Cleaning Member Patents (Class 399/326)
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Patent number: 10983456Abstract: A developer cartridge may include: a first gear having a small-diameter gear portion and a large-diameter gear portion; and a second gear including: a first columnar portion centered on a second axis; a second columnar portion having a smaller diameter than the first columnar portion; a first engagement portion extending along a portion of a peripheral surface of the first columnar portion and engageable with the small-diameter gear portion; a second engagement portion extending along a portion of a peripheral surface of the second columnar portion and positioned closer to a housing than the first engagement portion in an axial direction and engageable with the large-diameter gear portion; and a protruding portion protruding in the axial direction and rotatable together with the first engagement portion and the second engagement portion. The second engagement portion may engage the large-diameter gear portion after the first engagement portion engages the small-diameter gear portion.Type: GrantFiled: July 22, 2019Date of Patent: April 20, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Keita Shimizu, Takashi Shimizu, Hideshi Nishiyama, Naoya Kamimura, Tomonori Watanabe
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Patent number: 10831129Abstract: A developer cartridge may include: a first gear having a small-diameter gear portion and a large-diameter gear portion; and a second gear including: a first columnar portion centered on a second axis; a second columnar portion having a smaller diameter than the first columnar portion; a first engagement portion extending along a portion of a peripheral surface of the first columnar portion and engageable with the small-diameter gear portion; a second engagement portion extending along a portion of a peripheral surface of the second columnar portion and positioned closer to a housing than the first engagement portion in an axial direction and engageable with the large-diameter gear portion; and a protruding portion protruding in the axial direction and rotatable together with the first engagement portion and the second engagement portion. The second engagement portion may engage the large-diameter gear portion after the first engagement portion engages the small-diameter gear portion.Type: GrantFiled: July 22, 2019Date of Patent: November 10, 2020Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Keita Shimizu, Takashi Shimizu, Hideshi Nishiyama, Naoya Kamimura, Tomonori Watanabe
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Patent number: 9291969Abstract: A base for a fixing belt includes a nickel layer; and a copper layer, both laminated each other, wherein an orientation ratio calculated based on a ratio between a peak strength of crystal face and a peak strength of crystal face by X-ray diffraction analysis of the copper layer is 0.1 or less. The base for the fixing belt further includes a protective layer, disposed on a surface of the copper layer opposite a surface on which the nickel layer is laminated, and the protective layer is formed of nickel.Type: GrantFiled: February 20, 2014Date of Patent: March 22, 2016Assignee: Ricoh Company, Ltd.Inventors: Hiroyuki Endo, Shigeru Fujita, Yuzuru Kudoh, Yasuhide Fujiwara
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Patent number: 9026021Abstract: An image forming apparatus is provided. The image forming apparatus includes a pair of register rollers including a driving roller and a dust remover roller, a dust scraper to scrape off dust from the dust remover roller, a dust container box, including a lateral plate and a protrusion, to contain the dust scraped off from the dust remover roller, a roller bearing attached to the lateral plate to be immovable and to rotatably support the dust remover roller, a scraper support swingably supported by the dust container box and to support the dust scraper, and a frame to swingably support the dust container box via a protrusion support, to rotatably support the driving roller, while a rotation axis of the driving roller is fixed to the frame, and to support the roller bearing to be slidable in an in-axes direction between the driving roller and the dust remover roller.Type: GrantFiled: January 27, 2012Date of Patent: May 5, 2015Assignee: Brother Kogyo Kabushiki KaishaInventor: Yoshikazu Shimizu
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Patent number: 9014607Abstract: A heating device includes a fixing member; a pressure member that comes in pressure contact with a surface of the fixing member; and a cleaning web unit. The cleaning web unit includes a contact roller that contacts the pressure member via a web that is impregnated with a lubricant agent, a supplying roller that supplies a new web, a roll-up roller that rolls up and retrieves the web that has been used for wiping off adhering matter from the pressure member, and a lubricant agent absorption member that absorbs the lubricant agent by contacting the web at a web path extending from the supplying roller to the contact roller.Type: GrantFiled: March 11, 2011Date of Patent: April 21, 2015Assignee: Ricoh Company, Ltd.Inventor: Masahiro Watanabe
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Patent number: 8965247Abstract: A fixation unit includes a fixation member and a housing containing therein the fixation member. The fixation member is configured to thermally fix a developer image onto a medium being conveyed from an image formation unit to the fixation unit along a medium conveyance path, wherein the developer image is formed at the image formation unit and transferred onto the medium by the image formation unit. The developer attachment member is replaceably provided to the fixation unit and configured to attach thereto a part of the developer that is scattered in the neighborhood of the conveyance path.Type: GrantFiled: May 29, 2013Date of Patent: February 24, 2015Assignee: Oki Data CorporationInventor: Kazuoki Katayama
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Patent number: 8918039Abstract: A cleaning device includes a first cleaning roller and a second cleaning roller. The first cleaning roller contacts a member to be cleaned, rotates, separates any matter to be removed that is stuck on the member to be cleaned from the member to be cleaned, and causes the matter to be removed to adhere to the first cleaning roller. The member to be cleaned rotates or circulates. The first cleaning roller has an elastic peripheral surface. The second cleaning roller has a peripheral surface whose hardness is higher than that of the first cleaning roller. The second cleaning roller pushes the first cleaning roller and rotates while causing the first cleaning roller to be elastically recessed, to separate the matter to be removed that is stuck on the first cleaning roller therefrom and cause the matter to be removed to adhere to the second cleaning roller.Type: GrantFiled: March 26, 2013Date of Patent: December 23, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Kiichiro Arikawa, Hiroko Furukata, Masahiro Ishino, Junichi Uchiyama
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Patent number: 8897685Abstract: A fixing device includes a rotary fuser member, a rotary pressure member, and a cleaning system. The rotary fuser member is subjected to heating. The rotary pressure member is opposite the fuser member. The fuser member and the pressure member are pressed against each other to form a fixing nip therebetween through which a recording medium is conveyed as the fuser member and the pressure member rotate together. The cleaning system cleans the pressure member, and includes a cleaning web, a web supply mechanism, and a controller. The cleaning web at least partially contacts the pressure member to wipe the pressure member. The cleaning web is mounted on the web supply mechanism to be released into contact with the pressure member. The controller is operatively connected with the web supply mechanism to control an amount of supply of the cleaning web.Type: GrantFiled: February 7, 2012Date of Patent: November 25, 2014Assignee: Ricoh Company, Ltd.Inventor: Keisuke Kubota
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Patent number: 8855538Abstract: An apparatus and method are provided for cleaning a pressure roll of a fuser unit useful in printing by way of a cleaning member having a compressible surface portion configured to contact the pressure roll, the compressible surface portion comprising a porous material configured to absorb a release agent from the pressure roll.Type: GrantFiled: November 27, 2012Date of Patent: October 7, 2014Assignee: Xerox CorporationInventors: Erwin Ruiz, Jeffrey Nyyssonen Swing, David S. Derleth, Charles T. Facchini, II, Steven Russel, Jorge M. Rodriguez
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Patent number: 8827410Abstract: A method of cleaning a heated drum within a continuous web printer includes operating an actuator to rotate a drum that is heated to a first temperature. The drum rotates in a process direction of a media web contacting the drum and heats the media web as the media web moves over a portion of the drum. The method also includes stopping movement of the media web, heating the drum to a second temperature that is greater than the first temperature, and operating the actuator to rotate the drum against a portion of the stopped media web to transfer ink from the drum to the portion of the stopped media web.Type: GrantFiled: May 4, 2012Date of Patent: September 9, 2014Assignee: Xerox CorporationInventors: Joseph C. Sheflin, Michael J. Levy, Jason M. LeFevre
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Patent number: 8824004Abstract: An image forming apparatus and method are provided. The image forming apparatus includes a communication interface unit that receives printing data, an image forming unit that performs an ordinary printing to form an image on printing paper based on the printing data, a paper supplying unit that provides the printing paper to the image forming unit along with a paper supplying route, a determination unit that determines whether a functional printing may be performed on the paper supplying route in an interval section between sheets of the printing paper, and a controller that controls the image forming unit to perform a functional printing, wherein the ordinary printing is a printing performed on one or more sheets of printing paper, and the functional printing is a printing performed in an interval section between the sheets of printing paper.Type: GrantFiled: July 28, 2011Date of Patent: September 2, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Myung-ho Kyung, Jeong-hwan Kim, Byoung-chul Bae
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Patent number: 8811870Abstract: A fixing apparatus for fixing a toner image formed on a recording material includes a fixing roller; a cleaning unit for cleaning the fixing roller, the cleaning unit including a first shaft, a second shaft, and cleaning fabric extended between the first shaft and the second shaft and wound on the first shaft and the second shaft to be fed out from the first shaft and wound up on the second shaft, wherein at the time of cleaning the fixing roller, an outer surface of the cleaning fabric wound on the first shaft contacts the fixing roller, and wherein an outer diameter of the cleaning fabric wound on the first shaft is larger than that wound on the second shaft irrespective of amount of the cleaning fabric on the first shaft.Type: GrantFiled: March 28, 2011Date of Patent: August 19, 2014Assignee: Canon Kabushiki KaishaInventors: Keisuke Mitsuhashi, Hideo Nanataki
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Patent number: 8755724Abstract: A fixing device including: an endless fixing belt that conveys a sheet-like medium having a toner image formed thereon; a heating member on which the fixing belt is wound and which includes a heater therein; a fixing member on which the fixing belt is wound; a pressing member that is disposed so as to face the fixing member with the fixing belt interposed therebetween; a separator that comes into contact with the surface of the pressing member and prevents the sheet-like medium from being wound on the pressing member; and a polisher that polishes the surface of the pressing member.Type: GrantFiled: January 10, 2012Date of Patent: June 17, 2014Assignee: Ricoh Company, LimitedInventor: Yoshikuni Sasaki
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Publication number: 20140086610Abstract: Various variable gloss reduction techniques are disclosed. In one embodiment, a gloss reduction technique is disclosed using a textured roller and a wiper impregnated with fuser oil to create a differential gloss pattern that reduces the gloss of an image printed on a substrate. In one embodiment, a gloss reduction technique is disclosed using a combination of heat and pressure to create a differential gloss pattern that reduces the gloss in specific regions of an image printed on a substrate. In one embodiment, a gloss reduction technique is disclosed using a differential gloss pattern to generate a security mark on a printed image to prevent against copying or fraudulent misrepresentation of the image.Type: ApplicationFiled: October 15, 2013Publication date: March 27, 2014Applicant: ELECTRONICS FOR IMAGING, INC.Inventors: Leon WILLIAMS, Thor OLSON
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Patent number: 8611800Abstract: An image forming apparatus includes an image carrier; a charging unit; an electrostatic latent image forming unit; a development unit that houses an electrostatic latent image developer containing toner particles and inorganic particles added thereto and that develops the electrostatic latent image to form a toner image; an intermediate transfer body to which the toner image is transferred and the surface of which contains a resin material and fluorocarbon resin particles; a first transfer unit that first transfers the toner image to the surface of the intermediate transfer body; a second transfer unit that second transfers the transferred toner image to a recording medium; and a cleaning unit that cleans the surface of the intermediate transfer body after the toner image is second transferred to the recording medium, the cleaning unit including a cleaning blade provided in contact with the surface of the intermediate transfer body.Type: GrantFiled: August 4, 2011Date of Patent: December 17, 2013Assignee: Fuji Xerox Co., Ltd.Inventor: Shinichi Kawamata
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Patent number: 8606156Abstract: Disclosed is a fixing unit including a fixing member; a pressure member brought into press-contact with a front surface of the fixing member; a pressure mechanism that changes a position at which the pressure member is brought into press-contact with the fixing member, the pressure mechanism being capable of controlling a presence or absence and a width of the nip part; and a cleaning web unit having a contact roller brought into contact with at least the pressure member via a web, a supply roller that supplies a new web, and a winding roller that winds and collects the web having wiped off an attachment on the pressure roller. The contact roller is caused to move following a movement of the pressure mechanism to maintain a constant contact position, a constant contact direction, and a constant contact force thereof with respect to the pressure member.Type: GrantFiled: March 11, 2011Date of Patent: December 10, 2013Assignee: Ricoh Company, Ltd.Inventor: Masahiro Watanabe
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Patent number: 8565657Abstract: According to various illustrative embodiments, an apparatus for redistributing release agent on a fuser surface of an image forming device is provided. The apparatus includes a fuser surface for contacting a sheet of media having an image formed thereon by the image forming device, the fuser surface moving in a traveling direction; and a flexible blade for redistributing the release agent on the fuser surface from a first post-fusing distribution to a second distribution, the flexible blade contacting the release agent on the fuser surface at a contact area and pressing the release agent against the fuser surface to redistribute the release agent from the first post-fusing distribution to the second distribution, wherein the flexible blade is adapted to redistribute the release agent such that the second distribution is more uniform across the fuser surface than the first post-fusing distribution.Type: GrantFiled: October 28, 2010Date of Patent: October 22, 2013Assignee: Xerox CorporationInventors: Augusto E. Barton, James Padula
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Patent number: 8520257Abstract: Color reproduction data of a print obtained by forming an image on a print medium corresponding to an input type thereof, and spectral data of a laminate film corresponding to an input type thereof are acquired. A reference color is determined based on color information of a designated color to be reproduced on a protective-film-covered print. Based on the acquired color reproduction data and the acquired spectral data, the determined reference color is converted into another reference color depending on the print without the laminate film thereon. A color value depending on a color patch that is selected as a color closest to the designated color, under a condition where the laminate film is not laminated, from a designated color adjusting color chart printed based on color values depending on the converted other reference color or colors close to the other reference color, is acquired.Type: GrantFiled: September 9, 2010Date of Patent: August 27, 2013Assignee: FUJIFILM CorporationInventor: Eiji Teraue
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Patent number: 8509665Abstract: According to various illustrative embodiments, an apparatus for redistributing release agent on a fuser surface of an image forming device is provided. The apparatus has a fuser surface for contacting a sheet of media having an image formed thereon by the image forming device, the fuser surface moving in a traveling direction; and a smoothing roll for redistributing the release agent on the fuser surface from a first post-fusing distribution to a second distribution, the smoothing roll contacting the release agent on the fuser surface at a contact area and pressing the release agent against the fuser surface to redistribute the release agent from the first post-fusing distribution to the second distribution. The smoothing roll is adapted to redistribute the release agent such that the second distribution is more uniform across the fuser surface than the first post-fusing distribution.Type: GrantFiled: December 17, 2010Date of Patent: August 13, 2013Assignee: Xerox CorporationInventors: Augusto E. Barton, James Padula
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Patent number: 8422928Abstract: A fixing unit is provided with a fixing member to heat a recoding medium and to fix a toner image on the recording medium; a pressure member to press the fixing member to form a nip portion in which a recording medium carrying a toner image is nipped; an auxiliary heating member to heat the surface of the fixing member; and a surface recovery member, arranged at a downstream side of the first auxiliary heating member in a rotational direction of the fixing member, for recovering damage to a surface of the fixing member by making contact with and sliding on the fixing member.Type: GrantFiled: November 29, 2010Date of Patent: April 16, 2013Assignee: Konica Minolta Business Technologies, Inc.Inventors: Masami Maruko, Susumu Okui
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Patent number: 8355659Abstract: A fixing device of the present invention includes: an external heating belt which is to contact with a surface of a fixing roller so as to heat up the fixing roller; and a cleaning member (a scraper and/or cleaning pad) which is to contact with the external heating belt. The cleaning pad which is impregnated with silicone oil is to contact with a surface of the external heating belt, thereby applying the silicone oil (release agent) to the surface of the external heating belt. This makes it possible to prevent generation of an offset.Type: GrantFiled: January 13, 2010Date of Patent: January 15, 2013Assignee: Sharp Kabushiki KaishaInventors: Toshiaki Kagawa, Susumu Murakami, Masashi Hirai, Atsushi Ide, Takashi Mukai
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Patent number: 8320809Abstract: A cleaning apparatus using a web sheet includes: a send-out roller that is wound with the web sheet; a take-up roller that is connected to an end of the web sheet; and a rotation-regulating and canceling portion that regulates rotation of the send-out roller and cancels the regulation according to tension of the web sheet between the send-out roller and the take-up roller; wherein the web sheet is sent out from the send-out roller and taken up by the take-up roller, the web sheet is brought into contact with another roller during the sending out and taking up operation, and extraneous matters that have adhered to the other roller are removed.Type: GrantFiled: July 8, 2009Date of Patent: November 27, 2012Assignee: Sharp Kabushiki KaishaInventors: Takashi Yamanaka, Yasunori Minakuchi, Kimihide Tsukamoto, Shinichi Azumi
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Publication number: 20120114355Abstract: An image forming apparatus includes a fixing roller, a heating section, a pressurizing roller, an oil roller, a first cleaning roller, and a control section. The pressurizing roller is pressed against the fixing roller. The oil roller abuts against the fixing roller and is capable of being rotated by rotation of the fixing roller to apply oil onto a surface of the fixing roller. The first cleaning roller abuts against the oil roller and is capable of being rotated by rotation of the oil roller to clean a surface of the oil roller. When the control section determines that the fixing roller and the pressurizing roller have performed fixing on a predetermined number and more of consecutive sheet surfaces, the control section carries out a first control process which causes the heating section to stop and the fixing roller to rotate for a first predetermined time period after the fixing.Type: ApplicationFiled: November 9, 2011Publication date: May 10, 2012Inventors: Masaki Amemiya, Yasunori Minakuchi
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Patent number: 8073373Abstract: An image forming apparatus includes: a pattern determination information calculator for calculating printing pattern determination information on an original; a pressure changer for changing the pressure of a pressing member of a cleaning device; and a controller for varying the pressing force of the pressing member by controlling the pressure changer in accordance with the printing pattern determination information calculated by the pattern determination information calculator. The controller controls the contact pressure driver of the pressing roller so as to weaken the pressing force when that controller determines that printing paper printed with high density patterns or high coverage patterns will be passed through.Type: GrantFiled: August 20, 2008Date of Patent: December 6, 2011Assignee: Sharp Kabushiki KaishaInventor: Kenji Kitami
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Publication number: 20110222923Abstract: A heating device includes a fixing member; a pressure member that comes in pressure contact with a surface of the fixing member; and a cleaning web unit. The cleaning web unit includes a contact roller that contacts the pressure member via a web that is impregnated with a lubricant agent, a supplying roller that supplies a new web, a roll-up roller that rolls up and retrieves the web that has been used for wiping off adhering matter from the pressure member, and a lubricant agent absorption member that absorbs the lubricant agent by contacting the web at a web path extending from the supplying roller to the contact roller.Type: ApplicationFiled: March 11, 2011Publication date: September 15, 2011Inventor: Masahiro WATANABE
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Patent number: 7962081Abstract: There is disclosed an improved fuser cleaning system in which a strip of flexible material, including first second and third portions, is fed from a source roll to a take-up roll in such a manner that a fuser roll is cleaned or oiled. A first detectable mark may be disposed on a side of the strip of flexible material in one of the first and second portions. During operation of the fuser cleaning system, the third portion is taken up by the take-up roll and when an amount of the third portion is taken up by the take-up roll, the first detectable mark is detected by a sensor and a signal, indicating that the amount of the third portion has been taken up by the take-up roll, is transmitted to a controller. A second detectable mark may be disposed on the side of the strip of flexible material.Type: GrantFiled: September 30, 2008Date of Patent: June 14, 2011Assignee: Xerox CorporationInventors: Steven M Russel, Stephen B Williams, Richard E Eisemann
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Patent number: 7813690Abstract: A cleaning device removes a toner attached to an image carrier of an electrophotographic-type image forming apparatus. The cleaning device includes a cleaning blade, a housing and a block member. The cleaning blade is in contact with a surface of the image carrier to removes the toner. The housing stores the toner removed by the cleaning blade. The block member causes the toner to temporarily remain the toner in a vicinity of a distal end of the cleaning blade. The block member is formed of a sheet-shaped elastic member. One side of the block member is fixed to the housing. A repulsive force against bending in an end portion of the block member in a longitudinal direction is substantially smaller than a repulsive force against bending in a center portion of the block member.Type: GrantFiled: March 13, 2007Date of Patent: October 12, 2010Assignee: Fuji Xerox Co., Ltd.Inventors: Tomoya Ichikawa, Shigeo Ohno, Masayuki Kono, Toshiyuki Matsui
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Patent number: 7783239Abstract: A fuser unit for an image forming apparatus including: a tape-like cleaning member that abuts on a fuser roller and cleans its peripheral surface; a press roller that presses the fuser roller via the cleaning member; a feed roller that feeds said cleaning member; a wind roller that winds the cleaning member therearound; and a controller that actuates a fixing function before an image formation, stops it after said image formation, and rotates and stops the wind roller and/or the feed roller to control a winding quantity of the cleaning member, wherein said controller calculates a toner image amount based on the prescribed number of pages by tracking from a page on which an image is formed just before the image formation is completed, and determines whether or not said cleaning member is wound around the wind roller during a non-fixing period based on the calculated toner image amount.Type: GrantFiled: March 12, 2008Date of Patent: August 24, 2010Assignee: Sharp Kabushiki KaishaInventors: Takashi Yamanaka, Kimihide Tsukamoto, Tatsuya Shinkawa, Kan Mukai
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Patent number: 7708377Abstract: A blade engagement apparatus for metering release agent onto an image forming device associated moving surface, such as a Solid Ink Jet drum. The blade engagement apparatus includes a blade positioning mechanism having a blade holder rotated about a fixed pivot point disposed a distance LD from the moving surface. A plurality of metering blades extending from the blade holder each include a blade tip disposed a distance LB from the pivot point such that LB is greater than LD. A replacement blade is brought into a working position in deflected engagement with the moving surface for metering a release agent onto the surface while the used blade is moved into a non-operational suspended position. Various blade replacement strategies are used to initiate a blade replacement operation.Type: GrantFiled: August 29, 2008Date of Patent: May 4, 2010Assignee: Xerox CorporationInventors: Bruce E. Thayer, Richard W. Seyfried
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Patent number: 7706733Abstract: A printer includes an idler movement mechanism that rotates a transfix member at a speed corresponding to a rotational speed for a rotating image member before moving the transfix member into engagement with the rotating image member to form a nip.Type: GrantFiled: April 10, 2007Date of Patent: April 27, 2010Assignee: Xerox CorporationInventors: David James Pearce, Martin Richard Walsh
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Publication number: 20100080633Abstract: There is disclosed an improved fuser cleaning system in which a strip of flexible material, including first second and third portions, is fed from a source roll to a take-up roll in such a manner that a fuser roll is cleaned or oiled. A first detectable mark may be disposed on a side of the strip of flexible material in one of the first and second portions. During operation of the fuser cleaning system, the third portion is taken up by the take-up roll and when an amount of the third portion is taken up by the take-up roll, the first detectable mark is detected by a sensor and a signal, indicating that the amount of the third portion has been taken up by the take-up roll, is transmitted to a controller. A second detectable mark may be disposed on the side of the strip of flexible material.Type: ApplicationFiled: September 30, 2008Publication date: April 1, 2010Applicant: XEROX CORPORATIONInventors: Steven M. Russel, Stephen B. Williams, Richard E. Eisemann
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Patent number: 7668482Abstract: An image forming apparatus that is capable of solving the problem of abrasion or load caused by an unevenly installed cleaning member and capable of realizing excellent cleaning performance. A cleaning section in the image forming apparatus has a cleaning member in the shape of a board, which contacts the surface of the charging roller through it's a first surface, and a fixing member, which supports the cleaning member at least at an upstream side of a contact position between the charging roller and the cleaning member with respect to the rotation direction of the charging roller. The fixing member is formed so as to not contact the cleaning member in an area of a second surface which is opposite to the contact part of the charging roller and the cleaning member.Type: GrantFiled: January 22, 2007Date of Patent: February 23, 2010Assignee: Oki Data CorporationInventor: Junichi Ushikubo
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Patent number: 7561841Abstract: A fuser apparatus includes first and second rolls rotatably mounted parallel to and in contact with each other to form a nip through which print media with a toner image thereon is passed to fuse the image to the print media. A cleaning system is provided for cleaning one of the rolls, such as the fuser roll. The cleaning system includes a rotatably mounted cleaning roll, an outer surface thereof including a pile. A flicker bar is arranged to detach toner from the pile.Type: GrantFiled: December 21, 2005Date of Patent: July 14, 2009Assignee: Xerox CorporationInventors: Martin Callis, Riley Brede, Pieter Mulder, John Poxon, Ian Pitts, Nicholas Baxter
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Patent number: 7548717Abstract: A fixing apparatus that fuses and firmly adheres an unfixed developer onto a recording medium includes a heating roller and a pressure roller; a belt-shaped cleaning member that is disposed so as to abut on the heating roller and cleans the surface of the heating roller, the cleaning member being impregnated with oil in advance; a feed roller that sends out the cleaning member; a wind-up roller that winds up the cleaning member having cleaned the heating roller; a press-contact roller disposed so as to press the cleaning member against the heating roller on which the cleaning member abuts; and an oil absorbing layer that is disposed on an outer circumferential surface of the press-contact roller and absorbs oil exudation out of the cleaning member.Type: GrantFiled: May 24, 2006Date of Patent: June 16, 2009Assignee: Sharp Kabushiki KaishaInventors: Yoshinobu Tateishi, Hiroaki Hori, Yoshiyuki Nagai, Toshiya Mikita
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Patent number: 7546078Abstract: An image heating apparatus includes an endless belt for heating an image on a recording material at a nip; a pressing pad for pressing the belt at the nip; a supporting member for supporting the belt at an inner surface thereof, the supporting member being displaceable to move the belt in a widthwise direction of the belt; a lubricant application member for applying lubricant onto the inner surface of the belt; and displacing means for displacing the lubricant application member in accordance with a displacement of the supporting member.Type: GrantFiled: September 8, 2006Date of Patent: June 9, 2009Assignee: Canon Kabushiki KaishaInventors: Kazuhisa Okuda, Masahiko Yokota, Michiaki Endo, Shinsuke Ubayashi, Takatoshi Chiba, Hiromasa Katayama, Hiromitsu Uchida
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Patent number: 7483662Abstract: A fixing apparatus that firmly adheres unfixed toner onto a recording sheet includes a first cleaning unit for cleaning up toner adhering to a surface of a heating roller by using a belt-shaped cleaning member, and a second cleaning unit for cleaning up toner adhering to a surface of a pressurizing roller by using a roller-shaped member, wherein oil for promoting releasability is not supplied from the first cleaning unit whose cleaning member is an oilless member to the heating roller, and the oil is supplied only from the roller-shaped member of the second cleaning unit to the pressurizing roller.Type: GrantFiled: November 29, 2006Date of Patent: January 27, 2009Assignee: Sharp Kabushiki KaishaInventors: Tatsuya Shinkawa, Kimihide Tsukamoto, Takashi Yamanaka, Kan Mukai, Yasuhiro Takai
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Patent number: 7362994Abstract: A release agent application apparatus includes a liquid-permeable member, a first release agent metering member abutting the liquid-permeable member, and a pump operatively connected to the liquid-permeable member to pump the release agent therethrough.Type: GrantFiled: July 20, 2005Date of Patent: April 22, 2008Assignee: Xerox CorporationInventors: Martin Franklin Zess, Mark Steven Amico
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Patent number: 7263322Abstract: A smart and virgin contact fuser service assembly is disclosed for servicing a toner fuser assembly and includes (a) a cleaning device including a cleaning member having virgin cleaning portions on a cleaning surface, the virgin cleaning portions being feedable in a single pass into cleaning contact with a fuser first surface of a fuser member being cleaned; (b) an oiling device including an oiling member having virgin oiling portions on an oiling surface, the virgin oiling portions being feedable in a single pass into oiling contact with a second surface of a fuser member being oiled; and (c) a controller connected to the cleaning device and to the oiling device for selectably and controllably feeding the virgin cleaning portions and the oiling portions in response to a measurable condition of the surface of the fuser roll.Type: GrantFiled: September 30, 2005Date of Patent: August 28, 2007Assignee: Xerox CorporationInventors: Jason Pino, Michael P. Leaty, Kenneth R. Rasch
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Patent number: 7233764Abstract: A fixing device includes: a fixing belt member configured to be endless and rotatable; driving force transmission members that are disposed on respective ends of the fixing belt member, and transmits a rotational driving force to the fixing belt member; and a pressing member that is disposed to push an outer surface of the fixing belt member and forms a fixing nip part between the pressing member and the fixing belt member, wherein each of the driving force transmission members is fixed to the fixing belt member over an entire peripheral area of the corresponding end of the fixing belt member.Type: GrantFiled: August 26, 2005Date of Patent: June 19, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Yasutaka Naito, Hideaki Ohhara, Yasuhiro Uehara
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Patent number: 7215915Abstract: The invention relates to application of a surface treatment to a fuser, typically in a print process. According to various aspects of the invention, methods and apparatus are provided for applying surface treatment to a fuser comprising varying a width of surface treatment application to the fuser.Type: GrantFiled: December 28, 2004Date of Patent: May 8, 2007Assignee: Eastman Kodak CompanyInventors: Michael K. Baskin, Richard C. Baughman, Thomas J. Foster, Borden H. Mills, III, Terry N. Morganti
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Patent number: 7196910Abstract: An apparatus for routing and mapping a wiring system includes a wire routing system adapted to facilitate the routing of wires about a structure and a wire labeling system that permits labeling of each wire routed utilizing the wire routing system. The wire routing system includes a 2, 3, 4 module, a standard module, and a master module adapted to receive a connection from a communication service provider and output signals received from the communication service provider to any one of or all of the 2, 3, 4 module, the standard module, and end user devices. The apparatus for routing and mapping a wiring system further includes a wire management panel, whereby the wire labeling system attaches to the wire management panel and includes and a room label section, a wall label section, a box number label section, and a plate identifier label section.Type: GrantFiled: February 17, 2004Date of Patent: March 27, 2007Inventor: Mike L. Massey
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Patent number: 7187897Abstract: An improvement in a Release Agent Management system that alleviates the buildup of dirt, toner and paper debris on a wick in the system includes a metering roll, a supply of release agent material into which the wick is positioned and a pair of metering blades positioned on opposite sides of the metering roll before and after a nip formed between the metering roll and a donor roll. A first metering blade meters release agent material onto the metering roll and a second blade scrapes the surface of the metering roll to remove contaminants before the surface of the metering roll reaches the supply of release agent material in order to prevent contaminants from plugging the wick and thereby reduce the effectiveness of the wick.Type: GrantFiled: February 25, 2005Date of Patent: March 6, 2007Assignee: Xerox CorporationInventors: Martin F. Zess, Mark S. Amico
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Patent number: 7120380Abstract: An electrostatographic reproduction apparatus includes: a primary imaging member for producing an electrostatic latent image on a receiver, a development station for applying toner particles to the latent image to form a developed toner image on the receiver, a fuser assembly for fixing the developed toner image to form a fused toner image on the receiver, and a transport member for transporting the receiver to or from the fuser assembly. The transport member includes a substrate and an oil-absorbing layer that contains inorganic particles dispersed in an organic binder and is capable of absorbing release oil applied to the receiver bearing the fused toner image.Type: GrantFiled: October 14, 2004Date of Patent: October 10, 2006Assignee: Eastman Kodak CompanyInventors: Wayne T. Ferrar, Jeffrey R. Murray, Larry H. Judkins, Cumar Sreekumar, David M. Rakov, Lixin Chu, Douglas E. Garman
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Patent number: 7068959Abstract: Preventing the imaging forming process of an electrostatographic reproduction apparatus having a plurality of imaging modules in tandem relative to a receiver transport belt moveable along a transport path from becoming contaminated with fuser release oil. A substantially uniform layer of the pigmented marking particles from the development subsystem of the image forming process is deposited onto the photoconductive member of the image forming process during any non-imaging cycles of the process, including cycle down, non-imaging skip frames, or recovery from a receiver jam. The substantially uniform layer of pigmented marking particles acts as a barrier to block fuser release oil from the photoconductive member and as a vehicle to carry away contaminating fuser release oil.Type: GrantFiled: September 20, 2004Date of Patent: June 27, 2006Assignee: Eastman Kodak CompanyInventors: Richard G. Allen, Thomas N. Tombs, David M. Rakov
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Patent number: 6950619Abstract: An image forming apparatus includes a transferring-and-feeding unit (103) including a transfer belt (110). The transferring-and-feeding unit (103) is supported by a support frame (115) swingable in the direction away from image forming portions (100) including photosensitive bodies (107). The fixing unit (104) includes release members (121) that bring a heat roller (117) and the pressure roller (118) to stop pressing the recording medium. As the support frame (115) swings, the transfer belt (110) separates from the photosensitive bodies (107), and the heat roller (117) and the pressure roller (118) stop pressing the recording medium, with the result that the recording medium can easily removed from the image forming apparatus.Type: GrantFiled: May 13, 2004Date of Patent: September 27, 2005Assignee: Oki Data CorporationInventor: Takahiro Sunohara
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Patent number: 6875164Abstract: A toner release agent delivery system for a printing device utilizes a roller which has a plurality of layers of a non-woven textile web. The textile web is comprised of substantially all sub-denier fibers. The release agent delivery system with predominately sub-denier fibers has a very high release agent retention capability with a very low leak rate.Type: GrantFiled: October 20, 2003Date of Patent: April 5, 2005Assignee: BMP America, Inc.Inventors: Alan Lebold, Peter A. Milicia, Patrick M. Whitehead, Carl E. Doell
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Patent number: 6792236Abstract: A recording medium having a toner image formed thereon is moved to pass through a press contact portion between an endless belt being heated and an pressure roller pressed against the endless belt. When passing through the press contact portion, the toner image is fused and permanently affixed onto the recording medium. An oil application width O of an oil application roller is shorter than belt width B of the endless belt, and a maximum passing width P of a recording medium that may be supplied for the image formation, but is longer than a maximum image-forming width I within which an image may be formed on the recording medium.Type: GrantFiled: August 8, 2002Date of Patent: September 14, 2004Assignee: Seiko Epson CorporationInventors: Kaneo Yoda, Kazutoshi Fujisawa, Naoyuki Okumura, Tahei Ishiwatari, Hiroshi Tanaka, Kenjiro Yoshioka
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Patent number: 6782230Abstract: In a fixing belt having at least a release layer and a metal layer formed of electroformed nickel, the electroformed nickel has, in its crystal texture, crystallites having an average size of 0.05 &mgr;m or more and 0.2 &mgr;m or less. This fixing belt has high durability, and an image heat fixing assembly using this fixing belt has high durability and high reliability and realizes low-energy heating by utilizing a heating element with a small heat capacity.Type: GrantFiled: June 10, 2003Date of Patent: August 24, 2004Assignee: Canon Kabushiki KaishaInventors: Zhou Yaomin, Kazuo Kishino, Hideyuki Yano, Masahiro Suzuki, Koji Sasaki
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Patent number: 6718155Abstract: An object of the present invention is to provide a fixing apparatus that has a fixing rotating member for holding and conveying a recording material supporting an unfixed image to perform fixation, driving device for driving the fixing rotating member, a cleaning rotating member for cleaning the fixing rotating member, and contact/separation device for bringing the cleaning rotating member into contact with and away from the fixing rotating member, wherein the driving device drives the fixing rotating member at a predetermined fixing speed during fixation and at a cleaning speed lower than the fixing speed at the time of cleaning by the cleaning rotating member.Type: GrantFiled: February 8, 2002Date of Patent: April 6, 2004Assignee: Canon Kabushiki KaishaInventors: Keigo Kaji, Kenji Nagata
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Publication number: 20030235445Abstract: This fixing apparatus includes a heating member, a pressure member which sandwiches and feeds a recording sheet in cooperation with the heating member, a first cleaning unit and a second cleaning unit. The first cleaning unit moves the first cleaning member while pressing the first cleaning member against a surface of the heating member. The second cleaning unit moves a second cleaning member, which has a releasing agent, while pressing the second cleaning member against a surface of the heating member.Type: ApplicationFiled: June 19, 2002Publication date: December 25, 2003Applicant: Toshiba Tec Kabushiki KaishaInventor: Hirofumi Matsunobu