Web Or Belt Patents (Class 399/288)
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Patent number: 11216221Abstract: In an example, a method for controlling termination of a print procedure subsequent to a node reset within print apparatus including a plurality of nodes includes identifying the node at which the reset occurred, and controlling operation within the print apparatus by way of a selected node. The selected node is different from the identified node and selected responsive to the identification of the identified node for operation of a component of the print apparatus as part of a termination procedure.Type: GrantFiled: April 27, 2017Date of Patent: January 4, 2022Assignee: HP Indigo B.V.Inventors: Vitaly Portnoy, Michel Assenheimer, Yoav Nachmias, Miriel Cohen
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Patent number: 10837224Abstract: A conveyor belt for use in applying sealant to an elongated spacer frame and a method of use. The conveyor belt comprising a reversible belt rotatably attached to first and second pulleys. The reversible belt having a first perimeter length. The reversible belt is removably attached to the first and second pulleys. A first side and a second side of the replacement belt include first and second adhesive resistant materials. The first and second adhesive resistant materials are separated by an elastic support layer, wherein the first perimeter length is shorter than a second perimeter length measured about the rotation path of the first and second pulleys. The elastic support layer applies a force to first and second pulleys such that the reversible belt does not slip relative to the first and second pulleys.Type: GrantFiled: January 22, 2019Date of Patent: November 17, 2020Assignee: GED Integrated Solutions, Inc.Inventor: William Briese
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Patent number: 10114317Abstract: In order to prevent interference between a primary transfer bias voltage and a secondary transfer bias voltage, and to prevent occurrence of an image defect due to interference between these bias voltages, an image forming apparatus includes a plurality of primary transfer rollers, an intermediate transfer belt, a drive roller, a secondary transfer roller, and a rectifier roller. A primary transfer bias voltage of a polarity opposite to the polarity of toner is applied to a primary transfer bias applying unit. A secondary transfer bias voltage of a same polarity as the polarity of toner is applied to the drive roller. The rectifier roller is disposed between a most-downstream primary transfer roller and the drive roller. A bias voltage of the same polarity as the polarity of the primary transfer bias voltage or the polarity of the secondary transfer bias voltage is applied to the rectifier roller.Type: GrantFiled: January 24, 2018Date of Patent: October 30, 2018Assignee: KYOCERA DOCUMENT SOLUTIONS INC.Inventors: Ayaka Kurokawa, Teppei Shibuya, Satoru Nakamura
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Patent number: 8620167Abstract: An image forming device includes a light-receiving element that receives a light having passed through a cartridge. An image forming unit has a first mode for forming images while rotating an agitator at a first speed and a second mode for forming images while rotating the agitator at a second speed that is lower than the first speed. If a value regarding image forming amount counted while the image forming unit is in the second mode is determined to be greater than a predetermined value, the image forming unit changes a rotation speed of the agitator from the second speed to the first speed, and it is determined whether the cartridge should be replaced based on a time ratio, which is a ratio of time duration, in which the light-receiving element receives the detection light within a predetermined duration, to the predetermined time duration.Type: GrantFiled: March 8, 2011Date of Patent: December 31, 2013Assignee: Brother Kogyo Kabushiki KaishaInventor: Satoru Suzuki
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Patent number: 8508804Abstract: When at least one of first image data and second image data is captured, according to a moving speed of an object while an image sensor is capturing an image, exposure time for capturing the image is controlled to decrease a difference between object blur widths in a direction in which the object moves.Type: GrantFiled: October 25, 2010Date of Patent: August 13, 2013Assignee: Canon Kabushiki KaishaInventor: Taichi Watanabe
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Publication number: 20120269528Abstract: A rotational speed of an image bearing member on a downstream side is controlled so as to reduce a detection time difference between a leading end section of first electrostatic latent image indexes of an image bearing member and a leading end section of second electrostatic latent image indexes of a transfer medium in an area of a leading end margin preceding an effective image area.Type: ApplicationFiled: March 23, 2012Publication date: October 25, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Yoshikuni Ito, Yoshihiro Shigemura, Ichiro Okumura, Seiji Hara
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Patent number: 8208841Abstract: A developing device develops an electrostatic latent image on an image bearing body, and includes first, second and third rollers, a developing belt and a developer supply member. The developing belt, which is entrained about the first, second and third rollers, is opposed to the image bearing body between the first and second rollers, and is in contact with the developer supply member between the first and third rollers. The developer supply member supplies a developer to the developing belt.Type: GrantFiled: May 27, 2010Date of Patent: June 26, 2012Assignee: Oki Data CorporationInventor: Tetsuya Uehashi
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Patent number: 8200132Abstract: An image forming apparatus includes an image supporting member; a developing belt for supporting and transporting developer to develop a static latent image formed on the image supporting member; a developer supply member disposed to abut against the developing belt to form a specific nip portion for supplying the developer to the developing belt; a first voltage applying member for applying a first voltage to the developing belt at a first position; a second voltage applying member for applying a second voltage to the developing belt at a second position; and a third voltage applying member for applying a third voltage to the developer supply member. It is configured such that the developer supply member abuts against the developing belt between the first position and the second position.Type: GrantFiled: January 30, 2009Date of Patent: June 12, 2012Assignee: Oki Data CorporationInventor: Katsuyuki Ito
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Patent number: 8126365Abstract: A belt rotating apparatus according to an exemplary embodiment of the invention includes a circular belt; plural rollers about which the belt is entrained, the plural rollers including a drive roller which rotates the belt and an inclination change roller which can change an inclination thereof; a belt side edge sensor which measures a position of a belt side edge in a belt width direction of the belt; and a cutter which can trim the belt side edge.Type: GrantFiled: November 7, 2008Date of Patent: February 28, 2012Assignee: Fuji Xerox Co., Ltd.Inventors: Toru Nishida, Susumu Kibayashi
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Publication number: 20120027472Abstract: An image-forming device includes a main body; a developing unit; a transferring unit; and a tray. The developing unit has a developer-accommodating section that accommodates developer and a photosensitive member on which an electrostatic latent image is formed. The developing unit further has a developer-carrying member to develop the electrostatic latent image. The tray enables the developing unit to move between a contact position and a separate position.Type: ApplicationFiled: October 7, 2011Publication date: February 2, 2012Applicant: BROTHER KOYGO KABUSHIKI KAISHAInventors: Naoya KAMIMURA, Shougo SATO
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Patent number: 8101096Abstract: The present invention provides a conductive rubber member which exhibits low electrical resistance, and has properties that are less affected by environmental factors, and excellent staining resistance. The conductive rubber member of the present invention has a base rubber predominantly containing epichlorohydrin rubber, and a conductive elastic layer which is formed, through hardening and molding of a rubber composition, wherein the rubber composition contains, as vulcanizing agents, a thiourea-type vulcanizing agent and a thiuram-type vulcanizing agent, and contains no elemental sulfur.Type: GrantFiled: June 1, 2009Date of Patent: January 24, 2012Assignee: Synztec Co., Ltd.Inventor: Junya Hoshi
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Patent number: 8068773Abstract: A development device includes a developer carrier and a developer supply belt. The developer carrier, disposed in contact with an image carrier carrying an electrostatic latent image, carries developer to be charged with a prescribed polarity and develops the electrostatic latent image by application of development voltage. The developer supply belt includes a first roller, a second roller, and a belt. The belt is tightly stretched by the first roller and the second roller, and is disposed in contact with the developer carrier from a contact beginning portion to a contact finishing portion. A potential difference between the development voltage and the voltage of the contact finishing portion is arranged to be zero (0) V or above and 600 V or below.Type: GrantFiled: November 26, 2008Date of Patent: November 29, 2011Assignee: Oki Data CorporationInventor: Tetsuya Uehashi
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Publication number: 20100329749Abstract: A developing device develops an electrostatic latent image on an image bearing body, and includes first, second and third rollers, a developing belt and a developer supply member. The developing belt, which is entrained about the first, second and third rollers, is opposed to the image bearing body between the first and second rollers, and is in contact with the developer supply member between the first and third rollers. The developer supply member supplies a developer to the developing belt.Type: ApplicationFiled: May 27, 2010Publication date: December 30, 2010Applicant: OKI DATA CORPORATIONInventor: Tetsuya Uehashi
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Patent number: 7853181Abstract: A developing unit for visualizing an electrostatic latent image formed on a photoreceptor drum with a toner, includes: a hopper for storing a developer; a developing roller for supplying the toner to a photoreceptor drum on which an electrostatic latent image is formed; and an agitating and conveying portion. In the developing unit, the agitating and conveying portion includes first and second agitating and conveying belts, each having toner agitating blades for agitating and conveying the toner. The first and second agitating and conveying belts are rotatably arranged in the hopper with their rotational axes set approximately vertically so as to rotate the toner agitating blades approximately horizontally.Type: GrantFiled: December 10, 2007Date of Patent: December 14, 2010Assignee: Sharp Kabushiki KaishaInventors: Tsutomu Sugimoto, Osamu Wakuda, Yuichi Kazaki
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Patent number: 7801470Abstract: A developing apparatus, comprises an endless belt shaped donor member; a developer supporting member to carry developer including toner and magnetic carrier and to form a toner layer on the donor member; a first supporting member arranged in the inside of the donor member with a predetermined gap against the developer supporting member and to strain the donor member; a second supporting member arranged in the inside of the donor member with a predetermined gap against the developer supporting member and to strain the donor member; a toner supply bias applying section to apply onto the first supporting member a toner supply bias for supplying toner from the developer supporting member to the donor member; and a toner recovery bias applying section to apply onto the second supporting member a toner recovery bias for recovering toner from the donor member to the developer supporting member.Type: GrantFiled: March 11, 2008Date of Patent: September 21, 2010Assignee: Konica Minolta Business Technologies, Inc.Inventors: Natsuko Minegishi, Seiko Itagaki, Hiroshi Akita
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Publication number: 20100196060Abstract: The invention relates to a developer unit for an electrophotographic printing device for printing on glass or ceramic material having a toner supply and a magnetic roll (22) for applying toner to a photoconductor (10), which is connected to a substrate to be printed, directly or with the interposition of a transfer device (20). According to the invention, a conditioning medium (24) for transferring the toner acts between the magnetic roll (22) and the photoconductor (10).Type: ApplicationFiled: April 10, 2008Publication date: August 5, 2010Applicant: AGC GLASS EUROPEInventors: Dieter Jung, Andreas Schoenberger, Christian Hornickel
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Patent number: 7711297Abstract: The invention provides a belt including a belt base having elasticity and a projection member having elasticity which is provided along at least one edge of the belt base so as to project from the belt base, and an adhesive layer which bonds the belt base and the projection member, wherein the ten-point average roughness Rz in the region of the belt base to be bonded with the projection member is about 4 ?m or more and the ten-point average roughness Rz in the region of the projection member to be bonded with the belt base is about 6 ?m or more.Type: GrantFiled: November 1, 2006Date of Patent: May 4, 2010Assignee: Fuji Xerox Co., Ltd.Inventors: Tetsuya Kawatani, Yukio Hara
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Patent number: 7638194Abstract: A developer carrying member is disclosed which can prevent a toner from being excessively charged in a developing assembly while keeping the charge quantity of the toner at a somewhat higher level, and seldomly causes toner melt adhesion to the developer carrying member.Type: GrantFiled: June 24, 2005Date of Patent: December 29, 2009Assignee: Canon Kabushiki KaishaInventors: Tatsuki Fukui, Tetsuya Yano, Takashi Kenmoku, Chieko Mihara, Ako Kusakari, Norikazu Fujimoto
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Publication number: 20090238612Abstract: There is provided an image formation device comprising an electrostatic latent image holding body having an latent image formation surface on which an electrostatic latent image is formed, a developer supply unit to supply developer to the electrostatic latent image holding body to form, on the latent image formation surface, a developer image corresponding to the electrostatic latent image; a developer transfer unit located to face the electrostatic latent image holding body to transfer the developer image to a developer image holding surface; and a contacting member to contact the latent image formation surface at a stage which is after formation of the developer image and before transfer of the developer image to the developer image holding surface.Type: ApplicationFiled: March 19, 2009Publication date: September 24, 2009Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tomoaki HAZEYAMA, Kenjiro NISHIWAKI
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Publication number: 20090202278Abstract: An image forming apparatus includes an image supporting member; a developing belt for supporting and transporting developer to develop a static latent image formed on the image supporting member; a developer supply member disposed to abut against the developing belt to form a specific nip portion for supplying the developer to the developing belt; a first voltage applying member for applying a first voltage to the developing belt at a first position; a second voltage applying member for applying a second voltage to the developing belt at a second position; and a third voltage applying member for applying a third voltage to the developer supply member. It is configured such that the developer supply member abuts against the developing belt between the first position and the second position.Type: ApplicationFiled: January 30, 2009Publication date: August 13, 2009Inventor: Katsuyuki Ito
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Patent number: 7522868Abstract: A developer unit having a toner reservoir and a toner application device. The toner application device applies toner to a developer and the developer can be brought into a planar contact with an OPC (photo conductor drum). In order to improve the transfer of toner in the contact area between the OPC and the developer, the developer has a developer strip that is placed, in the contact area, in some areas of the surface of the OPC.Type: GrantFiled: November 17, 2004Date of Patent: April 21, 2009Assignee: Schott AGInventors: Bernd Schultheis, Holger Köbrich, Dieter Jung
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Publication number: 20080112734Abstract: A belt member faces a plurality of carrying bodies that respectively carry toner images or developers. A plurality of facing members respectively faces the carrying bodies via the belt member. A detaching unit brings at least one of the facing members to face a corresponding carrying body and detaches other facing members from other carrying bodies. A contacting member contacts the belt member to detach the belt member from the other carrying bodies when the detaching unit detaches the other facing members from the other carrying bodies.Type: ApplicationFiled: November 5, 2007Publication date: May 15, 2008Inventors: Masaharu FURUYA, Kazuchika SAEKI, Toshitaka YAMAGUCHI, Takahiro NAKAYAMA, Takuya SEKINE
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Publication number: 20080063440Abstract: An image forming method and apparatus to form visible images on a printing medium. The image forming apparatus includes a photosensitive medium on which electrostatic latent images are formed, and a toner-conveying member configured to follow an endless loop apart from the photosensitive medium to convey toner to the photosensitive medium. The image forming apparatus may include a non-contact developing unit.Type: ApplicationFiled: January 26, 2007Publication date: March 13, 2008Applicant: Samsung Electronics Co., Ltd.Inventor: Ji-won MOON
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Patent number: 7123866Abstract: An apparatus in which an electrostatic latent image is developed with toner. A donor belt is adapted to provide toner to develop the image. The donor belt includes a lower layer and a thermoplastic layer. The lower layer can include materials to regulate conductive properties. The thermoplastic layer joins the ends of the donor belt together using an overlapping butt seam. A layer of electrodes is spaced across the width of the donor belt.Type: GrantFiled: December 3, 2004Date of Patent: October 17, 2006Assignee: Xerox CorporationInventor: Joseph A. Swift
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Patent number: 7076194Abstract: A developing device includes an endless belt stretched around a plurality of support members, a portion of a peripheral surface of the endless belt contacting a portion of a surface of an image carrying member at a contact region, the endless belt being rotated by a driving force transmitted from a driving device at a driving transmission position, and a layer regulating member pressed against a portion of the endless belt at a pressure contact region positioned upstream, with respect to the endless belt's rotation direction, from the contact region. Further provided is a load device applying, to at least a portion of the endless belt between the pressure contact region and the contact region, which is positioned upstream, with respect to the endless belt's rotation direction, from the driving transmission position, a load acting in a direction opposite to the rotation direction of the endless belt.Type: GrantFiled: March 25, 2005Date of Patent: July 11, 2006Assignee: Sharp Kabushiki KaishaInventor: Kenji Asakura
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Publication number: 20030175052Abstract: A developing device comprises: a toner carrying member (15) for carrying toner T towards a photosensitive drum, using a traveling wave electric field; a belt member (16) which is provided so as to cover the surface of the toner carrying member (15), the surface facing the photosensitive drum (2); a belt drive roller (18) which is in touch with the belt member (16) so as to rotate the belt member (16) around the toner carrying member (15); and a drive assistance roller (19) for sandwiching the belt member (16) with the belt drive roller (18). With this arrangement, it is possible to provide a developing device which is silent, small in size, and capable of reducing costs, and an image forming device including the developing device.Type: ApplicationFiled: March 7, 2003Publication date: September 18, 2003Inventors: Katsumi Adachi, Masamitsu Sakuma, Taisuke Kamimura, Kiyoshi Toizumi, Toshimitsu Gotoh
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Publication number: 20030026629Abstract: A developing device including a housing, a developer bearing member rotatably provided in the opening portion of the housing, a developer containing chamber, and a developer supplying and removing member being in contact with the developer bearing member, and having the function of supplying a developer in the developer containing chamber to the developer bearing member and the function of removing the developer from the developer bearing member, wherein the developer bearing member is disposed above the developer containing chamber, and the developer supplying and removing member has the function of upwardly carrying the developer in the developer containing chamber.Type: ApplicationFiled: July 30, 2002Publication date: February 6, 2003Applicant: Canon Kabushiki KaishaInventors: Takeshi Kawamura, Tetsuya Sano, Ken Nakagawa, Hikaru Osada, Shuji Moriya, Kenji Kanari
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Patent number: 6324366Abstract: A drive roller is rotated and a high voltage periodically alternating between plus and minus based on the potential of a conductive portion of the drive roller 2 is applied by a high voltage power source 4 to an electric charger, so that the surface of the drive roller 2 is charged plus and minus alternately. Since the drive roller 2 is charged, a sleeve 1 is absorbed to and held by the drive roller 2 so as to be rotated and fed together with the drive roller. Moreover, the sleeve 1 is separated from the drive roller 2 by a separator so as to obtain a sag. When the drive roller rotates further, the sleeve 1 is again absorbed to and held by the drive roller 2 charged periodically plus and minus, so as to be rotated together with the drive roller. Thus, the present invention eliminates scratches which may be caused by friction on a developing roller or on a photosensitive body surface and also eliminates contamination with oil.Type: GrantFiled: May 11, 2000Date of Patent: November 27, 2001Assignee: NEC CorporationInventors: Yasuhiro Funayama, Tsutomu Uezono
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Patent number: 6205313Abstract: Toner charging and/or delivery systems and methods charge and deliver charged toner particles to an image development zone without using carrier particles. Toner particles for imaging process are charged by filling the grooves or cups of a gravure member with uncharged toner particles and charging the toner particles in the grooves or cups using a corona discharge device. The charged toner particles are then transported directly or indirectly to an imaged photoreceptor, where the charged toner particles are used to develop a latent electrostatic image on the imaged photoreceptor. The developed image is then transferred to a copy sheet and permanently fused to the copy sheet.Type: GrantFiled: November 23, 1999Date of Patent: March 20, 2001Assignee: Xerox CorporationInventor: Lloyd F. Bean
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Patent number: 5752139Abstract: A dual-component magnetic brush developing device using a dual-component developer containing magnetic carriers and toner electrically attracted to the magnetic carriers.Type: GrantFiled: November 25, 1996Date of Patent: May 12, 1998Assignee: Fuji Xerox Co., Ltd.Inventors: Takeshi Sumikawa, Isao Ito