Having Holder Patents (Class 399/351)
  • Patent number: 10915056
    Abstract: A drum cartridge includes a blade, a sheet metal member, a support member, and a fastening member. One of the sheet metal member and the support member includes a first center hole which is formed at a center portion, and a fastening member receiving portion formed at a first end side and configured to fasten the fastening member. The other of the sheet metal member and the support member includes a second center hole which is formed at the center portion, and a through hole which is formed at the first end side and through which the fastening member is passed. The first center hole and the second center hole are arranged such that centers thereof are overlapped. The through hole is configured to be larger than the fastening member receiving portion in a swinging direction with the first and second center holes serving as the center of swing.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: February 9, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shotaro Ishihara, Hiroshi Koyama, Atsushi Endo, Tomonori Kitan
  • Patent number: 10488806
    Abstract: A cleaning blade that removes a substance adhering to a surface of a rotating image carrier, includes: a contact member having elasticity for removing the substance; a blade spring member that is provided with the contact member on a first end of the blade spring member and presses the contact member onto the surface of the image carrier; and a support member that fixes and supports a second end of the blade spring member, wherein the blade spring member protrudes from a first edge of the support member by a protrusion length of L (mm), and when a distance from the first edge to a fixed position at which the blade spring member is fixed on the support member is d (mm), the length L is equal to or longer than 10 mm and equal to or shorter than 20 mm and 1/10?d/L?? (1) is satisfied.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: November 26, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventor: Noritoshi Hagimoto
  • Patent number: 10310417
    Abstract: In example implementations, an apparatus includes a planar surface, a curved mounting surface and a wiper blade. The curved mounting surface may be coupled adjacent to the planar surface. The wiper blade may be clamped to the planar surface. A bottom of the wiper blade can rest on the curved mounting surface such that a free length of the wiper blade is different at a plurality of points along a width of the wiper blade.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: June 4, 2019
    Assignee: HP Indigo B.V.
    Inventors: Eric G. Nelson, Lavi Cohen
  • Patent number: 10048646
    Abstract: A structure includes a rotatable rotating member, a blade, a support member, and a frame body. The blade extends in an axial direction of the rotating member and is in contact with or disposed close to a surface of the rotating member. The support member supports the blade such that one end side of the blade projects toward the rotating member in a lateral direction that intersects the axial direction. The frame body is formed by insert molding in which resin is injected while the support member is secured to a mold. The frame body clamps part of the support member so as to support the support member.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: August 14, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akira Suzuki, Hiroomi Matsuzaki, Kazunori Suzuki, Toshiteru Yamasaki, Shigeo Miyabe, Takahito Ueno, Shogo Satomura, Masatomi Yoshida, Nobuharu Hoshi
  • Patent number: 9678468
    Abstract: There is provided a cleaning apparatus including a cleaning member configured to collect developer on an image bearing member, and a storage chamber configured to store the developer, wherein cross-sectional areas of a lengthwise center and an end portion of the storage chamber in a lengthwise direction of the storage chamber are different, the cross sections being orthogonal to the lengthwise direction.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: June 13, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuta Isobe, Takayuki Namiki, Nobuo Oshima, Masanori Tanaka, Naoki Hayashi, Shigemi Kamoshida
  • Patent number: 9383690
    Abstract: A transfer device includes an endless rotating member that rotates; a first transfer section that transfers a toner image, which is formed by a first forming unit by using a flat toner containing a flat metallic pigment, onto an outer periphery of the rotating member; a second transfer section that transfers a toner image, which is formed by a second forming unit by using a non-flat toner, onto the outer periphery; a ground-connected section that is disposed downstream of the first transfer section in a rotating direction of the rotating member and that is connected to ground by being in contact with an inner periphery of the rotating member; and a power supply that applies an electric current to the first transfer section, which is lower than an electric current applied to the second transfer section, when the first transfer section transfers the toner image onto the outer periphery.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: July 5, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Yoshiyuki Tominaga
  • Patent number: 9298138
    Abstract: A recording apparatus includes a transfer belt which transfers a recording medium, a recording section which performs recording on the recording medium, and a wiper blade which is able to abut with the transfer belt, wherein the wiper blade is supported in a state of being clamped by clamping members. Extension lengths of the clamping members, which are from an clamping region in the direction toward the transfer belt, are different depending on the clamping member. The extension length of the clamping member, which is on the downstream side in the movement direction of the transfer belt to transfer the recording medium during recording, is longer.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: March 29, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Hirotaka Ishizuka
  • Patent number: 9201319
    Abstract: An image bearing member includes a substrate, and a photosensitive layer overlying the substrate, wherein an uppermost surface layer of the image bearing member has a hydrocarbon compound represented by the following Chemical Formula 1; and a three-dimensionally cross-linked polymer formed by polymerization reaction of a charge transport compound having three or more [tetrahydro-2H-pyran-2-yl)oxy]methyl groups linked with aromatic rings, wherein, in the polymerization reaction, part of the three or more [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups is severed and detached from the charge transport compound, Ph1-Q1-Ph2-Q2-Ph3??Chemical Formula 1 where Q1 and Q2 independently represent methylene groups or ethylene groups, Ph1 and Ph3 independently represent phenyl groups with which one or two methyl groups are bonded, and Ph2 represents a phenylene group or a phenylene group having one methyl group.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: December 1, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazukiyo Nagai, Yuuji Tanaka, Tetsuro Suzuki, Yuusuke Koizuka
  • Patent number: 9110430
    Abstract: A cleaning device for use with an image forming apparatus includes: a frame; and a cleaning member for removing a developer from an image bearing member (drum). The cleaning member includes: a blade portion contacted to the drum; and a flexible supporting member, the supporting member including one end portion where the blade portion is provided, another end portion including a portion-to-be-fixed, and a bent portion between the one end portion and the another end portion and a contact portion. When a distance between the portion-to-be-fixed and the drum in a longitudinal central side of the portion-to-be-fixed is D1, and a distance between the portion-to-be-fixed and the image bearing member in each of longitudinal end sides of the portion-to-be-fixed is D2, the distances D1 and D2 satisfy: D1?D2.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: August 18, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takashi Kase
  • Patent number: 9042768
    Abstract: A cleaning member includes a ridgeline part provided at one end of the cleaning member in a lateral direction of the cleaning member, the ridgeline part including a first ridgeline that extends in an axial direction of a member to be cleaned that rotates and second ridgelines provided at respective ends of the first ridgeline, each second ridgeline extending in a direction away from the member to be cleaned. The ridgeline part is pressed against an outer peripheral surface of the member to be cleaned so that the ridgeline part and a corner portion on which the ridgeline part is formed press into the outer peripheral surface of the member to be cleaned and deform the member to be cleaned.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: May 26, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Hiroshi No
  • Patent number: 9037028
    Abstract: Representative configurations of a cleaning apparatus, a process cartridge and an image forming apparatus according to the present invention includes: a cleaning blade which abuts on a photosensitive drum which bears a toner image, and which removes toner which remains on the photosensitive drum; compression springs which are compressed to pressurize the cleaning blade against the photosensitive drum; and spring attaching portions which regulate phases of compression springs such that positions of the compression springs in a circumferential direction are at predetermined phase positions when the compression springs are attached.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: May 19, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yuhei Takei
  • Patent number: 9031490
    Abstract: As a typical configuration of a cleaning device and an image forming apparatus according to the invention, the cleaning device includes a cleaning blade which cleans an image bearing member, a plurality of compression coil springs which apply a force from the cleaning blade to the image bearing member, and a plurality of bosses provided to fix the plurality of compression coil springs to a frame. The particular boss that attaches to one of the compression coil springs is selectable from the plurality of bosses, which are disposed at different positions. As a result, the abutting pressure of the cleaning blade to the image bearing member is adjustable by changing the boss to which a particular compression spring is attached.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: May 12, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Motohiro Ogura
  • Patent number: 9026026
    Abstract: A cleaning blade to remove a residual toner present on a surface of an electrophotographic photoreceptor, a cleaning unit, an electrophotographic imaging apparatus, and an electrophotographic cartridge including the cleaning blade.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: May 5, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soon-cheol Jeong, Cha-young Bae
  • Patent number: 9014612
    Abstract: A representative configuration of a cleaning device and an image forming apparatus according to the present invention includes: a photosensitive drum which bears a toner image; a cleaning blade which abuts against the photosensitive drum and removes a toner remained in the photosensitive drum; a compression coil spring which is compressed to pressurize the cleaning blade against the photosensitive drum; and a positioning boss which is arranged to face the compression coil spring, with a predetermined gap being provided therebetween, allows a movement in a direction perpendicular to a compression direction of the compression coil spring, and regulates a movement of the compression coil spring such that the compression coil spring is not moved by more than a predetermined amount in the direction perpendicular to the compression direction of the compression coil spring.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: April 21, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takuya Matsumura
  • Patent number: 9002236
    Abstract: A cleaning device, which is detachably attached to a main body of an image forming apparatus, includes a fixing portion provided at a frame member, a cleaning member fixed to the fixing portion for removing a developer from an image bearing member, the cleaning member including a blade portion configured to contact the image bearing member and a flexible support member for supporting the blade portion, a container formed by the frame member and configured to contain the developer removed from the image bearing member, and a restricting member configured to engage with the support member and being capable of restricting the support member from being deformed.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: April 7, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masao Uyama
  • Patent number: 8995900
    Abstract: A cleaning member includes a blade portion contacted to a member-to-be-cleaned with respect to a direction counter to a movement direction of the member-to-be-cleaned, and a flexible supporting member. The supporting member includes one end portion where the blade portion is provided, another end portion including a portion-to-be-fixed for being fixed at the fixing portion, and a bent portion between the one end portion and the other end portion in a side remote from a surface of the member-to-be-cleaned toward an outside with respect to a line connecting the portion-to-be-fixed and a contact portion where the blade portion is contacted to the member-to-be-cleaned. The portion-to-be-fixed is provided downstream of the contact portion with respect to the movement direction of the member-to-be-cleaned. The blade portion is supported by the supporting member in contact to only the one end portion.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: March 31, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Shindo, Masao Uyama, Masaki Ojima
  • Patent number: 8942616
    Abstract: A cleaning member for removing a developer from a surface of a member to be cleaned is provided. The cleaning member includes a blade portion contactable to the member to be cleaned and a flexible supporting member for supporting the blade portion. The supporting member includes a blade supporting portion for supporting the blade portion, a portion to be fixed to a fixing portion, and a bent portion provided at a longitudinal end portion of the blade supporting portion.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: January 27, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Satoshi Sunahara
  • Patent number: 8938183
    Abstract: There is provided a doctor blade assembly and method for alignment in a toner hopper of a toner printer cartridge. The doctor blade assembly has a holder portion. The holder portion has a first mounting end and a second mounting end. The holder portion further has a pair of recessed openings formed in the first mounting end and the second mounting end, respectively. The holder portion further has a pair of alignment elements each having an alignment through hole and each configured to fit in and correspond to each respective recessed opening. The doctor blade assembly further has a blade portion attached to the holder portion. The doctor blade assembly further has a pair of fastener members each configured for insertion through the alignment through hole and through the recessed opening.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 20, 2015
    Assignee: Mitsubishi Kagaku Imaging Corp.
    Inventor: Kozo Ishio
  • Patent number: 8929795
    Abstract: A cleaning device for use with an image forming apparatus, includes: a frame including a fixing portion; a cleaning member, fixed at the fixing portion, for removing developer from an image bearing member (drum). The cleaning member includes: a blade portion contacted to the drum; and a flexible supporting member for supporting the blade portion, the supporting member including one end portion where the blade portion is provided, another end portion including a portion-to-be-fixed at the fixing portion, and a bent portion between the end portions; and an engaging portion provided on the frame. The engaging portion is engaged, such that the blade portion is not contacted to the drum, with a portion-to-be-engaged provided at the supporting member to position the cleaning member. The engaging portion is spaced from the portion-to-be-engaged in a state in which the blade portion is contacted to the drum.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: January 6, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Satoru Inami
  • Patent number: 8923744
    Abstract: A cleaning device includes: a cleaning rotating body 160; a scraping member 130; a toner restriction face 141; and a downstream side restriction portion 140. The cleaning rotating body 160 is arranged in sliding contact with the surface of the image carrying body 2. A front end portion 131 of the scraping member 130 is arranged in contact with or in proximity to a surface of the cleaning rotating body 160. The scraping member 130 is a plate-like member and includes a toner receiving face 133 to which the toner is carried from the front end portion 131. The toner restriction face 141 is arranged to be orthogonal to the toner receiving face 133. The downstream side restriction portion 140 restricts movement of the toner to a downstream side in a rotational direction of the cleaning rotating body 166.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: December 30, 2014
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Yoshimi Shimizu, Takahiko Murata, Ai Takagami
  • Patent number: 8886109
    Abstract: A cleaning unit including: frame abutment portions each including a first abutment portion and a second abutment portion; support portions each including a first support portion which abuts against the first abutment portion, and a second support portion which abuts against the second abutment portion so as to support a cleaning member in a pivotable manner about the frame abutment portions as a pivot axis; and an urging member configured to urge the cleaning member in a direction in which an elastic member is brought into contact with a photosensitive drum by pivoting the cleaning member.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: November 11, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuo Chadani, Akihiro Fujiwara, Susumu Nittani, Masato Tanabe, Hideki Kakuta, Keisuke Nomura
  • Patent number: 8879954
    Abstract: A cartridge detachably mountable to a main assembly of an image forming apparatus includes: a frame; a member-to-be-energized; a fixing member, having electroconductivity, for fixing the member-to-be-energized to the frame, wherein the fixing member is electrically connected with the member-to-be-energized; a recessed portion, provided on the frame, where a part of the fixing member enters; and a molded resin portion formed by injecting a melted electroconductive resin material into the recessed portion, wherein when the cartridge is mounted in the main assembly, the molded resin portion electrically connects the fixing member with an energizing portion provided in the main assembly.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: November 4, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Fumito Nonaka, Yuichi Fukui, Tachio Kawai, Shunsuke Uratani
  • Patent number: 8831468
    Abstract: An optical scanner includes a plurality of automatic cleaning units which automatically cleans dust-proof glasses. The automatic cleaning units include screw shafts threadedly coupled to holding units that hold cleaning members. When the holding members are moved by rotationally driving the screw shafts of the automatic cleaning units at the same time, the height of the cleaning member of at least one of the automatic cleaning units with respect to the dust-proof glasses becomes different from the height of the cleaning members of the remaining automatic cleaning units with respect to the dust-proof glasses.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: September 9, 2014
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Uohashi Yuki
  • Publication number: 20140241772
    Abstract: A cleaning device includes a cleaning member for removing a developer from a surface of a member to be cleaned and the cleaning member includes a blade portion, and a flexible plate-like supporting member configured to support the blade portion, the supporting member including one end portion, in which the blade portion is provided, the other end portion, which has a portion to be fixed to a frame member, a bent portion, which is positioned between the one end portion and a side plate portion projecting from a side end of the one end portion, and a sealing member, which is provided between the cleaning member and the frame member, configured to prevent the developer from leaking from a storage chamber and fixed to one of the side plate portion and the frame member.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 28, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yousuke Watanabe, Masao Uyama
  • Publication number: 20140241773
    Abstract: A cleaning member for removing a developer from a surface of a member to be cleaned includes a blade member configured to make contact with the member to be cleaned in a direction counter to a moving direction of the member to be cleaned, and a flexible plate-like supporting member configured to support the blade member, which includes one end with the blade member, the other end with a fixed portion fixed to a frame member, and a bent portion between the ends which is located outwardly away from the surface of the member to be cleaned relative to a segment connecting the fixed portion and a contact portion between the blade member and the member to be cleaned. The fixed portion arranged downstream of the moving direction of the member to be cleaned relative to the contact portion has a folded-back shape to nip part of the frame member.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 28, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Masataka Mochizuki
  • Patent number: 8805233
    Abstract: A cleaning device includes a developer removing member with one long-side edge thereof coming into contact with an image carrier, a supporting member supporting the developer removing member such that the developer removing member extends beyond the supporting member on a side thereof having the one long-side edge, a developer collecting member having an opening for collecting developer residues and configured such that the one long-side edge of the developer removing member is positioned in a short-side central portion of the opening and portions defining one long-side edge and two short-side edges of the opening face a combination of the supporting member and the developer removing member, a sealing member provided between the combination and the portions defining the one long-side edge and the two short-side edges of the opening, and an adhesion preventing member interposed between the sealing member and the developer removing member.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: August 12, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hiroaki Akamatsu
  • Patent number: 8798516
    Abstract: A cleaning device cleaning a moving surface of a cleaning target includes a laminate-structured blade member including multiple layers made of materials different in permanent set value, a holding member to hold a proximal end of the laminate-structured blade member, and a plurality of slits. An edge layer of the multiple layers is formed of a material higher in permanent set value than any other one of the materials of the multiple layers and includes a distal-end edge portion corresponding to a leading end ridgeline portion contacting the cleaning target. The plurality of slits are formed over an area of a surface of the edge layer ranging from the proximal end of the blade member where the holding member holds the blade member toward the distal-end edge portion and extend in a direction perpendicular to a moving direction of the surface of the cleaning target.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: August 5, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Keiji Okamoto, Kazuhiko Watanabe
  • Patent number: 8792802
    Abstract: A developing device is capable of preventing developing agent from leaking from a developing frame of a developer cartridge. The developer cartridge includes a developing agent carrying member, a layer thickness regulator, and a first seal positioned between the developing agent carrying member and the layer thickness regulator. The regulator includes a plate member provided with a projecting portion. The projecting portion has a laterally outer end portion positioned inward of laterally outer end portion of the first seal.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: July 29, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshinori Ito, Ryuya Yamazaki, Masahiro Ishii, Hirofumi Kuriki
  • Patent number: 8774697
    Abstract: Printers and cleaning systems are provided. A cleaning system has an actuator that moves the electrostatic imaging member in a second direction opposite the first direction and a frame positions a mounting within a first range of mounting distances from the electrostatic imaging member with the mounting holding a cleaning blade at a holding angle that causes a free length of the cleaning blade to extend along a first direction to position a cleaning end of the cleaning blade to engage the electrostatic imaging member for movement therewith. The electrostatic imaging member urges the cleaning end in the second direction to deflect the cleaning blade to extend along the second direction to position the cleaning end to wipe the electrostatic imaging member and the free length, the holding angle and the working angle cause the cleaning edge to wipe at a working angle between about 85 and 89 degrees.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: July 8, 2014
    Assignee: Eastman Kodak Company
    Inventors: Michael Thomas Dobbertin, Francisco Luiz Ziegelmuller, James Douglas Shifley
  • Patent number: 8750749
    Abstract: An image forming apparatus includes a rotatable member-to-be-cleaned having elasticity; a cleaning member, having elasticity, for removing a deposited matter deposited on the member-to-be-cleaned; and a supporting portion for supporting the cleaning member so that the cleaning member swings around a swing fulcrum. The swing fulcrum of the supporting portion is provided so that a force exerted from the member-to-be-cleaned onto the cleaning member with respect to a direction along a tangential line where the cleaning member and the member-to-be-cleaned contact each other during movement of the member-to-be-cleaned has a vector component in a direction in which the cleaning member is moved away from the member-to-be-cleaned.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: June 10, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akimichi Suzuki, Shinsuke Kobayashi, Kenji Takagi
  • Publication number: 20140153990
    Abstract: A cleaning device includes: a fixing portion provided on a frame; a cleaning member; and an accommodating portion. The cleaning member includes: a blade portion contacted to an image bearing member (drum); and a supporting member. The supporting member includes one end portion where the blade portion is provided, another end portion including a portion-to-be-fixed for being fixed at the fixing portion, and a bent portion between the one end portion and the another end portion in a side remote from a surface of the drum toward an outside with respect to a line connecting the portion-to-be-fixed and a contact portion where the blade portion is contacted to the drum. The portion-to-be-fixed is provided downstream of the contact portion with respect to movement direction of the drum. Between the frame and the another end portion, a gap for permitting elastic deformation of the another end portion is provided.
    Type: Application
    Filed: August 29, 2012
    Publication date: June 5, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hideto Oka, Masao Uyama, Kenji Shindo, Nobuyoshi Yoshida, Ryosuke Kanai, Satoru Inami
  • Publication number: 20140153989
    Abstract: A cleaning member includes: a blade portion contacted to the member-to-be-cleaned with respect to a counter direction to a movement direction of the member-to-be-cleaned; and a flexible supporting member. The supporting member includes one end portion where the blade portion is provided, another end portion including a portion-to-be-fixed for being fixed at the fixing portion, and a bent portion between the one end portion and the another end portion in a side remote from a surface of the member-to-be-cleaned toward an outside with respect to a line connecting the portion-to-be-fixed and a contact portion where the blade portion is contacted to the member-to-be-cleaned. The portion-to-be-fixed is provided downstream of the contact portion with respect to movement direction of the member-to-be-cleaned. The blade portion is supported by the supporting member in contact to only the one end portion.
    Type: Application
    Filed: August 29, 2012
    Publication date: June 5, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenji Shindo, Masao Uyama, Masaki Ojima
  • Publication number: 20140153987
    Abstract: A cleaning blade to remove a residual toner present on a surface of an electrophotographic photoreceptor, the cleaning blade having an excellent cleaning performance in a low temperature environment having a temperature range of about ?5° C. to about 20° C., and having an excellent abrasion resistance and an excellent durability in a high temperature environment having a temperature range of about 20° C. and up. A cleaning unit, an electrophotographic imaging apparatus, and an electrophotographic cartridge may include the cleaning blade.
    Type: Application
    Filed: July 17, 2013
    Publication date: June 5, 2014
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Soon-cheol JEONG, Cha-young BAE
  • Patent number: 8737900
    Abstract: A cleaning member, for use in an image forming apparatus in which a developer image formed on an image bearing member is to be transferred onto a developer image receiving member to form an image, for removing a developer remaining on the image bearing member after the transfer includes an elastic blade portion, having flexibility, for removing the developer remaining on the image bearing member in contact with the image bearing member in a bent state; and a supporting portion for supporting the elastic blade portion.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: May 27, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroshi Sato
  • Patent number: 8725055
    Abstract: The cleaning blade is mounted to a holder that is pivoted. The pivot mechanism is designed such that the instantaneous center of rotation of the blade holder, in its operational position, is positioned above the plane of blade tip contact to the photoreceptor and upstream of the blade tip or below the plane of contact and downstream from the blade tip. These configurations result in a reduction of blade load as friction coefficient increases and a slower increase in photoreceptor torque when compared to conventional interference loaded blades. By a careful choice of the location of the center of rotation, the blade load can be maintained at a sufficiently high value for good cleaning over the expected range of friction coefficients. A four bar linkage provides a compact mechanism to pivot the blade holder and avoids potential problems of the mechanism interfering with the process and other components.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: May 13, 2014
    Assignee: Xerox Corporation
    Inventor: Bruce Earl Thayer
  • Patent number: 8718531
    Abstract: A cleaner includes a cleaning member that includes a tip portion that comes into contact with an image carrier that carries an image, and that removes and cleans developer adhered to the image carrier, a cleaning container which stores the developer removed by the cleaning member, a cleaning support that includes a cleaning supporting portion that supports a proximal end of the cleaning member, and a damped portion, a damping body that includes a first and a second damping bodies arranged in contact with the damped portion and that regulates vibration of the cleaning support, and a fixing member of the damping body that includes a first fixing portion arranged to face the damped portion with the first damping body, and a second fixing portion arranged to face the damped portion with the second damping body, and that is supported by the cleaning container.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: May 6, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yuzo Ichikawa, Akiko Kimura, Tomoya Ichikawa
  • Publication number: 20140119781
    Abstract: A fitting structure for fitting a plate-form member to a fitting destination member such that a position of the plate-form member relative to a target member is adjustable, the fitting structure has an adjustment pin inserted, in a fashion movable in a position adjustment direction, in an adjustment hole formed in the plate-form member; and a screw member for fastening the plate-form member to the fitting destination member, wherein a direction of a force of the screw member that acts upon the plate-form member when the screw member is in a position where the screw member fastens the plate-form member points from a side where a gap formed between the adjustment pin and the adjustment hole is smaller to a side where the gap is larger.
    Type: Application
    Filed: October 23, 2013
    Publication date: May 1, 2014
    Applicant: Konica Minolta Inc.
    Inventors: Yuusuke OKUNO, Yasuyuki Inada, Kazuki Kobori
  • Patent number: 8699934
    Abstract: A cleaning mechanism includes a rubbing roller, a bearing, a toner amount restricting plate, and a bracket. The rubbing roller is abrasively contacted with the surface of a photosensitive drum. The bearing rotatably supports the rubbing roller. The toner amount restricting plate restricts the amount of toner adhered to the surface of the rubbing roller. The bracket holds the toner amount restricting plate in a state that the toner amount restricting plate is contacted with the rubbing roller. The bracket has a bearing holding portion which holds the bearing, and a toner amount restricting plate mounting portion to which the toner amount restricting plate is fixedly mounted. The bearing holding portion and the toner amount restricting plate mounting portion continue to each other via a first bent portion.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: April 15, 2014
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Kei Wakayama
  • Patent number: 8644753
    Abstract: A cleaning blade for cleaning a moving surface of an object by contacting an edge thereof with the moving surface is provided. The cleaning blade includes a strip-shaped elastic main body, in which a leading end portion thereof including the edge is impregnated with an ultraviolet-crosslinked resin; and a cover layer, which is located on a surface of a portion of the crosslinked resin-impregnated portion including the edge as an outermost layer and which has higher hardness than the strip-shaped elastic main body.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: February 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Masahiro Ohmori, Yohta Sakon
  • Patent number: 8634755
    Abstract: A cleaning unit includes: a cleaning member that cleans the surface of the image carrier; a cleaning container that stores developer removed by the cleaning member; a cleaning support that is formed by bending a plate and includes a cleaning-supporting portion supporting the other end portion of the cleaning member and a supported portion angled with respect to the cleaning-supporting portion by bending; a supporting-portion-of-support that includes a facing portion facing the supported portion, is provided at the cleaning container, and supports the cleaning support; a damping member that is disposed between the supported portion and the facing portion, is formed so as to be elastically deformable, and regulates vibration of the cleaning member; and a securing member that secures the cleaning support to the supporting-portion-of-support at a position adjacent to the damping member.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: January 21, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomoya Ichikawa, Akiko Kimura, Yuzo Ichikawa, Takahiro Shinkawa, Masaaki Tokunaga, Tsuneo Fukuzawa, Hirohisa Hoshino, Satoshi Honobe
  • Patent number: 8611804
    Abstract: An image forming apparatus includes a transportation member rotating to transport a medium or developer; a blade member disposed to abut against the transportation member for removing an object adhering to a surface of the transportation member; and a retaining member disposed on an upstream side of the blade member in a direction that the transportation member rotates and abutting against the transportation member for retaining the object adhering to the surface of the transportation member.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: December 17, 2013
    Assignee: Oki Data Corporation
    Inventor: Osamu Watanabe
  • Publication number: 20130287439
    Abstract: A cleaning unit including: frame abutment portions each including a first abutment portion and a second abutment portion; support portions each including a first support portion which abuts against the first abutment portion, and a second support portion which abuts against the second abutment portion so as to support a cleaning member in a pivotable manner about the frame abutment portions as a pivot axis; and an urging member configured to urge the cleaning member in a direction in which an elastic member is brought into contact with a photosensitive drum by pivoting the cleaning member.
    Type: Application
    Filed: April 15, 2013
    Publication date: October 31, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kazuo Chadani, Akihiro Fujiwara, Susumu Nittani, Masato Tanabe, Hideki Kakuta, Keisuke Nomura
  • Patent number: 8565661
    Abstract: A cleaning device that can be incorporated in an image forming apparatus which includes an image carrier configured to form a toner image, and a cleaning device configured to clean residual toner on the surface of the image carrier. The cleaning device includes a cleaning blade having a blade member provided to contact the surface of the image carrier and a holder to hold the blade member. The cleaning device further includes a frame to hold the cleaning blade and a vibration suppression member provided across the cleaning blade and the frame to couple the cleaning blade and the frame together and suppress vibration.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: October 22, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Michiya Okamoto, Hiroyuki Nagashima, Fumihito Itoh, Hiroshi Ono, Ken Amemiya, Masahiko Shakuto, Toshio Koike, Yuji Arai, Kaoru Yoshino, Takuma Iwasaki
  • Patent number: 8559848
    Abstract: Disclosed is a charging apparatus usable with an image forming apparatus that includes a body to be charged; a housing to rotatably support the body to be charged, a charging member to charge a surface of the body to be charged to a predetermined electric potential, a cleaning member to clean foreign materials remaining on the surface of the body to be charged, and a cleaning member supporting bracket disposed in the housing to support the cleaning member and the charging member.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: October 15, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-Won Moon, Mi-Na You
  • Patent number: 8543035
    Abstract: A cleaning device for removing a developer remaining on an image bearing member from the image bearing member includes a cleaning device, including an elastic blade and a supporting member for supporting the elastic blade, for removing the developer remaining on the image bearing member from the image bearing member; an image bearing member bearing member including a supporting portion for rotatably supporting the image bearing member; and a removed developer accommodating container formed of a material having a thermal expansion coefficient different from that of a material for the supporting member. The image bearing member bearing member is fixed to the supporting member. The removed developer accommodating container is fixed to the supporting member. The image bearing member bearing member and the removed developer accommodating container are provided with a gap therebetween with respect to a longitudinal direction of the supporting member.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: September 24, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Isao Koishi
  • Patent number: 8543048
    Abstract: According to aspects of the embodiments, there is provided an apparatus comprising a cleaning unit with a blade holder that rotates about a pivot point, the cleaning blade is coupled to the blade holder and is positioned to chisel excess toner from a photoreceptor surface. Geometrical changes produce a blade having a slanted surface that reduces cyclic fatigue stress at the blade tip and reduces blade edge wear. The blade has a sharp leading side, a trailing side, and a working end comprising a slanted surface. When the slanted surface is formed at an angle between 93 degrees to 97 degrees stiffer tips is produced and wears resulting from blade and photoreceptor surface contact is reduced.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: September 24, 2013
    Assignee: Xerox Corporation
    Inventors: Bruce Earl Thayer, Aaron Michael Burry
  • Publication number: 20130223905
    Abstract: A cleaning device for use with an image forming apparatus includes: a frame; and a cleaning member for removing a developer from an image bearing member (drum). The cleaning member includes: a blade portion contacted to the drum; and a flexible supporting member, the supporting member including one end portion where the blade portion is provided, another end portion including a portion-to-be-fixed, and a bent portion between the one end portion and the another end portion and a contact portion. When a distance between the portion-to-be-fixed and the drum in a longitudinal central side of the portion-to-be-fixed is D1, and a distance between the portion-to-be-fixed and the image bearing member in each of longitudinal end sides of the portion-to-be-fixed is D2, the distances D1 and D2 satisfy: D1?D2.
    Type: Application
    Filed: February 13, 2013
    Publication date: August 29, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: CANON KABUSHIKI KAISHA
  • Publication number: 20130216287
    Abstract: A cleaning device for use with an image forming apparatus, includes: a frame including a fixing portion; a cleaning member, fixed at the fixing portion, for removing developer from an image bearing member (drum). The cleaning member includes: a blade portion contacted to the drum; and a flexible supporting member for supporting the blade portion, the supporting member including one end portion where the blade portion is provided, another end portion including a portion-to-be-fixed at the fixing portion, and a bent portion between the end portions; and an engaging portion provided on the frame. The engaging portion is engaged, such that the blade portion is not contacted to the drum, with a portion-to-be-engaged provided at the supporting member to position the cleaning member. The engaging portion is spaced from the portion-to-be-engaged in a state in which the blade portion is contacted to the drum.
    Type: Application
    Filed: December 27, 2012
    Publication date: August 22, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: CANON KABUSHIKI KAISHA
  • Patent number: 8509671
    Abstract: A cleaner includes a cleaning member having a distal end in contact with an image carrier so as to remove developer attached to the image carrier, a cleaning container that stores the removed developer, a cleaning support body including a cleaning support portion extending from the distal end to a proximal end of the cleaning member so as to support the proximal end of the cleaning member, a bent portion bent from the cleaning support portion, and a supported portion supported by the cleaning container, a vibration-damping body in contact with an end of the bent portion opposite the cleaning support portion so as to regulate vibration of the cleaning support body, and a vibration-damping-body fixing member supported by the cleaning container and having a clamp portion that clamps the vibration-damping body between the vibration-damping-body fixing member and the end of the bent portion.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: August 13, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akiko Kimura, Tomoya Ichikawa, Yuzo Ichikawa, Takahiro Shinkawa, Hirohisa Hoshino, Toshiyuki Matsui
  • Patent number: 8503903
    Abstract: A developer collecting device includes a housing provided with an opening opposed to a developer carrying member, a collecting member provided on a support member and capable of coming into contact with and separating from the developer carrying member, a suction path provided between the opening and a suction member for sucking developer removed from the developer carrying member, an opening-closing plate that opens or closes the suction path, an urging member that urges the opening-closing plate, a retaining member that retains the opening-closing plate, and an opening-closing unit including a rotating member and an elastic member whose ends are connected to the rotating member and the support member. The elastic member is pulled so as to rotate the rotating member in association with a movement of the collecting member, thereby rotating the opening-closing plate so as to open or close the suction path.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: August 6, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masatoshi Yamada, Kiyotoshi Kaneyama, Masaaki Tokunaga