Patents Assigned to Xerox
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Patent number: 6829452Abstract: A clearance regulating amount L by a clearance regulating member 4, which is provided above a developing roller 3 on a side closer to a photosensitive drum 1, is determined at a size not greater than a height T of a developer at a magnetic pole just downstream of the clearance regulated position. Thus, the scattering of the developer from a developing unit 2 is significantly reduced.Type: GrantFiled: January 18, 2002Date of Patent: December 7, 2004Assignee: Fuji Xerox Co., Ltd.Inventors: Takeshi Tanimoto, Kenji Yagi
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Patent number: 6829565Abstract: A printing apparatus includes a stepper motor automated self-test routine that gives an approximation of the state of the degradation of the stepper motor and/or its driven load. The test includes artificially increasing the starting frequency above normal and/or reducing the operation current below normal by a known and controllable amount to the stepper motor and tracking the level at which the motor is just able to start operating. By examining the magnitude and/or change in these levels, the remaining life and reliability of the motor can be predicted. Alternatively, the self-test routine could be used in conjunction with paper path sensors to determine the start time for a stepper motor. The start times are stored for trend analysis.Type: GrantFiled: February 14, 2003Date of Patent: December 7, 2004Assignee: Xerox CorporationInventors: Robert P. Siegel, Kevin E. Price
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Patent number: 6829457Abstract: A driving apparatus transmits a driving force from a drive source to a driven body via a multiple-stage gear train (including, for example, gears). In the multiple-stage gear train, the speed fluctuation phase of a mesh frequency occurring at each mesh point of the gear train including the gears to a target gear is set in a range in which the speed fluctuation amplitude of the target gear positioned downstream at the third stage or later is equal to or less than the speed fluctuation amplitude of the immediately preceding mesh gear positioned upstream. The invention also applies to an image formation apparatus using the drive as a drive of a driven body.Type: GrantFiled: October 29, 2002Date of Patent: December 7, 2004Assignee: Fuji Xerox Co., Ltd.Inventors: Takahiko Ryuzaki, Norio Hokari, Satoru Nishikawa, Susumu Kibayashi, Yoshihiko Mitamura, Tokuaki Hanzawa, Michiaki Yoshihara
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Patent number: 6827435Abstract: A dryer assembly for drying a liquid ink image formed on a substrate comprising a housing defining a portion of a sheet moving path; a plenum positioned within the housing, the plenum including air flow and outlet means contiguous to the plenum permitting forced air to exit the plenum, the outlet being in the form of a plurality of moving openings adapted to direct flowing air through the openings to the liquid image, the openings moving relative to the image; and a substrate transport device for moving the substrate carrying the liquid ink image on a front side thereof through the housing and under the plurality of moving openings. The dryer assembly has particular use in an ink jet printing system.Type: GrantFiled: January 7, 2002Date of Patent: December 7, 2004Assignee: Xerox CorporationInventors: Gerald A. Domoto, Elias Panides, S. Warren Lohr, Roger Leighton, Dawn Api, Narayan V. Deshpande, Andrew W. Hays
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Patent number: 6829564Abstract: There is disclosed an apparatus for supporting evaluation of usability of an instrument relative to performing a given task. During performing of the task, a control unit acquires information of an operation log related to an operation performed by a user, and evaluates an effectiveness index associated with achievement of the task, efficiency index associated with efficiency, and satisfaction index associated with subjective satisfaction of the user. The indexes are generated by a statistical calculation using a plurality of measured items, including the operation log information.Type: GrantFiled: February 10, 2003Date of Patent: December 7, 2004Assignee: Fuji Xerox Co., Ltd.Inventors: Toru Tanaka, Toshie Mihira, Yoshitsugu Hirose, Kazuo Shibuta, Tsutomu Ohyama, Katsura Sakai, Hideto Yuzawa
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Patent number: 6828073Abstract: Such a toner for developing an electrostatic image is to be provided that has a wide fixable temperature range, is excellent in development and transfer performance and excellent in releasing performance, realizes both glossiness and transparency, and is capable of providing an image (particularly a color image) of a wide color reproduction range having high quality and high durability, a developer for an electrostatic image, and a process for forming an image. The toner for developing an electrostatic image contains a binder resin, a colorant and an inorganic metallic salt, and an amount of a toluene insoluble component (provided that the colorant, a releasing agent and inorganic and organic insoluble particles are excluded therefrom) is from 0.5 to 10% by weight. The developer for an electrostatic image and the process for forming an image use the toner for developing an electrostatic image.Type: GrantFiled: August 16, 2002Date of Patent: December 7, 2004Assignee: Fuji Xerox Co., Ltd.Inventors: Yasuo Matsumura, Hidekazu Yaguchi, Satoshi Yoshida, Takahisa Fujii, Tomohito Nakajima
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Patent number: 6828594Abstract: A simple and low cost semiconductor light emission element exerting high performance and a process for producing the same are provided. The semiconductor light emission element contains a nitride semiconductor layer containing at least one or more element selected from Group IIIA elements and one or more element selected from Group VA element, a dissimilar semiconductor having a polarity different from the nitride semiconductor layer, and a light emission layer provided between the dissimilar semiconductor and the nitride semiconductor, in which electrons or positive holes are injected from semiconductors of the dissimilar semiconductor and the nitride semiconductor layer to the light emission layer to carry out light emission.Type: GrantFiled: October 30, 2002Date of Patent: December 7, 2004Assignee: Fuji Xerox Co., Ltd.Inventor: Shigeru Yagi
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Patent number: 6828990Abstract: The user interface is provided to aid a user in preparation of a document having precut tabbed pages. The user interface allows tab content, including monochrome or color text and graphics, to be automatically positioned on the tabs of the precut tabbed pages. The user may enter all the tab content information at one time or, alternatively, may enter tab information during processing of the document. The user interface further provides the ability to view a graphical representation of the arranged precut tabbed pages with the appropriate tab content.Type: GrantFiled: December 28, 2000Date of Patent: December 7, 2004Assignee: Xerox CorporationInventors: Marc J. Krolczyk, Thomas J. Perry, Edward W. Dyer
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Patent number: 6828538Abstract: A system to monitor light emitting diodes (LEDs) in a printbar is described. The system integrates photodetectors into a printer or into the printbar itself such that as the printbar ages, the photodetectors can detect the decrease in intensity of the LEDs in the printbar and recalibrate driver circuits providing power to each LED. The recalibrated power output of each driver circuit compensates for nonuniformities in the LEDS that result from uneven aging of the LEDs.Type: GrantFiled: December 26, 2001Date of Patent: December 7, 2004Assignee: Xerox CorporationInventor: Patrick Y. Maeda
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Patent number: 6829630Abstract: Web-based event/state-driven mechanisms and methods for simplifying communication between networked multifunction devices, such as copiers, printers, facsimile machines and multifunction devices using a networked database for the creation and presentation of device metrics and status data. Web-based multifunction performance metrics and calculations themselves are created within concurrent (multiple instances) of Web objects, wherein a Web object is a self-contained entity with data and a state machine lifecycle. State changes inside and outside the Web object are made by sending events to event queues and routing them to other state machines within other Web objects or instances of the same Web object. Data and events between Web objects are formed into a regular event syntax providing a simpler method of communication than those of procedural programming approaches.Type: GrantFiled: November 24, 2000Date of Patent: December 7, 2004Assignee: Xerox CorporationInventors: Henry G. Pajak, Gavan L. Tredoux, Highland Mary Mountain
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Patent number: 6829466Abstract: A fuser component useful in electrostatographic machines, having an optional substrate, an optional intermediate and/or adhesive layer, and a layer of a high temperature plastic such as epoxy, polyketone, polyether, polyamide, and polyparabanic acid.Type: GrantFiled: September 7, 2001Date of Patent: December 7, 2004Assignee: Xerox CorporationInventors: Patrick J. Finn, Elizabeth L. Barrese, Pat Goode, David J. Gervasi
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Patent number: 6827517Abstract: A coating head assembly incorporating a replaceable breakaway link. The breakaway link connects two portions of the coating head assembly and has a sharp bend defining a weakened portion. In the event of a collision, the breakaway link will break to reduce the likelihood of breakage of any other part of the coating head assembly. Repair then only requires that the link be replaced, rather than the coating head assembly to be rebuilt. This invention reduces the coating head repair time from a fifteen-hour job of rebuilding the coating head assembly to a three-hour job of tooling a new link.Type: GrantFiled: February 26, 2003Date of Patent: December 7, 2004Assignee: Xerox CorporationInventors: Roderick K. Thomson, Robert D. Rotolo
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Patent number: 6826849Abstract: A contamination-free apparatus is provided for moving and drying coated photoreceptors. The contamination free apparatus includes an oven assembly having first and second side walls defining a heating chamber, a guiding track for guiding a photoreceptor carrier or pallet, and first and second magnetic drive loops mounted externally of said first and second side walls. Each of the first and second magnetic loops has first magnetic elements for inducing magnetic forces into the heating chamber. The contamination-free apparatus also includes a carrier or a pallet for holding coated photoreceptors for movement through the heating chamber. The carrier or pallet includes track followers, first and second end walls for facing the first and second side walls of the heating chamber, and second magnetic elements.Type: GrantFiled: September 26, 2003Date of Patent: December 7, 2004Assignee: Xerox CorporationInventor: Richard P. Millonzi
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Patent number: 6828955Abstract: An image display medium capable of displaying an image showing little change of the image density, and also little change of the image density uniformity, and being stable in density contrast, even when repeatedly rewritten over a long period, and an image formation apparatus are provided. The image display medium includes a pair of substrates disposed opposing to each other; and particle groups including at least two types of particles sealed in a space between the pair of the substrates, at least one type thereof having a positively chargeable property, and at least one of others having a negatively chargeable property, and the positively and negatively chargeable types of particles being different colors. The value of a coefficient of variation in each particle size distribution of both the positively and negatively chargeable types of particles is approximately not more than 15%.Type: GrantFiled: November 13, 2001Date of Patent: December 7, 2004Assignee: Fuji Xerox Co., Ltd.Inventors: Yasuo Yamamoto, Chisato Urano, Yoshihiro Inaba
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Publication number: 20040240904Abstract: By providing a secure EEPROM (Electrically Erasable Programmable Read Only Memory) device or other non-volatile memory (NVM) as a system operation key (SOK) to control the configurable machine option attributes, various problems associated with machine option configuration and updates may be accommodated. At initial SOK install the identity of the machine is written to the NVM, i.e. the machine serial number. This is performed during the initial machine power up or reboot sequence. As part of the power on or reboot routine the machine will check to ensure no tampering has taken place and that the machine identity and the NVM serial number location data match. A new swapped in SOK can be installed so long as the NVM serial number location has not been previously written to with a conflicting identification number. The machine will then write the serial number to the new SOK thereby protecting it.Type: ApplicationFiled: May 29, 2003Publication date: December 2, 2004Applicant: Xerox CorporationInventors: Robert A. Koontz, Christian Redder, Heiko Rommelmann, David S. Shuman, Christian G. Midgley
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Publication number: 20040239965Abstract: Systems and methods are disclosed for enabling page description language (PDL) specified image processing files to be overridden by a user/operator of a digital color copier/printer at raster input scanning time on a job or page basis. A user can specify an input color space profile that is unspecified or when to override a specified input color space profile for desired results. This allows a user to identify treatment of source data in a file, as well as to override embedded ICC profiles. A precedence model is used to determine which source profile to use among a number of possible source profile sources, including queue, job, page and object sources.Type: ApplicationFiled: May 30, 2003Publication date: December 2, 2004Applicant: XEROX CORPORATIONInventors: Sharon A. Krueger, Terry L. Stewart
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Publication number: 20040239633Abstract: A display section of an operation panel is raised relative to a horizontal plane. If the display section consists of a liquid crystal having an angle of visibility of 80 degrees (i.e., with an angle formed between the line normal to the display surface of the display section and the visibility range limit being 40 degrees), the display section is raised at about 50 degrees relative to the horizontal plane, so that visibility can be ensured both at the wheelchair seated position and at the standing position at which the non-handicapped person stands up. Further, by arranging visual recognition keys (a menu key etc.) which require an operator to view the display section during operation thereof outside of a projection region of the display section, the operator's hand on the operation panel never hides the display section during operation.Type: ApplicationFiled: December 11, 2003Publication date: December 2, 2004Applicant: FUJI XEROX CO., LTDInventors: Shinya Kogoh, Toshihiko Matsuo, Ko Takeuchi, Toshimitsu Kobayashi
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Publication number: 20040240012Abstract: Quality of a reproduced light beam is improved, and rewriting and recording are performed at high speed without erasing data. Each page of a hologram is newly recorded so that the maximum point of diffraction light beam intensity in reproducing the newly recorded hologram is located at a position where diffraction light beam intensity from a data page of a hologram which has been previously recorded in a hologram recording medium is minimized at the time of reproducing the data.Type: ApplicationFiled: March 25, 2004Publication date: December 2, 2004Applicant: FUJI XEROX CO., LTD.Inventors: Shin Yasuda, Jiro Minabe, Katsunori Kawano, Tatsuya Maruyama, Norie Matsui
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Publication number: 20040241348Abstract: A recording paper containing pulp fibers, a filler, and an amine, wherein the amine is a primary, secondary, or tertiary amine represented by the following Formula (&agr;). In the following Formula (&agr;), at least one of substituents represented by R1, R2, and R3 is a hydrocarbon group containing a hydroxyl group. In addition, also provided are an ink jet recording method including recording images on the recording paper; an ink jet recording device equipped with a recording head for ejecting ink onto the recording paper; an electrophotographic recording method including fusing toner images on the recording paper surface; and an electrophotographic recording device including a fusing means that fuses a toner image on the recording paper surface.Type: ApplicationFiled: May 27, 2004Publication date: December 2, 2004Applicant: FUJI XEROX CO., LTD.Inventors: Chizuru Koga, Kiyoshi Hosoi, Takashi Ogino, Tsukasa Matsuda, Taiga Iinuma, Takatsugu Doi, Ken Hashimoto
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Publication number: 20040240902Abstract: A toner process control process, which includes substantially predicting an effect of reload error on a developed test patch, generating a developed test patch, sensing color density data from the test patch with a sensor, altering the sensed color density data to compensate for the predicted effect of reload error, and adjusting toner output according to the altered sensed color density data.Type: ApplicationFiled: May 29, 2003Publication date: December 2, 2004Applicant: Xerox CorporationInventors: Edul N. Dalal, D. Rene Rasmussen, Peter A. Crean
