Document Handling Patents (Class 399/16)
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Publication number: 20100021185Abstract: An image forming apparatus includes an image forming unit; a transport roller transporting the sheet to the image forming unit; a stacking unit stacking a sheet; a manual feed path extending from a manual feed slot to the transport roller; a feed path extending from the stacking unit to the transport roller; a feed unit transporting the sheet of the stacking unit to the transport roller through the feed path; a first detection unit detecting a sheet inserted into the manual feed path from the manual feed slot; and a control unit, when the first detection unit detects the sheet inserted from the manual feed slot while an operation to feed the sheet of the stacking unit to the image forming unit by the feed unit and the transport roller, and an image forming operation by the image forming unit are executed, aborting the image forming operation.Type: ApplicationFiled: July 28, 2009Publication date: January 28, 2010Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Tetsuya OKANO
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Patent number: 7636100Abstract: A structure for a transport path for a recording material within a transfer portion varies between a margin-less print mode and a normal print mode. A necessity of cleaning of a transfer member also varies between both modes. Thus, provided is an image forming apparatus in which the structure of the transfer portion is switched between the normal print and the margin-less print, and the margin-less print cannot be carried out with a structure of the transfer portion for the normal print. This is because, when the so-called margin-less print is carried out with the structure of the transfer portion for the normal print, there is a possibility that an image defect of a print image to be outputted is caused, or a stain of toner on a rear surface of the recording material is caused.Type: GrantFiled: July 3, 2006Date of Patent: December 22, 2009Assignee: Canon Kabushiki KaishaInventor: Yoichiro Maebashi
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Patent number: 7636526Abstract: An image forming apparatus of the invention conveys paper fed by a paper feeding mechanism piece by piece to a paper discharging unit through a paper conveying path. An image forming unit is arranged in a midway portion of this paper conveying path and executes an image forming process for printing an image based on image data on paper being conveyed. A sensor that detects a type of the paper conveyed is arranged on an upstream side with respect to the image forming unit on the paper conveying path. Image forming process conditions for the image forming unit are set in accordance with a detection result of the sensor. When the paper fed is paper not detected by the sensor, the image forming process is not started. After paper type detection by the sensor, the paper is directly discharged. When the paper fed is paper of the same type as paper detected by the sensor, the image forming process is started without performing paper type detection.Type: GrantFiled: March 16, 2007Date of Patent: December 22, 2009Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Reiji Murakami
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Publication number: 20090310980Abstract: A paper sheet conveying apparatus includes: a paper sheet conveying portion that conveys a paper sheet and has an opening; a distance detection portion that projects light to a paper sheet through the opening, receives reflected light from the paper sheet, and detects a distance to the paper sheet; and a cover member that has a light projecting area portion which transmits the projected light therethrough, a light receiving area portion which transmits the reflected light therethrough, and a light block portion which is disposed between the light projecting area portion and the light receiving area portion and blocks flare light reflected by the light projecting area portion, wherein the cover member is disposed at a predetermined distance from a conveying path surface of the paper sheet conveying portion over the same side with respect to the distance detection portion.Type: ApplicationFiled: June 8, 2009Publication date: December 17, 2009Applicant: KYOCERA MITA CORPORATIONInventors: Yoshiaki Tashiro, Naoki Yamane, Hironori Daigo
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Publication number: 20090297173Abstract: The image forming apparatus includes an intermediate transfer member onto which an image is transferred, a transfer part transferring the image formed on the intermediate transfer member onto a transfer, a detection part detecting a transfer which is conveyed, and a both-surface conveying part reversing the transfer with an image being formed on a first surface, and conveying the transfer to the transfer part again, wherein a timing when forming an image on a second surface of the transfer by the image forming part is switched based on a size in a conveying direction of a transfer which is designated and a size of the conveyed transfer.Type: ApplicationFiled: May 26, 2009Publication date: December 3, 2009Applicant: CANON KABUSHIKI KAISHAInventor: Yuya Kojima
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Publication number: 20090274473Abstract: A detecting unit detects a conveying speed of a conveyer member. A driving unit drives the conveyer member. A first control unit performs a first feedback control of the conveying speed based on detected conveying speed and a predetermined target conveying speed. A second control unit detects a rotation speed of the driving unit and performs a second feedback control of the rotation speed based on detected rotation speed and a predetermined target rotation speed. When a determining unit determines that the detecting unit is anomalous, a switching unit switches from the first feedback control to the second feedback control.Type: ApplicationFiled: April 17, 2009Publication date: November 5, 2009Inventor: Seiichi Handa
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Patent number: 7613406Abstract: The image forming apparatus includes a conductive member provided in a conveying path of a recording material, a voltage applying device for applying a voltage to the conductive member, a current detecting device for detecting a current flowing in the conductive member when the recording material passes through the conductive member to which a voltage is applied by the voltage applying device, and a judgment device for judging, based on an output from the current detecting device, whether a conductive foreign object is present on the recording material. Thus there is provided an image forming apparatus capable of detecting a foreign object attached to a recording material by a simple method.Type: GrantFiled: April 19, 2006Date of Patent: November 3, 2009Assignee: Canon Kabushiki KaishaInventor: Masami Takeda
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Publication number: 20090245819Abstract: An image forming apparatus includes an image forming portion for forming an image using developer; a transfer unit for transferring the image to a medium transported thereto; a first detection unit disposed at a specific position for detecting the image thus transferred; and a second detection unit disposed to face the first detection unit for detecting a distance to the medium so that the first detection unit detects a detection result of the second detection unit.Type: ApplicationFiled: February 26, 2009Publication date: October 1, 2009Inventor: Toshimasa Shiobara
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Publication number: 20090245818Abstract: An image forming apparatus includes: a paper feeding device that supplies paper; a reception unit that receives a print instruction including output control information in which a paper type is designated by page; a setting unit that sets a priority in paper change by paper type based on the output control information included in the print instruction received by the reception unit; an instruction unit that issues a paper change instruction based on the priority set by the setting unit; and a printing device that performs printing on paper of a type designated by the instruction unit.Type: ApplicationFiled: October 29, 2008Publication date: October 1, 2009Applicant: FUJI XEROX CO., LTD.Inventor: Masaya MIYAZAKI
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Patent number: 7596328Abstract: An efficient sensing system. The efficient sensing system includes a first mechanism for sensing and a second mechanism for sensing. A third mechanism selectively polls the second mechanism upon receipt of a signal from the first mechanism. In a specific embodiment, the first mechanism includes an early warning sensor, and the second mechanism includes an accurate sensor. In the specific embodiment, the third mechanism includes a controller in communication with the accurate sensor and the early warning sensor. The controller samples the accurate sensor at the sampling rate in response to the signal.Type: GrantFiled: April 22, 2003Date of Patent: September 29, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Joseph D Barbera, Aaron B. Weast
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Publication number: 20090232521Abstract: An image forming apparatus which enables even a user who is not well informed about the mechanism of the image forming apparatus to easily perform operation check on a component roller. The image forming apparatus is provided with a sheet conveying mechanism including a plurality of component rollers. A CPU of a controller of the image forming apparatus selects a component roller to be subjected to operation check from the component rollers. Then, the CPU determines a sheet conveying path to pass the selected component roller. Further, the CPU controls the sheet conveying mechanism such that a sheet is conveyed along the determined conveying path. The CPU detects the conveyance status of a sheet while the sheet is being conveyed along the conveying path.Type: ApplicationFiled: March 16, 2009Publication date: September 17, 2009Applicant: CANON KABUSHIKI KAISHAInventor: Ryotaro Imine
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Publication number: 20090226191Abstract: A control method for an image forming system capable of preventing reduction of the ability of the system even if a shift transportation function becomes an abnormal condition. An image forming apparatus forms an image on a sheet. A first sheet process apparatus has a first moving unit receiving the sheet on which the image is formed and moving the sheet in a width direction. In a determination step, it is determined whether a second sheet process apparatus having a second moving unit moving the sheet in the width direction is connected to an upstream side of the first sheet process apparatus. In a detection step, it is detected an abnormal condition of the first moving unit. In a sheet movement step, the second moving unit moves the sheet in the width direction if an abnormal condition is detected and the second sheet process apparatus is connected.Type: ApplicationFiled: February 24, 2009Publication date: September 10, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Toshiyuki Miyake, Manabu Yamauchi, Naoto Watanabe, Takayuki Fujii, Shunsuke Nishimura, Satoru Yamamoto, Yushi Oka, Takashi Yokoya, Hidenori Matsumoto
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Publication number: 20090226190Abstract: An image forming device includes a main body unit; an image forming device disposed in the main body unit; a first structural member capable of dividing and moving relative to a third structural member; a second structural member capable of dividing and moving relative to the third structural member and the first structural member; a first transport path situated between the first structural member and the second structural member; a second transport path situated between the second structural member and the third structural member; a sensor for detecting the medium; a first positioning unit for restricting a movement of the second structural member; a second positioning unit for engaging the first structural member with the third structural member; and a control unit for sending a signal to restrict a movement of the first structural member to a specific position based on a detection result of the sensor.Type: ApplicationFiled: March 19, 2009Publication date: September 10, 2009Inventor: Takeshi Asaba
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Patent number: 7587146Abstract: A method of operating a printer comprising at least one tray for retaining print media comprises reading a code associated with a quantity of print media, and associating the code with loading the quantity of print media in the tray in a database. If the print media in the tray is deemed unusual, based on types of media placed in the tray in the past, a human user near the printer is notified. The code on the print media is read through a wireless device in direct communication with a server retaining the database for a population of printers.Type: GrantFiled: August 31, 2006Date of Patent: September 8, 2009Assignee: Xerox CorporationInventor: Richard T. Horn
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Patent number: 7580646Abstract: An image forming apparatus that is capable of normally performing second side printing on a transfer material, even if the transfer material put on standby after completion of first side printing is pulled out by a user. A transfer material having image formed on its first side is fed until it is partly exposed to the outside of a printer, and is then fed to a refeeding path in the printer and further fed to a standby position prior to image formation on the second side of the transfer material. When it is detected that the transfer material caused to stop at the standby position is pulled out by a user, a warning to stop pulling out the transfer material is given to the user.Type: GrantFiled: April 18, 2008Date of Patent: August 25, 2009Assignee: Canon Kabushiki KaishaInventors: Eiichi Motoyama, Yoshihito Osari, Kuniyasu Kimura, Hiroaki Tomiyasu, Takahiko Yamaoka, Yuichi Yamamoto
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Patent number: 7577372Abstract: An image forming apparatus of the invention conveys paper fed by a paper feeding mechanism piece by piece to a paper discharging unit through a paper conveying path. An image forming unit is arranged in a midway portion of this paper conveying path and executes an image forming process for printing an image based on image data on paper being conveyed. A sensor that detects a type of the paper conveyed is arranged on an upstream side with respect to the image forming unit on the paper conveying path. Image forming process conditions for the image forming unit are set in accordance with a detection result of the sensor. When the paper fed to the paper conveying path is paper not detected by the sensor, the image forming process is started awaiting a detection result by the sensor. On the other hand, when the paper is detected by the sensor, the image forming process is started without awaiting paper type detection.Type: GrantFiled: March 16, 2007Date of Patent: August 18, 2009Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Reiji Murakami
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Publication number: 20090196634Abstract: An area calculating unit calculates an image area of a toner image formed on a sheet recording member. A behavior detecting unit detects behavior of the recording member fed out of a conveying nip formed by a pair of conveying members. A thickness obtaining unit obtains thickness information of the recording member. A width obtaining unit obtains width information of the recording member. An index calculating unit calculates an index value indicating windability of the recording member with respect to the conveying members based on the width information as well as the image area, the behavior, and the thickness information.Type: ApplicationFiled: January 27, 2009Publication date: August 6, 2009Inventors: Osamu Satoh, Yasushi Nakazato, Kohji Ue, Jun Yamane
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Publication number: 20090190936Abstract: In an image forming device including a control unit to control the image forming device to perform a job of image formation, the control unit is arranged so that, when a size of a printing medium detected by a detection unit is not in agreement with a printing medium size indicated by information contained in a printing request, the control unit causes the printing medium to be ejected from the image forming device without causing an image formation unit to form an image on the printing medium, and causes an image holding unit to hold data of the image.Type: ApplicationFiled: January 21, 2009Publication date: July 30, 2009Inventors: Daisuke Masui, Nobuhiro Shindo, Yutaka Matsumoto, Yuka Saito
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Publication number: 20090185813Abstract: A disclosed image forming apparatus includes a carriage having a head for jetting droplets; a pattern forming unit configured to form, on a belt, a pattern used for detecting displacement of landing positions of the droplets; a reading unit configured to scan the belt before the pattern formation to output a first result, and scan the pattern to output a second result; a correcting unit configured to correct the displacement based on the second result; a frequency analyzing unit configured to calculate frequencies of the belt and amplitudes of respective frequency components based on the first result; and a peak frequency calculating unit configured to calculate peak frequencies of the belt based on the frequencies of the belt and the amplitudes of the frequency components, the peak frequencies being frequency components whose amplitude exceeds a predetermined level. The pattern is formed at a frequency different from the peak frequencies.Type: ApplicationFiled: January 16, 2009Publication date: July 23, 2009Applicant: RICOH COMPANY, LTD.Inventors: TAKUMI HAGIWARA, KENICHI KAWABATA, MAMORU YORIMOTO, TAKAYUKI NIIHARA, SHINICHIRO NARUSE, TETSU MORINO
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Patent number: 7561316Abstract: One or more ink-usage parameters are adjusted based on ink remaining and historical ink usage, to reduce ink usage for an image to be printed on a sheet of media with ink. The image is printed on the sheet of media with the ink, in accordance with the ink-usage parameters. Adjustment of ink-usage parameters and printing an image on a sheet of media with the ink are repeated for each additional image to be printed on a sheet of media.Type: GrantFiled: January 15, 2005Date of Patent: July 14, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jay S. Gondek, Morgan T. Schramm
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Patent number: 7558491Abstract: An image forming apparatus having a safety sensor. At least one safety sensor is mounted on an inner wall of the main body to detect an object entering a space in the main body, other than a space corresponding to a normal moving path of the printing medium. A control unit controls an image formation unit in response to a signal from the safety sensor, to establish a safe condition within the main body.Type: GrantFiled: May 12, 2006Date of Patent: July 7, 2009Assignee: Samsung Electronics Co., Ltd.Inventor: Kwang-sung Park
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Patent number: 7558493Abstract: A full-loading sensing device and method thereof is provided for an image forming apparatus. The full-loading sensing device includes at least one lever rotated in different directions from reference locations by loading of a discharged paper and opening of a jam removal cover, respectively, and an optical sensor for sensing different rates of change in an amount of light corresponding to respective rotational directions of the lever. It is thereby possible to provide a single sensing mechanism that is capable of sensing and distinguishing both a full-loading state and a jam removal cover-open state.Type: GrantFiled: August 25, 2006Date of Patent: July 7, 2009Assignee: Samsung Electronics Co., Ltd.Inventor: Jae-min Kwon
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Patent number: 7558492Abstract: In an image forming apparatus identifying recording materials to decide printing conditions, information concerning the type of the recording materials identified by a recording material identification unit is stored for each paper feed port. In a subsequent print job to be printed, the use of the information having been stored in advance makes it possible to omit the recording material identification process for the subsequent recording materials. This stored information includes individual information for each recording material and a determined value obtained from a plurality of a plurality of pieces of individual information. Once the determined value is set, the determined value is used thereafter. These pieces of stored individual information and the determined value are initialized when a change of paper or the like is detected at the paper feed port corresponding to the value and to the information.Type: GrantFiled: July 25, 2006Date of Patent: July 7, 2009Assignee: Canon Kabushiki KaishaInventor: Masaru Aoki
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Publication number: 20090162080Abstract: An image forming apparatus is provided. The image forming apparatus includes a fixing unit that is configured to fix a developing material on a sheet; a plurality of a pair of rollers that discharge the sheet conveyed from the fixing unit; and a sheet detection unit that detects the sheet conveyed from the fixing unit, the sheet detection unit comprising an actuator for detecting the sheet conveyed from the fixing unit, wherein the actuator of the sheet detection unit is disposed between the fixing unit and the plurality of the pair of the rollers on a conveyance path and is disposed within a width of one of the rollers when viewed from a sheet conveyance direction.Type: ApplicationFiled: December 16, 2008Publication date: June 25, 2009Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Takuji MATSUNO
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Publication number: 20090110410Abstract: The present application is directed to methods for determining the location and movement of a media sheet within an image forming device. In one embodiment, the media sheet is positioned within an input area of the device. A pick roller is rotated to move the sheet from the input area and into a media path. An encoder roller may be positioned in contact with the sheet to detect the actual movement of the sheet from the input area. A controller may determine the expected amount of movement based on the movement of the pick roller and compare this amount with an actual amount of movement based on the movement of the encoder roller.Type: ApplicationFiled: December 31, 2008Publication date: April 30, 2009Applicant: LEXMARK INTERNATIONAL, INCInventors: Darin M. Gettelfinger, John Spicer, Paul Douglas Horrall, Christopher Kent Washing, Franklin Joseph Palumbo, LARRY STEVEN FOSTER
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Patent number: 7519319Abstract: An image forming device includes an intermediate transfer member to which a toner image formed on an image bearing member is primarily transferred and which is able to simultaneously support a plurality of toner images, a secondary transfer member for secondarily transferring a toner image held on the intermediate transfer member to a sheet, a cleaning unit for removing the toner images from the intermediate transfer member after the secondary transfer, and a feeding member for feeding a sheet into the secondary transfer member. The secondary transfer member features a sheet-delay transfer mode in which a subsequent toner image on the intermediate transfer member is transferred if a previous toner image on the intermediate transfer member is out of sync with the timing at which the toner image is transferred to the fed sheet.Type: GrantFiled: February 14, 2006Date of Patent: April 14, 2009Assignee: Kyocera Mita COrporationInventors: Shinya Matsui, Hidehiro Tabuchi
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Patent number: 7515871Abstract: An image forming system having an image forming apparatus and a post-processing apparatus having a sorting function, a stapling function, etc. The post-processing apparatus is movable between a first position to receive long papers and a second position to receive non-long papers. When the post-processing apparatus is set in the second position, a paper inlet port of the post-processing apparatus faces a paper ejection port of the image forming apparatus.Type: GrantFiled: July 15, 2005Date of Patent: April 7, 2009Assignee: Konica Minolta Business Technologies, Inc.Inventors: Hideo Mae, Kazuo Okunishi, Tatsutoshi Yamada, Atsushi Kawai, Yoshihiko Yoshizaki, Kou Yamada
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Patent number: 7509066Abstract: An image forming apparatus has transfer rollers for transferring an unfixed image, fixing rollers with a changeable conveying speed, discharging rollers with a changeable conveying speed thereof and for discharging the recording material on which the image has been fixed by the pair of fixing rollers, a loop detecting sensor for detecting the loop of the recording material between the transfer rollers and the fixing rollers, and a control for changing the conveying speed of the fixing rollers on the basis of the detection of the loop detecting sensor so that the loop of the recording material is maintained with a predetermined range, wherein the control board controls the conveying speed of the discharging rollers so as to become equal to the conveying speed of the fixing rollers after the recording material has passed the transfer rollers.Type: GrantFiled: June 27, 2007Date of Patent: March 24, 2009Assignee: Canon Kabushiki KaishaInventor: Kohei Koshida
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Patent number: 7499654Abstract: An image recording apparatus having a transport path of a recording material, and an image recording unit in the transport path which records an image in the recording material in the process of transporting the recording material in the transport path. It includes: a recording material detection unit which is provided in the transport path and detects the edge at a side end of the recording material transported in the transport path; an operation mode determination unit for discriminating whether or not incorrect detection can be performed in detecting the edge by the recording material detection unit, and determining an operation mode based on the discrimination result; and a control unit for controlling by the image recording unit an image recording process on the recording material in the operation mode.Type: GrantFiled: February 2, 2006Date of Patent: March 3, 2009Assignee: Olympus CorporationInventor: Suguru Mihara
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Publication number: 20090034992Abstract: An image forming apparatus includes an endless belt type transfer member configured to carry an image formed with developer of a plurality of colors, a drive roller configured to drive the transfer member by rotating while contacting the transfer member, a first detection unit configured to detect a mark provided on the transfer member, a second detection unit configured to detect the mark at a position different from the position of the first detection unit in a conveyance direction of the transfer member, and a correction unit configured to correct a conveyance speed of the transfer member using a difference between respective times at which the first and second detection units detect the mark. The first and second detection units are located such that an interval between respective positions at which the first and second detection units detect the mark is an integral multiple of a perimeter of the drive roller.Type: ApplicationFiled: July 30, 2008Publication date: February 5, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Jun Yamaguchi, Hidehiko Kinoshita, Masaaki Moriya, Kenji Fukushi, Yousuke Hata
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Publication number: 20090022505Abstract: A sheet transport apparatus includes a pair of rollers for transporting a sheet and a sheet detection device for detecting the sheet transported by the pair of rollers. The sheet detection device includes a flag that is displaceable when urged by the sheet transported by the pair of rollers and a single-chip acceleration sensor attached to the flag to detect the arrival of the sheet. When the sheet is brought into contact with the flag to rotate the flag, the acceleration sensor detects the roll acceleration of the flag so as to determine the timing of stopping the pair of rollers on the basis of a detection signal.Type: ApplicationFiled: September 26, 2008Publication date: January 22, 2009Applicant: CANON KABUSHIKI KAISHAInventor: Koji Nojima
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Patent number: 7480466Abstract: An image recording apparatus includes a print engine that transfers a toner image on a recording medium, and a medium sensor disposed at an entrance of the print engine. The medium sensor outputs a detection signal when a recording medium passes by the medium sensor. When a following one of two consecutive pages of the recording medium is jammed at an entrance of the print engine, a controller completes a printing operation of a preceding one of two consecutive pages and indicates the jam of the following one of the two consecutive pages. Alternatively, the controller may control the fixing unit to a predetermined temperature, subsequently allowing the recording medium to pass through the fixing unit at a first speed and to be discharged. Still alternatively, the controller causes the print engine to stop and subsequently discharges the recording medium.Type: GrantFiled: February 13, 2003Date of Patent: January 20, 2009Assignee: Oki Data CorporationInventor: Takao Uchida
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Publication number: 20090003848Abstract: A printing apparatus includes a multifeed sensor to detect whether printing paper sheets are multifed, a measuring unit to measure an interval between the multifed paper sheets, if the multifeed sensor detects that the printing paper sheets are multifed, and a control unit to delay printing using the measured interval so that a lastly fed printing paper sheet is printed. As a result, a printing error due to multifeed of two or more printing paper sheets can be avoided.Type: ApplicationFiled: June 10, 2008Publication date: January 1, 2009Applicant: Samsung Electronics Co., Ltd.Inventors: Gyeong-hun Jo, Geun-Chul Lee
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Publication number: 20080310863Abstract: A paper type determination device of the invention forms images of plural light spots modulated at frequencies different from one another and aligned about a reference point on one surface of a sheet of paper subjected to determination. A photodetection device is disposed on the other surface side of the sheet of paper. In the photodetection device, a detection field of view having a center common with the reference point is provided, so that light coming within the detection field of view from the respective light spots by passing through the sheet of paper is detected. Signals superimposed in a detection signal from the photodetection device are distinguished on the basis of respective frequencies by a wave filter circuit. A diffusing characteristic of the sheet of paper is obtained from amplitudes of the signals distinguished on the basis of the respective frequencies, and the paper type is determined on the basis of this diffusing characteristic.Type: ApplicationFiled: April 11, 2007Publication date: December 18, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Yoshinori Honguh
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Publication number: 20080292328Abstract: An object of the present invention is, in an image-forming machine equipped with plural paper feeders that feed paper to a drum unit at different paper feed speeds due to the difference in the shapes of paper traveling routes, to control the image-forming machine so as to select a paper feeder suitable for the condition of printing-speed-priority. A stencil printing machine has three paper feeders; a paper feed table, a first tray, and a second tray. The maximum allowable printing speeds to a drum unit of the three paper feeders: differ from each other in accordance with the difference in the shapes of traveling routes; increase in the order of the paper feed table, the first tray, and then the second tray; and are stored as data. When a user carries out printing at the setting of speed-priority, a control unit of the machine and a paper feeder selection device select the paper feeder of the highest maximum allowable image-forming speed and carry out the printing.Type: ApplicationFiled: May 5, 2008Publication date: November 27, 2008Applicant: RISO KAGAKU CORPORATIONInventor: Kazuhiro Kato
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Publication number: 20080292327Abstract: An image forming device of the present invention includes searching section that is configured to search whether a sheet of paper having a suitable size for an essential print object in order to print out the essential print object. In addition, the image forming device includes selecting section and printing section. The selecting section is configured to perform a selection of a sheet of secondary suitable-sized paper, the size of which is larger than the sheet of paper having the suitable size for the essential print object, when the sheet of paper having the suitable size for the essential print object does not exist. The printing section is configured to print the essential print object on the sheet of secondary suitable-sized paper. Accordingly, the essential print object is to be absolutely printed on some form of paper.Type: ApplicationFiled: April 28, 2008Publication date: November 27, 2008Applicant: KYOCERA MITA CORPORATIONInventors: Kyoichiro HAYASHI, Keiko Morita, Yasuhiro Iwashima
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Publication number: 20080279571Abstract: A printer apparatus is disclosed. The printer includes a medium feeding passage for conveying a medium; print head for performing a spacing and for performing a printing processing on the medium; a detector for detecting a first end position in a widthwise direction of the medium at a first position in a medium conveyance direction and for detecting a second end position in the widthwise direction of the medium at a second position in the medium conveyance direction; and a comparator for comparing the first end position with the second end position detected with the detector. The control of the print head is performed according to the compared result from the comparator.Type: ApplicationFiled: July 16, 2008Publication date: November 13, 2008Applicant: OKI DATA CORPORATIONInventors: Yasuo Noda, Hiroaki Ono, Hironobu Sakai, Naoki Sato
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Patent number: 7440880Abstract: A computer readable design support program for inspecting a processing operation of software that controls a sheet conveyance mechanism by displaying the behavior of feeding a virtual sheet from a virtual sheet stock portion on a display portion, includes a sheets number setting procedure of setting the sheets number of virtual sheets stored in the virtual sheet stock portion, a sheet feed display procedure of displaying the behavior of feeding the virtual sheet from the virtual sheet stock portion on the display portion, a stored sheets number subtraction procedure of subtracting the stored sheets number of virtual sheets corresponding to the virtual sheet stock portion to which the virtual sheet is supplied in the sheet feed display procedure, a judgment procedure of judging whether or not the virtual sheet is used up in the virtual sheet stock portion where the stored sheets number of virtual sheets is subtracted in the stored sheets number subtraction procedure, and a paper out display procedure of displaType: GrantFiled: October 11, 2005Date of Patent: October 21, 2008Assignee: Canon Kabushiki KaishaInventors: Hideyuki Ikegami, Atsushi Chaki, Satoru Yamamoto, Masahiro Serizawa, Akira Morisawa
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Publication number: 20080240744Abstract: An image forming apparatus includes an output control unit to change an output of an optical sensor to collectively recognize a plurality of print processes for a print job. The output control unit includes a first actuator to recognize whether paper is present in a printing medium cassette and a second actuator to recognize whether paper is being conveyed. This makes it possible to recognize whether paper is present in a printing medium cassette and whether paper is being conveyed based on the output of the optical sensor, thereby reducing a financial burden and preventing a reduction in a task efficiency of an optical sensor installation.Type: ApplicationFiled: March 11, 2008Publication date: October 2, 2008Applicant: Samsung Electronics Co., Ltd.Inventor: Chang Hyeon SHIM
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Publication number: 20080240743Abstract: A sheet-conveying apparatus and a method for detecting multiple-sheet feeding thereof are provided. The sheet-conveying apparatus includes a passageway, a sheet-transporting mechanism and a sheet-detecting device. The sheet-detecting device includes a first transmitter, a first receiver, a second transmitter and a second receiver. The first receiver is for receiving a first signal of a first intensity transmitted from the first transmitter. The second receiver is for receiving a second signal of a second intensity transmitted from the second transmitter. The second intensity of the second signal is not equal to the first intensity of the first signal. The sheet-detecting device further includes an analysis unit for determining if the multiple sheets are conveyed in the passageway, according to the intensities of the signals respectively received by the first receiver and the second receiver.Type: ApplicationFiled: January 9, 2008Publication date: October 2, 2008Applicant: AVISION INC.Inventors: Yen-Cheng Chen, Jen-Chien Chang
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Publication number: 20080232827Abstract: An image forming apparatus and an image forming method in the invention include a scanner unit, an image forming unit, and a discarding unit. When time during which a recording medium having an image formed thereon is discharged to a paper discharge tray has exceeded a set time set in advance, the recording medium is discarded to the discarding unit to prevent the recording medium from being inspected by a third party and secure confidentiality.Type: ApplicationFiled: March 22, 2007Publication date: September 25, 2008Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Masao Yamaguchi, Haruhiko Ishida, Sunao Tabata, Takahiro Fuchigami, Hiroyuki Kato
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Image forming apparatus with variable convey speed control between transfer device and fixing device
Patent number: 7426353Abstract: In a construction for forming images on the both surfaces of a sheet, a speed controlling device for effecting the conveyance control of the sheet between a transfer device and a fixing device controls, when the image is to be formed on a first surface, the sheet conveying speed between the transfer device and the fixing device on the basis of loop detection by a loop detecting sensor provided between the transfer device and the fixing device so that a loop formed in the sheet may be maintained within a predetermined range. Also, when the image is to be formed on a second surface, the speed controlling device controls the sheet conveying speed between the transfer device and the fixing device on the basis of the average sheet conveying speed between the transfer device and the fixing device when the image has been formed on the first surface.Type: GrantFiled: November 14, 2006Date of Patent: September 16, 2008Assignee: Canon Kabushiki KaishaInventor: Hiroyuki Sakakibara -
Publication number: 20080219682Abstract: An image forming apparatus is provided with: an image forming unit that forms an image on a medium according an image forming condition; a speed changing unit that changes an image forming speed of the image forming unit between a plurality of image forming speeds including a first image forming speed; an adjusting unit that adjusts the image forming condition set in the image forming unit; a measuring unit that measures an elapsed state after the image forming condition is adjusted for the last time at the first image forming speed in the image forming unit, and outputs a measured value indicative of the elapsed state; and a determination unit that determines, according to the elapsed state, whether or not to adjust the image forming condition before the image forming unit starts forming an image at the first image forming speed.Type: ApplicationFiled: February 1, 2008Publication date: September 11, 2008Applicant: Fuji Xerox Co., Ltd.Inventors: Naoya YAMASAKI, Matsuyuki Aoki, Shunichiro Shishikura, Yasunori Unagida, Satoshi Tanaka
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Publication number: 20080205912Abstract: In an image forming apparatus, papers are taken in one by one using an auto document feeder (ADF) provided with a media sensor to determine the type of papers and successively carried to the reading position while the type of the papers are determined and displayed on the control panel. By inputting the type of image forming media corresponding to the type being displayed from the control panel, an image is formed at a desired image quality.Type: ApplicationFiled: February 23, 2007Publication date: August 28, 2008Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventor: Masaya Arakawa
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Publication number: 20080205913Abstract: An image forming apparatus that is capable of normally performing second side printing on a transfer material, even if the transfer material put on standby after completion of first side printing is pulled out by a user. A transfer material having image formed on its first side is fed until it is partly exposed to the outside of a printer, and is then fed to a refeeding path in the printer and further fed to a standby position prior to image formation on the second side of the transfer material. When it is detected that the transfer material caused to stop at the standby position is pulled out by a user, a warning to stop pulling out the transfer material is given to the user.Type: ApplicationFiled: April 18, 2008Publication date: August 28, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Eiichi MOTOYAMA, Yoshihito OSARI, Kuniyasu KIMURA, Hiroaki TOMIYASU, Takahiko YAMAOKA, Yuichi YAMAMOTO
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Patent number: 7403721Abstract: An image forming apparatus according to the invention includes a scanner for reading an image, a printer for fixing an image formed thereby on paper and discharging the paper, a display for displaying information, and a controller for controlling the scanner, the printer, and the display. The controller is configured to execute control such that jam removal guidance in accordance with an operation of a user is displayed on the display when the operation of the user in an attempt to remove a jam that has occurred in the printer is different from an order displayed on the display. In the image forming apparatus according to the invention, even when the user does not execute the jam removal operation according to the displayed guidance, guidance will be displayed in accordance with the state of the apparatus after the execution of the operation.Type: GrantFiled: February 28, 2006Date of Patent: July 22, 2008Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Ayako Yamada
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Patent number: 7403722Abstract: An image forming device determines a plurality of conditions in the device. In one embodiment, a signal source positioned downstream from a media input tray emits a signal. The signal reflects off of a reflective member and is received by a detector. Based on the amounts of the signal detected by the detector, a controller can determine a media input tray condition and a media sheet condition.Type: GrantFiled: February 22, 2005Date of Patent: July 22, 2008Assignee: Lexmark International, Inc.Inventor: Edward Lynn Triplett
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Patent number: 7379678Abstract: An image forming apparatus that is capable of normally performing second side printing on a transfer material, even if the transfer material put on standby after completion of first side printing is pulled out by a user. A transfer material having image formed on its first side is fed until it is partly exposed to the outside of a printer, and is then fed to a refeeding path in the printer and further fed to a standby position prior to image formation on the second side of the transfer material. When it is detected that the transfer material caused to stop at the standby position is pulled out by a user, a warning to stop pulling out the transfer material is given to the user.Type: GrantFiled: May 30, 2006Date of Patent: May 27, 2008Assignee: Canon Kabushiki KaishaInventors: Eiichi Motoyama, Yoshihito Osari, Kuniyasu Kimura, Hiroaki Tomiyasu, Takahiko Yamaoka, Yuichi Yamamoto
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Patent number: 7376364Abstract: An image forming apparatus includes a sheet feeding cassette, transport rollers, a pick-up roller, a sheet detector, and a control section. The sheet feeding cassette stores sheets for developer images to be transferred thereonto at a secondary transfer position. The transport rollers transport a sheet at variable speeds along a sheet transport path which extends from the cassette to the secondary transfer position. The pick-up roller feeds a sheet into the sheet transport path. The sheet detector detects whether a sheet is fed from the cassette. When the detector detects that a sheet is not fed, the control section controls the pick-up roller to feed the sheet again. The control section varies respective transport speeds of the pick-up roller, a sheet feed roller, and the transport rollers, according to number of attempts to feed the sheet.Type: GrantFiled: September 15, 2005Date of Patent: May 20, 2008Assignee: Sharp Kabushiki KaishaInventor: Masahiko Fujita
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Patent number: 7375837Abstract: A method and system for handling an imaging job in a heterogeneous imaging environment, and in particular for enabling and implementing dynamic conversion and/or configuration of imaging control data, such as print control data, so as to match imaging job requirements with the specific capabilities of a selected imaging device. Utilizing an appropriate data definitions database, which is always modifiable to suit current imaging environmental conditions, the invention deals effectively with various conversion and configuration needs, including those associated with (a) existing, (b) virtual, and (c) pseudo imaging drivers.Type: GrantFiled: March 25, 2003Date of Patent: May 20, 2008Assignee: Sharp Laboratories of America, Inc.Inventor: Andrew R. Ferlitsch