Document Handling Patents (Class 399/16)
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Publication number: 20140029961Abstract: An image forming apparatus includes an image forming unit that forms an image on a recording medium; a width detector that detects positions of side edges of the recording medium in a width direction, which is orthogonal to a conveying direction in which the recording medium is conveyed, at multiple detection positions along the conveying direction; a shape calculator that calculates angles between the conveying direction and straight lines each connecting the positions of the same side edge detected at the multiple detection positions and calculates a shape of the recording medium based on the angles; and a correction unit that corrects image data of the image to be formed by the image forming unit based on the calculated shape of the recording medium.Type: ApplicationFiled: July 25, 2013Publication date: January 30, 2014Applicant: Ricoh Company, Ltd.Inventors: Naoto UEDA, Makoto Nakura, Shingo Takai, Satoshi Ueda, Koichi Kudo
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Publication number: 20140016950Abstract: Provided is an image forming apparatus including an image forming unit with a plurality of developing devices, a sheet transport unit, a sheet position measurement unit that measures a position of the sheet during the transport in a direction crossing a sheet passage, a displacement correction unit that moves the sheet during the transport in the sheet-passage crossing direction to correct a displacement of the sheet, and a control unit that carries out the displacement correction for the sheet by the displacement correction unit for the measured sheet depending on the measurement result by the sheet position measurement unit if the developing device located on a upstream side is used, and carries out position correction for an image and reduces an interval of the image formation for each sheet if the developing device located on the upstream side is not used.Type: ApplicationFiled: June 25, 2013Publication date: January 16, 2014Inventor: Masatoshi HITAKA
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Patent number: 8614812Abstract: An image forming apparatus that may include a communication interface unit to receive an Extensible Markup Language (XML) Paper Specification (XPS) file, a determination unit to determine whether printing options set for the received XPS file are supported by the image forming apparatus, and a user interface unit to display a message that a printing option set for the received XPS file is an unsupported printing option if the printing option is not supported by the image forming apparatus.Type: GrantFiled: April 29, 2009Date of Patent: December 24, 2013Assignee: SAMSUNG Electronics Co., Ltd.Inventors: Young-hee Huh, Sung-won Chae
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Patent number: 8610964Abstract: An image forming apparatus is provided. The image forming apparatus includes a lateral cover, which is an external covering to cover a lateral side of the image forming apparatus, and a connector member having at least one protrusion, by which the lateral cover is connected to the connector member. The lateral cover is formed to have an inwardly-dented handgrip, which has an open end and a closed end, and at least one opening on an upper section of the handgrip. The at least one protrusion protrudes downwardly from a surface of the connector member. The at least one protrusion is inserted in the at least one opening of the lateral cover to penetrate the connector member and to protrude downwardly from the upper section of the handgrip.Type: GrantFiled: March 17, 2011Date of Patent: December 17, 2013Assignee: Brother Kogyo Kabushiki KaishaInventor: Yasunori Watanabe
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Publication number: 20130330093Abstract: An image forming apparatus including an feeding belt for electrostatically attracting and carrying a sheet having a toner image; an image heating member for heating the toner image while nipping and feeding the sheet; a separation roller for stretching tab sheet feeding belt and for separating the sheet from tab sheet feeding belt and directing the sheet toward to image heater; an electrical discharging member, provided at a position opposing tab separation roller through tab sheet feeding belt therebetween; and a controller for controlling tab discharging device to operate for discharging of the sheet after a leading end of the sheet is brought into abutment to the nip.Type: ApplicationFiled: June 6, 2013Publication date: December 12, 2013Inventor: Yutaka Kakehi
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Patent number: 8576421Abstract: Disclosed is a printer for performing a process on the basis of received print data, the process including feeding a print sheet for a page, printing on the fed sheet, and ejecting the printed sheet. The printer includes a controller that allows a sheet for a succeeding page to be ejected without being printed when allowing the sheet for the succeeding page to be fed before completion of the process on another sheet for a preceding page which is in progress and then recognizing the end of a print data block corresponding to the succeeding page.Type: GrantFiled: July 26, 2007Date of Patent: November 5, 2013Assignee: Seiko Epson CorporationInventors: Reiko Nomura, Kiyoshi Mukaiyama
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Patent number: 8573591Abstract: An optical reader is provided. A transport section is capable of transporting a medium which is a reading target in forward and backward directions along a transport path. An optical reading section is installed in the transporting path. The optical reading section optically reads the medium which is transported by the transport section. A control section sets a transport direction of the medium at the time of reading of the medium on the basis of a position of the medium before or when the reading of the medium is started and a reading position of the optical reading section such that a transport distance of the medium until the reading of the medium is completed is shortened, and controls the transport section and the optical reading section.Type: GrantFiled: January 13, 2011Date of Patent: November 5, 2013Assignee: Seiko Epson CorporationInventor: Hiroyuki Motoyama
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Patent number: 8571425Abstract: A detection device includes: a detection member that includes an emission member emitting a beam toward a transportation direction of a transportation path and a beam receiving member receiving a reflected beam of the beam emitted from the emission member, and that detects an image on a medium; a transmissive member that allows the beam emitted from the emission member and the beam reflected from the medium to be transmitted therethrough; and a support member that has an open portion blocked by the transmissive member, and that supports an upstream end portion of the transmissive member in the transportation direction of the medium at an upstream portion of the open portion toward the medium, an edge portion of a downstream portion of the open portion in the transportation direction being located closer to the emission member than a bottom surface of the transmissive member.Type: GrantFiled: April 18, 2011Date of Patent: October 29, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Katsuhiko Nakaie, Masao Ito, Fumio Furusawa, Junichi Morooka, Shusaku Yokota, Kota Ninomiya
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Patent number: 8564799Abstract: A method and apparatus capture bitmapped images of pages of a print job that have been raster image processed while being printed by a printing device and collect electronic image data from at least one predetermined area of the bitmapped images of the pages using a computerized device. In addition, the method and apparatus capture at least one scanned image from the predetermined area of sheets of media printed by the printing device according to the print job, using an optical imaging device operatively connected to the computerized device and compare the scanned image to the electronic image data to validate whether the print job printed correctly.Type: GrantFiled: March 10, 2010Date of Patent: October 22, 2013Assignee: Xerox CorporationInventors: Gilbert A. Grodsky, Richard T. Horn
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Patent number: 8564798Abstract: A method and apparatus capture bitmapped images of pages of a print job that have been raster image processed by a digital front end of a printing device (while they are being printed by the printing device). The bitmapped images are captured from the printing device's buffer using a computerized device potentially positioned within the printing device. The computerized device collects image data from at least one predetermined area of the bitmapped images of the pages and performs optical character processing on the image data to identify characters and numbers within the bitmapped images. The computerized device processes the characters and numbers into accumulated data for the pages of the print job. Then the computerized device compares the accumulated data to expected data to validate whether the print job printed correctly.Type: GrantFiled: March 3, 2010Date of Patent: October 22, 2013Assignee: Xerox CorporationInventor: Richard T. Horn
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Patent number: 8564817Abstract: In a case where a first identifier that is communicated between the printing apparatus and the information processing apparatus in order to specify a type of a printing medium that is used in the printing apparatus, and a second identifier unique to each of a plurality of types of printing media are set in both the printing apparatus and the information processing apparatus, the second identifier set in each of the information processing apparatus and the printing apparatus is obtained. Based on the second identifier set in each of the information processing apparatus and the printing apparatus, the first identifier set in each of the information processing apparatus and the printing apparatus is determined, such that the types of printing medium corresponding to the first identifier set in the information processing apparatus and the printing apparatus match, and a different first identifier is set regarding a printing medium of a different type.Type: GrantFiled: November 29, 2010Date of Patent: October 22, 2013Assignee: Canon Kabushiki KaishaInventor: Satoshi Otaka
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Patent number: 8559831Abstract: A method and system for printing image documents using a variety of toners where some toners using a multi-development station having two or more development stations. These toners are co-printed prior to fixing, on the receiver by the multi-development station.Type: GrantFiled: November 13, 2009Date of Patent: October 15, 2013Assignee: Eastman Kodak CompanyInventor: James D. Shifley
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Patent number: 8542414Abstract: A position of a leading edge of an original sheet should be accurately detected utilizing a shadow thereof, irrespective of thickness of the original sheet. In a scanner, an image sensor recognizes the shadow of the leading edge of the original sheet projected on a projection screen when a light source emits light to the original sheet being automatically transported on a glass plate. The original sheet is determined to have reached a reading position, when the original sheet is further transported by a predetermined distance after the shadow is recognized. The projection screen is located above the glass plate at a position spaced apart from the image sensor by a predetermined distance, and hence the timing that the shadow of the leading edge of the original sheet is projected on the projection screen is constant irrespective of the thickness of the original sheet.Type: GrantFiled: February 4, 2011Date of Patent: September 24, 2013Assignee: Seiko Epson CorporationInventor: Yoichiro Maki
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Publication number: 20130243446Abstract: An image forming apparatus forms, on a surface of a moving member moving in a first direction, an image under an image forming condition in accordance with image information. The image forming apparatus includes: a reflection-type optical sensor including an emission system including a plurality of light-emitting units arranged in a second direction perpendicular to the first direction and a light-receiving system including a plurality of light-receiving units that receive reflected light resulting from reflection of emission light emitted from the emission system at the surface of the moving member; and a determination device that determines whether there is an abnormality on the surface of the moving member on the basis of output signals from at least two or more light-receiving units.Type: ApplicationFiled: March 14, 2013Publication date: September 19, 2013Inventor: Koji MASUDA
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Patent number: 8538280Abstract: An image erasing apparatus includes a scanning unit, a memory unit, an erasing unit, and a carrying unit. The scanning unit converts an image formed on a sheet into image data which is electronic data. The memory unit stores the image data converted by the scanning unit. The erasing unit erases the image formed on the sheet. The carrying unit carries the sheet to the scanning unit and the erasing unit in this order.Type: GrantFiled: March 11, 2011Date of Patent: September 17, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Isao Yahata, Ken Iguchi, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8538317Abstract: An image elimination apparatus includes a first reader configured to read a status of a sheet, a first judgment portion configured to judge whether the read sheet is reusable or not, an image eliminator configured to eliminate an image formed on the sheet, a second reader configured to read the sheet passing through the image eliminator, a second judgment portion configured to judge whether the image formed on the sheet is eliminated or not, and a controller configured to control the first reader and the second reader so as to read with different reading precision.Type: GrantFiled: September 8, 2009Date of Patent: September 17, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Ken Iguchi
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Patent number: 8514449Abstract: The image forming apparatus includes: an image forming unit forming an image on a medium by using an image forming portion; a mode setting unit setting an image forming mode of plural image forming modes, the plural image forming modes setting, at a time of forming the image, different image forming conditions for the image forming portion included in the image forming unit; an adjusting unit performing adjustment of an image forming condition in the image forming mode; and a measuring unit individually measuring, for each of the image forming modes, a progress state after the adjustment of the image forming condition is performed by the adjusting unit in the image forming mode. The adjusting unit performs the adjustment of the image forming condition when the progress state in the image forming mode exceeds a certain value in the image forming mode.Type: GrantFiled: June 17, 2009Date of Patent: August 20, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Satoshi Tanaka, Naoya Yamasaki, Gen Nakajima
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Patent number: 8508817Abstract: An image reading apparatus enabling a user to place originals on any of sheet feed trays without confirming requested orientation of the originals, either front facing or back facing. Image data of an original fed from a first sheet feed tray and read by a first reading unit is processed handling as image data of a front surface of the original, and image data of an original fed from the first sheet feed tray and read by a second reading unit is processed handling as image data of a back surface thereof. Image data of an original fed from a second sheet feed tray and read by the first reading unit is processed handling as image data of the back surface of the original, and image data of an original fed from the second sheet feed tray and read by the second reading unit is processed handling as image data of the front surface thereof.Type: GrantFiled: December 17, 2009Date of Patent: August 13, 2013Assignee: Canon Denshi Kabushiki KaishaInventor: Ayaka Sato
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Patent number: 8502992Abstract: An image forming system, comprises: an image formation unit for forming an image on a paper; a first paper ejection unit for receiving the paper; a second paper ejection unit for receiving the paper as a sample paper in a state that the sample paper is visually checked when sample paper ejection is performed; a first control section for controlling a switching section to eject the sample paper by switching a paper sending destination from the first paper ejection unit to the second paper ejection unit at a time of the sample paper ejection; a second control section for controlling a display section to display thumbnail images; and wherein the first control section performs the sample paper ejection using the image for sample paper ejection selected by a selecting section for selecting the image for sample paper ejection from the thumbnail images displayed in the display section.Type: GrantFiled: October 19, 2009Date of Patent: August 6, 2013Assignee: Konica Minolta Business Technologies, Inc.Inventor: Susumu Kurihara
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Patent number: 8498025Abstract: An image reader reads an image on a document while transporting it along a transport path. The image reader includes an image-reading unit, a document guide member and a size detector. The image-reading unit reads the image in a predetermined line width and generates image data based on the image. The document guide member is disposed along the document path and has a first mark thereon. The first mark extends in a main scanning direction of the image-reading unit and has a width greater than or equal to the predetermined line width. The size detector detects the size of the document based on image data read by the image-reading unit at a size detection position where the document overlaps with the first mark.Type: GrantFiled: November 30, 2009Date of Patent: July 30, 2013Assignee: Oki Data CorporationInventor: Ryuji Fukasawa
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Patent number: 8489010Abstract: An image delete apparatus has a paper feed tray that feeds recording media, a group of sensors containing a double-feed detection sensor that senses double-feed of the recording media and a media sensor that senses thicknesses of the recording media, a folding unit, and an auxiliary carrying path, and includes a collecting unit that folds and collects the recording media.Type: GrantFiled: August 2, 2010Date of Patent: July 16, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Hiroyuki Taki, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Ken Iguchi
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Publication number: 20130164000Abstract: An image forming system includes an image forming unit configured to output image data onto a recording medium; a first conveying unit configured to convey the medium; a reading unit configured to read an image from the medium; a defect determining unit configured to determine whether the read image has a defect; a device connection determining unit configured to determine whether a discharge device is directly connected to an image inspection device at the downstream side or is connected to the image inspection device via another device at the downstream side; a second conveying unit configured to convey the medium to the discharge device on a longer conveying path, when the discharge device is directly connected to the image inspection device; a defective discharge tray to which the medium having a defective image is discharged; and a normal discharge tray to which the medium having a non-defective image is discharged.Type: ApplicationFiled: December 18, 2012Publication date: June 27, 2013Inventors: Masakazu NEMOTO, Kenichi KAMOSHIDA, Kazutoshi OBARA, Noritaka MASUDA
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Publication number: 20130142525Abstract: An image forming apparatus includes a fixing section, a de-curling section, and a control section. The de-curling section has a de-curling nip portion that presses a sheet to correct a curl caused in the sheet, and a corrective force thereof to press the sheet changes at least in two steps. The control section increases the conveyance speed of the sheet after a rear end of the sheet has passed the fixing nip portion when the de-curling section supports by sandwiching the sheet with a weakly-pressing force. When the de-curling section supports by sandwiching the sheet with a strongly-pressing force, the controller increases the conveyance speed of the sheet after the rear end of the sheet has passed the fixing nip portion and the de-curling nip portion.Type: ApplicationFiled: November 29, 2012Publication date: June 6, 2013Inventors: Ken NONAKA, Yoshiteru KAWAKAMI, Takahiro OKUBO, Haruki MOTEGI, Masahiro MATSUO, Yusuke KAWANAGO, Osamu YOSHIMURA
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Patent number: 8456665Abstract: Embodiments of the present invention comprise systems and methods for detecting the status of printing devices and recovering from printing errors.Type: GrantFiled: September 28, 2001Date of Patent: June 4, 2013Assignee: Sharp Laboratories of America, Inc.Inventor: Andrew R. Ferlitsch
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Patent number: 8452196Abstract: A device for measuring a length of a recoding material, includes: a rotating body that rotates in contact with a recording material which is transported; a length measuring unit that measures a length of the recording material based on a rotation of the rotating unit; a detecting unit that detects at least one of a rotation and an oblique advance of the recording material; and a correcting unit that corrects a value measured by the length measuring unit based on an output of the detecting unit.Type: GrantFiled: March 11, 2010Date of Patent: May 28, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Toshiyuki Kazama, Koji Morofuji, Takeshi Kato, Kozo Tagawa
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Patent number: 8452224Abstract: A sheet conveyance apparatus includes a first roller and a second roller. The second roller is urged to the first roller by an elastic member. In the sheet conveyance apparatus, sheet guide rib is provided which can project into a sheet conveyance path formed by a sheet guide plate. The sheet conveyance apparatus further includes an interlock portion which is mechanically interlocking with a changing position of the second roller, and changes the projecting amount of the sheet guide rib into the sheet conveyance path such that the more the thickness of a sheet increases, the smaller the projecting amount becomes.Type: GrantFiled: March 30, 2010Date of Patent: May 28, 2013Assignee: Canon Kabushiki KaishaInventor: Naoki Ishioka
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Publication number: 20130129363Abstract: An image forming apparatus is provided. The apparatus includes an integrated sensing unit, which includes an optical sensor including a light emitting part and a light receiving part to receive light emitted from the light emitting part, and an actuator which selectively blocks light to be received by the light receiving part. The actuator includes a shaft member that is elastically supported in one rotation direction, a light blocking member that is mounted on the shaft member and is selectively positioned between the light emitting part and the light receiving part, and a first contact member and a second contact member distanced from each other on the shaft member.Type: ApplicationFiled: November 16, 2012Publication date: May 23, 2013Applicant: Samsung Electronics Co., Ltd.Inventor: Samsung Electronics Co., Ltd.
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Patent number: 8447193Abstract: A printing apparatus connected to another printing apparatus to feed sheets to the another printing apparatus includes a reception unit configured to receive, from another printing apparatus, stop detection information regarding timing of a printing stop in another printing apparatus, and a control unit configured to feed sheets for performing printing up to a page indicated by the stop detection information received by the reception unit, perform printing on the sheets to prevent retention of the fed sheets, and cancel feeding preparation of the sheets for printing the page indicated by the stop information and succeeding pages.Type: GrantFiled: December 21, 2010Date of Patent: May 21, 2013Assignee: Canon Kabushiki KaishaInventor: Yoshitake Mizuno
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Patent number: 8437646Abstract: A paper feed system for use in a printing apparatus that detects multi-feeds and separates all sheets while allowing a single sheet to continue into the machine includes a nip with a drive roller for feeding sheets. A reversible pressure roller downstream of the drive roller is connected to a motor, but idles in the direction of the paper feed in normal operation. When a multi-feed is detected, the motor is turned ON and the reversible pressure roll actuated by a controller. The reversible pressure roller has more friction with the sheet in its contact than the friction between sheets. This drives the sheet in contact backwards.Type: GrantFiled: August 15, 2012Date of Patent: May 7, 2013Assignee: Xerox CorporationInventors: Nicholas Baxter, Andrew Hill, Andrew Ashwood, Nicholas Gates, Robert Sanders, Andrew Williams
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Publication number: 20130108283Abstract: Provided is a method for forming an image containing the steps of: supplying a clear toner on a surface of an image forming support; heating the supplied clear toner on the surface of the image forming support to melt; close contacting the surface of the image forming support supplied with the clear toner with a belt; and cooling the clear toner in a state of close contacting with the belt so as to form a clear toner layer on the image forming support, wherein the aforesaid clear toner contains at least a resin formed with a polymerizable monomer represented by Formula (1) and a vinyl monomer, Formula (1): H2C?CR1—COOR2, wherein R1 represents a hydrogen atom or a methyl group; and R2 represents a chain alkyl group having 12 to 22 carbon atoms, or a cyclic alkyl group.Type: ApplicationFiled: October 24, 2012Publication date: May 2, 2013Inventors: Yusuke KAWANAGO, Takahiro OKUBO, Masahiro MATSUO, Yoshiteru KAWAKAMI, Haruki MOTEGI, Osamu YOSHIMURA, Kunihiro KAWACHI, Ken NONAKA
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Patent number: 8422098Abstract: A document data capturing device includes a sheet supply tray for carrying documents, a sheet discharge tray located below the sheet supply tray, and a document conveying mechanism including a conveying path along which documents are guided from the sheet supply tray to the sheet discharge tray. The document data capturing device includes a first data-capturing unit and a second data-capturing unit which scan respective sides of a document conveyed by the document conveying mechanism. The first data-capturing unit and the second data-capturing unit are each configured with a reduction-optics scanning mechanism. The conveying path along which a document to be scanned by the first and second scanning mechanisms is conveyed is formed to surround the second reduction-optics data-capturing unit. Thus, the device can be made compact.Type: GrantFiled: December 28, 2008Date of Patent: April 16, 2013Assignee: Nisca CorporationInventors: Masataka Hamada, Seiji Nishizawa, Yutaka Tanaka, Kazuhisa Mochizuki
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Patent number: 8406643Abstract: An image forming apparatus includes an image formation unit, a conveying unit and controller. The image formation unit includes a rotating photoreceptor, a latent image formation unit, a developing unit, a first transfer unit, and a second transfer unit. Regardless of forming or not forming on the photoreceptor a belt-shaped image which is not being transferred onto a recording medium, the controller controls the image forming unit such that formation of an image quality adjusting image that is not transferred to the recording medium starts from a predetermined position in a rotational direction of the photoreceptor, and such that the recorded image is formed further downstream in the rotational direction of the photoreceptor than an image quality adjusting image region.Type: GrantFiled: September 14, 2009Date of Patent: March 26, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Hiroyuki Funayama, Naoki Hirako, Hideo Kimura, Keita Kumokiri, Mitsugu Kamio, Shun Kuwahara, Izumi Suda
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Patent number: 8401413Abstract: Disclosed is an image forming device which can prevent occurrence of damage on the surface of a fixing roller or a fixing belt due to the contact of the end of a sheet with the fixing roller or fixing belt. The image forming device, for transferring a toner image to a sheet fed out from a sheet feed section and fixing the toner image to the sheet by pressing the sheet carrying the toner image at a fixing section, includes a moving section for moving the sheet and or the fixing section in the direction at right angles to the traveling direction of the sheet within a preset moving range, the moving section being controlled based on a preset operation pattern.Type: GrantFiled: July 21, 2009Date of Patent: March 19, 2013Assignee: Konica Minolta Business Technologies, Inc.Inventors: Masami Maruko, Susumu Okui
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Publication number: 20130058663Abstract: A user is notified that the setting of sheets with respect to a grouped plurality of sheet storage units is changed, so that a state becomes impossible to execute switching of the grouped sheet storage units. The control method includes, registering a plurality of sheet storage units each storing a sheet as one group, determining, at the time of sheet supply to any one of the sheet storage units, whether sheet information about the sheet storage unit set in the group has been changed by sheet information newly set with respect to the sheet storage unit to be supplied with the sheet, and a notifying, when it is determined that the sheet information has been changed, the user of the change in the sheet information about the sheet storage units set as one group by the supply of the sheet.Type: ApplicationFiled: August 28, 2012Publication date: March 7, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Takaaki Yano
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Publication number: 20130051818Abstract: An ultrasonic wave detection apparatus includes a transmission unit which transmits ultrasonic waves at a first frequency and a second frequency, a reception unit which receives ultrasonic waves transmitted from the transmission unit, and a control unit which causes the transmission unit to transmit ultrasonic waves at the first frequency and causes the reception unit to receive the first frequency ultrasonic waves to obtain a detection timing of a peak value of a n-th wave of the received first frequency ultrasonic waves, causes the transmission unit to transmit ultrasonic waves at the second frequency and causes the reception unit to receive the second frequency ultrasonic waves to obtain a detection timing of a peak value of a n-th wave of the received second frequency ultrasonic waves, and specifies “n” of the n-th wave from which the peak value is detected based on a difference in the detection timings.Type: ApplicationFiled: August 15, 2012Publication date: February 28, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Atsunobu Mori
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Patent number: 8385765Abstract: An image forming apparatus capable of selectively discharging a sheet having an image formed with toner on one surface thereof and a sheet having images formed with toner on both surfaces thereof includes a fixing unit configured to fix a toner image on a sheet, a sheet stacking portion configured to stack sheets each having the toner image fixed thereon, and a control portion configured to control a maximum sheet stacking amount of sheets stacked in the sheet stacking portion. The control portion controls the maximum sheet stacking amount set when sheets, at least one of which has the toner images formed on both surfaces thereof, are stacked to be smaller than the maximum sheet stacking amount set when sheets each having the toner image formed on one surface thereof are stacked.Type: GrantFiled: July 6, 2010Date of Patent: February 26, 2013Assignee: Canon Kabushiki KaishaInventor: Kozo Inoue
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Patent number: 8368910Abstract: A printing system comprises a host computer, a laser printer of a paper ejecting type and another laser printer of a non-paper ejecting type, all connected to one another via a system bus. The host computer functions as the supply source of image information and as the data processor, and controls the laser printer of a paper ejecting type and the other laser printer of a non-paper ejecting type. A printing apparatus and method that can contribute to increasing the speed and convenience of secured print in this printing system are to be provided. To accomplish this, the laser printer of a paper ejecting type and the other laser printer of a non-paper ejecting type will execute interrupt print processing when the received job is a secured print job and there is any other job being processed if there are a plurality of paper discharging ports or execute promote print processing if there is only one paper discharging port.Type: GrantFiled: July 21, 2005Date of Patent: February 5, 2013Assignee: Canon Kabushiki KaishaInventor: Nobuyoshi Kakigi
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Patent number: 8355640Abstract: Provided is a document feeding device including: a document feeding portion for feeding a document; a document set detecting portion for detecting presence/absence of a set document; a determination portion for determining whether power supply to the device is started by turning-on of main power or by cancellation of a power saving mode; an initial operation portion for performing an initial operation of initializing the document feeding portion when the power supply to the document feeding device is started by the turning-on of the main power, and restricting execution of the initial operation when the power supply to the document feeding device is started by the cancellation of the power saving mode; and a display portion for displaying, when there is a set document at the start of the power supply, a request to reset the document.Type: GrantFiled: October 25, 2011Date of Patent: January 15, 2013Assignee: Kyocera Mita CorporationInventor: Hidehiro Tabuchi
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Patent number: 8351065Abstract: When a paper sheet is required during execution of a print job, a printing apparatus requests paper sheet information about the states of paper feed trays from the other printing apparatuses. When the other printing apparatuses transmit the paper sheet information, the printing apparatus of the request source displays a search result display screen 22 which represents the states, such as the size, type, and residual amount of paper sheet in the paper feed tray of each of the other printing apparatuses. By viewing the screen 22, the user is able to determine the position of the printing apparatus and the paper feed tray, in which the required paper sheet is stored. Therefore, when the paper sheet is required during execution of the print job, the paper sheet can be quickly replenished by notifying the presence position of the paper sheet.Type: GrantFiled: January 12, 2009Date of Patent: January 8, 2013Assignee: Sharp Kabushiki KaishaInventor: Wataru Nishii
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Patent number: 8345296Abstract: An image processing apparatus includes an apparatus main unit control software storage unit configured to store new apparatus main unit control software used to control a main unit of the image processing apparatus on a non-volatile storage device, a combination appropriateness determination unit configured to determine whether a combination of the new apparatus main unit control software and post-processing apparatus control software that currently operates on a post-processing apparatus is appropriate based on version information about the post-processing apparatus control software used to control the post-processing apparatus, which is operable in combination with the new apparatus main unit control software, and version information about the post-processing apparatus control software that currently operates on the post-processing apparatus, a determination result storage unit configured to store a result of the determination by the combination appropriateness determination unit, and an activation unit conType: GrantFiled: October 24, 2008Date of Patent: January 1, 2013Assignee: Canon Kabushiki KaishaInventor: Jun Miyajima
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Publication number: 20120308244Abstract: A sheet identification device includes plural detecting units, an estimating unit, and an output unit. The plural detecting units are provided along a transport path along which a sheet is transported by a transport unit, and detect passing of the sheet. The estimating unit estimates a length in a transport direction of the sheet as a detection target on the basis of individual detection results generated by the plural detecting units. The output unit outputs, if the length estimated by the estimating unit on the basis of at least one of the detection results is not a predetermined length, a signal indicating that a sheet having a length in the transport direction different from the predetermined length is being transported.Type: ApplicationFiled: November 9, 2011Publication date: December 6, 2012Applicant: FUJI XEROX CO., LTD.Inventors: Kiyoshi WATANABE, Kiminobu TSUTADA, Hiroyuki TAMAI, Hiroaki MAGARIBUCHI
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Patent number: 8325386Abstract: The transfer of a duplicate electronic document between image forming devices is done with an electronic document that is formed of only resolution-independent vector data and the like, and a normal printing of the duplicate electronic document or printing of different resolution is performed by developing the vector data. In high-quality printing of the duplicate electronic document, a Fill Map included in the original document the information indicating the location of an electronic document of copy source that is embedded in a metadata specifies is obtained, and this printing is made using the Fill Map.Type: GrantFiled: May 11, 2009Date of Patent: December 4, 2012Assignee: Canon Kabushiki KaishaInventor: Hisashi Koike
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Patent number: 8305654Abstract: An image scanning apparatus arranged to press an original document placed on a glass plate by a platen cover and to scan the original document by a line sensor includes a light source used when scanning image information, a first detection sensor arranged to detect as a first timing a state in which the cover is opened at, for example, an angle of 20 degrees, a second detection sensor arranged to detect as a second timing a state, for example, that is immediately before the cover closes the glass plate, and an original document size determining unit arranged to determine the size of the original document based on the differential data, which is calculated from first image information scanned at the first timing and second image information scanned at the second timing.Type: GrantFiled: March 3, 2010Date of Patent: November 6, 2012Assignee: Murata Machinery, Ltd.Inventor: Noriyoshi Takeshima
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Patent number: 8294918Abstract: An image forming apparatus includes a failure prediction unit, an image identification unit, a simulated-image generating unit, and an output unit. The failure prediction unit prepares an index value indicating a condition of the image forming apparatus based on multidimensional signal, obtained by monitoring the image forming apparatus, and compares the index value with a first threshold value to predict a failure mode of the image forming apparatus. The image identification unit identifies types of abnormal images based on the failure mode predicted by the failure prediction unit. An identified abnormal image is predicted to be appear a given time later. The simulated-image generating unit generates a simulated image of the identified abnormal image. The output unit outputs the identified abnormal image as the simulated image.Type: GrantFiled: September 18, 2007Date of Patent: October 23, 2012Assignee: Ricoh Company, Ltd.Inventors: Osamu Satoh, Yasushi Nakazato, Kohji Ue, Masahide Yamashita, Jun Yamane, Masaichi Sawada, Noriyuki Ochiai, Shintaroh Takahashi
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Patent number: 8289566Abstract: A print or logo data generating system and method in which a width dimension of a printable medium is identified and original source data obtained. The processing further involves automatically resizing the source data to a predefined maximum width not greater than the width dimension of the printable medium prior to executing any user-requested changes, and displaying a first image representation of the original source data. Upon receipt of a user-requested change in the size of the original source data and a user-requested change in the number of colors of the original source data, the size change request is executed first.Type: GrantFiled: September 24, 2007Date of Patent: October 16, 2012Assignee: Seiko Epson CorporationInventors: Kazuyuki Yokoyama, Yukiharu Horiuchi, Katsuhito Kitahara
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Patent number: 8280263Abstract: A paper feed system for use in a printing apparatus that detects multi-feeds and separates all sheets while allowing a single sheet to continue into the machine includes a nip with a drive roller for feeding sheets. A reversible pressure roller downstream of the drive roller is connected to a motor, but idles in the direction of the paper feed in normal operation. When a multi-feed is detected, the motor is turned ON and the reversible pressure roll actuated by a controller. The reversible pressure roller has more friction with the sheet in its contact than the friction between sheets. This drives the sheet in contact backwards. This sheet can be diverted to a separate paper path using a gate mechanism and, if desired, fed back into the feed path.Type: GrantFiled: January 31, 2011Date of Patent: October 2, 2012Assignee: Xerox CorporationInventors: Nicholas Baxter, Andrew Hill, Andrew Ashwood, Nicholas Gates, Robert Sanders, Andrew Williams
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Publication number: 20120237226Abstract: An edge detecting device for detecting an edge of a moving recording medium includes a reflecting unit that includes a reflecting surface having reflectance higher than that of the recording medium, light sources that irradiate the recording medium and the reflecting surface of the reflecting unit with light, a light receiving unit that includes pixels of a photoelectric conversion element provided in a width direction of the recording medium and receives reflected light that has been emitted from the light sources and has been reflected by the recording medium and the reflecting surface of the reflecting unit on the pixels of the photoelectric conversion element, and a control unit that determines a region of the pixels of the photoelectric conversion element that make output higher than a previously set determination threshold value to be the edge of the recording medium on the light receiving unit.Type: ApplicationFiled: March 7, 2012Publication date: September 20, 2012Inventor: Keisuke SAKA
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Publication number: 20120207485Abstract: An image forming apparatus which secondarily transfers a toner image primarily transferred onto an intermediate transfer belt, including: a registration roller pair; a registration motor; a secondary transfer unit located downstream of the registration roller pair and secondarily transferring the toner image onto a sheet; a detection sensor detecting the presence or absence of the sheet transported on a sheet transport path downstream of the secondary transfer unit; a suction transport belt transporting the sheet; and a control unit controlling to stop the registration motor in a case that the control unit determines absence of the sheet on the sheet transport path based on a signal from the detection sensor, when an interval of time, which is expected to be taken from when starting to transport the sheet by the registration roller pair to when a leading edge of the sheet reaches the suction transport belt, has elapsed.Type: ApplicationFiled: February 1, 2012Publication date: August 16, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Tadashi Iwakawa
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Patent number: 8240658Abstract: According to one embodiment, an image forming apparatus includes a cassette, a sensor and a controller. The cassette stacks a sheet. The sensor is provided at the rear end of the cassette. When the sensor detects the protrusion of the sheet from the cassette, the controller controls to notify that the sheet protrudes by using an alarm.Type: GrantFiled: February 24, 2011Date of Patent: August 14, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki KaishaInventor: Yousuke Ushiyama
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Publication number: 20120201549Abstract: An image forming apparatus includes a specifying unit configured to, when a user operation for instructing checking of printing is performed during printing, specify, according to a type of carbonless copy paper of a page being printed, carbonless copy paper for checking corresponding to the carbonless copy paper being printed, and an output unit configured to output the carbonless copy paper being printed and the carbonless copy paper for checking specified by the specifying unit.Type: ApplicationFiled: February 3, 2012Publication date: August 9, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Munetaka Sakata