Cleaning Unit Patents (Class 399/123)
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Patent number: 8634743Abstract: In an image forming apparatus defined herein, in case the opening/closing member is rotationally moved from the opened position toward the normal position, when the detachable body main unit is at a restricted position between the attached position and the separated position, the restricting portion is contacted with the restricted portion to be moved between the opening/closing member and the detachable body main unit, so as to restrict a rotational movement of the opening/closing member to the normal position, and, when the detachable body main unit is at the attached position, the restricting portion and the restricted portion that is being rotated are separated from each other to enable the opening/closing member to be rotationally moved to the normal position, and, in case the opening/closing member is moved to the normal position, the restricted portion is housed in a space between the detachable body main unit and the opening/closing member.Type: GrantFiled: September 30, 2009Date of Patent: January 21, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Takashi Akaike, Toshio Takiguchi
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Patent number: 8634741Abstract: A cleaning cartridge insert is provided for removing residual paper debris and toner from a laser printer in between printer cartridge removal and replacement. The cartridge comprises a modified laser printer cartridge with an internal cavity lined with an adhesive foam tape, a plurality of air inlet tubes and a drive roller having an adhesive outer surface. With the lid of the printer cartridge loading cavity is in an open state, the cartridge is placed therein into a working position, as would a replacement cartridge. Compressed air is then forced into the nozzles of the air inlet tubes, stirring paper dust, residual toner and debris from the interior of the printer and onto the foam tape adhesive within the cavity of the cartridge device. The lid is then closed, which initiates the drive roller for cleaning debris from the bias transfer roller via rotation during the machine initializing stage.Type: GrantFiled: September 6, 2011Date of Patent: January 21, 2014Inventor: Paul Ottaviani
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Patent number: 8630554Abstract: The image forming device includes a main body and a cartridge that is detachably mountable on the main body. The cartridge includes the image bearing member, the first and second cleaning roller, and the state changing unit. The first cleaning roller cleans the image bearing member and the second cleaning roller cleans the first cleaning roller. The state changing unit is configured to irreversibly change an electrically disconnected state between the first cleaning roller and the second cleaning roller into an electrically connected state between the first cleaning roller and the second cleaning roller. The resetting unit is configured to reset the cumulative value when the current detecting unit does not detect current before the image bearing member rotates and detects current after the image bearing member rotates.Type: GrantFiled: July 28, 2011Date of Patent: January 14, 2014Assignee: Brother Kogyo Kabushiki KaishaInventor: Hiroya Fukuta
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Patent number: 8611801Abstract: The fixing apparatus is provided with a cleaning pad that is pressed against at least one of roller members composed of a fixing roller, a pressurizing roller and an external heating roller to clean a surface of the roller member, and the cleaning pad is composed of a pad member that cleans the surface of the roller member, and a support member that press the pad member against the surface of the roller member to support. The support member has a plurality of opening portions formed along a thrust direction of the roller member, and has a larger opening area per unit length of the support member at a center part of the support member than that at both edge parts thereof. For example, an interval of holes or slits is narrower at the center part of the support member than that at the both edge parts thereof.Type: GrantFiled: March 9, 2011Date of Patent: December 17, 2013Assignee: Sharp Kabushiki KaishaInventors: Hirokazu Nakamura, Masaki Amemiya, Takashi Yamanaka
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Patent number: 8611776Abstract: A cleaning apparatus includes a first cleaning roller, and a second cleaning roller. The first cleaning roller is contrived to contact to a circumferential surface against a moving member to be cleaned and to apply a bias to the member to be cleaned while rotating such that the circumferential surface of the first cleaning roller moves in a same direction as the member to be cleaned moves. The second cleaning roller is contrived to contact to the member to be cleaned after the member has been cleaned by the first cleaning roller and to rotate such that a circumferential surface of the second cleaning roller moves in a direction opposite a direction in which the member being cleaned moves.Type: GrantFiled: April 20, 2011Date of Patent: December 17, 2013Assignee: Seiko Epson CorporationInventors: Itaru Kozuma, Tomoyuki Shiiya, Tsutomu Sasaki
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Patent number: 8588642Abstract: An image forming apparatus is provided. The image forming apparatus includes a chassis, photosensitive members, an intermediate transfer belt including a first plane and a second plane, a waste toner container, a first feeding path extending between a first feed roller and a secondary-transfer roller, a second feeding path being a path for a recording sheet inserted through a sheet inlet, a second feed roller arranged in an overlapping position to at least partially overlap with the waste toner container when viewed along a horizontal plane and in a position out of a course of the waste toner container being installed in and removed from the chassis. The second plane of the intermediate transfer belt extends downwardly in an inclined angle with respect to the first plane. The waste toner container is movable along the second plane of the intermediate transfer belt to be settled in the chassis.Type: GrantFiled: February 9, 2011Date of Patent: November 19, 2013Assignee: Brother Kogyo Kabushiki KaishaInventors: Hirotaka Mori, Hiroshi Nakano, Shougo Sato
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Publication number: 20130287439Abstract: 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: ApplicationFiled: April 15, 2013Publication date: October 31, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Kazuo Chadani, Akihiro Fujiwara, Susumu Nittani, Masato Tanabe, Hideki Kakuta, Keisuke Nomura
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Patent number: 8565661Abstract: 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: GrantFiled: September 21, 2009Date of Patent: October 22, 2013Assignee: Ricoh Company, Ltd.Inventors: Michiya Okamoto, Hiroyuki Nagashima, Fumihito Itoh, Hiroshi Ono, Ken Amemiya, Masahiko Shakuto, Toshio Koike, Yuji Arai, Kaoru Yoshino, Takuma Iwasaki
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Patent number: 8559848Abstract: 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: GrantFiled: July 23, 2009Date of Patent: October 15, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Ji-Won Moon, Mi-Na You
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Patent number: 8548351Abstract: An image-forming device includes a plurality of developing units, an endless belt, and a cleaning unit. The cleaning unit includes a cleaning member and a conveying unit. The cleaning member contacts the endless belt to clean toner remaining on the endless belt. The conveying unit includes a first conveying unit, a second conveying unit, and a first relaying member. The first relaying member relays the remaining toner conveyed by the first conveying unit to the second conveying unit, and has a relay-axis. The cleaning member pivots about the relay axis to move between a contacting position for contacting the endless belt and a separating position for separating from the endless belt.Type: GrantFiled: November 7, 2012Date of Patent: October 1, 2013Assignee: Brother Kogyo Kabushiki KaishaInventors: Shougo Sato, Susumu Sakuma
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Patent number: 8535861Abstract: There is provided an image forming apparatus including electrophotographic photoreceptor, a charging unit, an electrostatic latent image forming unit, a developing unit, and a residual toner removing unit, the surface protective layer of the electrophotographic photoreceptor having a surface free energy of about 10 mN/m to about 30 mN/m, the toner in the developing unit includes silica, and the residual toner removing unit including a blade member including a base layer and an edge layer having a type A durometer hardness of from about HsA 75 to about HsA 90 at 23° C., the hardness of the edge layer being higher than the hardness of the base layer.Type: GrantFiled: September 9, 2009Date of Patent: September 17, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Daisuke Haruyama, Masahiro Iwasaki, Takayuki Yamashita
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Patent number: 8532521Abstract: An image forming apparatus includes: an image forming unit including a plurality of photoconductor drums arranged in tandem; a conveyor belt arranged opposite to the photoconductor drums and configured to convey a recording sheet; and a cleaning unit including a cleaning member positioned in contact with the conveyor belt and configured to collect substance adhering to the conveyor belt, and a receptacle configured to store the substance collected by the cleaning member. The cleaning member is arranged on the same side as the image forming unit with respect to the conveyor belt and upstream from the image forming unit as viewed in a sheet conveyance direction along which the recording sheet is conveyed on the conveyor belt, and the image forming unit and the cleaning unit are pulled out together from a main body of the image forming apparatus toward an upstream side of the sheet conveyance direction.Type: GrantFiled: September 6, 2012Date of Patent: September 10, 2013Assignee: Brother Kogyo Kabushiki KaishaInventor: Susumu Sakuma
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Patent number: 8526854Abstract: A cleaning body is provided including: a rotating axial member; an elastic layer, fixed to the axial member, contacting a body to be cleaned and cleaning the body to be cleaned; a held portion projecting out towards the axial member axial direction outside from an axial direction end portion of the elastic layer; a holding member provided at an axial direction end portion of the axial member and holding the held portion between the holding member and the axial member; and a cleaning portion including an incision formed in a width direction central portion of the end portion of the elastic layer, formed such that the incision is open by the held portion being held by the holding member, the cleaning portion contacting an end portion of the body to be cleaned and cleaning the end portion of the body to be cleaned.Type: GrantFiled: March 8, 2011Date of Patent: September 3, 2013Assignee: Fuji Xerox Co., Ltd.Inventor: Ichirou Kawahara
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Patent number: 8509648Abstract: An image forming apparatus is provided. The image forming apparatus includes a chassis having a first opening on a first side, a cover, movable between an open position and a closed position, a plurality of photosensitive members, an intermediate transfer belt, a plurality of primary-transfer members, a secondary-transfer roller, a first feed roller, a cleaner device, a waste toner container, which is removably installed in the chassis through the first opening and settled in a position opposite from the plurality of photosensitive members across the intermediate transfer belt, to store residual toner collected by the cleaner device, a connector, a first feeding path, a second feeding path, and a second feed roller. The second feed roller is rotatably supported by the cover and movable along with the cover to yield the first opening to the waste toner container when the cover is in the open position.Type: GrantFiled: January 28, 2011Date of Patent: August 13, 2013Assignee: Brother Kogyo Kabushiki KaishaInventors: Hirotaka Mori, Hiroshi Nakano, Noboru Suzuki, Shougo Sato
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Patent number: 8503903Abstract: 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: GrantFiled: June 6, 2011Date of Patent: August 6, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Masatoshi Yamada, Kiyotoshi Kaneyama, Masaaki Tokunaga
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Patent number: 8498551Abstract: An image forming apparatus includes: an image forming unit having a plurality of photoconductor drums arranged in tandem; an intermediate transfer belt arranged opposite to the photoconductor drums and configured to receive developer images formed on the photoconductor drums and to transfer the developer images onto a recording sheet; a cleaning unit comprising a cleaning member positioned in contact with the intermediate transfer belt and configured to collect substance adhering to the intermediate transfer belt, and a receptacle configured to store the substance collected by the cleaning member, wherein the cleaning unit is arranged on the same side as the image forming unit with respect to the intermediate transfer belt; and a support member configured to support the image forming unit and the cleaning unit and to be pulled out from a main body.Type: GrantFiled: January 29, 2013Date of Patent: July 30, 2013Assignee: Brother Kogyo Kabushiki KaishaInventors: Shougo Sato, Susumu Sakuma
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Patent number: 8494429Abstract: An image forming apparatus including multiple photoreceptors; multiple chargers that charge the respective photoreceptors; a latent image forming device that forms respective latent images on the respective charged photoreceptors; multiple developing devices that develop the respective latent images into respective toner images; multiple transfer devices that transfer the respective toner images onto an intermediate transfer member; multiple cleaning devices that remove residues remaining on the respective photoreceptors after transferring the respective toner images therefrom; and one or more BN-containing protective agent applicators that apply a BN-containing protective agent comprising a metal soap and boron nitride to the respective photoreceptors. The total number of the photoreceptors is N being an integer of 2 or more, and the total number of the BN-containing protective agent applicators is between 1 and N?1.Type: GrantFiled: November 16, 2010Date of Patent: July 23, 2013Assignee: Ricoh Company, LimitedInventors: Kumiko Seo, Toshiyuki Kabata, Hiroshi Nakai
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Patent number: 8488991Abstract: An image forming device includes a housing; a conveying belt, and a retaining member. The retaining member retains image bearing members that juxtaposed with and spaced apart from one another. The retaining member is slidingly movable relative to the housing in a direction that the image bearing members are juxtaposed. The retaining member retains the image bearing members to confront the conveying belt. The image bearing members and the conveying belt are arranged in a reference direction. The retaining member includes a cleaning member that removes residual developing agent from the conveying belt, and a guide unit that guides the recording medium to the conveying belt. The guide unit is located on the image bearing member side and the cleaning member is located on the conveying belt side. At least part of the guide unit overlaps at least part of the cleaning member when projected in the reference direction.Type: GrantFiled: March 26, 2010Date of Patent: July 16, 2013Assignee: Brother Kogyo Kabushiki KaishaInventor: Shougo Sato
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Patent number: 8478149Abstract: A belt device includes an endless belt including at least a base layer and a coat layer, the coat layer formed on the base layer and configuring an upper most surface of the belt; a driving member that rotates the belt and that is provided at one end of the belt to bias an inner circumferential surface of the belt; and a driven member that rotates the belt and that is provided at other end of the belt to bias the inner circumferential surface of the belt. Wherein the base layer has a mirror specularity of 20-60.Type: GrantFiled: December 1, 2010Date of Patent: July 2, 2013Assignee: Oki Data CorporationInventor: Takayuki Takazawa
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Publication number: 20130149005Abstract: An image forming apparatus is provided. The image forming apparatus includes a chassis having a first opening on a first side, photosensitive members, an intermediate transfer belt arranged to have a surface thereof facing the photosensitive members, primary-transfer members, a secondary-transfer roller, a first feed roller, a cleaner device, a waste toner container, which is removably installed in the chassis through the first opening and settled in a position opposite from the photosensitive members across the intermediate transfer belt, a connector, a first feeding path extending in a range between the first feed roller and the secondary-transfer roller, and a second feeding path being formed in clearance between the intermediate transfer belt and the waste toner container to convey a recording sheet being inserted through a sheet inlet and merging into the first feeding path in the vicinity of the first feed roller.Type: ApplicationFiled: February 7, 2013Publication date: June 13, 2013Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Hirotaka Mori, Hiroshi Nakano, Noboru Suzuki, Shougo Sato
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Publication number: 20130121728Abstract: An image forming apparatus includes a casing; an endless belt; a cleaning unit configured to collect a waste toner remaining on the endless belt; a first cartridge including a first accommodating portion to accommodate toner to be supplied to a first photosensitive member; a second cartridge including a second accommodating portion to accommodate toner to be supplied to a second photosensitive member, and a waste toner retainer to accommodate waste toner collected by the cleaning unit; a waste toner conveying unit configured to convey the waste toner collected by the cleaning unit to the waste toner retainer; and a moving member configured to support the first cartridge, the second cartridge, and the cleaning unit, the moving member being movable in a first direction from an inner position in the casing to an outer position out of the casing.Type: ApplicationFiled: January 4, 2013Publication date: May 16, 2013Inventor: Susumu Sakuma
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Patent number: 8437657Abstract: A cleaning apparatus including: a normally-charged toner cleaning member that receives a voltage having a polarity reverse to a normal charging polarity of a toner and electostatically removes a toner having the normal charging polarity on a cleaning target; a reversely-charged toner cleaning member that receives a voltage having the same polarity as the normal charging polarity of a toner and electrostatically removes a toner having a polarity reverse to the normal charging polarity on the cleaning target; and a pre-cleaning member that is disposed at an upstream side of the normally-charged toner cleaning member and the reverse-charged toner cleaning member in a surface moving direction of the cleaning target, receives a voltage having a polarity reverse to the normal charging polarity of the toner, and electrostatically removes a toner having the normal charging polarity on the cleaning target, is provided.Type: GrantFiled: November 29, 2010Date of Patent: May 7, 2013Assignee: Ricoh Company, LimitedInventors: Hisashi Kikuchi, Kenji Sugiura, Osamu Naruse, Naomi Sugimoto, Yoshiki Hozumi, Yuu Sakakibara
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Publication number: 20130108321Abstract: 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: ApplicationFiled: October 24, 2012Publication date: May 2, 2013Applicant: CANON KABUSHIKI KAISHAInventor: CANON KABUSHIKI KAISHA
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Patent number: 8429787Abstract: The present invention provides a cleaning assembly for use in a media processing device. In various embodiments, the cleaning assembly includes a first roller that at least partially engages a second roller, and a transport path that passes between the first roller and the second roller. There may also be a third collection roller that at least partially engages the second roller. The third collection roller may also engage a drive assembly that may be used to drive a media substrate along the transport path. In one embodiment, the second roller defines a surface adherence that is greater than a surface adherence of the first roller and the third collection roller defines a surface adherence that is greater than the surface adherence of the second roller and the drive assembly. As a result, the present invention provides a cleaning assembly capable of cleaning the drive assembly and opposed surfaces of a media substrate in a single pass.Type: GrantFiled: January 10, 2009Date of Patent: April 30, 2013Assignee: ZIH Corp.Inventors: Raymond Eugene Maynard, Michael Francis St. Germain, Thomas Richard Helma
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Patent number: 8428481Abstract: According to aspects of the embodiments, there is provided an apparatus and method to manage the contact of a cleaning blade and a moving surface to increase the useful life of the blade. For example, a cleaning apparatus for a photoreceptor surface comprises a cleaning unit with a blade holder that rotates about a pivot point, a cleaning blade that is coupled to the blade holder and is positioned to chisel excess toner from the photoreceptor surface, and which cleans excess toner from the photoreceptor surface. The apparatus further comprises a sensor that senses the start and the end of an operational procedure, and an actuator that rotates the blade holder about the pivot point to selectively advance or retract the blade during the start-up procedure and the shut-down procedure. After the cleaning surface has begun to move or reached operating speed, blade contact is increased to bring the blade load up to operational level.Type: GrantFiled: July 21, 2010Date of Patent: April 23, 2013Inventors: Bruce Earl Thayer, Aaron Michael Burry, William C. Dean
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Patent number: 8417149Abstract: A transfer unit has a belt unit having a belt and a cleaning unit for cleaning the belt. The belt unit and the cleaning unit are integratedly provided. The cleaning unit is movable for the belt unit. The transfer unit is detachable for an apparatus main body. A position of the cleaning unit for the belt unit before the transfer unit is attached to the apparatus main body is different from a position of the cleaning unit for the belt unit after the transfer unit is attached to the apparatus main body.Type: GrantFiled: January 18, 2012Date of Patent: April 9, 2013Assignee: Canon Kabushiki KaishaInventor: Emi Furuya
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Patent number: 8417152Abstract: A process cartridge is detachably mountable to a main assembly of an image forming apparatus. The process cartridge includes an image bearing member, a cleaning member for removing a developer from the image bearing member, a frame provided with an opening, and a developer accommodating portion for accommodating the developer which was removed by the cleaning member and passed through the opening. A sheet member is also provided, contacting the image bearing member, for preventing the developer from leaking out of the developer accommodating portion. A supporting portion is provided to the frame, for supporting the sheet member. A reinforcing portion, provided to the frame, connecting one end side portion of the frame located upstream of the opening with the other end side portion of the frame located downstream of the opening, with respect to a rotational direction of the image bearing member.Type: GrantFiled: August 20, 2009Date of Patent: April 9, 2013Assignee: Canon Kabushiki KaishaInventors: Yoshifumi Takeyama, Tetsuya Numata, Shigeo Miyabe
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Publication number: 20130077994Abstract: A detachable unit includes a detachable unit body to be attached to an image forming apparatus body such as to be detachable in a predetermined detachment direction, a grip part provided in the detachable unit body, and a latch portion provided in the detachable unit body, the latch portion being latched in a latched portion provided in the image forming apparatus body to restrict detachment of the detachable unit body from the image forming apparatus body in a state in which the detachable unit body is attached to the image forming apparatus body, and withdrawing from a latch position in the latched portion in conjunction with a pull-out operation of pulling out the grip part from the detachable unit body in the detachment direction.Type: ApplicationFiled: February 21, 2012Publication date: March 28, 2013Applicant: FUJI XEROX CO., LTD.Inventor: Toshio TAKIGUCHI
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Patent number: 8406653Abstract: An image-forming apparatus comprises: a body having a mount/remove opening; a removable component that can be mounted on or removed from the body via the mount/remove opening, the removable component being operable when mounted on the body; a door attached to the mount/remove opening; a mounting unit, on which the removable component is mounted, attached to the body; a connecting member that connects the door and the mounting unit, a position or attitude of the mounting unit in accordance with an opening/closing operation of the door, causes the removable component to move to a first position in which the removable component is operable when the door is closed, and causes the removable component mounted on the mounting unit to move to a second position, which is more easily accessible when the door is opened.Type: GrantFiled: October 27, 2010Date of Patent: March 26, 2013Assignee: Fuji Xerox Co., Ltd.Inventor: Masaya Okamoto
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Patent number: 8404422Abstract: The presently disclosed embodiments relate generally to layers that are useful in imaging apparatus members and components, for use in electrophotographic, including digital, apparatuses. Embodiments pertain to an improved electrophotographic imaging member comprising a very thin outer layer on the imaging member surface, where the outer layer comprises healing materials that act as a barrier against moisture and/or surface contaminants. The improved imaging member exhibits improved xerographic performance, such as reduced wear and deletions in high humidity conditions. Embodiments also pertain to methods for making the improved electrophotographic imaging member.Type: GrantFiled: August 10, 2009Date of Patent: March 26, 2013Assignee: Xerox CorporationInventors: Woo Soo Kim, Nan-Xing Hu, Vladislav Skorokhod, Cuong Vong, Gregory McGuire
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Patent number: 8404423Abstract: The presently disclosed embodiments relate generally to layers that are useful in imaging apparatus members and components, for use in electrophotographic, including digital apparatuses. Embodiments pertain to an improved electrophotographic imaging member used in customer replaceable units (CRU) comprising a very thin outer layer on the imaging member surface, where the outer layer comprises healing materials that act as a barrier against moisture and/or surface contaminants. The improved imaging member exhibits improved xerographic performance, such as reduced wear and deletions in high humidity conditions.Type: GrantFiled: July 28, 2010Date of Patent: March 26, 2013Assignee: Xerox CorporationInventors: Woo Soo Kim, Gaetano J. Lavigne, Cuong Vong, Johann Junginger, Vladislav Skorokhod, Nan-Xing Hu
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Patent number: 8401422Abstract: Disclosed is a cleaning apparatus including: a blade and a roller to remove the residual toner on the image carrier, the blade and the roller provided on a downstream side of a rotating direction of the image carrier than a transfer position of the toner image; a scraper to remove toner attached to the roller; and a first controlling section to control movement of the residual toner removed by the blade and the roller, the first controlling section is provided on an upstream side of the rotating direction of the image carrier than the blade and on a downstream side of the rotating direction of the image carrier than the roller and the scraper, and the first controlling section is provided facing the image carrier with a certain area provided in between to form an accumulating section to accumulate residual toner in the certain area.Type: GrantFiled: August 20, 2010Date of Patent: March 19, 2013Assignee: Konica Minolta Business Technologies, Inc.Inventors: Hideaki Tanaka, Kazuteru Ishizuka
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Patent number: 8396380Abstract: An electrophotographic image forming apparatus for forming an image on a recording material, the apparatus includes a plurality of electrophotographic photosensitive drums; a cartridge which contains a developer and which is detachably mountable to a main assembly of the apparatus of the electrophotographic image forming apparatus in a direction perpendicular to an axis of the electrophotographic photosensitive drum; a cartridge mounting portion for mounting the cartridge; a plurality of cleaning members for removing the developers remaining on surfaces of the electrophotographic photosensitive drums; a removed-developer accommodating container for accommodating the developers removed by the cleaning members, the removed-developer accommodating container being detachably mountable to the main assembly of the apparatus in a direction perpendicular to the axial direction, wherein the cartridges are disposed along a second direction, and the removed-developer accommodating container are adjacent to the cartridgeType: GrantFiled: April 27, 2010Date of Patent: March 12, 2013Assignee: Canon Kabushiki KaishaInventors: Ken Kikuchi, Tsutomu Nishiuwatoko, Takashi Akutsu
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Publication number: 20130051837Abstract: An image forming device includes: a main casing; a plurality of photosensitive bodies; a first roller; a second roller; an endless belt; a plurality of primary transfer members; a cleaning unit; and a secondary transfer member. The cleaning unit is configured to collect residual toner remaining on the endless belt, and detachable from and attachable to the main casing. The secondary transfer member is provided at the cleaning unit such that the secondary transfer member is detachable from the main casing upon detachment of the cleaning unit from the main casing and attachable to the main casing upon attachment of the cleaning unit to the main casing.Type: ApplicationFiled: March 7, 2012Publication date: February 28, 2013Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Masanari YOSHIKAWA
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Patent number: 8369735Abstract: An image forming apparatus includes: an image forming unit having a plurality of photoconductor drums arranged in tandem; an intermediate transfer belt arranged opposite to the photoconductor drums and configured to receive developer images formed on the photoconductor drums and to transfer the developer images onto a recording sheet; a cleaning unit comprising a cleaning member positioned in contact with the intermediate transfer belt and configured to collect substance adhering to the intermediate transfer belt, and a receptacle configured to store the substance collected by the cleaning member, wherein the cleaning unit is arranged on the same side as the image forming unit with respect to the intermediate transfer belt; and a support member configured to support the image forming unit and the cleaning unit and to be pulled out from a main body.Type: GrantFiled: April 9, 2012Date of Patent: February 5, 2013Assignee: Brother Kogyo Kabushiki KaishaInventors: Shougo Sato, Susumu Sakuma
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Publication number: 20130028629Abstract: In an image-forming device, a first roller and a second roller are arranged in a first direction, the first roller being disposed at an upstream of the second roller in the first direction. An endless belt spanned between the first roller and the second roller forms a straight plane extending in the first direction. The straight plane moves in the first direction when the endless belt is circularly moved. A plurality of photosensitive members is arranged in the first direction and faces the straight plane. A transfer member is opposed to the first roller across the endless belt. A cleaning unit includes: a cleaning member opposed to the straight plane at an upstream of an upstreammost photosensitive member in the first direction; and a treating member disposed at an upstream of the cleaning member in the first direction to treat the residual toner collected by the cleaning member.Type: ApplicationFiled: March 23, 2012Publication date: January 31, 2013Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Masanari YOSHIKAWA
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Publication number: 20120328330Abstract: A cleaning device includes a cleaning blade for removing toner remaining on a surface of an image bearing member for carrying a toner image; a supporting member for supporting the cleaning blade; a mounting hole provided in one of the cleaning blade and the supporting member; a projection which is provided on the other of the cleaning blade and the supporting member and which is inserted in the mounting hole; and a recess provided in the projection and extended from a free end portion of the projection toward a base portion of the projection, wherein the cleaning blade and the supporting member are secured to each other by the projection deformed such that the recess expands outwardly of the mounting hole by resin material in the recess.Type: ApplicationFiled: September 4, 2012Publication date: December 27, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Hiroomi Matsuzaki, Akira Suzuki
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Patent number: 8315535Abstract: A cleaning unit, which can be incorporated in a process cartridge removably installable in an image forming apparatus, includes a lubricant applicator to apply lubricant to an image carrier, a first blade disposed upstream from the lubricant applicator in a direction of rotation of the image carrier with its distal end held in contact with the image carrier to remove residual toner remaining on the image carrier, a second blade disposed downstream from the lubricant applicator in the direction of rotation of the image carrier with its distal end held in contact with the image carrier to regulate the amount of lubricant applied to the image carrier, a temperature measuring member to measure a temperature of or near the second blade, a heater, and a temperature controller to control the heater to heat the second blade so that the measured temperature falls within a given set temperature range.Type: GrantFiled: December 4, 2009Date of Patent: November 20, 2012Assignee: Ricoh Company, Ltd.Inventors: Takeshi Shintani, Nobuo Kuwabara, Satoshi Hatori, Daisuke Tomita, Akio Kosuge, Yoshinori Ozawa, Shinichi Kawahara, Takaya Muraishi, Yasushi Akiba
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Patent number: 8311440Abstract: A cleaning pad that is part of a printer developer customer replaceable unit cleans a laser aperture each time the customer replacement unit is removed and/or replaced. The pad is located on an inboard end of the customer replaceable unit such that when inserted into the printer it wipes any accumulated toner from the surface of the laser aperture. Also, in developer units that include a light proof cover that retracts at the time of insertion, the wiper is situated so that it cleans the aperture in the process of retracting.Type: GrantFiled: May 19, 2010Date of Patent: November 13, 2012Assignee: Xerox CorporationInventor: Robert C Tidrick
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Patent number: 8311443Abstract: An image-forming device includes a plurality of developing units, an endless belt, and a cleaning unit. The cleaning unit includes a cleaning member and a conveying unit. The cleaning member contacts the endless belt to clean toner remaining on the endless belt. The conveying unit includes a first conveying unit, a second conveying unit, and a first relaying member. The first relaying member relays the remaining toner conveyed by the first conveying unit to the second conveying unit, and has a relay-axis. The cleaning member pivots about the relay axis to move between a contacting position for contacting the endless belt and a separating position for separating from the endless belt.Type: GrantFiled: February 9, 2010Date of Patent: November 13, 2012Assignee: Brother Kogyo Kabushiki KaishaInventors: Shougo Sato, Susumu Sakuma
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Patent number: 8306469Abstract: A belt unit including an endless belt that is stretched over a plurality of rollers, a drive roller, and a tension roller. The belt unit also includes a cleaning apparatus which includes a rotary unit and a cleaning member configured to clean a surface of the endless belt. The tension roller is arranged at a position opposing the cleaning apparatus and configured to transmit a driving force to the rotary unit.Type: GrantFiled: August 6, 2008Date of Patent: November 6, 2012Assignee: Ricoh Company, Ltd.Inventors: Yoshiyuki Kimura, Hiroshi Ishii, Ryuta Takeichi, Masaharu Furuya
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Patent number: 8305419Abstract: An image forming apparatus, including: an image carrier; an exposure section, having a light emitting surface which is positioned above the image carrier, to focus the light rays on the surface of the image carrier; a cleaning section, having a cleaning member, to make the cleaning member to come into contact with the light emitting surface and to move the cleaning member on the light emitting surface, so that the cleaning member removes dust particles accumulated on the light emitting surface, wherein the cleaning section makes the cleaning member to move to an outside of an end portion of the light emitting surface; and a dust receiving section, mounted under the outside of the end portion of the light emitting surface, to receive the dust particles removed from the light emitting surface by the cleaning section.Type: GrantFiled: February 23, 2009Date of Patent: November 6, 2012Assignee: Konica Minolta Business Technologies, Inc.Inventor: Shinji Morita
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Patent number: 8290393Abstract: An image forming apparatus includes: an image forming unit including a plurality of photoconductor drums arranged in tandem; a conveyor belt arranged opposite to the photoconductor drums and configured to convey a recording sheet; and a cleaning unit including a cleaning member positioned in contact with the conveyor belt and configured to collect substance adhering to the conveyor belt, and a receptacle configured to store the substance collected by the cleaning member. The cleaning member is arranged on the same side as the image forming unit with respect to the conveyor belt and upstream from the image forming unit as viewed in a sheet conveyance direction along which the recording sheet is conveyed on the conveyor belt, and the image forming unit and the cleaning unit are pulled out together from a main body of the image forming apparatus toward an upstream side of the sheet conveyance direction.Type: GrantFiled: September 24, 2011Date of Patent: October 16, 2012Assignee: Brother Kogyo Kabushiki KaishaInventor: Susumu Sakuma
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Patent number: 8280293Abstract: In an image forming apparatus including a plurality of image forming devices, a first image forming device in which a leveling blade that functions as a lubricant leveling blade is easily worn away over time uses an obtuse-angle blade as a first leveling blade, and a second image forming device being other image forming device among the plurality of image forming devices uses a right-angle blade as a second leveling blade.Type: GrantFiled: July 15, 2010Date of Patent: October 2, 2012Assignee: Ricoh Company, LimitedInventors: Takeshi Shintani, Nobuo Kuwabara, Satoshi Hatori, Daisuke Tomita, Akio Kosuge, Shinichi Kawahara, Shinya Karasawa, Takaya Muraishi, Yasushi Akiba
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Patent number: 8280294Abstract: A cleaning device includes a rotary member that contacts with an image carrier and moves materials on a surface of the image carrier along a rotation direction of the rotary member; a scraping member that contacts with the rotary member to scrape the materials adhering on the rotary member; a collected material receiving portion disposed downstream of a contact portion of the rotary member and the scraping member in a gravity direction; plural openings provided along a width direction of the image carrier by a partition member, through which the materials scraped by the scraping member pass to the collected material receiving portion; a protrusion portion that is arranged between the openings and the contact portion of the rotary member and the scraping member, and protrudes toward an upstream side in a rotation direction of the rotary member.Type: GrantFiled: February 2, 2010Date of Patent: October 2, 2012Assignee: Fuji Xerox Co., Ltd.Inventor: Kuniaki Tanaka
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Patent number: 8265524Abstract: A transfer device includes a cleaning device, a waste toner bottle, a connecting unit, and a regulating unit. The cleaning device removes waste toner remaining on an intermediate transfer belt. The waste toner bottle has an intake opening for collecting the waste toner therein. The connecting unit conveys the waste toner from the cleaning device to the waste toner bottle, and has a discharge opening that is configured to engage the intake opening to discharge the waste toner into the waste toner bottle through the intake opening. The regulating unit regulates the position of the waste toner bottle in a direction perpendicular to the moving direction of the waste toner bottle before the discharge opening comes in contact with the intake opening.Type: GrantFiled: December 7, 2007Date of Patent: September 11, 2012Assignee: Ricoh Company, LimitedInventors: Kohji Hatayama, Tomofumi Inoue, Takeshi Sakashita, Mitsutoshi Kichise, Yuuji Meguro, Takeru Muramatsu
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Patent number: 8259353Abstract: An image forming apparatus is provided. A first cleaning unit is configured to collect a particle deposited on an object. An applying unit is configured to apply a voltage to the first cleaning unit. A first detector is configured to detect a first current flowing between the first cleaning unit and the object. A controller is configured to control the applying unit. When the detected first current becomes equal to or greater than a first predetermined value, the controller controls the applying unit to reduce the voltage applied to the first cleaning unit so as to make the first current smaller than the first predetermined value.Type: GrantFiled: April 21, 2009Date of Patent: September 4, 2012Assignee: Brother Kogyo Kabushiki KaishaInventors: Masahito Hamaya, Tsuyoshi Maruyama
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Patent number: 8254822Abstract: According to an aspect of the invention, an image forming apparatus includes a removing unit, a conveying unit, a partitioning unit. The removing unit includes an edge portion and removes toner on an image carrier while the tip end contacts the image carrier. The conveying unit conveys, toward an axial direction of the conveying unit, the toner removed from the image carrier and moved above the removing unit, the conveying unit being disposed above the removing unit. The partitioning unit is inclined to a conveying direction of the conveying unit and is disposed above the removing unit through a space.Type: GrantFiled: November 11, 2009Date of Patent: August 28, 2012Assignee: Fuji Xerox Co., Ltd.Inventor: Mitsuo Yamamoto
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Patent number: 8244156Abstract: A method for manufacturing a cleaning device of the image forming apparatus, the method includes: applying a liquid material to an area outside of an edge located at an end portion of a toner accommodating portion in the longitudinal direction of a toner removing member, wherein the liquid material is applied so as to seal the toner accommodating portion.Type: GrantFiled: December 17, 2008Date of Patent: August 14, 2012Assignee: Fuji Xerox Co., Ltd.Inventors: Kazunori Iwamoto, Naoki Koike, Yusuke Inoue
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Patent number: 8233817Abstract: An image forming apparatus includes: an image forming unit having a plurality of photoconductor drums arranged in tandem; a conveyor belt arranged opposite to the plurality of photoconductor drums and configured to convey a recording sheet; a cleaning unit having a cleaning member positioned in contact with the conveyor belt to collect substance adhering to the conveyor belt, and a receptacle configured to store the substance collected by the cleaning member, wherein the cleaning unit is arranged on the same side as the image forming unit with respect to the conveyor belt; and a positioning member configured to cause the cleaning member to be positioned at a contacting position where the cleaning member contacts with the conveyor belt and at a spaced-apart position where the cleaning member is away from the conveyor belt.Type: GrantFiled: January 30, 2009Date of Patent: July 31, 2012Assignee: Brother Kogyo Kabushiki KaishaInventor: Susumu Sakuma