Continuous (e.g., Roll, Fanfold) Patents (Class 399/384)
  • Patent number: 10365592
    Abstract: An image forming apparatus includes an image carrier, a transfer member that transfers an image on the image carrier to a continuous medium, a fixing device that fixes the image transferred to the medium, and a transport member that is disposed downstream of the fixing device in a transport direction of the medium and that transports the medium. When the transport member transports the medium, the fixing device is passively rotated in accordance with movement of the medium.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: July 30, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yuki Nagamori, Mitsuhiro Matsumoto, Kunihiko Sato, Kosuke Yamada
  • Patent number: 10289041
    Abstract: An image forming apparatus includes the following elements. A transfer unit is disposed in the image forming apparatus to be contactable to and separable from an image carrier and transfers an image on the image carrier to a continuous recording medium. A fixing unit fixes the image on the continuous recording medium by sandwiching it between first and second fixing members. The first and second fixing members are disposed in the image forming apparatus to be contactable to and separable from each other. The position adjusting image detector detects a position adjusting image on the image carrier. A controller performs control so that the first and second fixing members contact each other and the image carrier and the transfer unit contact each other and thereafter so that the position adjusting image is detected by the position adjusting image detector after a transport state of the continuous recording medium is stabilized.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: May 14, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Susumu Kibayashi
  • Patent number: 10201990
    Abstract: In one example a method is disclosed for printing duplex images. The method includes printing an image on side A of media, including an alignment mark. Detecting the alignment mark with a sensor. The velocity of the media is determined when the alignment mark is detected. Printing an image on side B of the media where the location of the image on side B is dependent on the velocity of the media. In another example a printer is disclosed that uses the method to print duplex images.
    Type: Grant
    Filed: November 9, 2014
    Date of Patent: February 12, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Cèsar Fernandez, Jose Galmes, Alisher Alikhodjaev
  • Patent number: 10088784
    Abstract: An image forming apparatus includes an image carrier; a transfer unit that transfers an image carried by the image carrier to a continuous medium; a fixing device that fixes the image transferred to the continuous medium; a determination unit that determines whether or not a tension is applied to the continuous medium; and a controller that drives the fixing device if a tension is applied to the continuous medium.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: October 2, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kunihiko Sato, Kosuke Yamada, Yuki Nagamori, Mitsuhiro Matsumoto
  • Patent number: 10040302
    Abstract: A pinion gear is coaxially attached to vicinity of an end of an inner bar. The pinion gear is engaged with a rack gear and rotates in response to upward and downward movements of the tension bar. When the pinion rotates, the inner bar correspondingly rotates. The inner bar and an outer bar, which is a tension applying bar, are connected to each other so as to freely rotate. When the pinion rotates, the inner bar correspondingly rotates, while the outer bar remains unrotated.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: August 7, 2018
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventors: Kohei Nakamura, Kazutaka Tamaki
  • Patent number: 9946201
    Abstract: An image-forming apparatus contains a control portion that controls a cooling operation of the fixing portion. The control portion sets an image confirmable position in which an image formed on a long sheet is confirmable. When a print job on the long sheet finishes, the control portion starts the cooling operation of the fixing portion and controls the conveying portion to convey the long sheet until a rear end of a final image fixed by a fixing portion reaches the image confirmable position and finishes the cooling operation of the fixing portion until the rear end of the image fixed by the fixing portion reaches the image confirmable position. The control portion also sets the image confirmable position to be at an outermost circumference of rolled paper reeled by a reeling apparatus.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: April 17, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventor: Kazunori Katada
  • Patent number: 9804538
    Abstract: An image forming apparatus includes an image forming part having a transfer part including a transfer member and a rotation member to face the transfer member, and the transfer part to transfer a developer with a transfer voltage to a recording medium of which a front surface is with a transfer region and a non-transfer region, in the transfer target region where the developer is to be disposed and in the non-transfer region where the developer is not to be disposed; a measuring part that measures a first electric resistance value and a second electric resistance value, the first electric resistance value being defined as in a state in which the transfer region is not present between the transfer member and the rotation member, and the second electric resistance value being defined as in another state in which the transfer region is present therebetween; and a control part that determines the transfer voltage value in the transfer part based on the first electric resistance value and the second electric resis
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: October 31, 2017
    Assignee: Oki Data Corporation
    Inventor: Daitetsu Amada
  • Patent number: 9715196
    Abstract: A method of controlling an image forming apparatus, an image forming apparatus and image forming system are described, with which banner paper can be processed by appropriately detecting the banner paper in the fixing position when the conveyance of the banner paper is halted. The image forming apparatus comprises a paper conveying unit for conveying banner paper, an image forming unit for transferring an image to the banner paper, a fixing unit for fixing the image to the banner paper in a fixing nip by heating and pressing the banner paper conveyed along a conveying route, and a control unit. This control unit identifies information about the paper position which coincides with the fixing nip when the conveyance of the banner paper is halted and information about the amount of paper deformation of the banner paper in the paper position, and outputs the information which is identified.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: July 25, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kazuteru Ishizuka, Tetsuya Ishikawa, Hiroshi Morimoto, Kei Okamura
  • Patent number: 9690239
    Abstract: An image forming apparatus includes the following. A conveying unit conveys a continuous sheet at least longer than a length of the apparatus itself. A first rotating member can be pressed to and separated from a second rotating member. The first rotating member can be rotated separated from the second rotating member. The continuous sheet can be stopped and held when the first rotating member is separated from the second rotating member. The image forming apparatus further includes a control unit. When the continuous sheet is stopped and held and the rotation of the first rotating member is started separated from the second rotating member, the control unit moves at least one of the first rotating member and the continuous sheet so that the continuous sheet is not in contact with the first rotating member, and then the control unit starts rotation of the first rotating member.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: June 27, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Makoto Ui, Kazunori Katada, Toshiaki Tomino
  • Patent number: 9632480
    Abstract: In an image forming apparatus of a tandem type including an intermediate conveying apparatus which conveys a sheet conveyed from a first image forming apparatus to a second image forming apparatus using a sheet conveying member, there are provided with a detecting portion configured to detect a state of the sheet conveying member, and an adjusting portion configured to adjust the state of the sheet conveying member so that the amount of heat radiation from the sheet in the sheet conveying member becomes constant, according to a detection result of the detecting portion.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: April 25, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Yuki Yamauchi, Hideo Isohara
  • Patent number: 9546063
    Abstract: An example method for printing in accordance with the present disclosure is provided. The method comprises detecting a selection of a manual mode for a print job, detecting that a stacker is in a manual mode condition, printing the print job and outputting the print job to the stacker.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: January 17, 2017
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Joseba Ormaechea Saracibar, Aviv Hassidov, Eduardo Martin Orue, Josep Luis Molinet Munar
  • Patent number: 9517642
    Abstract: A decision is made for each page as to whether to allow image printing on that page, by comparing the remaining sheet length DL with a length of an image about to be printed, IL. A length of a non-printed, rear-end cut sheet is also checked to determine whether the non-printed cut sheet needs to be further cut into smaller sheets. This arrangement can prevent a complete image to be printed in one page from being broken and only partly printed in the last portion of a paper roll, ensure that printed cut sheets and non-printed cut sheets are stably conveyed and discharged and enable the non-printed cut sheets to be almost equal in size so that they can be properly accommodated in the associated tray.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: December 13, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kengo Nieda, Masato Izumi, Masashi Kurihara, Hiroyuki Kakishima
  • Patent number: 9507552
    Abstract: A printing control apparatus includes a setting unit that sets a location of a delimitation in a print instruction, a buffer unit that buffers image data generated in response to the print instruction, and a transfer unit that transfers the image data buffered on the buffer unit to a printer that prints on a continuous-feed paper sheet. The transfer unit inserts blank sheet data at the location of the delimitation set by the setting unit when an amount of the image data buffered by the buffer unit becomes equal to or below a first threshold value and transfers the image data to the printer.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: November 29, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Masaharu Tonouchi
  • Patent number: 9429883
    Abstract: An image forming apparatus comprises a transfer fixer which secondarily transfers a first toner image on a first intermediate transfer belt onto a first side of a sheet at a first secondary transfer position and fixes the first toner image transferred to the first side of the sheet while secondarily transferring a second toner image on the second intermediate transfer belt onto a second side of the sheet opposite to the first side at a second secondary transfer position and fixing the second toner image transferred to the second side of the sheet.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: August 30, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Masao Ando
  • Patent number: 9365380
    Abstract: An image formation apparatus includes: an image formation unit that forms an image on continuous paper; a paper conveyance unit that conveys the paper through a conveyance path; a deviation correction unit that corrects deviation of the continuous paper by moving the paper on the conveyance path in a paper feed intersecting direction; a paper position measurement unit that measures a paper position in the paper feed intersecting direction of the paper on the conveyance path; and a control unit that controls the image formation unit and the deviation correction unit, wherein during stop of a conveyance operation, the control unit moves the paper to a predetermined position in the paper feed intersecting direction by deviation correction by the deviation correction unit, and during the conveyance operation, the control unit decides an image formation position in a main scanning direction in the image formation.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: June 14, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventor: Tetsu Kawasaki
  • Patent number: 9323188
    Abstract: In a fixing apparatus of an image forming apparatus, a heating member melts and fixes the unfixed toner. A heat controller controls temperatures of opposite end portion areas and a middle portion area of a surface of the heating member in a width direction perpendicular to a conveyance direction on an individual area basis. A pressure member is pressed against and contacted with the heating member to form a fixing part between the pressure member and the heating member. The heat controller controls the temperatures of the surface of the heating member so that the temperature of at least one of the opposite end portion areas of the surface of the heating member is higher than the temperature of the middle portion area of the surface of the heating member.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: April 26, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventor: Tetsuya Matsumoto
  • Patent number: 9304430
    Abstract: An image forming apparatus includes: a scanning unit configured to scan a photosensitive member with light; a developing unit configured to develop a latent image; a driving unit configured to cause the developing unit to come into contact with the photosensitive member or to be separated from the photosensitive member; and a control unit configured to let the scanning unit perform a preparation operation, in order for the scanning unit to form the latent image. The developing unit is separated from the photosensitive member while the preparation operation of the scanning unit is performed, and the control unit is configured to start, before the preparation operation of the scanning unit is completed, controlling the driving unit to bring the separated developing unit into contact with the photosensitive member.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: April 5, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yasuhisa Matsumoto, Keita Sato
  • Patent number: 9102169
    Abstract: An image forming apparatus includes a control unit arranged to control an image forming unit so as to form images based on image information and to form maintenance images for maintaining the image forming unit. The control unit is arranged to control the image forming unit so as to form images on the second side of the sheet after forming images on the first side of the sheet, and so as to form the maintenance images on the second side at positions such that the maintenance images do not overlap with the images based on the image information formed on the first side.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: August 11, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masashi Kurihara
  • Patent number: 9008563
    Abstract: An image forming apparatus has rotatable members for rotatably retaining respective ones of flanges mounted to opposite ends of a roll sheet, and placement stages on which the roll sheet is to be placed and on which respective ones of the rotatable members are mounted. Racks are mounted to respective ones of the placement stages for undergoing movement to move the placement stages relative one another to vary a distance between the placement stages. A pinion is arranged between the racks for undergoing rotation to move the racks, and a potentiometer whose resistance value varies in accordance with a distance between the placement stages undergoing movement with rotation of the pinion is provided. An A/D converter outputs a value based on a resistance value of the potentiometer. A calculation device calculates a width of the roll sheet based on the value output from the A/D converter. A memory stores the calculated width of the roll sheet.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: April 14, 2015
    Assignee: Seiko I Infotech Inc.
    Inventor: Kiyohito Hirota
  • Patent number: 8998516
    Abstract: A tandem printing system for imaging a continuous web of material includes a first printer serially coupled to a second printer wherein the speed of the web can be adjusted to maintain image quality and to compensate for a change in a diameter of a driver drum. The change in the diameter of the driver drum can be derived from characteristics of the printing system including the amount of sag of the continuous web of material moving between the first printer and the second printer.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: April 7, 2015
    Assignee: Xerox Corporation
    Inventors: Song-Feng Mo, Yongsoon Eun
  • Publication number: 20150078771
    Abstract: An image forming apparatus of the present invention includes: an image forming unit for forming an image on a continuous paper; a fixing unit for fixing by heat the image which has been formed on the continuous paper by the image forming unit; conveyance units for conveying the continuous paper; and a control unit for controlling the conveyance units to convey the continuous paper in such a manner that, when an image forming operation by the image forming unit is stopped, the same portion of the continuous paper, on which the image is not formed, does not remain in the fixing unit for a predetermined period of time.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 19, 2015
    Applicant: KONICA MINOLTA, INC.
    Inventors: Shinya TANIGAMI, Shingo SASAMI, Shougo FUKAI, Hideo YAMANE
  • 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: 8955439
    Abstract: A printing system includes first and second printing apparatuses that form images on first and second surfaces of a continuous recording sheet, respectively. The second printing apparatus includes a printing unit that forms a toner image on the sheet; a conveying unit that conveys the sheet at a reference speed in the printing unit; a fixing-conveying unit that conveys the sheet and fixes the toner image adhered to the sheet; a buffer unit that takes up slack in the sheet generated because of a difference in conveyance between the conveying unit and the fixing-conveying unit; a determining unit that determines a brake force for stopping conveyance of the fixing-conveying unit, based on a buffer amount of the buffer unit, which corresponds to the slack in the sheet; and a conveyance control unit that performs control to stop conveyance of the sheet by the determined brake force.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: February 17, 2015
    Assignee: Ricoh Company Limited
    Inventors: Kohji Kuwana, Masahiro Mizuno, Mitsunobu Gouda
  • Patent number: 8939664
    Abstract: A medium transport apparatus includes: a transport unit transporting a belt-shaped medium having plural marks formed in line at predetermined intervals in a transport direction; a detection unit detecting the marks on the medium; and a determining unit determining that a splice exists at a position on the medium if an interval of the marks detected from the medium by the detection unit differs from the predetermined intervals, the position being identified by the marks having the interval different from the predetermined intervals.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: January 27, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hiroyuki Aoki
  • Patent number: 8861015
    Abstract: An approach that prepares an electronic document of continuous information for document exchange that simultaneously supports continuous and page-by-page printing is described. In one embodiment, there is an electronic document generator tool for document exchange that includes an input component configured to receive input with respect to preparing the electronic document of continuous information for continuous and page-by-page printing. The input comprises an indication to represent the electronic document of continuous information in a page-based file format for document exchange and an indication of target page sizes with respective unprintable margins that are desired for printing the electronic document of continuous information.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: October 14, 2014
    Assignee: Schlumberger Technology Corporation
    Inventor: Peter Ireland
  • Patent number: 8851770
    Abstract: A control unit includes a memory storing correction data obtained by associating information acquired by a first acquisition unit (rotary encoder) with information acquired by a second acquisition unit (direct sensor) with respect to, at least one rotation of a conveying roller. When a plurality of images are sequentially printed on a first surface and a second surface of a continuous sheet, the control unit reads the correction data corresponding to the rotation information acquired by the first acquisition unit from the memory and corrects at least one of driving control of a print head and driving control of the roller. The correction data used in printing on the first surface of the sheet is different from that used in printing on the second surface of the sheet.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: October 7, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiko Ikeda, Masahito Yoshida, Koichiro Kawaguchi, Kenji Shigeno, Toshiki Takeuchi, Masato Izumi, Ryosuke Sato, Kengo Nieda
  • Patent number: 8790027
    Abstract: There is disclosed a printer having a print head and a high frequency magnetic coupler to magnetically couple with high frequency RFID transponders in a web at or near the print head. The coupler couples magnetically to only one transponder at a time that is generally aligned with one or more inductors, and magnetic radiation from the inductor(s) may be at least partly shielded from upstream transponders, and a ground conductor in the upstream side of the coupler diminishes radiation to upstream transponders.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: July 29, 2014
    Assignee: Avery Dennison Corporation
    Inventor: Lance D. Neuhard
  • Patent number: 8774660
    Abstract: An image forming apparatus includes a separating unit for performing a stripping operation of forcibly returning toner particles carried on a toner bearing member to a developer bearing member, a sheet size discriminator for discriminating whether a sheet is a standard sized sheet or a long sheet, a determiner for determining whether or not there is any blank area of a predetermined length or longer in the sub scanning direction, where no toner image is to be substantially transferred, for each long sheet, and a controller for controlling the stripping operation. The controller causes the separating unit to perform the stripping operation at a developing timing of an electrostatic latent image corresponding to the blank area to be formed on the image bearing member when the sheet is a long sheet and when the blank area of the predetermined length or longer is present.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: July 8, 2014
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Masashi Fujishima
  • Patent number: 8699906
    Abstract: A printing system includes a first printing apparatus, a second printing apparatus, and a control device. The second printing apparatus is provided at a rear stage of the first printing apparatus, and includes a second preheating unit that preheats a recording medium from one surface before thermally fixing a toner image to another surface, and a temperature control unit that increase the temperature of the second preheating unit from a normal temperature to a target temperature, in response to a printing preparation instruction received in a temporary printing stop state from the control device. The control device starts printing, when the temperature of the second preheating unit reaches the target temperature. The temperature control unit decreases the temperature of the second preheating unit from the target temperature to the normal temperature, when the recording medium is conveyed by a length from a deformed portion to the second preheating unit.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: April 15, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Atsushi Miyamoto, Soushi Kikuchi
  • Patent number: 8619315
    Abstract: According to one embodiment, a computer implemented method of printing data is provided, the method comprising identifying whether a single- or a double-sided printer is operatively connected to the computer, identifying whether single- or double sided media is installed in the printer, and selecting a mode of operation for the printer based on whether it is identified as a single- or a double-sided printer and whether single- or double-sided media is identified as being installed therein. Variations are provided.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: December 31, 2013
    Assignee: NCR Corporation
    Inventors: Colman McGarry, Joseph Jennings
  • Patent number: 8613253
    Abstract: A printing apparatus including: a web conveyance unit that conveys a web; a printing unit that prints an image on the web; a web discharging unit that discharges the web on which the image is formed with the printing unit, the web discharging unit being placed downstream of the printing unit; and a web withdrawal unit that withdraws the web into the printing apparatus, the web withdrawal unit including a web withdrawal roller and at least one pressing roller. When the printing apparatus is in a print waiting state, the printing apparatus drives the web withdrawal roller intermittently, while a pressing force from the at least one of the pressing roller is maintained, so as to convey the web intermittently.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: December 24, 2013
    Assignee: Ricoh Company, Ltd.
    Inventor: Yuuji Ohmura
  • Patent number: 8594554
    Abstract: A system that avoids any stopping or reversing of the web direction in a continuous feed printer, instead maintaining consistent process speed, only requiring a slowing and speeding up of the web to cycle through the PR belt seam. This is done by forming a web loop and then immediately flattening the loop after passage of the seam through the transfer zone that includes two transfer BTR rolls with alternating transfer operations, but simultaneous transfer for short periods. Two vacuum assist rolls, one located between the two bias transfer rolls controls the formation of the web loop. A pair of nip forming rolls upstream of the first transfer station and a second vacuum assist roll downstream of the second transfer station control the size of the loop.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: November 26, 2013
    Assignee: Xerox Corporation
    Inventors: Frank A Porter, Kenneth P Moore, Bruce A Thompson, Todd M Uthman, Ron E Dufort, Venkata B Chivukula, Roger G. Leighton
  • Patent number: 8582128
    Abstract: A device includes: a receiver receiving a displacement of an image formation target area in a sub-scanning direction from a reference position on a continuous form with side portions having holes and with a page boundary per a length; a calculator calculating marker lengths of markers marking upper and lower ends of a page of the continuous form based on the displacement, a shortest distance to the holes from the page boundary, and a reference length for when the displacement is not specified for the markers; another calculator calculating start positions of the markers based on the displacement, the distance, the reference length, and a length of the target area in the sub-scanning direction; and a controller performing, with respect to an apparatus, control of the image formation of the markers in the side portions from the start positions over the marker lengths.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: November 12, 2013
    Assignee: Ricoh Company, Limited
    Inventor: Masakazu Nemoto
  • Patent number: 8565626
    Abstract: A control apparatus, connected to two image forming apparatuses each forming an image on one of a first face and a second face serving as image forming faces of a continuous recording paper, includes a receiving unit that receives, from each image forming apparatus, information regarding a transfer rate affecting condition that affects a difference in toner transfer rates of the image forming faces; a determining unit that determines, based on a standard amount of toner deposit and the transfer rate affecting condition regarding each of the first face and the second face, a target deposit amount representing a target amount of toner deposit in each of the two image forming apparatuses in such a way that the target deposit amounts have a difference corresponding to the difference in the toner transfer rate between the two image forming apparatuses.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: October 22, 2013
    Assignee: Ricoh Company, Limited
    Inventor: Masahiro Mizumo
  • Patent number: 8559864
    Abstract: A medium conveying device includes: an inclined roller that feeds a recording medium in a direction that is inclined from a conveying direction of the recording medium; and a counter member disposed at such a position as to be opposed to the inclined roller with the recording medium interposed in between and having a curved surface on a side of the inclined roller, and one of an outer circumferential surface of the inclined roller, a rotation axis of the inclined roller, and the curved surface of the counter member is inclined according to an angle between a feed direction of the inclined roller and the medium conveying direction and a radius of curvature of the curved surface so that the outer circumferential surface of the inclined roller and the curved surface of the counter member contact each other approximately in line contact.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: October 15, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Kenichirou Yano
  • Patent number: 8540441
    Abstract: A printing control apparatus may execute printing on a continuous sheet by using a printing unit. The printing control apparatus includes a reversal unit, an input unit, and a printing control unit. In executing printing by the printing unit on both surfaces of the continuous sheet, the reversal unit reverses the continuous sheet to execute printing on a second surface after executing printing on a first surface. If the printing on the first surface currently is being executed by the printing unit to execute two-sided printing of a preceding job based on a preceding job in a case where an instruction for interruption printing is input by the input unit, the printing control unit executes the interruption printing according to the instruction subsequent to the printing on the first surface of the continuous sheet based on the preceding job, and supplies the printed continuous sheet to the reversal unit.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: September 24, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayoshi Noguchi, Kazunari Shishido, Sho Nakamura, Atsushi Hirahara, Tatsuhiko Tomita
  • Patent number: 8538283
    Abstract: An image forming apparatus for printing an image on a continuous print medium includes an image processing unit for converting print data received to image data printable; a developer image forming unit for forming a developer image using specific developer according to the image data; a transfer unit for transporting the continuous print medium and transferring the developer image to the continuous print medium; and a control unit for instructing timings of the developer image forming unit to form the developer image and the transfer unit to transport the continuous print medium when the control unit receives a conversion process completion notice from the image processing unit. Further, it is arranged so that an initialization operation of the developer image forming unit is performed before the developer image forming unit forms the developer image.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: September 17, 2013
    Assignee: Oki Data Corporation
    Inventor: Koichi Negishi
  • Patent number: 8538306
    Abstract: An apparatus includes a photoreceptor belt, a fixed transfer roller positioned on the inside of the photoreceptor belt, and a movable transfer roller positioned on the outside of the photoreceptor belt. The fixed transfer roller and the movable transfer roller are positioned to form a nip, and the photoreceptor belt and a web of print media are positioned in the nip. Also, a support roller and a compensation roller contact the web of print media. The support roller is positioned between the compensation roller and the nip. A physical link is connected to the support roller and the compensation roller. The physical link moves the support roller and the compensation roller so as to keep a constant tension on the web of print media.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: September 17, 2013
    Assignee: Xerox Corporation
    Inventors: Ming Yang, Roger G. Leighton, Frank Albert Porter, Carlos Manuel Terrero
  • Patent number: 8532559
    Abstract: A print system includes: a first printer that performs printing on continuous-form paper; a second printer that performs printing on the continuous-form paper printed by the first printer; a measuring unit that measures a paper length between the first printer and the second printer; a calculator that calculates a post-conveyance amount as a distance to convey the continuous-form paper after the printing, for the first printer or the second printer, based on the paper length measured by the measuring unit; and a conveyance operation controller that controls post-conveyance operations in the first printer and the second printer based on the post-conveyance amount calculated by the calculator.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: September 10, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Daisuke Fujii
  • Patent number: 8529144
    Abstract: According to aspects of the embodiments, there is provided an apparatus and method to provide a modification of the paper path in an image forming system including a plurality of printing modules, and having a simplex mode that an image is formed on a front surface of a continuous medium, and a duplex mode that an image is also formed on a rear surface of a continuous medium, the image forming system further comprises a bidirectional urge unit added in the middle of the paper path tunnel. Placement of a bidirectional urge unit allows the continuous medium to be transported in two directions.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: September 10, 2013
    Assignee: Xerox Corporation
    Inventor: Etienne Vanheuverzwijn
  • Patent number: 8526873
    Abstract: A moving unit causes a relative movement of a web and a mark detecting unit for detecting a ground color of the web and a mark color in a predetermined direction. A measuring unit measures a measurement value corresponding to a moving amount of the mark detecting unit with respect to the web in a time from when a detected color is switched from the ground color to the mark color till when a detected color is back to the ground color. A setting unit sets a threshold used for determining whether the color detected is the ground color or the mark color on the basis of the mark color detected by the mark detecting unit at the time when the mark detecting unit is moved in a reverse direction for a distance of half the measurement value since the color detected is back to the ground color.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: September 3, 2013
    Assignee: Ricoh Company, Ltd.
    Inventor: Toshihide Inaba
  • Patent number: 8515329
    Abstract: A sheet is placed on a sheet feed unit. A main-scanning sensor detects first detection information for identifying a sheet size in a main-scanning direction and a sub-scanning sensor detects second detection information for identifying a sheet size in a sub-scanning direction. A sheet sensor detects presence of the sheet on the sheet feed unit. It is monitored whether the sheet sensor has detected a sheet and a timer starts counting a first elapsed time from a time point at which the sheet sensor detects a sheet. A size identifying unit identifies, when the first elapsed time exceeds a first predetermined set time, a sheet size based on the first and the second detection information.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: August 20, 2013
    Assignee: Ricoh Company, Limited
    Inventor: Kiichirou Shimizu
  • Patent number: 8515328
    Abstract: A medium conveying apparatus includes: a conveying mechanism that conveys a recording medium that extends long continuously in one direction, a conveying direction of the recording medium being the same as the one direction; a detecting unit that detects a detection subject mark formed on the recording medium; and a moving mechanism that moves the detecting unit in a direction that crosses the conveying direction, and a plurality of detection subject marks are formed on the recording medium in such a manner that they are arranged in the direction in which the recording medium extends long continuously and that a mark width in the direction that crosses the conveying direction changes as the position goes along the conveying direction.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: August 20, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hiroyuki Aoki
  • Patent number: 8489012
    Abstract: An automated paper handling system for sending print media through a printer comprising a scan module for scanning print media and producing raw data regarding characteristics of the print media. The paper handling system also has a controller comprising a memory and a processor for receiving and processing the raw data to produce an information set. One or more connection ports connect the controller to a group of equipment, the group may comprise a printer, a paper detector, a cutting system, or an alignment system.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: July 16, 2013
    Assignee: Neuralog, LP
    Inventor: Ken Land
  • Patent number: 8449104
    Abstract: A conveyance apparatus includes a holding unit configured to hold a roll sheet, a conveyance unit configured to convey the roll sheet in a first direction in which the roll sheet is unrolled and a second direction opposite from the first direction, and a control unit configured to control the drive of the conveyance unit. The amount of drive per unit conveyance distance at the time when the conveyance unit conveys the roll sheet is controlled so as to be larger in the conveyance in the first direction than in the conveyance in the second direction.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: May 28, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keiji Okazawa
  • Patent number: 8437681
    Abstract: In a method or system for controlling a printer or copier, a separation of a position mark printed on a web-shaped carrier material in a longitudinal direction of the carrier material relative to a transverse fold present in the carrier material is preset as a parameter. Arrival of the position mark is monitored with a sensor arrangement arranged before a transfer printing area while the carrier material is moved past the sensor arrangement. A real position of the transverse fold is determined for a position of arrival of the position mark at the sensor arrangement. The transverse fold is conveyed to a desired position by consideration of the real position of the transverse fold.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: May 7, 2013
    Assignee: OcéPrinting Systems GmbH
    Inventors: Hans Winter, Günther Gassner
  • Patent number: 8433232
    Abstract: An image forming system includes: first and second image forming units that respectively form images on first and second surfaces of a recording medium formed into a belt shape while transporting the recording medium spanning the first and second image forming units; first and second transportation controllers that control a pre-transportation operation performed from a transportation start of the recording medium to arrival at a predetermined transportation speed, and a post-transportation operation including return transportation of the recording medium to an upstream side in a transporting direction performed from a start of a transportation stop to a stop of the recording medium; and a recording medium amount setting unit that adjusts transportation amounts of the recording medium in the pre-transportation and post-transportation operations, and thereby sets a recording medium amount existing between the first and second image forming units to a predetermined recording medium amount after the transportati
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: April 30, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Daisuke Fujii
  • Patent number: 8428482
    Abstract: An image forming apparatus includes a first acquiring unit, a determination unit, a second acquiring unit, and a notifying unit. The first acquiring unit acquires first settable region information on a plane-shaped recording medium in other image forming apparatus. The first settable region information indicates a first settable region on which a registration mark is settable. The determination unit determines a first region based on the first settable region information. The first region is a region on which the registration mark is formable in a cascade printing system including the image forming apparatus and the other image forming apparatus. The second acquiring unit acquires second settable region information on the plane-shaped recording medium. The second settable region information indicates a second settable region on which the registration mark is formable in the plane-shaped recording medium. The notifying unit provides invalidity information indicating the registration mark is possible invalid.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: April 23, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Kenichirou Hotokeishi
  • Publication number: 20130094873
    Abstract: According to aspects of the embodiments, there is provided an apparatus and method to use a fuser speed algorithm to engage a web print media to a rotatable image carrier (PR) during transfer of toner to paper without additional parts or tight web requirement. The fuser speed algorithm can drive the web through a sheet fed printer efficiently by only using the fuser nip as the main drive. The fuser speed algorithm leverages the advantage of fuser speed to enable the required speed and tension at transfer for proper engagement, then release tension to create slack web at transfer so the PR drives create a buckle zone prior to the fuser system. The fuser speed algorithm drives the fuser at the nominal desired speed which is slower than PR speed to maintain the buckle zone.
    Type: Application
    Filed: October 14, 2011
    Publication date: April 18, 2013
    Applicant: XEROX CORPORATION
    Inventor: Eliud Robles FLORES
  • Patent number: 8355159
    Abstract: A method of synchronizing the timing of a plurality of physically coupled print engines wherein the receiving sheet is inverted between a first and a second print engine including determining any change in the speed of the master print engine relative to the speed at original set up and adjusting the timing parameters within the slave print engines based on the speed of the master engine.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: January 15, 2013
    Assignee: Eastman Kodak Company
    Inventors: Michael T. Dobbertin, Thomas K. Sciurba