Jam Patents (Class 399/21)
  • Patent number: 10599087
    Abstract: An image forming apparatus which includes a plurality of parts including a rotating unit and which uses the plurality of parts to form an image on a sheet is shown. The apparatus includes the following, a sheet conveyor, an image former, and an image reader. A hardware processor controls a conveying interval of the sheet by the sheet conveyor, controls the image former to form an image on the sheet and to output the sheet, detects a defect from the read image data, and diagnoses a failed part in which the defect is detected periodically based on information of the detected defect and a cycle of the part. When the failed part is diagnosed, the hardware processor controls the image former to form an image for failure diagnosis and sets a conveying interval of the sheet by the sheet conveyor larger than the conveying interval in normal image forming.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: March 24, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventor: Hiroshi Ishii
  • Patent number: 10536599
    Abstract: A reader CPU stops a lead motor in a case in which a discharge sensor cannot detect reaching of a leading edge part of an original D even though the original is conveyed by a first amount (LP3+LM1) or a second amount (LP3+LM2) which is smaller than the first amount from when a lead sensor detects the original, when a reader image processing portion (leading edge detection portion) cannot detect the leading edge part of the original from image data of a first face of the original.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: January 14, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kaoru Hamada
  • Patent number: 10444674
    Abstract: An image forming apparatus includes a main assembly; an image forming portion for forming an image on a sheet; an openable member rotatably supported by the main assembly; a first feeding guide provided on the openable member; a second feeding guide provided in the main assembly, wherein when the openable member is closed, a sheet feeding path for feeding the sheet is formed by the first and second feeding guides; a hole provided in the first feeding guide; and an illumination device, provided on the openable member, for illuminating at least a part of the second feeding guide through the hole when the openable member is open.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: October 15, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaki Kakitani, Kenichi Manabe
  • Patent number: 10437183
    Abstract: A fixing device includes a fixing member, a pressure member, and a separating unit. The pressure member is rotatably located and in a pressure contact with the fixing member to form a fixing nip. The separating unit is configured to separate a sheet from the fixing member. The sheet is attached on the fixing member when passing through the fixing nip. The separating unit includes a sliding member, a claw member, and a turning mechanism. The sliding member is located in a state of contacting a surface of the fixing member. The claw member runs toward the fixing nip from the sliding member. The claw member has a distal end portion. The claw member is located in a state where the distal end portion contacts the surface of the fixing member. The turning mechanism reciprocates the sliding member and the claw member along a rotation direction of the fixing member.
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: October 8, 2019
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Yuichiro Tanaka
  • Patent number: 10429773
    Abstract: A fixing device includes a fixing unit including a pressing device and a heating device and that fixes an image formed on a recording medium by nipping the recording medium with the pressing device and the heating device; a driving device that drives the fixing unit; a load detector that detects a load applied to the driving device; and an abnormality detector that detects abnormality in the fixing unit with reference to the load generated when the recording medium passes through the fixing unit.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: October 1, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Tsuyoshi Sunohara, Takahito Chiba
  • Patent number: 10379475
    Abstract: An image forming apparatus includes a main assembly including an image forming portion configured to form an image on a sheet; a front cover mounted on a front side of the main assembly and configured to expose the image forming portion by being rotated from above toward below about a rotational axis crossing a vertical direction; a fixing portion configured to fix a position of the front cover in an open state; an exchange unit detachably mountable to the image forming portion in the open state of the front cover; and a projecting portion provided above the front cover in the vertical direction and configured to project information on exchange of the exchange unit onto an inner surface of the front cover in the open state when the exchange unit is to be exchanged.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: August 13, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuhiro Watanabe, Kenta Koyama, Hideki Takaoka, Masatoshi Lin, Wataru Kaku
  • Patent number: 10341517
    Abstract: In an image forming apparatus, a first motor causes a first rotor to rotate. The first motor rotates based on a first drive signal. A second motor causes a second rotor to rotate. The second motor rotates based on a second drive signal. A reading unit is provided between the first rotor and the second rotor. Based on a read signal, the reading unit reads a paper sheet being conveyed line by line. In a first period, a read signal generation unit generates the read signal in accordance with a frequency of the first drive signal. In a second period, the read signal generation unit generates, as the read signal, a signal for reading the paper sheet being conveyed at a reference speed.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: July 2, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Yuichiro Kurokawa
  • Patent number: 10310427
    Abstract: An image forming apparatus includes a display, a display controller, a cover, a cover sensor, a recording sheet sensor, and a jam solution work progress managing unit. The display controller causes the display to continuously display a guidance video in a process sequence when the recording sheet jam occurs. The guidance video shows a work procedure constituted of a plurality of processes for a solution work for a recording sheet jam. The jam solution work progress managing unit manages a progress of the solution work for the recording sheet jam. When the jam solution work progress managing unit determines that the solution work for the recording sheet jam is not performed while the cover sensor detects closing of the cover, the display controller causes the display to repeatedly display a guidance video showing a work procedure for a first process in the solution work for the recording sheet jam.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: June 4, 2019
    Assignee: Kyocera Document Solutions Inc.
    Inventors: Shinichi Nakanishi, Michiko Tashiro, Emi Tennichi
  • Patent number: 10244133
    Abstract: An image forming apparatus combines a plurality of sub-movies representing operation procedures to be performed to perform maintenance on the image forming apparatus and plays the combined sub-movies sequentially as one movie. In response to stopping the movie being played, the image forming apparatus displays a replay mark for use to issue a command to replay the movie from the beginning of a sub-movie corresponding to a position where the movie is stopped.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: March 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toru Ikeda
  • Patent number: 10154170
    Abstract: An image processing apparatus including a display unit includes a processor and a memory storing instructions, when executed by the processor, causing the image processing apparatus to function as a detection unit that detects occurrence of a sheet jammed inside the image processing apparatus and a display control unit that displays a screen based on detection of the occurrence of the jammed sheet. The screen includes a first region for displaying work that a user carries out to remove jammed sheets from inside the image processing apparatus and a second region for displaying work that the user carries out after removing the jammed sheets from inside the image processing apparatus.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: December 11, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toru Ikeda
  • Patent number: 10129419
    Abstract: An image forming apparatus which is capable of appropriately replaying movies to be displayed to the user. The image forming apparatus stores combinations of a plurality of movies for a plurality of maintenance procedures of the image forming apparatus and orders of replay for the plurality of movies according to each type of the plurality of maintenance procedures, specifies a type of the maintenance procedure to be executed to the image forming apparatus, and acquires a plurality of movies corresponding to the type of the specified maintenance procedure based on the stored information and replays the acquired movies as a series of movies according to the orders of relay.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: November 13, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroshi Uchikawa
  • Patent number: 10082755
    Abstract: A fixing device according to an embodiment includes a first rotating body, a pressing unit, and an urging member. The pressing unit includes a belt, a second rotating body, a belt supporting member, and a pushing member. The pushing member includes a pressing region for pressing the belt toward the first rotating body. The pushing member is disposed between the second rotating body and the belt supporting member. The pressing unit is capable of switching a pressing position and a release position. When viewed from the axial direction of the first rotating body, a line connecting the center of the first rotating body and the center of the turning fulcrum passes the pressing region of the pushing member in both of the pressing position and the release position.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: September 25, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Kazutoshi Takahashi
  • Patent number: 10054895
    Abstract: An image forming apparatus includes an intermediate transfer body; an image formation unit, configured to form a toner image on the intermediate transfer body; a transfer unit, arranged opposite the intermediate transfer body, configured to transfer the toner image onto a recording medium at a secondary transfer position; a first cleaning unit configured to collect toner of the toner image; a conveyance unit configured to convey the recording medium along a conveyance path; a jam detection unit configured to detect a jam of the recording medium conveyed on the conveyance path; a jam processing unit configured to transfer residual toner, which is not transferred onto the recording medium when the jam is detected by the jam detection unit, from the intermediate transfer body to the transfer unit; and a second cleaning unit configured to collect the residual toner on the transfer unit.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: August 21, 2018
    Assignee: Ricoh Company, Ltd.
    Inventor: Toshihiro Nakagaki
  • Patent number: 9895909
    Abstract: In accordance with an embodiment, a printer comprises a label holding section configured to hold a label roll formed by winding a belt-shaped label on the back surface of which an adhesive layer activated through heating at a temperature lower than a thermal color developing temperature of a printing surface is arranged without a mount; a cutting section configured to sandwich the label from the printing surface side and the adhesive layer side to cut it; and a printing section configured to be arranged at the downstream side of a label conveyance direction with respect to the cutting section and print on the printing surface of the label through a thermal head.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: February 20, 2018
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Tsutomu Fujiwara
  • Patent number: 9791821
    Abstract: A document conveyance apparatus includes a document conveyance section, a cover, an opening and closing detection sensor, a document detection sensor, and a control section. The control section detects opening and closing of the cover on the basis of an output value of the opening and closing detection sensor and detects whether or not there is a document in a predetermined detection position on the basis of the output value of the document detection sensor. If, when the output value of the document detection sensor has changed from a value indicating an opened state of the cover to a value indicating a closed state thereof, the output value of the document detection sensor is a value indicating that there is the document, the control section detects a half-closed state where the cover is not completely closed.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: October 17, 2017
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Nobuyuki Fuchimoto
  • Patent number: 9772595
    Abstract: An image forming system detects a first conveyance abnormality of a recording material when a time taken for the recording material conveyed along a conveyance path in the image forming system to pass a predetermined position exceeds a first threshold value, temporarily stops the conveyance of the recording material when the first conveyance abnormality is detected and changes the first threshold value to a second threshold value larger than the first threshold value when the conveyance of the recording material is temporarily stopped, and detects a second conveyance abnormality based on the second threshold when a re-conveyance is made to eject the recording material remaining in the conveyance path.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: September 26, 2017
    Assignee: Konica Minolta, Inc.
    Inventor: Takanori Togawa
  • Patent number: 9551966
    Abstract: Temperature of a printing medium 110 is sufficiently decreased by stopping the printing medium 110 in a discharge path, conveying the printing medium at a low speed, switching a conveyance path, or the like. If the temperature of the printing medium 110 can be sufficiently decreased, the thermochromism phenomenon is suppressed. As a result, it is possible to provide an image forming apparatus capable of achieving highly accurate color matching and color stability.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: January 24, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kenichi Hirota, Taichi Takemura, Tomohisa Itagaki
  • Patent number: 9477183
    Abstract: An image forming apparatus includes a transport module that is capable of being pulled out from an apparatus body of the image forming apparatus and in which a transport path along which a recording material, to which a toner image has been transferred, is to be transported is formed and a fixing unit that is provided in the transport module and that includes a fixing member, which fixes the toner image onto the recording material, and a pressure member, which forms a pressing part to which the recording material is to be transported between the fixing member and the pressure member. When the recording material whose length in a transport direction is longer than that of the transport module is present in the transport path, the transport module is pulled out from the apparatus body while the recording material is being nipped by the fixing member and the pressure member.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: October 25, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Atsumi Kurita, Masayoshi Nakao
  • Patent number: 9465336
    Abstract: A control device configured to control an image forming apparatus by replacing a fixing device mounted therein with another fixing device including a storing portion configured to store information corresponding to a width of a recording material. The control device includes: a reading portion configured to read the information corresponding to the width of the recording material stored in the storing portion; an obtaining portion configured to obtain information corresponding to a width of a recording material to be subjected to image formation; and a controller configured to control an operation of the image forming apparatus on the basis of the information read by the reading portion and the information obtained by the obtaining portion. The controller prohibits an image forming operation when the width of the recording material obtained by the obtaining portion is smaller than the width of the recording material read by the reading portion.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: October 11, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shutaro Saito, Kenichi Tanaka, Taiya Hirayama
  • Patent number: 9432542
    Abstract: An image forming apparatus and a method of controlling power-saving modes of the image forming apparatus are provided. The method of controlling power-saving modes of the image forming apparatus includes beginning a first power-saving mode after standing by in a normal mode for first time if no print operation is implemented, and beginning a second power-saving mode after standing by in the normal mode for second standby time if an error occurs under implementation of a print operation, wherein the second time is shorter than the first time, and the second power-saving mode includes a an error-checking mode.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: August 30, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Bin Yoon, Chang Hwan Kim
  • Patent number: 9348290
    Abstract: A sheet conveying device that passes a sheet to a nip portion formed between first and second rotating bodies, and conveys the sheet, the sheet conveying device includes a separation state determining unit configured to determine a separation state between the sheet having passed the nip portion and a surface of the first rotating body, a sheet separating unit configured to allow force to act on the sheet, and a control unit configured to control the force acting on the sheet by the sheet separating unit according to a result of the separation state determining unit, wherein the separation state determining unit includes an illumination unit, an imaging unit, and an acquisition unit, and the separation state between the sheet and the first rotating body is determined based on the acquired positional information of a tip of the sheet.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: May 24, 2016
    Assignee: KONICA MINOLTA INC.
    Inventors: Noboru Oomoto, Atsuhiko Shimoyama, Shinichi Yabuki, Ryo Oshima
  • Patent number: 9335718
    Abstract: An image forming apparatus includes: a rotatable first developer carrier; a tray on which a recording sheet is to be discharged; a switchback roller configured to rotate in a first rotating direction to convey the recording sheet in a direction coming close to the tray, and a control device configured to switch a rotating direction of the switchback roller from the first rotating direction to a second rotating direction opposite to the first rotating direction after rotation of the first developer carrier is stopped.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: May 10, 2016
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Yasuhiro Suzuki
  • Patent number: 9291964
    Abstract: An image formation apparatus includes a fixing unit that heats a medium having a developer image thereon while moving the medium to fix a developer image onto the medium, a motor that provides the fixing unit with a driving force to be used to move the medium, and a controller that determines whether the driving force provided by the motor is being transmitted to the fixing unit.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: March 22, 2016
    Assignee: Oki Data Corporation
    Inventor: Shuichi Fujikura
  • Patent number: 9213283
    Abstract: Provided is a fixing device including a heating rotating body that heats a toner image formed on a recording medium, a pressurizing rotating body including an endless belt that is placed in such a manner that an outer circumferential surface thereof faces the heating rotating body, a first pressurizing member that is placed on a side of an inner circumferential surface of the endless belt and forms a fixing nip portion between the endless belt and the heating rotating body, and a second pressurizing member that guides the recording medium so that the recording medium comes into contact with the heating rotating body on an upstream side of the fixing nip portion in a transportation direction of the recording medium, and a releasing unit that releases pressure contact of the pressurizing rotating body that is in pressure contact with heating rotating body.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: December 15, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hiroko Furukata, Shigeru Watanabe, Yasutaka Goto
  • Patent number: 9193547
    Abstract: A sheet conveyer, including a manual-feed conveyer path; a first sensor to detect presence of the sheet inserted in the manual-feed conveyer path; an upstream-side conveyer and a downstream-side conveyer to convey the sheet toward a downstream side; a second sensor to detect presence of the sheet in a downstream position with respect to the upstream-side conveyer, the second sensor being switchable between a presence-detectable state and an absence-detectable state; and a controller is provided. The controller measures presence-detecting duration of the sheet by the second sensor and controls the downstream-side conveyer to continue conveying the sheet if the first sensor is detecting presence of the sheet when the second sensor is switched to the absence-detectable state, and if a difference between a value calculated based on the measured presence-detecting duration and a reference value obtained based on a reference sheet length is smaller than a predetermined threshold.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: November 24, 2015
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Takashi Suzuki
  • Patent number: 9108441
    Abstract: An image forming apparatus includes: a recording material applying member configured to apply a recording material to a recording medium; a fixing member configured to fix a recording material to the medium; a first transportation unit configured to transport the medium to the recording material applying member and the fixing member; a discharge unit configured to discharge the medium; a second transportation unit configured to return the medium to the recording material applying unit; a reverse unit configured to reverse front and back surfaces of the recording medium provided in the second transportation unit; a transportation path switching unit configured to transport the medium to the discharge unit or the second transportation unit; and a control device configured to control the transportation path switching unit so as to transport the medium to the discharge unit when a fixing ability of the fixing member is decreased.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: August 18, 2015
    Assignee: FUJIFILM Corporation
    Inventor: Jun Yamanobe
  • Patent number: 9110436
    Abstract: An image forming apparatus (100) includes: a side cover (201) mounted on a side part of an apparatus body to be freely opened and closed; a fixing portion (80) mounted inside the apparatus body and close to the side cover (201) and fixing an image to a paper sheet P fed in a direction from a bottom to a top of the apparatus body; and a document platen (130) mounted at an upper part of the apparatus body and supporting a document placed thereon. The document platen (130) includes a cutout portion (130K) formed in a manner such that a portion opposed to an upper part of the side cover (201) is cut out inside; and the fixing portion (80) includes a nip (85) that, when the side cover (201) is opened, can be viewed obliquely from a lateral upper side of the apparatus body through the cutout portion (130K).
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: August 18, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masaya Asakawa, Yasuhiro Suto
  • Patent number: 9098044
    Abstract: An image forming system includes a feed section, a transport section, a toner-image forming section, a fixing section, a problem detecting section, and an additional feed section. The feed section feeds a sheet. The transport section transports the sheet fed from the feed section. The toner-image forming section forms a toner image onto the sheet transported by the transport section. The fixing section fixes the toner image formed by the toner-image forming section onto the sheet. The problem detecting section detects a problem in a sheet transport operation. The additional feed section feeds an additional sheet from the feed section toward the fixing section if the number of sheets stopped by the transport section in accordance with detection of the problem by the problem detecting section and subsequently transported toward the fixing section after the sheet transport operation is resumed is smaller than a predetermined number.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: August 4, 2015
    Assignee: FUJI XEROX XO., LTD.
    Inventor: Tomonari Sakurai
  • Patent number: 9069316
    Abstract: An image forming apparatus includes a main body, sheet discharge unit, fixing unit, and conveying guide. The fixing unit thermally fixes a developer image deposited on a sheet to provide an image-fixed sheet. The conveying guide defines at least a part of a conveying path. The conveying guide guides one surface of the image-fixed sheet. The conveying guide includes a fixed guide unit and movable guide unit. The fixed guide unit guides end portions of the image-fixed sheet in a widthwise direction orthogonal to a conveying direction of the image-fixed sheet. The fixed guide unit is immovable relative to the main body. The movable guide unit is disposed adjacent to the fixed guide unit in the widthwise direction and movable relative to the fixed guide unit. The movable guide unit guides the image-fixed sheet in a first position. The movable guide unit exposes the conveying path in a second position.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: June 30, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Masahito Saeki
  • Publication number: 20150147073
    Abstract: If a sheet is jammed while conveyed, whether the jammed sheet and a sheet preceding the jammed sheet have been generated by cutting an uncut sheet from which the jammed sheet is derived is determined. If the jammed sheet and the preceding sheet have not been generated, a printing apparatus re-prints a plurality of images including an image of the jammed sheet on a sheet, and the cutting apparatus cuts the re-printed sheet. If the jammed sheet and the preceding sheet have been generated, the printing apparatus re-prints a plurality of images including an image of the jammed sheet on a sheet, the cutting apparatus cuts the re-printed sheet, and a sheet that includes the same image as the preceding sheet is discharged to a different discharge destination from that of the preceding sheet.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 28, 2015
    Inventor: Takashi Nonaka
  • Publication number: 20150147074
    Abstract: A cleaner includes a cleaning member electrostatically removing toner on an object; a first electricity supplier supplying a first voltage (or current) with polarity opposite to that of toner to the cleaning member; a toner collecting member collecting toner from the cleaning member; and a second electricity supplier supplying a second voltage with the polarity greater than the first voltage to the toner collecting member. The first and second electricity suppliers set plural setting values of the first and second voltages smaller than the targeted values of the first and second voltages, and first and second control members of the first and second electricity suppliers output first and second control signals while changing in step-by-step manner so that first and second output members of the first and second electricity suppliers apply the first and second voltage in step-by-step manner before the first and second voltages reach the targeted voltages.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 28, 2015
    Inventors: Yuuji WADA, Kenji Sugiura, Naohiro Kumagai, Seiichi Kogure, Junpei Fujita, Yusuke Mitani, Kazuki Yogosawa
  • Patent number: 9039161
    Abstract: A liquid ejection apparatus includes: (a) a storage device for storing an image data set representing a plurality of images; (b) a liquid ejection head for performing an image formation on each recording medium; (c) a curl reduction device for reducing curl caused in each recording medium having the corresponding image formed thereon by the liquid ejection head; (d) an output tray for receiving each recording medium whose curl has been reduced by the curl reduction device, such that the received recording media are stacked on the output tray; and (e) a control device configured to control the curl reduction device, such that the curl caused in an earlier one of the recording media is reduced by a smaller degree than the curl caused in a later one of the recording media that has been subjected to the image formation later than the earlier one of the recording media.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: May 26, 2015
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Yoshihiro Itogawa
  • Patent number: 9036173
    Abstract: The present specification discloses systems and methods for enabling users to troubleshoot multifunction devices using handheld devices, such as mobile phones. In one embodiment, software executing on the handheld device receives data indicative of an error state in a multifunction device, causes the handheld device to obtain and display an image representative of an area of the multifunction device which would need to be serviced to address the error state, determines instructions for addressing the error state, and causes the handheld device to display the instructions in relation to the image representative of an area of the multifunction device.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: May 19, 2015
    Assignee: Xerox Corporation
    Inventors: David Andrew Thomas, Martin Richard Walsh
  • Patent number: 9030715
    Abstract: A sheet conveyance device is capable of detecting a sheet length in a conveyance direction correctly, and of detecting a length of a non-standard size sheet correctly. A detection unit detects front and rear ends of a sheet conveyed with a conveyance unit. A measurement unit measures sheet length in a conveyance direction based on a detection result of the detection unit. An acquisition unit acquires a reference length of the sheet. A computation unit computes a correction value that is used to correct a length measured by the measurement unit based on length measured and the reference length acquired in a correction mode. A storage unit stores the correction value computed. A determination unit determines sheet length corrected based on the correction value and the length measured at the time of conveyance of a sheet in a mode other than correction mode.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: May 12, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hidenori Sunada
  • Publication number: 20150125165
    Abstract: A sheet feeder control method for controlling a sheet feeder of an image forming apparatus includes feeding a sheet through a sheet feed path exposable to the exterior of the sheet feeder, detecting the feeding of the sheet at at least a first position on the sheet feed path, discharging the fed sheet to the exterior of the sheet feeder, detecting the discharge of the sheet at a second position downstream of the first position in a sheet feeding direction, detecting a sheet jam during the feeding and discharging of the sheet, and if the jammed sheet is detected at the second position but not at the first position, cancelling a malfunction state due to the sheet jam when the sheet stops being detected at the second position, irrespective of whether the sheet feed path is covered or exposed.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 7, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventor: Ryo TAKENAKA
  • Patent number: 9025973
    Abstract: An image forming apparatus includes a main body movably supporting an openable-and-closable portion, and the openable-and-closable portion is provided with a detection sensor. A first detection lever configured to be movable by being pushed by a sheet is provided on the main body, and a second detection lever configured to be capable of moving in conjunction with the movement of the first detection lever is provided on the openable-and-closable portion. The detection sensor is activated by the movement of the second detection lever based on the movement of the first detection lever.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: May 5, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takafumi Suzuki, Masaya Tsukamoto
  • Patent number: 9020373
    Abstract: A computer performs the following processing: calculating a probability that a machine fails in work applied to a printed matter; calculating, as a production environmental load value, a value including a printing environmental load value, a paper environmental load value, a product of the probability and a re-printing environmental load value, and a product of the probability and the paper environmental load value, the printing environmental load value representing a degree of load put on the environment resulting from printing onto paper used for the printed matter, the paper environment load value representing a degree of load put on an environment resulting from production of the paper, the re-printing environmental load value representing a degree of load put on the environment until the printing unit has conducted printing again since the machine failed in the work; and displaying the production environmental load value on the display.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: April 28, 2015
    Assignee: Konica Minolta, Inc.
    Inventors: Shigeo Tomita, Kazuhiko Kowase
  • Patent number: 9020372
    Abstract: An image forming apparatus capable of properly reducing recovery printing time, while reducing abrasion and deterioration of image bearing members. As an image formation mode determining method, a first method is selected before a print job is interrupted e.g. a jam, whereas for recovery printing, one of the first method and a second method is selected. In the first method, if an image to be formed is a color image, an image formation mode is set to an all-contact mode having an intermediate transfer belt brought into contact with all of photosensitive members, and if the image is a monochrome image, the mode is set to a partial-contact mode having the belt brought into contact only with a photosensitive member for black toner. In the second method, the mode is set to the all-contact mode for all pages on which image formation is to be performed.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: April 28, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasuhiro Yako
  • Publication number: 20150104204
    Abstract: An image forming apparatus comprising: an image bearing member which bears a toner image; a first driving portion which drives the image bearing member; a transfer portion which nips a sheet with the image bearing member and transfers the toner image to the sheet from the image bearing member; a sheet conveying portion which conveys the sheet with the toner image transferred by the transfer portion; a second driving portion which drives the sheet conveying portion; a sheet detector which detects the sheet between the transfer portion and the sheet conveying portion; and a controller which controls the second driving portion to drive the sheet conveying portion to convey the sheet after the first driving portion is stopped, so that the sheet detector can detect the sheet nipped between the image bearing member and the transfer portion.
    Type: Application
    Filed: September 17, 2014
    Publication date: April 16, 2015
    Inventor: Shotaro Ishihara
  • Patent number: 9008523
    Abstract: An image forming apparatus capable of distinguishing whether paper material retained in a sheet conveying path is an original or a recording material. An image forming apparatus includes an image reading unit that reads an original, a photosensitive drum that forms an image on a recording sheet, and a main motor and a double-sided-printing drive motor which convey the original and the recording sheet. Paper sheet sensors detect an occurrence of a jam of the original or the recording sheet. When a paper jam is detected, a CPU controls a display section to display a plurality of sheets retained in a conveying path, in a manner distinguishing between the original and the recording material.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: April 14, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toru Takahashi
  • Publication number: 20150093125
    Abstract: An image forming apparatus includes a cartridge, a first unit, and a second unit. The first unit includes a sheet discharge tray and a guide. The cartridge has an accommodating portion configured to accommodate a color material. The guide is positioned below the sheet discharge tray and is configured to guide the cartridge to its assembled position. The first unit has an opening directing downward, and the guide has a lower end. The second unit includes a sheet supply tray positioned below the guide. The first unit and the second unit are pivotally movably connected to each other about a pivot axis to provide a first position and a second position. In the first position, the opening is closed by the second unit and the lower end of the guide is directed toward the sheet supply tray. In the second position, the opening is exposed to an outside.
    Type: Application
    Filed: September 3, 2014
    Publication date: April 2, 2015
    Inventors: Masanari YOSHIKAWA, Yasushi OKABE
  • Publication number: 20150093126
    Abstract: An image forming apparatus includes a printing processing unit, a paper jam detection unit, and an operation display unit. The printing processing unit performs printing on a plurality of index sheets having index labels in different positions. The paper jam detection unit detects a paper jam in the plurality of index sheets. The operation display unit displays, when the paper jam is detected, a paper jam handling pattern selection screen for selecting a paper jam handling pattern of the printing processing unit.
    Type: Application
    Filed: September 24, 2014
    Publication date: April 2, 2015
    Inventor: Daijiro Kitamoto
  • Patent number: 8995849
    Abstract: A printing apparatus includes a print mechanism which performs a printing on a plurality of papers; a paper feed section on which the papers to be printed are placed; a paper discharge section on which the papers that have been printed are placed; a transport route which extends from the paper feed section to the paper discharge section via a printing position at which the printing is performed by the print mechanism; a transport mechanism which successively transports the papers along the transport route; and a controller which controls the transport mechanism. The controller controls the transport mechanism to perform a transportation of the papers by a plurality of transport modes including a first transport mode and a second transport mode.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 31, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yuichi Ota
  • Patent number: 8991823
    Abstract: An image forming apparatus according to an embodiment comprises a feed guide forming a feed path of a sheet and having an end portion movable between a closed position and an open position by rotating around a shaft, wherein the end portion is positioned above the shaft when the feed guide is in the open position, and the feed guide is configured to provide access for removal of a jammed sheet when in the open position. The image forming apparatus further comprises a holding unit configured to releasably hold the end portion of the feed guide in the open position.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: March 31, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Tetsuya Sato, Kazutoshi Takahashi
  • Patent number: 8983360
    Abstract: A printing system including: a first printer that forms an image on continuous-form printing paper, and includes a pre-heating unit that preliminarily heats the continuous-form printing paper prior to fixation and a fixing unit that performs the fixation; and a second printer that forms an image on the continuous-form printing paper fed from the first printer. The second printer includes a jam detecting unit that detects, at a detection position upstream of a position where the second printer forms the image on the continuous-form printing paper, and a control unit that controls the jam detecting unit such that the jam detection is not performed for a period of time, over which a deformed portion of the continuous-form printing paper which has been at rest at the pre-heating unit of the first printer passes through the detection position of the jam detecting unit.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: March 17, 2015
    Assignee: Ricoh Company, Limited
    Inventors: Soushi Kikuchi, Yuuki Kikushima, Sho Sawahata, Hidenori Takayasu
  • Patent number: 8977187
    Abstract: A post-processing device supplies a recoding medium when a punching unit is determined to have failed. The post-processing device allows the recording medium to be supplied to a stapling unit if passage of the recording medium supplied to the punching unit through an arrangement position of a second sensor is detected within a first time period after detection of passage of the recoding medium through an arrangement position of a first sensor.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: March 10, 2015
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Jun Nishimura
  • Publication number: 20150063836
    Abstract: Disclosed is a method of conditioning a fusing member having a top-release layer. The method includes heating the top-release layer to at least the melting temperature of the top-release layer while rotating the fusing member and while no pressure member engages the top-release layer, and cooling the top-release layer to less than the melting temperature of the top-release layer while rotating the fusing member. Other methods and devices are disclosed.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 5, 2015
    Applicant: Lexmark International, Inc.
    Inventors: Fangsheng Wu, Benjamin Karnik Johnson, Charles Scott McDavid, Jennifer Lyn Gordon
  • Patent number: 8971731
    Abstract: A recording material conveying device includes a stripping claw being in contact with one rotary body of a first pair of rotary bodies, and a supporting member supporting a recording material curved when a jam occurs. The supporting member includes a supporting section located more away from the stripping claw than an imaginary straight line (C) passing a nip portion of the first pair of rotary bodies and a surface on a conveying path's side of the stripping claw, and the supporting section supports the recording material curved when the jam occurs. The recording material conveying device further includes a conveyance guide that is disposed on the downstream side from the supporting member and is displaced toward a pressed direction by a pressing force acting when the curved recording material comes into contact with the conveyance guide.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: March 3, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Susumu Murakami
  • Patent number: 8970928
    Abstract: This invention provides a technique of preventing a collision between an original document and a printing material on a conveyance path when an image forming apparatus executes both additional printing on the original document and printing on the printing material. In a case where both additional printing on an original document and printing on a printing material are executed, the image forming apparatus according to one aspect of the invention conveys a read original document to a transfer unit through a conveyance path commonly used for an original document and sheet, and prints an image to be added on the original document. After the original document is conveyed to the transfer unit through the conveyance path, the image forming apparatus feeds a sheet from a sheet feeding unit to the conveyance path, and performs copying on the sheet in the transfer unit.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Junya Arakawa
  • Patent number: 8948618
    Abstract: A print system is provided which can execute, in a case that a jam occurs in a sheet processing apparatus, recovery processing of a job in which the jam occurred without wasting a sheet that has been already used in a subsequent job.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yuuki Maeda