Record Receiver Or Conveyor Means Therefor Patents (Class 347/139)
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Patent number: 6542176Abstract: Electronic display devices and methods are described. In one embodiment, a display device comprises a housing with a display area to display content for a user. Memory within the housing holds data that is to be rendered into user-viewable content. A loop of material is provided within the housing and is configured to display user-viewable content for the user. An exposure station is provided internally of the loop of material and is configured to expose selected portions of the loop of material so that the loop of material can receive and retain toner thereon to provide the user-viewable content from the data that is held in the memory. In another embodiment, a display device comprises a toner shuttling system within the housing that is configured to shuttle toner between different locations within the housing from which the toner can be used and reused.Type: GrantFiled: November 7, 2000Date of Patent: April 1, 2003Assignee: Hewlett-Packard Development Co., L.P.Inventor: Thomas Camis
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Patent number: 6536346Abstract: In a process and apparatus for decorating an article, printing ink or electrostatic charges is or are applied in dependence on a digital program in dot form to the article carried by a holder, with individual dots going together to at least form a partial pattern or image. In the case of the latent pattern formed by electrostatic charges, it is then brought into contact with ink particles to form the decoration. In both cases the article is transported along a transportation path through at least one print station provided with an inkjet print head or an ionographic print head, the print head being controllable in dependence on the digital program. The individual nozzles or the electrodes of the respective print head are actuated in accordance with the digital program which is called up for example in dependence on the transportation movement of the article.Type: GrantFiled: September 7, 2001Date of Patent: March 25, 2003Assignee: Werner Kammann Maschinenfrabrik GmbHInventor: Hans-Dieter Niestrath
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Patent number: 6525754Abstract: The invention relates to a photographic recording arrangement for the recording of photographic images onto a band-shaped medium, with a medium source which a supplies a band-shaped medium, with a clamping arrangement which provides a clamping track and a band-shaped medium output at the beginning of the track through which the band-shaped medium is supplied by the medium source along which clamping track the band-shaped medium is guided and tightened and at the end of which track the guided band-shaped medium is clamped by a first holding mechanism for tightening, with at least one recording apparatus for the recording of images onto the tightened band-shaped medium.Type: GrantFiled: October 31, 2001Date of Patent: February 25, 2003Assignee: Gretag Imaging Trading AGInventor: Markus Landolt
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Publication number: 20030030694Abstract: A lead screw coupling that includes two universal joints. The first joint is operatively connected between a first member that includes a mounting site for coupling to a lead screw nut, and a second member. The second joint is operatively connected between the second member and a third member that includes a mounting site for coupling to a movable printer carriage. In a preferred embodiment the universal joints and the members are all defined by a plurality of slanted planar slots that are each cut along a plane that is tilted with respect to an axis of rotation of the lead screw.Type: ApplicationFiled: June 28, 2001Publication date: February 13, 2003Inventors: Adam I. Pinard, Carlos Alberto Gomez
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Patent number: 6511241Abstract: Embodiments of an improved media output paper control system are described, the improved system including a mechanical linkage between a housing door of an image forming device, such as a printer, and a media diverter that changes direction of the media exiting the print engine. The mechanical linkage provides a sure method of switching the media path from a face-down output mode to a face-up output mode, by directing media to the housing door whenever it is open, thus, allowing, the housing door to become an output tray. The preferred mechanical linkage includes a member pivotally connected to, and extending between, the door and the diverter, in such a way that pivoting the door also pivots the diverter to a lesser degree.Type: GrantFiled: January 12, 2001Date of Patent: January 28, 2003Assignee: Hewlett-Packard CompanyInventors: Will Fetherolf, Curtis Gregory Kelsay
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Patent number: 6493013Abstract: In the information recording an reproducing method and apparatus according to the present invention, a piece of picture image information is recorded as an analog quantity or a digital quantity an information carrying medium in a planar manner at a high density, charge potential is read for outputting electric signals to correspond to the recorded picture image information and then the outputted signals are printed out by means of various display unit or output device, with high quality and high resolution as well as ease processing of the information. The information carrying medium provides a long period of storage of information and enables stored picture image information to be repeatedly reproduced with a picture quality according to need.Type: GrantFiled: March 7, 1997Date of Patent: December 10, 2002Assignee: Dainippon Printing Co., Ltd.Inventors: Hiroyuki Obata, Takashi Aono, Hiroshi Mohri, Masato Koike, Hideaki Amano, Norikazu Saito, Makoto Matsuo, Minoru Utsumi, Chihaya Ogusu, Shunsuke Mukasa, Yoshiaki Kudo
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Patent number: 6448990Abstract: Toner processing systems and electronic display devices and methods are described. In one embodiment, a toner processing system comprises an enclosure and an electrostatic toner recovery assembly supported within the enclosure for electrostatically recovering unfused toner from a print media surface. A toner development assembly is supported within the enclosure proximate the electrostatic toner recovery assembly and is configured to receive recovered toner from the electrostatic toner recovery assembly for reuse on the print media surface.Type: GrantFiled: November 7, 2000Date of Patent: September 10, 2002Assignee: Hewlett-Packard CompanyInventors: Thomas Camis, Samuel A. Johnson
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Publication number: 20020092270Abstract: A novel system is provided for automatically generating caution labels for moisture-sensitive semiconductor devices packed in drypack bags. The system has a scanner that scans a lot number or an ID mark representing ID information of a moisture-sensitive device sealed in a drypack bag, and a computing device with a look-up table containing moisture-sensitivity levels assigned to the moisture-sensitive devices. In response to an ID signal produced by the scanner, the computing device searches the look-up table for a moisture-sensitivity level assigned to the packed moisture-sensitive device. The determined moisture-sensitivity level is supplied by the computing device to a label-formatting device for generating a caution label indicating the moisture-sensitivity level. The label-formatting device controls a printer for printing the generated caution label.Type: ApplicationFiled: January 18, 2001Publication date: July 18, 2002Applicant: Advanced Micro Devices, Inc.Inventors: Saragarvani Pakerisamy, Kesmond Kwek
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Patent number: 6396525Abstract: Electronic display devices and methods are described. In one embodiment, an electronic display device comprises a housing and a display area within the housing to display content for a user. Memory is provided within the housing to hold data that is to be rendered into user-viewable content. An electrophotographic assembly is provided within the housing and is configured to electrophotographically render user-viewable content from the data that is held in the memory. A loop of material is disposed proximate the electrophotographic assembly and is configured to receive electrophotographically rendered content and present the content for user viewing within the display area. The electrophotographic assembly can use black toner and the loop of material is selected to provide a black/white contrast when used in connection with the black toner. In one embodiment, the electrophotographic assembly can render content at at least 300 dots per inch (dpi) and better.Type: GrantFiled: November 7, 2000Date of Patent: May 28, 2002Assignee: Hewlett-Packard CompanyInventor: Samuel A. Johnson
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Patent number: 6340984Abstract: An image forming apparatus has: an image memory for storing image data; an image recording device having an image recording position for recording an image onto a recording material at the image recording position; a conveying device for conveying the recording material to the image recording position; and an image correction device for correcting an angle of the image data in accordance with inclination of the recording material conveyed to the image recording position. An image is recorded on the recording material by the image recording device on the basis of the image data corrected by the image correction device.Type: GrantFiled: March 27, 2000Date of Patent: January 22, 2002Assignee: Konica CorporationInventors: Makoto Ui, Fumio Haibara
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Publication number: 20020005888Abstract: In the information recording an reproducing method and apparatus according to the present invention, a piece of picture image information is recorded as an analog quantity or a digital quantity an information carrying medium in a planar manner at a high density, charge potential is read for outputting electric signals to correspond to the recorded picture image information and then the outputted signals are printed out by means of various display unit or output device, with high quality and high resolution as well as ease processing of the information. The information carrying medium provides a long period of storage of information and enables stored picture image information to be repeatedly reproduced with a picture quality according to need.Type: ApplicationFiled: March 7, 1997Publication date: January 17, 2002Applicant: DAI NIPPON PRINTINGInventors: HIROYUKI OBATA, TAKASHI AONO, HIROSHI MOHRI, MASATO KOIKE, HIDEAKI AMANO, NORIKAZU SAITO, MAKOTO MATSUO, MINORU UTSUMI, CHIHAYA OGUSU, SHUNSUKE MUKASA, YOSHIAKI KUDO
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Patent number: 6304342Abstract: An image-processing apparatus and a control method for this apparatus. Image data is received through a communication section and is recorded by a recording section onto a recording material fed from a manual-feeding tray. Recording materials of various sizes can be set on this tray. The correct recording-material size is obtained based on the size of the received image data and is displayed, and an indication is also given to check whether the recording operation is to be performed. If the manual-feeding operation has been selected, an alarm sound indicates that the image data has been received. The processing then proceeds according to the instruction given in response to the display. Further, if it is determined that a recording error has occurred when the recording operation is performed through manual feeding, the image data is stored in a non-volatile storage.Type: GrantFiled: June 12, 1996Date of Patent: October 16, 2001Assignee: Canon Kabushiki KaishaInventor: Yasuo Komada
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Patent number: 6226486Abstract: An image forming apparatus includes an image bearing member for carrying a toner image; a recording material conveyer belt for electrostatically carrying and feeding a recording material; a roller, provided on a side of the recording material conveyer belt not carrying the recording material in a separation position where the recording material is separated from the recording material conveyer belt, for supporting the recording material conveyer belt; a transfer charger for electrostatically transferring the toner image from the image bearing member onto the recording material at a transfer position; a discharge, provided across the recording material conveyer belt from the roller at the separation position, for discharging the recording material upon separation thereof from the recording material conveyer belt; wherein the roller is electrically grounded through an element in which a voltage is generated when the current is supplied thereto.Type: GrantFiled: June 2, 1998Date of Patent: May 1, 2001Assignee: Canon Kabushiki KaishaInventors: Yoshikuni Itou, Masahiro Inoue, Yoichi Kimura, Yuji Bessho
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Patent number: 6204871Abstract: An image-recording drum apparatus includes a rotatably driven clamping drum (100), means (160) for the fastening of a recording medium (M) on the mantle (110) of the clamping drum and a recording unit (200) which is stationary relative to the direction of rotation of the clamping drum and records on the recording medium (M) fastened onto the mantle of the rotating clamping drum (100) image information fed thereto in the form of electrical signals. Mounting means (120) are provided in the interior of the clamping drum (100) for supporting a supply of recording medium (M) wound up into a roll (130). The clamping drum (100) has a slit (140) in its mantle (110) through which the recording medium (M) can be guided from the interior of the clamping drum (100) to its mantle (110) and fastened thereon.Type: GrantFiled: December 8, 1999Date of Patent: March 20, 2001Assignee: Gretag Imaging AGInventors: Guido Keller, Markus Landolt
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Patent number: 6169558Abstract: A laser printing process using a rotary light sensitive roller electrically charged by points by a laser beam and intended for receiving onto the charged points particles of a toner powder and then transferring the same onto a band to be printed, includes a first step wherein the image to be printed is stored, by a first laser beam coming from a first laser source controlled by a computer, onto a rotary memory roller whose surface is covered with a layer of a material capable of assuming either an amorphous or a crystalline structure, this structure being convertible under the action of a laser beam, and this material showing a high difference in reflecting ability according to whether it assumes the one or the other of its structures, and includes a second step wherein the thus stored image is transferred, by the optical reflection of a second laser beam coming from a second laser source having in its whole a linear character, onto the light sensitive roller intended to receive the toner and to transfer theType: GrantFiled: July 28, 1998Date of Patent: January 2, 2001Assignee: Valmet Rotomec S.p.A.Inventors: Renzo Melotti, Sergio Molino
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Patent number: 6155669Abstract: A liquid ink printer, depositing liquid ink to form an image, on a recording medium, including a printing dimension defining a maximum print area to receive the liquid ink, moving along a recording medium path. The printer includes a printbar, including a plurality of nozzles, aligned substantially perpendicular to the recording medium path, to deposit a swath of ink on the recording medium during movement of the recording medium along the recording medium path, a recording medium transport, disposed adjacent the plurality of nozzles, to move the recording medium along the recording medium path, and an encoder system, spaced from the recording medium transport, to determine the position of the recording medium transport with respect to the array of nozzles. The printbar includes a mounting substrate to mount a plurality of printhead dies including the nozzles and an optical reader of the encoder system.Type: GrantFiled: January 8, 1998Date of Patent: December 5, 2000Assignee: Xerox CorporationInventors: Frederick A. Donahue, David G. Anderson
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Patent number: 6075548Abstract: The present invention provides printers and methods of forming an image. One embodiment of the invention provides a printer including a frame; a drive assembly coupled with the frame and configured to transport media along a media path within the printer; an imaging assembly configured to receive a plurality of images and provide the images upon the media; and an image controller configured to selectively vary the resolution of the images. A method of forming an image according to the invention comprises providing media at a print velocity; providing a first reference signal; converting the first reference signal to a second reference signal; forming an image upon media according to the second reference signal; following the forming, outputting media having the image thereon; and adjusting the second reference signal responsive to the forming.Type: GrantFiled: December 16, 1997Date of Patent: June 13, 2000Assignee: Output Technology CorporationInventor: John D. Gillen
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Patent number: 6014154Abstract: There is disclosed a color xerographic printing system which utilizes one full length developer to develop a first latent image and registration marks on the margins along the first latent image. The color printing system of this invention, also utilizes a second developer which only covers the second latent image created over the first latent image to prevent the developed registration marks from attracting more toner.Type: GrantFiled: September 20, 1996Date of Patent: January 11, 2000Assignee: Xerox CorporationInventor: Jean-Michel Guerin
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Patent number: 6008828Abstract: A conducting polymer thin film which comprises a conducting polymer capable of undergoing a physicochemical state change between at least two of an oxidized state, a neutral state, and a reduced state, said conducting polymer in at least one of these states retaining ionic dye molecules incorporated among the molecules thereof. The conducting polymer thin film of the present invention is reduced in power consumption, does not generate any harmful substance, and is capable of being used for continuous image formation. The process for producing the conducting polymer thin film, a method of working the conducting polymer thin film, a method of image formation with the conducting polymer thin film, and an apparatus for image formation are also disclosed.Type: GrantFiled: October 31, 1996Date of Patent: December 28, 1999Assignee: Fuji Xerox Co., Ltd.Inventors: Makoto Furuki, Shigemi Ohtsu, Lyong Pu
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Patent number: 6009302Abstract: An automatic document feeder mounted removably to a computer input device having a medium receiving and supporting surface includes a plurality of interconnectable modular assemblies for defining a medium path that extends from a medium input tray to a medium output tray via the medium receiving and supporting surface of the computer input device. One of the modular assemblies is a main chassis assembly includes an integrally formed main chassis shell having a substantially planar base. The input tray extends upwardly from the base and has a document receiving surface with a concave shape in both the vertical and horizontal planes to help facilitate proper sheet stiffening and alignment for sheet loading purposes onto the receiving and supporting surface of the computer input device. A paper pick and transport mechanism is housed in the main chassis and protrudes through a set of apertures in the output tray.Type: GrantFiled: October 28, 1998Date of Patent: December 28, 1999Assignee: Hewlett-Packard CompanyInventors: A. Justine Worley, Geoffrey C. Mayne, Shawn B. Nielson, D. Bradley Short
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Patent number: 5969742Abstract: A media guidance system for substantially reducing media jamming as the leading (head) end of a web of recording media is directed over the drum surface of an internal drum type laser imagesetter during a media loading procedure. The media guidance system includes a hollow shield, at least one outrigger extending laterally away from the hollow shield, and at least one retractable plate assembly for selectively applying a pressure load against the leading end of the recording media as it approaches the exit aperture of the internal drum.Type: GrantFiled: March 27, 1998Date of Patent: October 19, 1999Assignee: AGFA CorporationInventors: Jeffrey Knox, Larry S. Blake, Arthur R. Newton, Jr.
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Patent number: 5963006Abstract: An apparatus for controlling a stepping motor used in feeding a sheet, for example, in a facsimile device, includes a driving unit for driving a stepping motor, and an controller for controlling the drive unit, depending upon drive conditions of the stepping motor, to control at least one of the excitation method and the drive current of the stepping motor, thereby suppressing the generation of heat upon stopping of the motor, and stabilizing the rotation thereof.Type: GrantFiled: April 9, 1997Date of Patent: October 5, 1999Assignee: Canon Kabushiki KaishaInventor: Atsushi Otani
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Patent number: 5959657Abstract: A collapsible shield for shielding the imaging beam of an internal drum imaging system. The collapsible shield is configured to be positioned in an extended position to enclose the imaging beam during scanning of an imaging material, and positioned in a retracted position during loading of the imaging material into the imaging system.Type: GrantFiled: December 15, 1997Date of Patent: September 28, 1999Assignee: Agfa CorporationInventors: David B. Larsen, Robert Zawojski
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Patent number: 5953807Abstract: A punch assembly including at least one punch installed and aligned on a carrier plate. The carrier plate includes a plurality of openings which are configured to mate with corresponding precision locator pins on an imaging system. The punch assembly is installed on the imaging system by inserting the precision locator pins through the plurality of openings in the carrier plate.Type: GrantFiled: December 30, 1997Date of Patent: September 21, 1999Assignee: Agfa CorporationInventor: Donald J. Garand
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Patent number: 5953036Abstract: Image processing equipment has a wear resistant coating on translational rod bearings which support a scanner for slidable movement in a frame. Titanium nitride is coated over a hardened stainless steel core of the translational rods and bearing pads which are arranged for sliding contact with the rods comprise diamond laminated tungsten carbide.Type: GrantFiled: April 25, 1997Date of Patent: September 14, 1999Assignee: Eastman Kodak CompanyInventors: Edward P. Furlani, Syamal K. Ghosh, Roger S. Kerr
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Patent number: 5949463Abstract: An imaging processor for receiving a medium for processing, the processor comprises an imaging drum having a rigidly attached lip portion for receiving an edge of the medium; and a movable stop disposed on and magnetically attracted toward the imaging drum for receiving a second edge of the medium for permitting the retention of medium of various dimensions.Type: GrantFiled: May 7, 1996Date of Patent: September 7, 1999Assignee: Eastman Kodak CompanyInventors: Roger Stanley Kerr, Edward P. Furlani, Svetlana Reznik
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Patent number: 5946523Abstract: A toner developing quantity detection unit operates a plurality of electrostatic recording units to transfer Y, M, C and K color component toner marks onto a belt. A toner developing quantity correction unit detects toner developing quantities per unit area of color toners on the basis of detection signals of the color component toner marks on the belt optically detected by a sensor. The toner developing quantity correction unit corrects the toner developing quantities so as to allow the toner consuming quantities of the plurality of electrostatic recording units to be substantially the same level, on the basis of the thus detected toner developing quantities.Type: GrantFiled: March 12, 1998Date of Patent: August 31, 1999Assignee: Fujitsu LimitedInventors: Hidenori Fujioka, Kazuhiko Hamazoe, Masakazu Kinoshita, Tsutomu Kawai, Masahiro Wanou, Youji Houki, Kaneastu Uchiyama, Kouichi Kobayashi, Takeo Kojima, Morihisa Kawahara, Shinichirou Yamamoto, Masakazu Kanaka, Hirofumi Nakayasu, Tsutomu Nagatomi
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Patent number: 5903296Abstract: A photoelectric sensor having a photoconductive layer on an electrode and used to form information on an information recording medium. The photoelectric sensor is semiconductive and has such a function that when a voltage is applied between the electrode of the photoelectric sensor and an electrode of the information recording medium while information exposure is being carried out, or when information exposure is carried out with a voltage being applied between the two electrodes, information can be recorded on the information recording medium with an electric current amplified to a level higher than the intensity of a photoelectric current induced by the information exposure, and that even after termination of the information exposure, when the voltage is continuously applied, the photoelectric sensor shows electrical conductivity and continuously effects information recording to the information recording medium.Type: GrantFiled: June 5, 1997Date of Patent: May 11, 1999Assignee: Dai Nippon Printing Co., Ltd.Inventors: Osamu Shimizu, Daigo Aoki, Tomoyuki Idehara, Masanori Akada
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Patent number: 5892529Abstract: An image forming method and an image forming apparatus, wherein a thin film of an electroconductive polymer which holds and releases a dye by means of an electric field enables a construction including a driving circuit, a driving device and an image forming medium to be used for the transfer of an image pattern. The image forming method includes forming a thin film of the electroconductive polymer on an electroconductive substrate, which can take in, hold and release ionic dye molecules in accordance with the change of the state of the electroconductive polymer, that can assume at least two physicochemical states among an oxidized state, a neutral state and a reduced state of the thin film; and bringing the thin film into contact with an image receiving medium. The image receiving medium has suppressed electroconductivity.Type: GrantFiled: March 11, 1997Date of Patent: April 6, 1999Assignee: Fuji Xerox Co., Ltd.Inventors: Satoshi Tatsuura, Shigemi Ohtsu, Makoto Furuki, Lyong Sun Pu
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Patent number: 5883660Abstract: A double-side digital copier reads an image on documents fed into an image reading unit in accordance with a predetermined cycle based on copying conditions such as the number of copies to be made and single/double-side copying, and the number of documents and copy sheets temporarily maintained in the respective circulation paths formed therein. Further the image data obtained by that reading are stored in two memories alternately, one of the memories alone, or both the memories in a predetermined order in accordance with the predetermined cycle, and are read out in a corresponding order, optimizing throughput without increasing the manufacturing costs.Type: GrantFiled: February 28, 1996Date of Patent: March 16, 1999Assignee: Minolta Camera Kabushiki KaishiInventors: Akio Kato, Keichi Kinoshita
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Patent number: 5867199Abstract: A media guidance system for substantially reducing media jamming as the leading (head) end of a web of recording media is directed over the drum surface of an internal drum type laser imagesetter during a media loading procedure. The media guidance system includes a hollow shield, at least one outrigger extending laterally away from the hollow shield, and at least one retractable plate assembly for selectively applying a pressure load against the leading end of the recording media as it approaches the exit aperture of the internal drum.Type: GrantFiled: March 28, 1995Date of Patent: February 2, 1999Assignee: Agfa Division, Bayer CorporationInventors: Jeffrey Knox, Larry S. Blake, Arthur R. Newton, Jr.
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Patent number: 5852462Abstract: An electrophotographic laser printing process using dry low gloss toner formulations for producing either low gloss images or high gloss images. In an instance when a low gloss image is produced, the process selects a low gloss paper, and all other parameters of the process of printing low gloss images are consistent with known parameters for the production of electrophotographic low gloss images using dry toner formulations. In order to produce a high gloss image using a low gloss toner formulation, the method involves selecting a high gloss media, if available, from a media source and reducing the feed speed of the media through the process. Additionally, the fuser roller temperature is increased to ensure maximum fixing and fusing of the toner to produce a single voidless plane of toner on top of the media which exhibits a high reflective index and results in less light scattering at the surface of the toner.Type: GrantFiled: March 7, 1996Date of Patent: December 22, 1998Assignee: Hewlett-Packard CompanyInventors: Michael B. Lloyd, Wallace K. Johnson
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Patent number: 5824715Abstract: A marking composition comprising an energy ray curing resin, a leuco dye and a color developer both of which are low in solubility in toluene, which composition is capable of forming a vivid black color on irradiation with laser beams, and a laser marking method for forming a clear-cut black-colored mark by using the above composition.Type: GrantFiled: February 6, 1996Date of Patent: October 20, 1998Assignee: Nippon Kayaku Kabushiki KaishaInventors: Shoiti Hayashihara, Masaru Kudo, Masaki Shinmoto
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Patent number: 5812182Abstract: An optical information recording medium 10, being a reloadable optical information recording medium, has a first surface on which a pre-group is formed. A lower protective multi-layer film 2 consisting of a total of four film layers, a recording film layer 3, an upper protective film layer 4 and a reflective film layer 5 are successively accumulated on the first surface. On a second surface opposed to the first surface, there is formed an anti-reflective multi-layer film 6 consisting of an anti-reflective film (I) layer 6a and an anti-reflective film (II) layer 6b. Provided with the anti-reflective multi-layer film 6, the optical information recording medium 10 can eliminate reflections of irradiated light on the surface of its substrate.Type: GrantFiled: June 7, 1995Date of Patent: September 22, 1998Assignee: Nippondenso Co., Ltd.Inventor: Shoichi Kawai
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Patent number: 5805309Abstract: An electrophotographic facsimile having a single integrated transmitting and receiving unit includes a photosensitive drum, a charging unit, an exposure unit, a developing unit, a transfer unit, a heating roller, a pressure roller, a latent image erasing lamp, a cleaning blade, an automatic feeding convey roller, a rubber pad, a whiter roller, a contact image sensor, and a pickup roller, in which document transmission, reception and copying operations are implemented by the integrated transmitting and receiving unit.Type: GrantFiled: June 12, 1996Date of Patent: September 8, 1998Assignee: SamSung Electronics Co., Ltd.Inventor: Hyung-Hyu Hwang
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Patent number: 5774156Abstract: There is disclosed a color xerographic printing system which utilizes a full length developer to develop a first latent image and registration marks on the margins along the first latent image. The color printing system of this invention, also utilizes two margin chargers prior to a second developer. Each one of the margin chargers restores the charge under the developed registration marks to prevent the registration marks from attracting more toner.Type: GrantFiled: September 17, 1996Date of Patent: June 30, 1998Assignee: Xerox CorporationInventor: Jean-Michel Guerin
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Patent number: 5764245Abstract: A recording apparatus comprises a carriage for holding a recording head for recording on a recording medium; a platen positioned opposite to the recording head for supporting the recording medium at a recording area; a conveying device rotatable for introducing the recording medium into the recording area; a passage for introducing, after the recording medium passes the recording head, the recording medium into the conveying device by rendering a lower end of the recording medium as a front end in a conveyance direction; and a line buffer memory for temporarily storing serial recording data of one scanning line of the recording head, the recording data being expandable to H stages and M columns.Type: GrantFiled: April 5, 1995Date of Patent: June 9, 1998Assignee: Canon Kabushiki KaishaInventor: Katsuyuki Yokoi
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Patent number: 5751329Abstract: A color printer incorporating the invention hereof includes an ionographic image projection head which employs AC and DC potentials to provide an ion pool from which ions may be projected onto a movable dielectric surface. Plural developer modules are arranged about the dielectric surface, each developer module including an ion imaging head and a color toner module. Each developer module, after ion-beam imaging the movable dielectric surface, develops the charge image on the dielectric surface by bringing it into contact with a single color toner module. A processor controls each ionographic image projection head and each associated toner module to immediately apply the color toner after imaging of the dielectric surface. A transfer station is located downstream from the plural developer modules and enables transfer of the full color toned image from the dielectric surface to a sheet after a single pass of the dielectric surface past the plural developer modules.Type: GrantFiled: June 20, 1996Date of Patent: May 12, 1998Assignee: Hewlett-Packard CompanyInventors: James G. Bearss, Thomas Camis
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Patent number: 5745143Abstract: Fluorescent reference tracks for use in correcting for geometric and other distortions in an image scanning system comprising a rotatable cylindrical drum assembly and an optical subsystem disposed within a protective housing is disclosed. Fluorescent reference tracks illuminable by light outside the visible spectrum, such as ultraviolet (UV) light, are disposed on inner surfaces of inwardly directed film support shoulders of the drum assembly. Respective edges of film containing an image to be scanned are retained on the outer surfaces of the film support shoulders of the drum assembly. As the film is rotated by the drum assembly past a primary light source disposed adjacent one side of the drum, light from the primary light source is directed through the film and is focused by a lens assembly disposed internal to the drum assembly onto a sensor assembly disposed at an opposite side of the drum assembly, which scans the transilluminated film portion.Type: GrantFiled: November 30, 1994Date of Patent: April 28, 1998Assignee: International Business CorporationInventors: Albert D. Edgar, Steven C. Penn
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Patent number: 5739834Abstract: A master electric charge retaining medium 2 having electrostatic charge information recorded thereon is disposed face-to-face with a reproductive electric charge retaining medium 3, and a voltage is applied between the respective electrodes of the two electric charge retaining media to induce an electric discharge, thereby inversely reproducing the electrostatic charge information on the reproductive electric charge retaining medium, as shown in FIG. 2(b). It is possible to effect the reproduction any number of times while preventing the lowering in the contrast of the master electric charge retaining medium by making the electrostatic capacity of the master electric charge retaining medium adequately larger than the electrostatic capacity of the reproductive electric charge retaining medium.Type: GrantFiled: September 12, 1994Date of Patent: April 14, 1998Assignee: Dai Nippon Printing Co., Ltd.Inventors: Masato Okabe, Masayuki Iijima, Takashi Aono
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Patent number: 5721581Abstract: A facsimile apparatus comprises a facsimile unit for sending data corresponding to image data that has been received, and a printer unit for performing image recording by discharging ink droplets in accordance with data sent from the facsimile unit. A first CPU for the control of the facsimile unit sends, after one page of image data, data in a predetermined pattern and further a paper exhausting command to the printer. A second CPU of the printer unit performs a paper exhausting operation upon receiving the paper exhausting command, after recording of the predetermined pattern, and upon conveying the recording paper up to a predetermined position, sends a signal for starting detection of the predetermined pattern to the first CPU. The first CPU thereby receives a detection signal from a photo sensor. The second CPU further conveys the recording paper, and at a timing of exhausting out of the apparatus, sends a signal for the detection end of the predetermined pattern to the first CPU.Type: GrantFiled: November 23, 1994Date of Patent: February 24, 1998Assignee: Canon Kabushiki KaishaInventors: Atsushi Saito, Makoto Kobayashi, Akio Okubo, Junji Iguchi, Keizo Sasai, Yasuyuki Shinada, Katsumi Obana, Yasuhiko Ikeda, Yukio Nohata, Yuji Shimahara, Shigeyuki Sugiyama, Noriyuki Aoki
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Patent number: 5712676Abstract: A scanner printer includes a scanner portion for reading written information on an original manuscript paper and a printer portion for printing written information on printing paper, both of which are integrally combined within a single casing. The respective paper feeding into the scanner portion and the printer portion is performed through a common feeding passage. Thus, the overall dimension of the scanner printer can be downsized. A pointer directs the original manuscript and the printing paper into an original manuscript passage and into the printer portion, respectively. Hence, wear an on a surface of a photo-sensitive drum of the printer portion can be greatly reduced thus maintaining accurate and sharp printing characteristics.Type: GrantFiled: April 8, 1994Date of Patent: January 27, 1998Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kosuke Takaki, Takao Araki
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Patent number: 5701560Abstract: In an image forming apparatus forming an electrostatic latent image on a surface of a photosensitive body by exposing the charged photosensitive body, developing the latent image using a toner to form a toner image, transferring the toner image to a image holding body, and erasing the remaining charge on the surface of the photosensitive body after completion of the transferring, the photosensitive body is formed of a base material consisting of As.sub.2 Se.sub.3 or a-Si, and wherein the wavelength .lambda..sub.0 of the writing light used for the exposure is limited to a wavelength not larger than 780 nm, the wavelength .lambda..sub.1 of charge erasing light used for the charge erasing is limited to a wavelength smaller than 680 nm, and the time T.sub.1 from completion of the exposure to initiation of the development is limited within the range of 70 milliseconds to 300 milliseconds.Type: GrantFiled: July 3, 1996Date of Patent: December 23, 1997Assignee: Hitachi Koki Co., Ltd.Inventors: Akio Tsujita, Masayasu Anzai, Tsuneaki Kawanishi
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Patent number: 5694158Abstract: An image forming apparatus which converts character or pattern information into bit map information (pixel information) and forms an image based thereon. The image forming apparatus includes a light-beam generator for generating a modulated light beam, a light-beam deflector for scanning an image carrier, a device for feeding a sheet to registration rollers and a driver for driving the image carrier. A time period is provided to operate the light-beam deflector and the feeding device before the driver starts to drive the image carrier to form an image.Type: GrantFiled: March 23, 1995Date of Patent: December 2, 1997Assignee: Canon Kabushiki KaishaInventors: Junichi Kato, Masaki Ojima, Takahiro Inoue, Masahiro Goto, Koichi Hiroshima, Shinichi Tsukida, Manabu Takano, Hiromichi Yamada, Koichi Suwa, Yoji Serizawa, Akio Noguchi, Yukihide Ushio, Shimpei Matsuo, Seiji Uchiyama, Makoto Takeuchi, Kazuro Yamada
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Patent number: 5678124Abstract: A printing apparatus includes a measuring device for measuring the elapsed time for feeding a sheet of paper from its top edge to its bottom edge by feeding a first paper; a paper size calculating device for calculating a paper size on the basis of the measured time and the paper feeding rate which is determined by the printing apparatus; a calculated result transmitting device for transmitting the paper size calculated by the calculating device and informing an operator of the paper size; a comparing device for comparing the paper size calculated by the calculating device with the paper size specified by an external apparatus; a size setting device for setting within the printing apparatus the calculated paper size as a specified paper size for printing a second and later sheets when the above comparison indicates that both sizes match each other; a display device for displaying a mismatch of the paper size in order to inform an operator of the mismatch when the above comparison indicates that the paper sizeType: GrantFiled: April 12, 1995Date of Patent: October 14, 1997Assignee: Canon Kabushiki KaishaInventor: Yutaka Tokura
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Patent number: 5671005Abstract: A method and apparatus for maintaining contact between the recording media and the media support surface of a scanning system. A pressure load is applied on the recording media in the immediate vicinity of a scanning laser beam, thereby ensuring surface to surface contact between the recording media and the media support surface while scanning.Type: GrantFiled: February 21, 1995Date of Patent: September 23, 1997Assignee: AGFA Division, Bayer CorporationInventors: Robert P. McNay, Donald J. Garand, Norris C. LeMay, Robert D. Pepe, David P. Viola
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Patent number: 5642146Abstract: An optical device for forming a latent image on the surface of a photosensitive member by an optical head, developing the latent image and transferring the developed toner image onto a transfer sheet at a transferring section. The transfer sheet is transported at least at the transfer section in a direction inclined relative to a direction perpendicular to the rotation axis of the photosensitive member at an angle of distortion of the latent image which occurs when the optical head forms the latent image on the surface of the photosensitive member, thereby toner particles in the transfer section receive twisting force and the distortion of the latent image is corrected when the latent image is transferred to the transfer sheet.Type: GrantFiled: May 25, 1994Date of Patent: June 24, 1997Assignee: Minolta Camera Kabushiki KaishaInventor: Tadamitsu Uchiyama
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Patent number: 5635971Abstract: The electrostatic information recording medium of the invention has on at least an electrode an information recording layer comprising a product obtained by contact of a polymer having a fluorine-containing aliphatic ring structure with fluorine gas, on which layer a latent image charge trap is retained. This electrostatic information recording medium enables electrostatic information such as an electrostatic latent image to be recorded in the form of a charge trap rather than an electrostatic charge, and so may be used as an electrostatic printing master by way of example.Type: GrantFiled: May 27, 1994Date of Patent: June 3, 1997Assignee: Dai Nippon Printing Co., Ltd.Inventors: Takashi Aono, Yoshiaki Tsuruoka, Masayuki Iijima, Kayoko Sugiyama
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Patent number: 5619243Abstract: An image recording and erasing method for recording images and erasing the same repeatedly by use of a reversible thermosensitive recording medium which is capable of reversibly changing the transparency and color tone thereof depending upon the temperature thereof, includes the steps (a) disposing a light-to-heat conversion sheet above the reversible thermosensitive recording medium; (b) applying a laser beam to the light-to-heat conversion sheet to heat the reversible thermosensitive recording medium by the heat generated by the light-to-heat conversion sheet upon the application of the laser beam thereto, thereby forming images on the reversible thermosensitive recording medium and/or erasing images therefrom; and (c) removing the light-to-heat conversion sheet away from the reversible thermosensitive recording medium.Type: GrantFiled: November 18, 1994Date of Patent: April 8, 1997Assignee: Ricoh Company, Ltd.Inventors: Yoshihiko Hotta, Akira Suzuki, Makoto Obu, Takashi Kitamura
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Patent number: 5581293Abstract: An electrophotographic printer especially for bar code printing having an image transfer drum for placing an image onto a continuous form to be printed moved along a path by a form feed. A fusing roller is located downstream to fix the image on the form. The form is fed along a path past the transfer drum and fusing roller and after printing the last printed form is separated from the continuous form downstream of the image transfer drum leaving a leading edge on the unprinted form. The separation of the printed form is signaled to a controller which disables the image transfer device and fusing roller and causes the form feed to reverse moving the new leading edge upstream to a location immediately adjacent the image transfer drum. Various forms of printing, fixing the image onto the form, feeding the form and various types of forms such as barcoded labels on a carrier continuous form are disclosed.Type: GrantFiled: April 13, 1993Date of Patent: December 3, 1996Assignee: Intermec CorporationInventor: Christopher A. Wiklof