Including Conveyor Couple Patents (Class 271/3.2)
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Patent number: 12049375Abstract: A sheet feeding apparatus includes an opening/closing unit including a stacking portion, a moving unit including a feed roller and a moving member supporting the feed roller, an urging portion, and a transmitting portion to transmit urging force of the urging portion to the moving member. The opening/closing unit presses and moves the moving unit in the second direction against the urging force while the opening/closing unit moves from the open position to the closed position. A force that the opening/closing unit receives from the moving unit in a state where the opening/closing unit is at the closed position is smaller than a maximum force that the opening/closing unit receives from the moving unit that is urged in the first direction by the urging portion while the opening/closing unit moves from the open position to the closed position.Type: GrantFiled: October 8, 2021Date of Patent: July 30, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Tomoya Tateishi, Kazuhiro Hosohara
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Conveying device, liquid discharge apparatus, image forming apparatus, and post-processing apparatus
Patent number: 11472205Abstract: A conveying device includes a plurality of rotating bodies and a plurality of projecting rotators. The rotating bodies are spaced apart in a sheet conveyance direction in which a sheet is conveyed. The projecting rotators are spaced apart in the sheet conveyance direction on a side of an opposite face opposite a liquid applied face of the sheet. Each of the projecting rotator has a plurality of projections projecting radially outward. The rotating bodies are arranged to contact the projecting rotators. A contact pressure of the rotating bodies with the projecting rotators is smaller on an upstream side than on a downstream side in the sheet conveyance direction. One of an interval between the rotating bodies in the sheet conveyance direction and an interval between the projecting rotators in the sheet conveyance direction is smaller on the upstream side than on the downstream side in the sheet conveyance direction.Type: GrantFiled: December 22, 2020Date of Patent: October 18, 2022Assignee: RICOH COMPANY, LTD.Inventor: Yasuhiro Fujiwara -
Patent number: 10464764Abstract: A paper sheet storing/feeding device (e.g., escrow unit 40) includes a rotary member (e.g., drum 42) to an outer peripheral surface of which one end of a belt-shaped winding member (e.g., tapes 90, 92, 94) that winds a plurality of paper sheets one by one is connected, and a guiding unit (80, 85) that guides a paper sheet to prevent the paper sheet from sandwiching the winding member from both sides when the paper sheet is fed from the rotary member by unwinding the winding member from the rotary member.Type: GrantFiled: September 11, 2015Date of Patent: November 5, 2019Assignee: GLORY LTD.Inventor: Takeshi Yokawa
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Patent number: 9332144Abstract: An image forming apparatus including an automatic document feeder (ADF) that transports a document is provided. The ADF unit includes a subtray that is openable and closable. When transporting a document, the subtray is opened and a document to be transported is fed into a space below a guide member. At this time, surfaces of the subtray and a main tray are used as a feed tray. The document that has been transported is discharged onto a guide member and is further transported onto the surface of the second tray. At this time, the surface of the second tray and the surface of the guide member are used as a discharge tray.Type: GrantFiled: December 16, 2011Date of Patent: May 3, 2016Assignee: Brother Kogyo Kabushiki KaishaInventors: Daisuke Kozaki, Takeru Morinaga
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Patent number: 9315349Abstract: There is provided a feed apparatus including: a fixed support unit having a first support surface configured to support a sheet; a movable support unit having a second support surface configured to support the sheet and configured to move to a first position where the first support surface and the second support surface form one flat surface substantially and to a second position where the second support surface intersects with the first support surface with respect to the fixed support unit; a feed roller configured to feed the sheet supported by the second support surface of the movable support unit positioned at the first position and the first support surface in a feed direction; an arm having one end portion configured to rotatably support the feed roller and the other end portion configured to be swingable with respect to a shaft provided in the fixed support unit; and a separating pad provided at a position, being a position, of the first support surface, including the end on the second support surfaceType: GrantFiled: March 26, 2015Date of Patent: April 19, 2016Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventor: Yuta Uchino
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Patent number: 9247086Abstract: A document reader is provided that includes a document table at least part of which is configured to swing around a first axis, between a first position to function as the document table and a second position to be more slanted with respect to a first guide than when in the first position, a swing portion configured to form a part of a feeding surface forming a second guide and configured to swing around a second axis, between a third position to function as the second guide and a fourth position to expose a part of a feeding path that is formed by the second guide to the outside of the document reader, and a switching mechanism for swinging the swing portion from the third position to the fourth position with the swing motion of the at least part of the document table.Type: GrantFiled: September 23, 2014Date of Patent: January 26, 2016Assignee: Brother Kogyo Kabushiki KaishaInventor: Takashi Fujiwara
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Publication number: 20150145197Abstract: An image forming apparatus includes an image forming unit, a sheet receiving portion, an ejection roller, and a restriction member. The ejection roller is configured to rotate in a forward direction to eject a recording sheet fed from the image forming unit to the sheet receiving portion, and to rotate in a reverse direction to return the recording sheet to the image forming unit. The restriction member is configured to move between a restriction position where the restriction member protrudes farther in a sheet ejection direction than a peripheral surface of the ejection roller and a retracted position where the restriction member is retracted from the restriction position. The ejection roller is configured to move the restriction member to the restriction position by rotating in the forward direction, and to move the restriction member to the retracted position by rotating in the reverse direction.Type: ApplicationFiled: November 26, 2014Publication date: May 28, 2015Inventor: Wei Zhang
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Patent number: 9039004Abstract: There is provided a transport system including: a transport mechanism including first and second rollers; first and second driving devices; first and second measuring devices configured to measure a state quantities Z1 and Z2; and a controller configured to control the first and second driving devices. The controller is configured to perform: estimating reaction forces R1 and R2; calculating control inputs U1 and U2; inputting, to the first driving device, a control signal in accordance with a sum of the control input U1 and the control input U2; inputting, to the second driving device, a control signal in accordance with a difference between the control input U1 and the control input U2; estimating non-tensional components RE1 or RE2; and correcting the control input U2 to prevent a control error caused by the non-tensional components RE1 and RE2 included in an estimated tension of the sheet (R1?R2)/2.Type: GrantFiled: June 19, 2014Date of Patent: May 26, 2015Assignee: Brother Kogyo Kabushiki KaishaInventor: Kenichi Iesaki
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Publication number: 20150137443Abstract: In a cross section perpendicular to an axial direction of a discharge roller, a rotation center of the discharge roller is provided at a position out of a straight line that connects a rotation center of a discharge driven roller and a rotation center of a duplex driven roller. The discharge roller that receives forces from the discharge driven roller and the duplex driven roller is held by a discharge roller presser.Type: ApplicationFiled: November 13, 2014Publication date: May 21, 2015Inventor: Daisuke Yamamoto
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Patent number: 9016689Abstract: A sheet conveying device includes a housing provided with first and second side surfaces facing each other, and third and fourth side surfaces substantially orthogonal to the first and second side surfaces and facing each other. An entrance port is formed in the first side surface, an exit port is formed in the second side surface, and a sheet conveying path is formed in the housing. The housing includes first and second guide members constituting the sheet conveying path. The first and second guide members are connected to be pivotally movable relative to each other on the side of the third side surface. A gap portion is formed between the first and second guide members in a region from the connection portion on the side of the third side surface to the first side surface.Type: GrantFiled: June 14, 2013Date of Patent: April 28, 2015Assignee: KYOCERA Document Solutions Inc.Inventors: Shuji Osaki, Hironori Daigo, Hiroaki Takai
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Patent number: 9016683Abstract: The present invention provides a method and apparatus for transporting media items along a transport path. The apparatus comprises a first transport member and a further transport member that selectively apply an urging force to at least one media item to urge said media item along a transport path, wherein in a first mode of operation, the urging force is applied to said media item to transport said media item at least partially along the transport path and, in a further mode of operation, the urging force on said media item is released to allow at least one end region of the media item to move freely along the transport path.Type: GrantFiled: July 30, 2013Date of Patent: April 28, 2015Assignee: NCR CorporationInventor: Matthew Sonnenberg
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Publication number: 20150108705Abstract: A transport mechanism includes a transport path along which a recording medium is transported, a contact member with which a leading end of the recording medium, which is to be transported along the transport path, is brought into contact, the contact member being capable of moving to a contact position at which the leading end of the recording medium is brought into contact with the contact member or to a retracting position at which the contact member retracts from the transport path, a transport member that transports the recording medium, which has been brought into contact with the contact member, to downstream in a transport direction of the recording medium while rotating in a normal direction, and a rotational force transmission member that transmits a rotational force of the transport member to the contact member and causes the contact member to move to the contact position or the retracting position.Type: ApplicationFiled: April 30, 2014Publication date: April 23, 2015Applicant: FUJI XEROX CO., LTD.Inventors: Yasuhiro KAMIJO, Toshitaka TANAKA
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Publication number: 20150098741Abstract: An image forming apparatus includes an image forming unit configured to form an image on a sheet, a duplex conveyance path through which the sheet having the image formed by the image forming unit on a first side passes when an image is formed on a second side that is a back side of the first side, a guiding member provided along the duplex conveyance path, a reversing roller pair capable of rotating in a forward direction and in a reverse direction, h, and a conveyance roller pair provided on the duplex conveyance path, wherein at least one of the reversing roller pair is inclined to the width direction so that, in the width direction, the side end of the sheet being conveyed by the reversing roller pair rotating in the reverse direction moves closer to the contact portion.Type: ApplicationFiled: October 7, 2014Publication date: April 9, 2015Inventor: Terutaka Endo
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Publication number: 20150091234Abstract: An image reading device includes a conveyor which conveys a sheet from an upper path to a lower path through a curved path. The conveyance section includes a feed roller which is disposed at the upper path and feeds the sheet, a separation roller which is disposed at the upper path and separates the sheet in conjunction with a separator, and a conveying roller which conveys the sheet along the curved path. The lower path includes a horizontal path extending in a substantially horizontal direction. The separator includes a flat plate portion having a flat plate shape, and the flat plate portion is disposed above the horizontal path and is arranged in a substantially horizontal direction. The separation roller is disposed above the separator.Type: ApplicationFiled: September 25, 2014Publication date: April 2, 2015Inventor: Katsuro Miura
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Publication number: 20150091235Abstract: A sheet conveying device is provided in a paper sheet discharge portion of an image forming apparatus. The sheet conveying device includes, inside thereof, a pair of conveyance guides forming a curved path. A stiffening member is attached to an upper conveyance guide. The stiffening member includes a first pressing portion on the downstream side in the conveyance direction, and a guide portion on the upstream side. The first pressing portion is positioned at a lower position than a nip portion of a pair of discharge rollers. The guide portion is positioned at an upper position than the nip portion. The guide portion is narrower in the width direction than the first pressing portion.Type: ApplicationFiled: September 26, 2014Publication date: April 2, 2015Inventor: Terumitsu Noso
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Publication number: 20150084263Abstract: A sheet supply device includes a medium loading part that includes a medium loading surface on which medium is loaded; and a medium supply part that is arranged facing the medium lading surface, and sandwiches the medium with the medium loading part applying a pressure to the medium, and sends the medium loaded in the medium loading part in a predetermined carrying direction. The medium loading part includes a first friction member arranged in a position facing the medium supply part so that the first friction member contacts the medium supply part when there is no medium on the medium loading part, and a second friction member arranged on an upstream side of the first friction member in the carrying direction, and a friction coefficient (?d) between the second friction member and the medium is larger than a friction coefficient (?c) between the first friction member and the medium.Type: ApplicationFiled: September 19, 2014Publication date: March 26, 2015Inventor: Naoki KANZAWA
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Patent number: 8985569Abstract: A document conveyance device includes: a reader reading a document-sheet passing on a contact glass; a white plate being placed opposite to the contact glass; a first conveyance roller and a first driven roller placed upstream of the reader in a sheet conveying direction; a second conveyance roller and a second driven roller placed downstream of the reader in the sheet conveying direction; a holding member configured to hold rotatably the first and second driven roller; a spacer configured to support the holding member and include one or more of support planes different in height; wherein a support plane selected from the one or more support planes in accordance with a thickness of the document-sheet is moved manually to support the holding member, and the white plate is configured to lift upward from the contact glass plate by a forehead of the sheet passing through the contact glass plate.Type: GrantFiled: March 18, 2014Date of Patent: March 24, 2015Assignee: Ricoh Company, LimitedInventor: Kenji Takayama
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Patent number: 8973913Abstract: To easily replace a retard roller (that is a media separation roller) while minimizing the required installation space, a printer 1 has a first media conveyance path 12 that conveys sheet media; a second media conveyance path 29 that conveys media and can open and close; a media conveyance roller 17 and a retard roller 16 disposed opposite each other with the first media conveyance path 12 therebetween; and a roller installation unit 70 to which the retard roller 16 is installed removably from the second media conveyance path 29 side. The retard roller 16 can be easily replaced from the open second media conveyance path 29. Compared with a configuration having a dedicated opening, a smaller opening and space for replacing the media separation roller are required.Type: GrantFiled: February 12, 2014Date of Patent: March 10, 2015Assignee: Seiko Epson CorporationInventors: Hiroyuki Masubuchi, Toshihiro Imae
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Publication number: 20150061207Abstract: There is provided a transport system including: a transport mechanism including first and second rollers; first and second driving devices; first and second measuring devices configured to measure a state quantities Z1 and Z2; and a controller configured to control the first and second driving devices. The controller is configured to perform: estimating reaction forces R1 and R2; calculating control inputs U1 and U2; inputting, to the first driving device, a control signal in accordance with a sum of the control input U1 and the control input U2; inputting, to the second driving device, a control signal in accordance with a difference between the control input U1 and the control input U2; estimating non-tensional components RE1 or RE2; and correcting the control input U2 to prevent a control error caused by the non-tensional components RE1 and RE2 included in an estimated tension of the sheet (R1?R2)/2.Type: ApplicationFiled: June 19, 2014Publication date: March 5, 2015Applicant: Brother Kogyo Kabushiki KaishaInventor: Kenichi Iesaki
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Publication number: 20150054212Abstract: According to one embodiment, a sheet discriminating device includes a first conveying structure and a second conveying structure that are arranged at a predetermined distance from each other in a conveying direction of a sheet and that are configured to convey the sheet, and an information detecting means that is provided between the first conveying structure and the second conveying structure such that a detection range thereof is not blocked, and that is configured to detect information from the sheet.Type: ApplicationFiled: August 19, 2014Publication date: February 26, 2015Inventors: Hiroaki Fujihara, Seiji Ikari, Tomonori Makino, Masakazu Itoya, Masahiro Nagao, Naoki Hori, Junji Miura
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Publication number: 20150035217Abstract: A recording apparatus includes: a recording section that performs recording on a recording medium; a driving roller disposed in a transportation path; a plurality of driven rollers driven to rotate by abutting against the driving roller, and biased to the driving roller; and a frame defining positions of the driven rollers. A biasing member that biases driven rollers applies a biasing force including a first direction component that is in the transportation direction to the frame in a state of being mounted thereon. At least a part of the driven rollers are disposed by being deviated in the position thereof in a second direction opposite to the first direction in a state where the biasing member is not mounted thereon.Type: ApplicationFiled: July 31, 2014Publication date: February 5, 2015Inventors: Kensuke TAMAI, Hidefumi MINEMURA
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Publication number: 20150008636Abstract: An image forming apparatus includes a first roller to come into contact with a first side of a recording medium and a second roller and a third roller to come into contact with a second side of the recording medium opposite the first side. Each of the first roller, the second roller, and the third roller includes a plurality of increased diameter portions and a plurality of decreased diameter portions alternately arranged in an axial direction of each of the first roller, the second roller, and the third roller to produce an uneven outer circumferential surface thereof. The increased diameter portions of the first roller overlap the increased diameter portions of each of the second roller and the third roller, respectively, with a clearance therebetween.Type: ApplicationFiled: June 18, 2014Publication date: January 8, 2015Applicant: RICOH COMPANY, LTD.Inventor: Masaaki Tsuda
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Publication number: 20150008637Abstract: A sheet conveying device includes: first, second and third rollers, a conveying member, a frame, a first pressing member, and a force-generating unit. The first and second rollers rotate while nipping the sheet therebetween. The third roller and the conveying member nip the sheet therebetween. The frame is elongated parallel to an axis about which the third roller rotates and supports the third roller. The first pressing member applies a first pressing force to an axial center of the first roller to press the first roller toward the second roller and applies a reaction force of the first pressing force to the frame to press the frame in a direction toward the conveying member. The force-generating unit generates a nipping force for nipping the sheet between the third roller and the conveying member and applies an urging force to the frame in a direction away from the conveying member.Type: ApplicationFiled: June 27, 2014Publication date: January 8, 2015Inventor: Hiroshi ICHIKAWA
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Publication number: 20140353901Abstract: An image forming apparatus includes an image forming unit, a first guide, a switchback roller, a second guide, and a corrugation member. The corrugation member has a shape for producing a recessed portion and a ridge portion in a sheet. The second guide has a first guide surface and a second guide surface disposed to contact the recessed portion and the ridge portion of the sheet, respectively. As viewed from a downstream side of the switchback roller in a sheet ejection direction along a tangent to the switchback roller at a nip position, a distance between an end of the first guide closest to the switchback roller and an end of the second guide surface closest to the switchback roller is greater than a distance between the end of the first guide closest to the switchback roller and an end of the first guide surface closest to the switchback roller.Type: ApplicationFiled: May 30, 2014Publication date: December 4, 2014Applicant: Brother Kogyo Kabushiki KaishaInventor: Masanori Aoyama
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Publication number: 20140232054Abstract: A conveying device includes: a conveyor for conveying a sheet; a path defining member having a first conveying surface that guides the sheet; and a sensor device for sensing the sheet. The sensor device includes: a sensor casing provided on the path defining member and including a second conveying surface that guides the sheet and a main wall whose outer surface is exposed from the path defining member and contiguous to the first conveying surface; a movable member including (i) a contact portion projecting to a second-conveying-surface side of the main wall through an opening formed in the main wall and (ii) a sensed portion located in the sensor casing and moved by the sheet conveyed on the second conveying surface while contacting the contact portion; and a signal output device, provided in the sensor casing, for sensing the sensed portion to output a signal related to its position.Type: ApplicationFiled: February 13, 2014Publication date: August 21, 2014Applicant: Brother Kogyo Kabushiki KaishaInventors: Yasuhira OTA, Masao Mimoto, Iwane Sano, Keisuke Wakakusa, Jie Xiu, Noriyuki Kawamata, Shingo Ito
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Patent number: 8720886Abstract: A sheet conveying apparatus which conveys a sheet, including: a first conveying path along which the sheet is conveyed; a second conveying path along which the sheet is reconveyed to the first conveying path; a reverse conveyance roller pair, which performs forward rotation to convey the sheet from the first conveying path and reverse rotation to convey the sheet to the second conveying path; a reconveying roller pair disposed in the second conveying path; and a control portion which causes the reconveying roller pair to nip a preceding sheet and a succeeding sheet in an overlaid manner, and thereafter rotates a first roller that is in contact with the preceding sheet while stopping rotation of a second roller that is in contact with the succeeding sheet so that the preceding sheet is conveyed to the first conveying path and the succeeding sheet stays in the second conveying path.Type: GrantFiled: October 5, 2011Date of Patent: May 13, 2014Assignee: Canon Kabushiki KaishaInventors: Akira Kuroda, Atsushi Ogata
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Publication number: 20130320608Abstract: An image forming apparatus including: first to third rotators, rotated in accordance with an image forming operation of an image forming section; a first motor driving the first and third rotators; a second motor driving the second rotator; a first switch switching between a connected state in which a driving force from the first motor is transmitted to the third rotator, and a disconnected state in which the driving force from the first motor is not transmitted to the third rotator; and a control device performing a first rotating process of rotating the first rotator by rotating the first motor in the disconnected state, performing a second rotating process of rotating the second rotator by rotating the second motor, and performing a start timing process of providing a difference between start timings of the first and second rotating processes.Type: ApplicationFiled: March 27, 2013Publication date: December 5, 2013Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yuji Tokoro, Yohei Hashimoto
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Patent number: 8590883Abstract: According to one embodiment, a sheet handling apparatus includes a conveying path to convey a sheet, a processing portion to perform a predetermined process on the sheet while conveying the sheet on the conveying path, a separable roller pair that is arranged at a certain distance from the processing portion on an upstream side or a downstream side in conveying direction, the separable roller pair being adapted to hand over the sheet between the conveying path and the processing portion by holding the sheet with a nip and rotating, a separating mechanism to separate the separable roller pair, and a controller that controls the separating mechanism such that the separable roller pair is separated before or after processing is started with the processing portion on a sheet that is conveyed on the conveying path.Type: GrantFiled: September 2, 2011Date of Patent: November 26, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Yukio Asari, Toru Todoriki, Yusuke Mitsuya, Yoshihiko Naruoka, Naruaki Hiramitsu
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Patent number: 8593652Abstract: An image reader includes a path switching part, located at a branch point that switches between a double-sided path and a single-sided path. The double-sided path defines a conveyance route that passes through a reading position from the branch point to enter a conveyance path that causes a document to make a U-turn, and then again passes through the reading position to be discharged to a paper discharge tray. The single-sided path defines a conveyance route that, without passing through the reading position, merges into the conveyance path from the branch point. Along the double-sided path, document detecting sensors provide detection results so that a collision determination part determines a possibility of a collision between documents, and if such a possibility is determined, the path switching part switches the double-sided path to the single-sided path to prevent the documents from colliding head-on with each other in the vicinity of the reading position.Type: GrantFiled: June 21, 2010Date of Patent: November 26, 2013Assignee: Murata Machinery, Ltd.Inventor: Osamu Oshima
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Patent number: 8528902Abstract: A sheet conveying apparatus includes a curve-shaped conveying path conveying a sheet from a first conveyance direction toward a second conveyance direction, a drive conveying portion conveying the sheet in the second conveyance direction by a pair of mutually-pressed rollers, and a belt conveying portion conveying the sheet toward the drive conveying portion by an endless belt member, wherein the belt conveying portion is configured to include a first belt support roller which is arranged coaxially with one of the pair of rollers and a second belt support roller which is arranged at an upstream side of the drive conveying portion from the first belt support roller, to wind the belt member around the first and second belt support members, and to set an outer diameter of the first belt support roller including the belt member to be smaller than an outer diameter of the one roller.Type: GrantFiled: November 30, 2011Date of Patent: September 10, 2013Assignee: Canon Kabushiki KaishaInventor: Hiromasa Katayama
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Publication number: 20120319345Abstract: A recording device including a feed roller that feeds a first and a second sheets sequentially, a first and a second conveying devices that convey the sheets in synchronization, a recording device that records image on the sheets, and a controller, that, after image recording on the first sheet is complete, stops the first and second conveying devices when a trailing end of the first sheet reaches a particular position between the first and the second conveying devices; controls the feed roller to feed the second sheet, such that a leading end of the second sheet contacts a nip of the first conveying device; stops the feed roller after the leading end of the second sheet contacts the nip; and rotates the first conveying device in a reverse direction by an amount of rotation, such that the trailing end of the first sheet does not reach the first conveying device.Type: ApplicationFiled: March 26, 2012Publication date: December 20, 2012Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tetsuo ASADA, Hirotaka AOKI, Yasuhira OTA, Shingo ITO
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Publication number: 20120313313Abstract: A sheet storage apparatus having a sheet conveying portion and a sheet storage portion to receive the sheet as conveyed upward from below by the sheet conveying portion and to store the sheet in a vertical direction. The sheet storage portion includes a guide portion, first and second holding members. The first holding member forms a first nipping portion between the first holding member and the guide surface. The first holding member permits the sheet to be conveyed upward to pass through the first nipping portion, and holds the sheet by restricting the sheet from moving downward at the first nipping portion. The second holding member forms a second nipping portion between the second holding member and the guide surface. The second holding member permits the sheet to be conveyed upward to pass through the second nipping portion, and holds the sheet at the second nipping portion.Type: ApplicationFiled: June 4, 2012Publication date: December 13, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Toshiki Momoka, Daisaku Kamiya, Hideki Kushida, Naoto Tokuma, Toshiyuki Iwata
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Publication number: 20120242029Abstract: In order to provide a sheet conveying apparatus and an image forming apparatus capable of alleviating a bumping noise generated between a sheet and an inner guide member when the sheet passes through a curved sheet conveying path, a pair of intermediate conveying rollers is arranged in positions corresponding to both lateral sides in a width direction of the feeding roller and subsidiary feeding roller in a sheet conveyance direction. In addition, the subsidiary intermediate conveying roller abuts on the intermediate conveying roller with an inclination such that the sheet conveyance force is directed to the center of the sheet conveying path in a width direction. As a result, the sheet makes contact with the inner guide member of the facing guide member of the sheet conveying path by undulating the sheet in a width direction when the sheet is extracted and conveyed by the pair of intermediate conveying rollers.Type: ApplicationFiled: March 16, 2012Publication date: September 27, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Takao Nada, Atsushi Kawarago, Taku Nishikawa
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Patent number: 8256760Abstract: A system for conveying mailpieces along a feed path including first and second conveyances. A first conveyance is operative to convey mailpieces along the feed path and includes a singulating and drive belt. The singulating and drive belts define a throat or singulating a mailpiece from the stack of mailpieces. A second conveyance accepts mailpieces from the first conveyance and conveys singulated mailpiece downstream of the first conveyance. The system further includes a series of sensors extending from the first to the second conveyance for issuing a gap signal indicative of the relative spacing between sequential mailpieces along the feed path. Additionally, the system includes a means to vary the velocity of the drive belt based upon the location of the gap signal along the series of sensors.Type: GrantFiled: September 13, 2010Date of Patent: September 4, 2012Assignee: Pitney Bowes Inc.Inventors: Steven J. DaCunha, Richard F. Stengl, Boris Rozenfeld, Anthony E. Yap
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Publication number: 20120153557Abstract: A sheet conveying apparatus includes a curve-shaped conveying path conveying a sheet from a first conveyance direction toward a second conveyance direction, a drive conveying portion conveying the sheet in the second conveyance direction by a pair of mutually-pressed rollers, and a belt conveying portion conveying the sheet toward the drive conveying portion by an endless belt member, wherein the belt conveying portion is configured to include a first belt support roller which is arranged coaxially with one of the pair of rollers and a second belt support roller which is arranged at an upstream side of the drive conveying portion from the first belt support roller, to wind the belt member around the first and second belt support members, and to set an outer diameter of the first belt support roller including the belt member to be smaller than an outer diameter of the one roller.Type: ApplicationFiled: November 30, 2011Publication date: June 21, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Hiromasa Katayama
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Publication number: 20120104676Abstract: An automatic document feeder includes an upstream conveyance roller pair disposed upstream of an image reader including an upstream driving roller and an upstream driven roller; a downstream conveyance roller pair including a downstream driving roller and a downstream driven roller; an upstream auxiliary roller pair including upstream auxiliary rollers disposed coaxially on a shaft of the upstream driving roller and of the upstream driven roller, respectively, each formed of an elastic member and having a diameter greater than that of the adjacent upstream driving roller and of the adjacent upstream driven roller, respectively; and a downstream auxiliary roller pair including downstream auxiliary rollers each disposed coaxially on a shaft of the downstream driving roller and of the downstream driven roller, formed of a low-hardness elastic member and having a diameter greater than that of the adjacent downstream driving roller and of the adjacent downstream driven roller.Type: ApplicationFiled: October 18, 2011Publication date: May 3, 2012Applicant: Ricoh Company, Ltd.Inventors: Koji Hatayama, Yasunobu Youda, Taku Kudoh, Takayuki Andoh, Yohei Osanai, Satoshi Narai, Takashi Fujii
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Publication number: 20120104678Abstract: An image forming device includes a sheet container, an image former that forms an image on a surface of a sheet conveyed from the sheet container, and a re-conveyor that re-conveys the sheet to the image former which forms another image on an opposite surface of the sheet. The re-conveyor includes a first conveyance roller set and a second conveyance roller set that convey the sheet therebetween. The first conveyance roller set includes a first driving roller that receives a driving force and a first pinch roller that contacts the surface. The second conveyance roller set includes a second driving roller that receives the driving force and a second pinch roller that contacts the surface. The first driving roller has a greater coefficient of friction than the first pinch roller. The second pinch roller has a greater coefficient of friction than the first pinch roller.Type: ApplicationFiled: September 28, 2011Publication date: May 3, 2012Applicant: Brother Kogyo Kabushiki KaishaInventors: Hikaru IINO, Hiroshi NOBE
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Publication number: 20120104675Abstract: An image forming device includes a sheet container unit that stores a plurality of sheets, an image forming unit that forms an image on a particular surface of a sheet that is conveyed from the sheet container unit, and a re-conveying unit that re-conveys the sheet to the image forming unit. The re-conveying unit includes a conveyor roller set that conveys the sheet. The conveyor roller set includes a pinch roller and a driving roller that receives a driving force and that contacts the particular surface of the sheet. The driving roller has a greater coefficient of friction than the pinch roller.Type: ApplicationFiled: September 28, 2011Publication date: May 3, 2012Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Hikaru IINO, Hiroshi NOBE
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Patent number: 8162314Abstract: An image printing apparatus includes a printing unit and a supporting member opposing the printing unit and having a supporting surface for supporting the printing medium. The image printing apparatus further includes a first pair of rollers disposed upstream of the printing unit, a second pair of rollers and a third pair of rollers which are disposed downstream of the printing unit. The image printing apparatus further includes a guide member disposed between the second pair of rollers and the third pair of rollers. The guide member includes a guide portion which guides the printing medium transported by the second pair of rollers. The guide member is configured to pivot between a slanting position and a laying position.Type: GrantFiled: January 31, 2011Date of Patent: April 24, 2012Assignee: Brother Kogyo Kabushiki KaishaInventors: Naokazu Tanahashi, Shingo Ito, Shota Iijima, Yasuhira Ota, Iwane Sano
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Publication number: 20120068398Abstract: According to one embodiment, a sheet handling apparatus includes a conveying path to convey a sheet, a processing portion to perform a predetermined process on the sheet while conveying the sheet on the conveying path, a separable roller pair that is arranged at a certain distance from the processing portion on an upstream side or a downstream side in conveying direction, the separable roller pair being adapted to hand over the sheet between the conveying path and the processing portion by holding the sheet with a nip and rotating, a separating mechanism to separate the separable roller pair, and a controller that controls the separating mechanism such that the separable roller pair is separated before or after processing is started with the processing portion on a sheet that is conveyed on the conveying path.Type: ApplicationFiled: September 2, 2011Publication date: March 22, 2012Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yukio ASARI, Toru Todoriki, Yusuke Mitsuya, Yoshihiko Naruoka, Naruaki Hiramitsu
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Patent number: 8123210Abstract: A paper feeding apparatus for a printer includes a motor; a first roller assembly includes a first roller having a first end, a second end and an axis; a first gear disposed at the first end of the first roller, wherein the first gear is configured to be driven by the motor; and a second gear disposed at the second end of the first roller, wherein the second gear having a first bevel gear; a drive shaft including a first end, a second end and an axis, wherein the first end of the drive shaft having a second bevel gear that is configured to engage with the first bevel gear of the second gear of the first roller assembly, and wherein the second end of the drive shaft having a third bevel gear; and a second roller assembly having a second roller and a fourth bevel gear that is configured to engage with the third bevel gear at the second end of the drive shaft.Type: GrantFiled: October 27, 2010Date of Patent: February 28, 2012Assignee: Eastman Kodak CompanyInventor: Richard A. Murray
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Patent number: 8104760Abstract: An automatic document transport device includes a document stacker that is movable between a stacking position and an open position; a document transport path; a document feed member; a document output section; a document output member disposed downstream of an image reading position, the document output member including upper and lower output members; and a shielding member disposed above a document output slot and between the document output member and the document output section, the shielding member including first and second shielding portions, the first shielding portion extending upward and having a lower end disposed above a region in which the upper and lower output members contact each other, the second shielding portion extending downstream from the lower end of the first shielding portion, the shielding member shielding the upper output member from a space between the document stacker and the document output section.Type: GrantFiled: November 24, 2010Date of Patent: January 31, 2012Assignee: Fuji Xerox Co., Ltd.Inventors: Nobutoshi Hamasaki, SengGyu Cho, DukHyun Ko
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Publication number: 20110291347Abstract: There is provided a transporting device transporting a medium, including: a first member pair which changes a posture of the first member pair between a first posture and a second posture; a second member pair which changes a posture of the second member pair between a third posture and a fourth posture; and a movable member which is movable between a fifth posture and a sixth posture, and which has a first abutting portion and a second abutting portion, wherein, in a process that the movable member moves from the fifth posture to the sixth posture, the first abutting portion makes the first member pair change the posture from the first posture to the second posture, and while the first abutting portion makes the first member pair change the posture, the second abutting portion abuts on one of the second member pair.Type: ApplicationFiled: March 28, 2011Publication date: December 1, 2011Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Iwane SANO, Yasuhira OTA, Naokazu TANAHASHI, Shota IIJIMA, Shingo ITO
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Publication number: 20110249068Abstract: A second support member supports a first support member so that the first support member is movable between a predetermined first position and a second position at an upstream side of the first position in a conveying direction of a recording medium. The first support member is moved to the first position during conveyance of the recording medium by a first conveying section. The first support member is moved to the second position during non-conveyance of the recording medium by the first conveying section.Type: ApplicationFiled: June 22, 2011Publication date: October 13, 2011Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Kohei TERADA
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Publication number: 20110127707Abstract: In a color printer in which a drive force of a fixed gear that rotates not in both a forward direction and a reverse direction but in either one direction only is transmitted to a discharging unit, a swing gear is attached to a branch guide via a switching link and a transmission link as a link mechanism. When a solenoid mechanism starts driving, the transmission link rotates. In accordance with the rotation of the transmission link, the switching link rotates, so that a switching among a discharge conveying path, a duplex-printing conveying path, and a switchback conveying path by the branch guide and a switching of a rotating direction of a transmission gear can be simultaneously performed.Type: ApplicationFiled: February 7, 2011Publication date: June 2, 2011Inventors: Haruyuki Honda, Hiroshi Fujiwara, Yasuhide Ohkubo, Ippei Kimura, Toshikane Nishii, Shigeo Nanno, Mizuna Tanaka, Tomoyoshi Yamazaki, Masafumi Takahira
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Publication number: 20110074083Abstract: A sheet post-processing apparatus of the invention includes a sheet guiding unit configured to have plural components including paper carrying components be attached thereto, a tray onto which a sheet of paper is discharged, and a protection cover attached to the sheet guiding unit at a portion in close proximity to the tray side. A protection cover has a cover main body, a screw attachment portion, a screw cover that covers the screw attached to the screw attachment portion, and a slit used for the tip end of the screw cover to be inserted into the cover main body to be fixed thereto.Type: ApplicationFiled: December 7, 2010Publication date: March 31, 2011Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventor: Shouichi Dobashi
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Publication number: 20110057376Abstract: There is provided a technique which can greatly improve throughput at the time when, after a folding process is performed to a bundle of sheets, the bundle of sheets subjected to the folding process is transported to a downstream side, and can prevent a wrinkle from occurring in the bundle of sheets at the time of the folding process. A sheet transport speed of a pair of rollers is changed from a first transport speed to a second transport speed at a specified timing between when a folding blade finishes a pressing operation of the bundle of sheets and starts a return operation to a waiting position and when a rear edge of the bundle of sheets pressed into a nip of a pair of rollers by the folding blade passes through the nip of the pair of rollers.Type: ApplicationFiled: October 7, 2010Publication date: March 10, 2011Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Ken Iguchi, Chiaki Iizuka, Takahiro Kawaguchi, Shinichiro Mano
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Patent number: 7762549Abstract: A recording apparatus includes a feeding section configured to feed a recording sheet, a first conveyance roller which conveys the recording sheet fed from the feeding section to a recording area and conveys the recording sheet during a recording operation, a recording section configured to record an image on the recording sheet at the recording area downstream from the first conveyance roller in the direction of feeding the recording sheet, a conveyance rate detection unit configured to detect the conveyance rate of the recording sheet conveyed by the first conveyance roller, a recording sheet end detection unit disposed downstream from the first conveyance roller and detects the end part of the recording sheet, and a correction unit configured to correct the conveyance rate of the recording sheet conveyed by the first conveyance roller based on a result detected by the conveyance rate detection unit.Type: GrantFiled: June 8, 2007Date of Patent: July 27, 2010Assignee: Canon Kabushiki KaishaInventor: Yasuyuki Hirai
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Patent number: 7753355Abstract: An image reader has an image reading portion and first and second conveying portions each having plural pairs of rotating bodies. A first changing portion makes a changeover between a first state in which the plural pairs of rotating bodies in the first conveying portion nips the sheet and a second state in which at least one of the plural pairs of rotating bodies in the first conveying portion is separated and the other pairs of rotating bodies in the first conveying portion nip the sheet, and a second changing portion makes a changeover between a first state in which the plural pairs of rotating bodies of the second conveying portion nips the sheet and a second state in which at least one of the plural pairs of rotating bodies in the second conveying portion is separated and the other pairs of rotating bodies in the second conveying portion nip the sheet.Type: GrantFiled: March 2, 2009Date of Patent: July 13, 2010Assignee: Canon Kabushiki KaishaInventor: Akiyuki Mitamura
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Patent number: 7731188Abstract: A sheet handling system comprising a sheet registration system having sheet registration nips and a receiving system for a sheet including a capturing point for engaging said sheet. Auxiliary nips are positioned between the sheet registration nips and the receiving station. The auxiliary nips are moveable between an open and closed position. A controller receives a signal indicative of the length of the sheet and sends a signal to the auxiliary nips to be in a sheet engaging position when the length of the sheet is less than the distance between the sheet feeding nips and the capturing point of the receiving station and be in an open position if the length of the sheet is greater than the distance between the sheet registration nips and the capturing point of the receiving station. In another embodiment, the auxiliary nips are maintained in their open position until the trailing edge of a sheet is about to leave the sheet registration nips, at which point the auxiliary nips are closed.Type: GrantFiled: July 18, 2007Date of Patent: June 8, 2010Assignee: Xerox CorporationInventors: Joannes N. M. deJong, Lloyd A. Williams, Jack G. Elliot