomoo Suzuki, Akira Kosugi, Daisuke Ueda
  • Patent number: 8317192
    Abstract: A sheet conveyance unit includes first and second conveyance rollers facing each other, a first stopper provided at an axial end portion of the first conveyance roller, projecting radially beyond a circumferential surface of the first conveyance roller, downstream rollers positioned downstream from the first and second conveyance rollers in a sheet conveyance direction, an engaging and disengaging unit to disengage the first and second conveyance rollers from each other, and a controller. The first stopper rotates to a contact position projecting into the sheet conveyance path and to a non-contact position away from the sheet conveyance path as the first conveyance roller rotates. The first stopper moves to the non-contact position after stopping a sheet. The first and second conveyance rollers are disengaged from each other after a leading end of the sheet reaches the downstream rollers, before the first stopper moves to the contact position.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: November 27, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuji Karikusa, Junji Shirakawa, Yutaka Shoji
  • Patent number: 8141870
    Abstract: A method for moving a media sheet within an imaging device includes moving a media sheet along a media path past a predetermined point PP on the media path by rotating a roller. After moving the media sheet past the point PP, a processor monitors whether a performance attribute of a component of the imaging device satisfies a predetermined criteria. After the performance attribute of the component of the imaging device satisfies the predetermined criteria, the media sheet is entered into a feed nip in a substantially deskewed alignment.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: March 27, 2012
    Assignee: Lexmark International, Inc.
    Inventors: Paul Edward Griese, Patrick Lawrence Ransom, Bonnie Billy Lim Sy
  • Patent number: 8047544
    Abstract: A printing apparatus includes a holding section connected to a downstream end of a main transfer path for consecutively transferring paper sheets and formed of a curved transfer path, which consecutively transfers the paper sheets led out from the main transfer path in a curved state and holds them in an overlaid state.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: November 1, 2011
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventor: Toshiharu Sekino
  • Patent number: 7722039
    Abstract: A cam unit includes three cams fixed on a common cam shaft for moving a pair of feeding rollers, a pair of lateral registration rollers, and a stopper unit, respectively. A control unit corrects a lateral registration of a sheet whose skew is corrected by the stopper unit, based on a detection result of a detecting unit that detects a position of a side edge of the sheet, while conveying the sheet, controls the rollers not nip the sheet at least during the lateral registration, and controls rotations of the cams according to a length of the sheet.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: May 25, 2010
    Assignee: Ricoh Company, Limited
    Inventors: Yutaka Shoji, Junji Shirakawa, Takayuki Muneyasu
  • Patent number: 7681882
    Abstract: A de-skew mechanism, in an image forming device, with a correcting member disposed in a rotatable manner to the rotary shaft and turning with driving roller by a spring between them. A torque spring suppresses the turning of the correcting member to correct the skew of the medium. When conveyed, the medium will butt against the correcting member to be stopped and corrected. The medium conveying force and the force that the spring brings to the driving roller are sufficient for turning the correcting member and passing therethrough. At one time, the force that the correcting member brings to the medium will reduce to zero. As such, the medium will not be damaged by the correcting member while being conveyed.
    Type: Grant
    Filed: May 25, 2008
    Date of Patent: March 23, 2010
    Assignees: Silitek Electronic (Guangzhou) Co., Ltd., Lite-On Technology Corp.
    Inventors: Chang-Lung Yu, Chen-Tsai Tsai, Hsueh-Chou Hsu, Tien-Ho Hsu
  • Patent number: 7631868
    Abstract: A retractable scuffer includes an arm with foldaway drive wheels connected thereto that are independently pivotable to ensure even drive force on a sheet. The drive wheels flips down in a counter clockwise direction as the scuffer arm is driven to an extended position by a lead screw mechanism. This provides a shallow angle of contact with the sheet and allows the sheet to be pulled against a registration gate by the drive wheels versus being pushed, thereby eliminating unwanted reaction forces inherent in existing systems that push a sheet against a registration gate.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: December 15, 2009
    Assignee: Xerox Corporation
    Inventor: Brian J. Dunham
  • Patent number: 7584960
    Abstract: A registration device usable with an image forming apparatus includes a registration roller, a registration lever to rotate between an alignment position to block and align a leading edge of a paper sheet supplied to the registration roller and an opening position to allow the paper sheet to be fed beyond the registration lever, and a resilient member to resiliently urge the registration lever to rotate into the alignment position. The resilient member has a center portion and first and second arms extending from the center portion. An end of the first arm is coupled to the registration lever and the resilient member is pivotable about an end of the second arm.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: September 8, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-woo Ha
  • Patent number: 7566052
    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: Grant
    Filed: July 9, 2007
    Date of Patent: July 28, 2009
    Assignee: Lite-On Technology Corp.
    Inventors: Tien-Ho Hsu, Hsuan-Yang Lin, Chung-Lung Yu, Yu-Jen Tsao
  • Patent number: 7467793
    Abstract: On a paper path in a photo printer, a skew corrector is provided to correct skew of recording sheets simultaneously in two lines. The skew corrector consists of a first conveyer roller pair, a second conveyer roller pair and a strike guide. The recording sheets are conveyed by the first conveyer roller pair after their leading edges strike on the strike guide, to bend the recording sheets flexibly between the first conveyer roller pair and the strike guide, thereby to correct skew of each recording sheet. A necessary transport amount for correcting the skew of the recording sheet is calculated on each line based on detection signals from photo sensors, which are disposed between the first and second conveyer roller pairs, and a width of the recording sheet. The recording sheets of the respective lines are conveyed by the largest necessary transport amount among the calculated ones.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: December 23, 2008
    Assignee: FUJIFILM Corporation
    Inventor: Tsuyoshi Tanabe
  • Patent number: 7261292
    Abstract: In a method and an apparatus for feeding sheets to a sheet-processing machine, the leading edge of the sheet is smoothed before the grippers are closed by further transport into the sheet-processing machine. A curvature or bend in the sheet transport direction is imparted to the sheet. The feed table has, in its feeder region, a curvature in the sheet transport direction, against which curvature the sheet leading edge is laid with the aid of pneumatic or mechanical devices.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: August 28, 2007
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Hans Butterfass, Wolfgang Dolz, Hendrik Frank, Andreas Henn, Markus Möhringer
  • Patent number: 7201371
    Abstract: The invention is an automatic paper-feeding structure, which includes: a lifting member, which is arranged at the paper-feeding side of this automatic paper-feeding structure, and on which plural document papers are supported, and which may make the plural document papers skewed to one side and lifted up; a paper-taking member, of which face generates frictional force to the first paper of the document to make the first paper touched by the member's face be fed into the interior of the paper-feeding structure by the paper-taking member; a paper-separating member, which is with the paper-taking member to generate the squeezing function onto the papers and is able to separate the paper, such that the first paper on the document may be separated from other papers thereunder; a paper-feeding member, which receives the papers delivered from the paper-taking member and generates necessary interaction with the paper-separating member and the de-skewing member; a de-skewing member, which makes a de-skewing and delive
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: April 10, 2007
    Assignee: BENQ Corporation
    Inventor: Wen-Jen Lu
  • Patent number: 7063472
    Abstract: A sheet skew correcting apparatus, incorporated in a printer or the like to correct a phenomenon of obliquely feeding a sheet called skewing. The apparatus includes a transporting path in which the sheet is transported, a pair of registration rollers, a pair of timing rollers disposed upstream from the registration rollers, and a paper guide having a first and a second curved portion and constituting the transporting path. When a sheet fed into the transporting path abuts against a contact point of a registration roller pair, the sheet is further transported by an arbitrary distance in the sheet transporting direction. First and second curves are then formed in the sheet in the first and second curved portions. Then the registration roller pair is rotated in the direction opposite to the sheet transporting direction, the front end of the sheet uniformly abuts against the contact point of the registration roller pair to correct skew.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: June 20, 2006
    Assignee: Ricoh Printing Systems, Ltd.
    Inventors: Michihiro Matsuda, Yasushi Hashimoto, Shingo Takai, Hiroshi Suzuki
  • Patent number: 6969065
    Abstract: A sheet transport apparatus includes the first transport rollers, the second transport rollers arranged at downstream of the first transport rollers to receive a sheet transported from the first transport rollers, a spacing device for setting the first transport rollers to a sheet nipping state or a sheet released state, a sheet detection device for detecting a sheet length in a transport direction, and a comparing device for comparing the sheet length detected by the sheet detection device with a predetermined length. It is controlled such that the spacing device is activated to switch the first transport rollers from a sheet nipping state to a sheet released state after the sheet is transported by a predetermined distance when the sheet length is longer than the predetermined length, and to maintain the first transport rollers in the sheet nipping state when the sheet length is shorter than the predetermined length.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: November 29, 2005
    Assignee: Nisca Corporation
    Inventors: Hidemi Inoue, Satoru Matsuki, Hidetoshi Kinoshita
  • Patent number: 6921070
    Abstract: A method of feeding sheets to a printing-technology machine includes individually separating sheets from a sheet pile, conveying the sheets against movable lays for effecting an alignment thereof, and cyclically conveying the sheets from the lays to the machine. A control device coordinates movement of the lays with the individual separation of the sheets from the sheet pile and onward conveyance of the sheets to the machine. Data related to characteristics of the sheets are processed in the control device for generating actuating signals for a separate, controllable drive system. The lays are moved by the drive system. A device for performing the method is also provided.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: July 26, 2005
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Christopher Berti, Bernhard Buck
  • Patent number: 6805347
    Abstract: The skew of a sheet of print media is precisely controlled by intentionally inducing print media deformation, so that cooperative mechanical and gravitational forces may be used to align the leading edge of the sheet. The sheet is driven into a nip region of deskew rollers in a manner that causes the print media to deform, lifting a movable member in a direction substantially perpendicular to the feedpath into the nip region. The movable member applies a return force that is generally equal along a widthwise surface region of the print media. As a result, there is a reduced likelihood that the print media will be skewed relative to the nip region. In some applications, the return force is adjustable.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: October 19, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Akinobu Kuramoto
  • Patent number: 6755411
    Abstract: A module in an envelope insertion station for transporting an envelope to an enclosure material insertion location, which uses endless belts to move the envelope until it is stopped by rotatable stops. A fixedly-mounted vacuum module having vacuum ports provides a suction force to the envelope urging the trailing edge of the envelope to press against the belts and provides the normal force required to move an envelope downstream as it enters the insertion deck without slippage against the translating endless belts. Additionally, a second vacuum module having vacuum ports provides suction force urging the leading edge of the envelope to press against the belts and provides the normal force required to prohibit the leading edge of the envelope from buckling during impact with the rotatable stops. The second vacuum module is removably mounted and mechanically linked to the rotatable stops so they can be repositioned together to accommodate different-sized envelopes.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: June 29, 2004
    Assignee: Pitney Bowes Inc.
    Inventors: Karel J. Janatka, Boris Rozenfeld, John W. Sussmeier, Joseph R Vassallo
  • Patent number: 6749192
    Abstract: A media feed mechanism includes a picking device, a first feedroller and a second feedroller. The picking device picks a sheet of media from a media source. The first feedroller moves the sheet of media along a feed media path. During a skew correction phase, the first feedroller rolls in a forward direction feeding the sheet of media forward and the second feedroller turns in a reverse direction preventing the sheet of media from progressing past a nip of the second feedroller. This results in skew correction. After skew correction is performed, the second feedroller turns in the forward direction advancing the sheet of media for printing.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: June 15, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Allan G. Olson, R. Scott Smith, Daniel J. Magnusson, Kieran B Kelly
  • Patent number: 6681697
    Abstract: A device for aligning sheets on a feeder of a sheet-processing machine includes a plurality of pivotably disposed front lays and a plurality of pivotably disposed top lays, the top lays being vertically adjustable. The front lays and the top lays are respectively assigned to and combined with one another and have a common pivoting drive. A push rod vertically adjusts the top lays, and a wedge-like slide actuates the push rod.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: January 27, 2004
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Markus Möhringer, Jochen Renner
  • Patent number: 6598870
    Abstract: A document conveying apparatus comprising a document conveying passage and a pair of document introduction rollers disposed at a document insertion portion, and a copier equipped with the document conveying apparatus. A cover frame is pivotably supported by the support frame body of the document conveying apparatus. A shutter member is supported by the support frame body so as to move up and down between a shut-off position and an open position. The cover frame and the shutter member are interlocked to each other so that the shutter member is moved up to the open position when the cover frame is turned to the closed position and the shutter member is moved down to the shut-off position when the cover frame is turned to the open position.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: July 29, 2003
    Assignee: Kyocera Mita Corporation
    Inventor: Susumu Hanano
  • Patent number: 6598873
    Abstract: A pickup roller is movable in a vertical direction and pulls out papers to the paper feed rollers, is provided. The pickup roller moves down towards the papers stacked on the paper tray. A front edge alignment member that aligns the front edge of the papers and a stopper that controls rotation of the front edge alignment member engages the front edge alignment member. A stopper release member pivots the stopper to release it from the front edge alignment member in synchronization to the up and down movement of the pickup roller.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: July 29, 2003
    Assignee: Panasonic Communications Co., Ltd.
    Inventors: Masahiro Takisawa, Takahisa Araki
  • Patent number: 6592120
    Abstract: An apparatus for registering a signature moving along a surface, such as a drum, includes one or more pinch rollers for advancing the signature, and a register stop for stopping the advancement of the signature. The register stop is rotatable about an axis so as to accommodate skewing of the signature. The pinch rollers do not rotate with the register stop, but remained aligned with the drum.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: July 15, 2003
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Mehmet Oktay Kaya, Heiner Philipp Luxem
  • Patent number: 6481709
    Abstract: Device (1) for the longitudinal alignment of plate elements (2) within an infeed station of a machine working them. The aforementioned device is secured by two lateral brackets (9, 10) between which is settled a conveyor track for the said plate elements, comprising two plates (5, 6) folded downwise according to a line (7) non-perpendicular in the meaning of the shifting (3) of the said plate elements (2). The latter are moved downstream by means of at least two conveyor belts running around at least two pulleys (15, 16) secured between unmovable bearings (11-14) at the input of the said device. The device (1) has on its leading edge a protection plate (39) over which are flaps (30-32) movable and interdependent of a transverse shaft (24) connecting the leading edges of the two lateral brackets (9, 10). This shaft is moved by an alternate rotation between 0 and 45 degrees, synchronized with the production speed of the machine in order to allow the successive alignment of the said plate elements (2).
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: November 19, 2002
    Assignee: Bobst S.A.
    Inventors: Georges Gombau, Patrick Lüscher
  • Patent number: 6299160
    Abstract: An imposition printer and associated method. The printer can disengage its rollers from a print substrate feed path, deploy a pair of registration stops, and align a print substrate by engaging the print substrate with the stops. The rollers can then engage the substrate in an aligned position, and the registration stops can be retracted. After they are engaged, the same rollers can advance the substrate as a deposited ink drop print head deposits ink on it.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: October 9, 2001
    Assignee: Iris Graphics, Inc.
    Inventors: Jeff Tobin, Robert Bullock
  • Patent number: 6293537
    Abstract: A device of aligning or arranging a paper in a printer comprising a transport part including feed roller and pinch roller, and which transports or counter-transport a paper between the rollers; a pickup roller which supplies a sheet of papers of paper load cassette to the roller; a paper feed plate providing the pressure for the frictional power to pick up a paper; and one-way clutch for preserving frictional power between a pickup roller and a paper when the feed roller which drives the pickup roller rotates in a counter direction.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: September 25, 2001
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jin-Ho Park
  • Patent number: 6142467
    Abstract: A sheet feeder in a printer has a sheet loader, a pickup roller for feeding a cut sheet from the sheet loader, and a sheet feed roller for feeding the cut sheet supplied from the pickup roller for printing thereon data by a printing head. The pickup roller first feeds the cut sheet toward the sheet feed roller which rotates in a reverse direction, whereby the leading edge of the cut sheet is abut to the sheet feed roller. The pickup roller is then stopped and released from the cut sheet whereby a skew of the cut sheet is corrected. Subsequently, the sheet feed roller rotates in the forward direction to feed the cut sheet.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: November 7, 2000
    Assignee: NEC Corporation
    Inventor: Takumi Funada
  • Patent number: 6062559
    Abstract: An automatic document feeder of a type having a document inverting mechanism beside a document sending-in path is disclosed which, when a document located at a document exposure position is to be inverted, operates a conveying belt mechanism in a predetermined direction to convey the document by a predetermined amount in a direction away from a document positioning member, then brings a document positioning member to a retreat position, and then operates the conveying belt mechanism in a direction opposite to the predetermined direction to convey the document to the document inverting mechanism.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: May 16, 2000
    Assignee: Mita Industrial Co., Ltd.
    Inventors: Toru Tanjo, Jun Kusakabe, Hiroshi Kobayashi, Kazuhisa Kondo, Hiroyuki Harada, Masahiro Sako