Responsive To Sheet Sensor Patents (Class 271/265.01)
  • Patent number: 10435262
    Abstract: A sheet feeding device includes: a sheet storage that stores a plurality of sheets; a conveyer that conveys, in a sheet conveyance direction, sheets stored inside the sheet storage; a driver that drives the conveyer in such a manner that a conveyance speed of the sheet is switchable between two or more speeds; a corrector that corrects inclination of the sheet more on a downstream side in the sheet conveyance direction than the conveyer is; a first sheet detector that detects a sheet positioned at a first predetermined position between the conveyer and the corrector; and a hardware processor that controls the driver to change a conveyance speed of the sheet conveyed by the conveyer in accordance with a detection result of the first sheet detector.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: October 8, 2019
    Assignee: Konica Minolta, Inc.
    Inventor: Yoshiyuki Masuda
  • Patent number: 10377155
    Abstract: Disclosed is a recording apparatus including a recording head that performs recording with respect to a medium at a prescribed distance, a contact section that is capable of being in contact with the medium, a carriage that changes a relative location between the medium and the contact section, and an ultrasonic sensor that is capable of sensing an ultrasonic wave which is generated in a case where the medium is in contact with the contact section. The carriage changes the relative location such that a relative velocity between the medium and the contact section is over a prescribed value (transport velocity of the medium), and the ultrasonic sensor is capable of detecting a state of the medium by sensing the ultrasonic wave.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: August 13, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Shuji Otsuka, Seiichi Taniguchi
  • Patent number: 10322897
    Abstract: In one example, a printing device is described. The printing device may include a transport roller to move a print medium through the printing device, a sensor to detect a trailing edge of the print medium, a processor, and a non-transitory computer-readable medium storing instructions. In one example, the instructions, when executed by the processor, cause the processor to move the print medium toward an output of the printing device via the transport roller after a printing to the print medium, detect the trailing edge of the print medium via the sensor during a movement of the print medium via the transport roller, and hold the print medium in a position in contact with the transport roller, in response to a detection of the trailing edge of the print medium via the sensor.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: June 18, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Keith Jariabka
  • Patent number: 10289051
    Abstract: Disclosed is an image forming apparatus, including: a transfer portion configured to convey a sheet and to transfer a toner image to the sheet; a fixing portion configured to convey the sheet at a fixing conveying velocity and to fix the toner image; and a control portion configured to control the fixing portion such that the fixing conveying velocity is changed to a first velocity or to a second velocity which is lower than the first velocity, wherein the control portion can set a plurality of velocity bands each of which is a combination of the first velocity and the second velocity, the control portion can perform a changing of the velocity band a several times based on the state of the loop of the sheet while the transfer portion and the fixing portion are conveying the sheet.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: May 14, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tsubasa Ito
  • Patent number: 10291802
    Abstract: A document reader includes: a scanner unit; an ADF; a hinge that connects the scanner unit and the ADF in a way that the ADF is openable from and closable to the scanner unit by turning around a turn shaft of the hinge; and a positioning mechanism. The hinge includes a pressing member that holds the ADF open, and is arranged on a back side of the scanner unit with the turn shaft located above the pressing member. The positioning mechanism includes: a projecting portion located below the turn shaft, and formed on a surface of the hinge intersecting an axial direction of the turn shaft; a slit formed in the scanner unit, and brought into engagement with the projecting portion; and an adjusting screw that presses a lower part of the hinge from the back side of the scanner unit.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: May 14, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Soichiro Kii
  • Patent number: 10280019
    Abstract: A paper feeder includes a lift plate, a pickup roller, a feed roller, a retard roller, a rotation-count detection sensor, and a control unit. The rotation-count detection sensor outputs a rotation-count detection signal. The rotation-count detection signal indicates a rotation count of the retard roller. The control unit detects the rotation count of the retard roller based on the rotation-count detection signal. The lift plate separates from the pickup roller before the control unit detects the rotation count of the retard roller. The feed roller is driven when the control unit detects the rotation count of the retard roller. The retard roller is in abutting contact with the feed roller when the control unit detects the rotation count of the retard roller. The control unit determines whether replacement of the retard roller is necessary or not, based on the detected rotation count of the retard roller.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: May 7, 2019
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Hiroaki Takai
  • Patent number: 10183821
    Abstract: In accordance with an embodiment, a paper feed apparatus comprises a paper feed section, a separation section, an abutting section and a friction force variable section. The paper feed section feeds an image receiving medium. The separation section is arranged at the downstream side of the paper feed section in a conveyance direction of the image receiving medium. In a case in which a plurality of the image receiving media fed from the paper feed section is overlapped, the separation section separates the plurality of the image receiving media that is overlapped. The abutting section abuts against the image receiving medium fed from the paper feed section. The friction force variable section changes a friction force of the abutting section against the image receiving medium.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: January 22, 2019
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Toshiaki Oshiro
  • Patent number: 10106353
    Abstract: An edge detection device that detects an edge position in a width direction orthogonal to a conveying direction of a conveyance object, and includes: a photoelectric converter that is arranged in a conveyance path of the object and includes photoelectric conversion elements aligned along the width direction; a binarizer that binarizes an output from each of the photoelectric conversion elements by threshold comparison; a detector that detects a position of the photoelectric converter at which a binarized value is switched; a storage that stores therein a detection range as a range used for edge detection among the photoelectric conversion elements for each size of the object; and a determiner that reads out the detection range corresponding to the size of the object from the storage and determines a position detected by the detector within the detection range to be an edge position in the width direction of the object.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: October 23, 2018
    Assignee: Ricoh Company, Limited
    Inventors: Satoshi Ueda, Masumi Nakamura
  • Patent number: 9950887
    Abstract: After a detection flag and a detection member are integrally rotated as a result of the detection flag being pushed by a sheet, the detection flag is rotated relative to the detection member, with the detection member being in contact with an abutting portion.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: April 24, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomooku Koyama, Naoyuki Maeda
  • Patent number: 9950893
    Abstract: A paper sheet handling apparatus that recognizes by using a recognition unit and counts paper sheets being transported via a transport path includes a dust tray that is arranged inside a housing of the paper sheet handling apparatus for collecting dust generated inside the housing and that can be pulled out of the paper sheet handling apparatus from a front surface thereof.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: April 24, 2018
    Assignee: GLORY LTD.
    Inventor: Tsuyoshi Hodatsu
  • Patent number: 9944486
    Abstract: User labor relating to determining on an alignment condition is reduced and a stable conveying operation is realized by aligning a sheet bundle also when a sheet bundle is added. A sheet bundle composed of multiple sheet materials is placed on a loading platform. An encoder pulse unit detects the amount of the sheet bundle placed on the loading platform based on the opening amount of a pressure plate. A control unit determines on an alignment condition according to the amount of the sheet bundle. Rotating members align the sheet bundle in accordance with the alignment condition. When it is determined that another sheet bundle has been added to the loading platform, the control unit updates the alignment condition according to the total amount of the other sheet bundle and the sheet bundle remaining on the loading platform.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: April 17, 2018
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventor: Koichi Kajiki
  • Patent number: 9915907
    Abstract: The document conveying apparatus includes a document tray, a butted part with which leading edges of a plurality of documents stacked on the document tray are butted, a roller for conveying a document stacked at a lowermost position, a pressurizing module for pressurizing, from above, the documents stacked on the document tray, a separator, a first detector, provided between the butted part and the separator in a document conveying direction, for detecting a conveyed document, and a control module for causing the pressurizing module to pressurize the documents stacked on the document tray and causing the roller to rotate with a first speed until the first detector detects a document. In a case where the first detector detects a document, the control module reduces a force with which the pressurizing module pressurizes the documents and causes the roller to rotate with a second speed slower than the first speed.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: March 13, 2018
    Assignee: PFU LIMITED
    Inventor: Yuki Takatou
  • Patent number: 9862210
    Abstract: A sheet transporting apparatus is provided, including a transport mechanism provided with a roller, a motor, a controller, and a measuring input unit, wherein a transport route has a curved area for inverting the sheet, and the controller is constructed such that the control on the motor is executed by a closed loop control system by using a measured value of an control output at an initial stage of the transport of a sheet from a tray, and the control on the motor is switched from the control performed by the closed loop control system to control performed by an open loop control system on condition that a preset phenomenon arises after the sheet is taken out of the tray.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: January 9, 2018
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kenji Samoto, Kenta Horade, Mitsuhiro Nozaki, Hirotaka Aoki
  • Patent number: 9802428
    Abstract: A target transport apparatus includes a transport roller pair that has a plurality of segmented roller members disposed at intervals in a width direction that intersects with a transport direction of continuous paper and that imparts a transport force on the continuous paper by the segmented roller members pinching the continuous paper; and an image capturing unit, disposed in a location that corresponds to a pinched area in the width direction of the continuous paper that is pinched by the segmented roller members and to the pinched area along the transport direction, that detects, without making contact with the continuous paper, an amount by which the continuous paper is transported by the transport roller pair.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: October 31, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Takahiro Abe
  • Patent number: 9733218
    Abstract: A sheet conveying device includes: a sending unit configured to send an ultrasonic wave; a receiving unit positioned to face the sending unit across a conveyance path, along which a sheet is conveyed, and configured to receive a first ultrasonic wave, the first ultrasonic wave being an ultrasonic wave sent from the sending unit and passed through the sheet, and output a first voltage corresponding to the first ultrasonic wave; an adjusting unit configured to adjust the first voltage into an adjusted first voltage according to a setting; an amplification unit configured to amplify the adjusted first voltage by a preset amplification factor for multi-feed determination into an amplified first voltage; and a determining unit configured to determine whether or not multi-feed of the sheet has occurred based on the amplified first voltage.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: August 15, 2017
    Assignee: RICOH COMPANY, LTD
    Inventor: Hiroyuki Ono
  • Patent number: 9714149
    Abstract: Systems and methods for deskewing a media object may include receiving, at a deskew of a self-service terminal, the media object. The method may also include engaging a drive member to position the media object into a first position within the deskew. A deskew member may be engaged in a first direction to position the media object into a second position within the deskew. The deskew member may be engaged in a second direction to position the media object into a third position within the deskew.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: July 25, 2017
    Assignee: NCR Corporation
    Inventors: Jason M. Gillier, Benjamin T. Widsten, Frank B. Dunn
  • Patent number: 9699339
    Abstract: An image forming apparatus, including a reading device and a controller to control the reading device to execute a reading operation, is provided. The controller in the reading operation executes a leading edge detecting process, wherein a leading edge of an original sheet is detected from image data acquired through the reading device; a trailing edge detecting process, wherein a trailing edge of the original sheet is detected from the image data acquired through the reading device; a determining process, wherein one of the leading edge and the trailing edge to be used to correct the image data acquired through the reading device is determined based on conditions of the detected leading edge and the trailing edge; and a correcting process, wherein the image data is corrected by use of the determined one of the leading edge and the trailing edge determined in the determining process.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: July 4, 2017
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hiroko Mori
  • Patent number: 9663310
    Abstract: A sheet feeding device includes a raising and lowering portion, a first detecting portion, a feeding portion, a second detecting portion, and a controller. When a change in a state of the feeding roller from a state of being in an uppermost sheet feedable position to a state of being not in the uppermost sheet feedable position is detected by the second detecting portion and then a change in a state of the uppermost sheet from a state of being in a feeding position to a state of being not in the feeding position is detected by the first detecting portion, the controller controls the raising and lowering portion to raise the stacking member on the basis of a correction amount determined based on a time from change timing of the second detecting portion to change timing of the first detecting portion.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: May 30, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Marehiko Hirajima
  • Patent number: 9592977
    Abstract: A first actuator is detected at a first detection position by a detecting unit when no sheet is held on a feed tray, and is not detected at a first non-detection position by the detecting unit when the first actuator is in contact with a sheet held on the feed tray. A second actuator is detected at a second detection position by the detecting unit when the second actuator is in contact, at a predetermined position downstream of the first actuator in a conveying direction, with a sheet conveyed, and is not detected at a second non-detection position by the detecting unit when the second actuator is out of contact, at the predetermined position, with the sheet conveyed. A restricting member restricts the first actuator from moving from the first non-detection position to the first detection position when the second actuator is at the second detection position.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: March 14, 2017
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yasuhira Ota, Noriyuki Kawamata, Takashi Omura
  • Patent number: 9586784
    Abstract: A paper sheet handling apparatus that recognizes by using a recognition unit and counts paper sheets being transported via a transport path includes a dust tray that is arranged inside a housing of the paper sheet handling apparatus for collecting dust generated inside the housing and that can be pulled out of the paper sheet handling apparatus from a front surface thereof.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: March 7, 2017
    Assignee: GLORY LTD.
    Inventor: Tsuyoshi Hodatsu
  • Patent number: 9561565
    Abstract: An apparatus for automatic placement of gaskets on a housing includes a base, the second feeding mechanism, a first detecting member, a bearing mechanism, an assembly mechanism, and a controller. The first detecting member can detect the position of the gaskets relative to the preset position. The detected results are transmitted to the controller by the first detecting member. The controller controls the second feeding mechanism to accurately adjust the position of the gaskets to preset position. Therefore, a projection of the gasket is accurately engaged in a mounting hole of the housing by the assembly mechanism.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: February 7, 2017
    Assignees: FU DING ELECTRONICAL TECHNOLOGY (JIASHAN) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Ming-Lu Yang, Liang Zhu, Hai-Dong Song
  • Patent number: 9517646
    Abstract: An image recording apparatus, including a tray, a chassis defining a first conveyer path and a second conveyer path, a base member including a guiding section that forms a part of the second conveyer path, a recording unit, and a conveyer roller to convey the sheet in the first conveyer path in a first conveying direction, is provided. The second conveyer path guides an inverted sheet from an upstream of the recording unit with regard to the first conveying direction to the first conveyer path through a curved path. The guiding section includes a first guiding plane, which forms a part of the second conveyer path on an upstream of the curved path with regard to the second conveying direction, and a second guiding plane, which adjoins the first guiding plane along a widthwise direction and is formed to dent with respect to the first guiding plane.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: December 13, 2016
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Iwane Sano
  • Patent number: 9475664
    Abstract: A document conveyance device according to the present disclosure includes a document conveyance path, a first actuator, a second actuator, and an optical sensor. The first actuator is disposed in the document conveyance path. The second actuator is disposed on a more downstream side than the first actuator in the document conveyance path in the document conveyance direction. An output state of the optical sensor is switched based on pivoting of the first actuator and second actuator. A tip end of the document passes the first actuator, whereby the optical sensor outputs a first output indicating a first state, the tip end of the document passes the second actuator, whereby the optical sensor outputs a second output indicating a second state, and a rear end of the document passes the first actuator, whereby the optical sensor outputs the first output.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: October 25, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Satoru Yonemoto
  • Patent number: 9426310
    Abstract: An image forming apparatus indicates on a display a message prompting placement of paper, which is to be placed in a cassette, on a reading device and issuance of an instruction to start reading, in order to set a size of paper placed in the cassette. When touch of a button is detected after the message is indicated and a user operation giving an instruction to start reading is accepted, the image forming apparatus detects the size of placed paper using the reading device. The image forming apparatus then sets the size of paper placed in the cassette to the detected size.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: August 23, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventors: Tetsuya Onuki, Morihisa Kawahara, Junichi Tanimoto
  • Patent number: 9172833
    Abstract: A multifunction device includes a case having a document tray provided in an upper part, a cover section provided above the case and covering the document tray, a reading section held in an inside part of the case and scanning a document that is placed in the document tray, a recording section held in the inside of the case and recording on a paper as a recoding medium, an inserting section inserting the document between the document tray and the cover section, and an opening section for discharging a recording medium provided in the case and discharging the paper recorded by the recording section. The inserting section functions as an exit that discharges the document from between the document tray and the cover section.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: October 27, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Takaaki Ishikawa, Tsuneo Handa
  • Patent number: 9164437
    Abstract: According to an embodiment, an image forming apparatus has an image forming unit, a transfer unit, a fixing unit, a first conveying path, a second conveying path, and a control unit. The image forming unit forms a toner image. The control unit controls execution of a print-less sheet passing processing in which, in a state where a toner image forming operation of the image forming unit is stopped, the first conveying path and the second conveying path convey a sheet to the transfer unit again through the transfer unit and the fixing unit. The control unit controls the execution of the toner image forming operation to the sheet subjected to the print-less sheet passing processing.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: October 20, 2015
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Hiroyuki Fuse
  • Patent number: 9145005
    Abstract: A printer includes a device main body having a recording head, and a double-sided printing unit that forms an inverting transport path for inverting a medium fed from the side on which the recording head is located and that is configured to be mountable in and removable from the device main body. A photosensor that detects paper within the double-sided printing unit when the double-sided printing unit is mounted in the device main body detects the paper within the double-sided printing unit via an opening provided in an upper area of the double-sided printing unit.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: September 29, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Narihiro Oki, Tetsuya Tamura, Tatsuya Shirane
  • Patent number: 9126787
    Abstract: A recording medium setting device includes a base plate on which recording media are set; guide members being moved in a width direction of the recording media that are set on the base plate; a contact detection unit detecting a contact between the guide members and the recording media; an approach unit moving the guide members in a direction so as to sandwich the recording media set on the base plate until the contact detection unit detects the contact between the guide members and the recording media; and an additional approach unit moving the guide members, moved by the approach unit, at a predetermined distance in the direction to squeeze the recording media after the contact detection unit detects the contact between the guide members and the recording media.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: September 8, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Adachi, Yuji Ikeda
  • Patent number: 9118830
    Abstract: A printer includes a scanner unit which reads a document; a recording portion which records information read by the scanner unit; and a tilt panel which constitutes the scanner unit and an operation portion of the recording portion. A printer executes a division reading mode which obtains image information of the entire document by linking image information obtained via a plurality of times of a document reading operation, with respect to the document of which the size is greater than the size of the document reading area. The image information of the entire document can be obtained by sequentially linking a predetermined image position of an ending position side of an image obtained by a first document reading operation and a predetermined image position of an initiating position side of an image obtained by the following document reading operation, in a linking direction of the image.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: August 25, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiyuki Okazawa, Hidetake Nishizawa, Yoshisada Aoki
  • Patent number: 9108813
    Abstract: An image forming apparatus includes an image forming section that forms an image, a transport path section along which a recording material that is yet to undergo or has undergone image formation performed by the image forming section is transported, a transport unit that is provided in the transport path section and transports the recording material while nipping the recording material, an operated portion that is operated by a user and activates the transport unit such that the recording material is removed from the transport unit, and a notification unit that notifies a completion of the operation of the operated portion on the basis of a position of the recording material that is removed from the transport unit by the user's operation of the operated portion.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: August 18, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yasunobu Goto, Makio Uehara, Hiromitsu Tomioka, Hiroyuki Momiyama
  • Patent number: 9056501
    Abstract: A control method that conveys a recording medium fed from a first conveyance unit a specific number of paper feed steps after the leading end is detected by a first detection unit, and stops conveyance after conveying the leading end of the recording medium passed the second conveyance unit, second detection unit, and print unit to an initial printing position has a reference distance acquisition step that gets a reference number of conveyance steps equal to the distance between the second detection unit and the initial printing position in the specific number of conveyance steps; an actual step count measurement step that measures an actual number of steps the recording medium is conveyed during actual conveyance from detection of the leading end by the second detection unit until conveyance stops; and an evaluation step that determines if paper feed error occurred when conveying the recording medium.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: June 16, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Ichimi Masuda, Masayuki Nakagawa
  • Patent number: 9039010
    Abstract: There are provided a paper conveying apparatus, a jam detection method and a computer-readable, non-transitory medium that can suppress erroneous detection of an occurrence of a jam by sound due to the sound generated along with conveyance of a paper. The paper conveying apparatus includes a first sound signal generator for generating a first sound signal corresponding to a sound generated by a paper during conveyance, at least a part of the first sound signal generator is provided at one end of a conveyance path of the paper, a second sound signal generator for generating a second sound signal corresponding to the sound, at least a part of the second sound signal generator is provided at the other end of the conveyance path, and a sound jam detector for determining whether a jam has occurred based on a difference of the first sound signal and the second sound signal.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: May 26, 2015
    Assignee: PFU Limited
    Inventors: Takayuki Umi, Masanobu Hongo
  • Publication number: 20150137445
    Abstract: The invention relates to a novel device and a novel method for transporting printable substrates in a precise manner, suitable for various types, sizes and thicknesses of substrate. The invention is also suitable for printing machines that do not come into contact with the substrate, such as ink-jet printing machines.
    Type: Application
    Filed: April 17, 2013
    Publication date: May 21, 2015
    Inventor: Edmond Abergel
  • Publication number: 20150130129
    Abstract: An image forming apparatus includes a body, a paper feed cassette, a rotary operating member, an engaging portion, engaged portions, and a size detection switch. The rotational operating member is rotatable. The engaging portion engages the rotary operating member with the paper feed cassette. Any one of the engaged portions is engaged by the engaging portion. The size detection switch is used to detect the size of a recording medium stored in the paper feed cassette. The rotational operating member includes a pressure portion that activates the size detection switch. The rotational force in the first direction necessary for causing the engagement to be released is greater than the rotational force in the second direction necessary for causing the engagement to be released.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Yuki UOHASHI
  • Publication number: 20150115525
    Abstract: A sheet conveyance apparatus includes a moving unit configured to move a conveyance unit nipping the sheet in the width direction such that in a case where the position of the end of the sheet in the width direction detected by the detection unit is separated from a reference position by an amount which is greater than a first predetermined amount and less than or equal to a second predetermined amount, the moving unit to move the conveyance unit by a third predetermined amount which is less than or equal to the first predetermined amount, and to perform control, in a case where the position of the end of the sheet in the width direction detected by the detection unit is separated from the reference position by an amount which is greater than the second predetermined amount, to perform abnormality processing.
    Type: Application
    Filed: October 28, 2014
    Publication date: April 30, 2015
    Inventor: Kohei Deno
  • Publication number: 20150115527
    Abstract: Provided is a sheet conveying apparatus which can improve rippling of a sheet. The sheet conveying apparatus which conveys the sheet includes an electromagnetic hysteresis brake 131 which is configured to apply a tension force in a conveying direction of the sheet and a controller 500C which performs control on the electromagnetic hysteresis brake 131 to vary a load. The controller 500C performs control on the load of the electromagnetic hysteresis brake 131 according to information relating to the sheet.
    Type: Application
    Filed: September 4, 2014
    Publication date: April 30, 2015
    Inventors: Koji Takematsu, Kazuhisa Okuda, Kenjiro Sugaya
  • Publication number: 20150102555
    Abstract: A sheet conveyance apparatus includes a conveyance roller pair, an urging portion, a releasing portion, and a moving portion. The conveyance roller pair includes a first roller and a second roller, and conveys a sheet. The urging portion applies a pinching force to the conveyance roller pair. The releasing portion releases the pinching force of the conveyance roller pair against an urging force of the urging portion. The moving portion moves the conveyance roller pair, the urging portion, and the releasing portion in a width direction intersecting with a sheet conveyance direction.
    Type: Application
    Filed: October 10, 2014
    Publication date: April 16, 2015
    Inventor: Kouhei Deno
  • Publication number: 20150102554
    Abstract: A braking device 1 for braking advancing of the rear portion of a flat sheet when the sheet is advanced and is displaced by being pulled by its front portion: a surface over which the sheet is advanced, a suction hole 10 in the surface which communicates with an exhaust orifice 30 via an air circulation channel 20, a principal compressed air injection device 40 which, by a Venturi effect, indirectly generates a braking suction air flow through the suction hole 10, a secondary compressed air injection device 50 which, by a Venturi effect, indirectly generates a cleaning suction air flow through the suction hole 10.
    Type: Application
    Filed: April 19, 2013
    Publication date: April 16, 2015
    Inventor: Jean-Claude Ansermot
  • Patent number: 8998202
    Abstract: Provided is a technology capable of identifying presence/absence of buckling at an occurrence of a jam and determining more appropriately whether or not to perform automatic sheet discharge. A sound collecting device provided on a conveying path of an image forming apparatus is used to collect sound generated from a sheet at the occurrence of the jam. Generated spectrum data is obtained by analyzing characteristics of the collected sound. The generated spectrum data is compared with reference spectrum data, to thereby identify the presence/absence of the buckling and discriminate the conveyance propriety of the sheet.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: April 7, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Teruhito Kai
  • Publication number: 20150091238
    Abstract: A sheet transport apparatus includes: a first motor and a second motor; a first roller configured to: rotate upon receiving motive power from the first motor; and transport a sheet in a predetermined transport direction; a second roller which is provided on a downstream side of the first roller in the transport direction and which is configured to: rotate upon receiving motive power from the second motor while nipping the sheet transported by the first roller at a nip position; and transport the sheet further downstream in the transport direction; and a controller. The controller includes a motor control unit configured to perform a first process for rotating the first roller and a second process for rotating the second roller; and a first reaction-force estimating observer configured to calculate a first estimated value which is an estimated value of a reaction force acting on the first motor.
    Type: Application
    Filed: June 3, 2014
    Publication date: April 2, 2015
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Yuichi HATAKEYAMA
  • Patent number: 8991820
    Abstract: There are provided a paper conveying apparatus, a jam detection method and a computer-readable, non-transitory medium that can suppress erroneous detection of a jam. The paper conveying apparatus includes a sound signal generator, provided with a sound detector near a conveyance path of a paper, for generating a sound signal, and a sound jam detector for determining whether a jam has occurred based on a variation of a component of the sound signal.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: March 31, 2015
    Assignee: PFU Limited
    Inventors: Masanobu Hongo, Tetsuo Funada, Nobuhisa Yamazaki
  • Patent number: 8991824
    Abstract: Provided is a sheet conveying apparatus which conveys a sheet, includes: a sheet conveying path which diverges into a first conveying path and a second conveying path at a diverging point; a guide member which is movable between a first position where the guide member guides the sheet to the first conveying path and a second position where the guide member guides the sheet to the second conveying path; a driving portion which is configured to move the guide member to the second position from the first position; and a holding portion which, in a case that the guide member is driven by the driving portion to move to the second position from the first position, provides a load to the driving by the driving portion and holds the guide member at a third position between the first position and the second position.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: March 31, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masato Suzuki
  • Publication number: 20150084276
    Abstract: A sheet size setting device gives information for identifying a sheet size. The sheet size setting device includes a first rotary member, an engaging portion, a biasing member, a second rotary member, and an assisting mechanism. The first rotary member has a cylindrical shape, and is rotatable around and slidably movable along a first axis. The second rotary member is supported rotatably around a second axis parallel to the first axis. The first rotary member includes a plurality of detected portions, a plurality of engaged portions, and a first gear portion. The engaging portion is operable to engage with one of the plurality of engaged portions to thereby restrict the rotation of the first rotary member. The assisting mechanism applies a moving force to the first rotary member in the axial direction with the rotation of the second rotary member so that the engaged portion disengages from the engaging portion.
    Type: Application
    Filed: September 25, 2014
    Publication date: March 26, 2015
    Inventor: Akinori Matsuno
  • Publication number: 20150084273
    Abstract: A sheet conveying apparatus including: a cover that is provided in an apparatus main body in an openable and closable manner to open a sheet conveying path through which the sheet is conveyed, by rotating in an open direction from a closed position; a guide member that is movably provided in the cover and forms the sheet conveying path; and a moving portion that is provided with a contact portion coming into contact with the sheet conveyed through the sheet conveying path, and is movably provided in the guide member; wherein the guide member moves with respect to the cover by rotating the cover in the open direction from the closed position, and thereby the moving portion moves by its own weight in a direction in which the contact portion of the moving portion is retracted from the sheet conveying path.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 26, 2015
    Inventor: Yasuhiro Shimoi
  • Patent number: 8985579
    Abstract: A paper feeding device includes a lower housing, an upper housing, a pickup assembly, a separation assembly, a relay assembly, a paper friction mechanism, an elastic element, a paper speed detector, a first paper feeding assembly, a second paper feeding assembly, a transmission assembly, a motor and a control unit. The control unit controls the paper speed detector to detect paper feeding speeds and the paper speed detector sends signals to the control unit for determining paper feeding conditions. The control unit controls the motor to rotate, and the motor drives the pickup assembly, the relay assembly and the first paper feeding assembly to rotate by virtue of the transmission assembly, and the first paper feeding assembly drives the second paper feeding assembly to rotate, the control unit is capable of adjusting rotating speeds of the motor, so that the paper feeding speeds are stabilized.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: March 24, 2015
    Assignee: Foxlink Image Technology Co., Ltd
    Inventors: Chun Chia Juan, Te You Chu
  • Publication number: 20150076763
    Abstract: A paper conveying device includes: a registration roller pair provided along a paper conveying path; a pick-up roller, a paper feed roller and a separation roller for feeding sheets of paper to the paper conveying path; and a controller controlling conveyance of sheets of paper such that when a preceding sheet is stopped at the registration roller pair, a following, succeeding sheet is temporarily stopped at a prescribed position G downstream of a conveying roller in the paper conveying direction, and the succeeding sheet is re-conveyed toward the registration roller pair at a prescribed timing. The controller changes the timing to start re-conveyance of the succeeding sheet in accordance with paper length of the conveyed sheet of paper.
    Type: Application
    Filed: March 13, 2013
    Publication date: March 19, 2015
    Inventors: Norichika Katsura, Kohji Aoki, Yoshiyuki Kobayashi, Haruhisa Furumoto
  • Patent number: 8973730
    Abstract: A paper sheet processing apparatus includes: an insertion slot through which a paper sheet is inserted; a sensor which detects insertion of the paper sheet; a traveling route through which the paper sheet is conveyed; a light emitting part which irradiates the traveling route with light; a light receiving part which receives light from the traveling route; a black calibration part which sets a reference value for the lowest brightness in a state that the emission of the light emitting part is ineffective; and an authenticity judgment processing part which judges an authenticity. The black calibration part can set the reference value before the authenticity judgment processing part judges the authenticity after the sensor detects the insertion of the paper sheet at every time when the paper sheet is inserted.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: March 10, 2015
    Assignee: Universal Entertainment Corporation
    Inventor: Takao Nireki
  • Patent number: 8970927
    Abstract: An image reading apparatus includes: a reading unit; a feeding unit; a carriage; a motor-side transmission gear for transmitting power from a motor; a carriage-side transmission gear for transmitting the power to the carriage; a feeding unit-side transmission gear for transmitting the power to the feeding unit; a switching gear switched between a meshing state with the carriage-side transmission gear at a carriage-side position and a meshing state with the feeding unit-side transmission gear at a feeding unit-side position; and a control device for performing: a first switching process for meshing the switching gear with the feeding unit-side transmission gear; a second switching process for meshing the switching gear with the carriage-side transmission gear; and an initialization process of the reading unit.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: March 3, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiroko Ishikawa
  • Publication number: 20150054217
    Abstract: An image forming apparatus includes a sheet supply tray having a plate for supporting a sheet to be supplied to an image forming unit, a first sheet positioning member configured to move relative to the plate and position the sheet, a moving member including a first detection portion and configured to move in a sheet supply direction in response to movement of the first sheet positioning member, a coupling member coupling the first sheet positioning member and the moving member and configured to move the moving member in response to the movement of the first sheet positioning member in the sheet supply direction, and a restriction mechanism configured to restrict movement of the coupling member according to an amount of the movement of the first sheet positioning member.
    Type: Application
    Filed: August 22, 2014
    Publication date: February 26, 2015
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Atsuo Hirose
  • Patent number: 8955841
    Abstract: An actual sheet interval from a preceding sheet to a succeeding sheet is detected by a top sensor. A registration roller is accelerated or decelerated such that the sheet interval from the preceding sheet to the succeeding sheet is an ideal value by the time that the leading edge of the succeeding sheet reaches a transfer nip part. Note that a time period during which acceleration or deceleration is applied and a sub-scan synchronization signal output timing are determined from the actual sheet interval. Note that a recording sheet P does not stop at the registration roller.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: February 17, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroto Endo