Metering (regulating, Gate, Discharge Ports) Patents (Class 399/260)
  • Patent number: 11106158
    Abstract: A powder supply device includes: a storage unit that stores a mixed agent including a functional material-containing powder and magnetic powder, the storage unit being provided with a discharge port through which a part of the stored mixed agent is discharged; a supply unit that holds the mixed agent and supplies the functional material-containing powder from the storage unit; and a magnetic body that covers at least a part of the discharge port and forms a nap of the mixed agent to prevent the mixed agent that is dispersed in air from flowing out through the discharge port.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: August 31, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Sakae Yoshioka, Takashi Sakamoto
  • Patent number: 11048191
    Abstract: A developer supply container includes a developer accommodating portion having one end provided with an opening, and drive receiving portion, a discharging portion including a receiving portion into which the one end of the accommodating portion is inserted, and a developer discharge opening, the accommodating portion being mounted to the discharging portion rotatably relative to the discharging portion; a sealing member sealing between the one end and the receiving portion; a projection radially projecting from an outer peripheral surface of the accommodating portion; and a first restricting portion and a second restricting portion provided on the receiving portion of the discharging portion at positions upstream and downstream of the projection, respectively in the inserting direction and contactable to the projection to restrict an inclination of the rotational axis of the accommodating portion relative to the inserting direction within a predetermined range.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: June 29, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masataka Fumoto, Dai Kanai, Kiyoshi Oyama
  • Patent number: 10871729
    Abstract: A powder container includes a powder chamber for containing powder for forming images, a powder outlet formed in a face of the powder container, and a shutter assembly to open and close the powder outlet and including first and second shutters. The first shutter is movable between a sealing position to close the powder outlet and an open position to open the powder outlet and includes a pressed member to cancel retention of the first shutter at the sealing position. The second shutter includes a pressing projection that interferes with the pressed member of the first shutter and is movable between a shielding position to cover the pressed member without interference between the pressing projection and the pressed member and a releasing position to press the pressed member with the pressing projection.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: December 22, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Kentaro Nodera, Emi Kita, Akihiro Takayama, Susumu Tateyama, Shinnosuke Koshizuka, Tatsuya Kubo, Teppei Kikuchi
  • Patent number: 10859947
    Abstract: A toner container includes a container body, a shutter, and an operation member. The container body contains a toner and has a discharging port discharging the toner. The shutter opens or closes the discharging port. The operation member is operated between a first operation position making the shutter close the discharging port and a second operation position making the shutter open the discharging port. In an upper face of the container body, a recessed part is provided in an area including an end at a side of the operation member. In the recessed part, an inclined face inclined upwardly from an upstream side to a downstream side in an operation direction when the operation member is operated from the first operation position to the second operation position is provided.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: December 8, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Takeshi Yoshida
  • Patent number: 10852651
    Abstract: An electrostatic-image developer includes a toner and a resin-coated carrier. The toner includes toner particles including a binder resin, a release agent, and a non-ionic surfactant. The resin-coated carrier includes magnetic particles and a resin layer covering the magnetic particles. The resin layer includes inorganic particles having a volume resistivity of 1×100 ?·cm or more and 1×104 ?·cm or less.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: December 1, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yasuaki Hashimoto, Yosuke Tsurumi, Hiroaki Saijo
  • Patent number: 10845733
    Abstract: A developing device comprising a developer transporting unit including a developer inlet through which a developer is reintroduced, a developer outlet through which the developer is discharged, and a developing roller mounted in the developer transporting unit; and a developer circulator including a first connection opening connected to the developer outlet, to receive the developer discharged through the developer outlet, a second connection opening connected to the developer inlet to reintroduce the developer through the developer inlet into the developer transporting unit, a waste opening through which the developer is discarded, and a guide member mounted in the developer circulator to selectively guide the developer received through the first connection opening to the second connection opening or to the waste opening.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: November 24, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jong Hyun Park, Jong Hwa Park, Jang Hyun Son, Dong Geun Lee, Jeong Hyun Lee, Min Su Han
  • Patent number: 10775714
    Abstract: There is provided a developing device including, when viewed in a section perpendicular to a rotational axis of a rotatable developing member, a recessed portion to grip a resin-made regulating blade formed on an upstream side of the regulating blade with respect to a closest position where the regulating blade comes closest to the rotatable developing member in a rotation direction of the rotatable developing member, and a vertical length of the recessed portion in a direction vertical to a straight line passing through the closest position and a rotation center of the rotatable developing member is 0.5 mm or more.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: September 15, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohiro Shiomi, Teruaki Tsurusaki, Shunichi Koga
  • Patent number: 10747145
    Abstract: A drum cartridge is configured to be detachably mounted on an apparatus main body in a state where a toner cartridge is mounted on the drum cartridge. A first shutter and a second shutter are configured such that: when the drum cartridge is mounted onto the apparatus main body in a state where the toner cartridge is mounted on the drum cartridge, the first shutter moves from a first closed position to a first open position and the second shutter moves from a second closed position to a second open position, and when the drum cartridge is detached from the apparatus main body in a state where the toner cartridge is mounted on the drum cartridge, the first shutter moves from the first open position to the first closed position and the second shutter moves from the second open position to the second closed position.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: August 18, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yasumasa Fujii, Takashi Arakawa, Shougo Sato
  • Patent number: 10732541
    Abstract: Toner contained in a toner container is used for replenishing a developing unit via an intermediate hopper. A toner sensor detects emptiness for the toner on an upstream side of a conveyance screw of the intermediate hopper in terms of the toner conveyance direction. Every time the toner sensor detects emptiness, the controller drives a rotation mechanism so that the toner is ejected from the toner container. Based on a drive history of a conveyance-purpose motor, the controller calculates a toner conveyance amount conveyed from the intermediate hopper between a time when the toner sensor detects emptiness and a time when the toner sensor detects emptiness again. When the calculated toner conveyance amount has been equal to or smaller than a first conveyance amount threshold value successively, the controller determines that the toner container is in a nearly empty state.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: August 4, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Tomohisa Soda
  • Patent number: 10698341
    Abstract: A developing device includes an accommodating member, a developer carrying member, a feeding screw provided with a helical blade, a bearing portion, and a guiding portion including an inclined surface. With respect to the developer feeding direction, a position of an edge of a receiving port of the accommodating member on a bearing portion side is closer to the bearing portion than a most-upstream end of the blade with respect to the developer feeding direction. With respect to the developer feeding direction, a position of a downstream end portion of the inclined surface is remoter from the bearing portion than the most-upstream end of the blade with respect to the developer feeding direction.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: June 30, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shunichi Koga
  • Patent number: 10635022
    Abstract: A toner container includes a container body, a first projecting member, a second projecting member, and a plurality of rotational members. The first projecting member and the second projecting member are provided on a bottom surface of the container body, configured to divide an inner space of the container body into a plurality of storage chambers that are juxtaposed in a width direction of the container body, and formed parallel to one another. The plurality of rotational members are rotatably provided, respectively, in the plurality of storage chambers, and juxtaposed in the width direction. Each rotational member includes a rotational shaft body, and a film-like stirring member that is attached to the rotational shaft body and extends in a direction perpendicular to that of the rotational shaft body. A height of the first projecting member from the bottom surface is different from that of the second projecting member.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: April 28, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Akira Ishii
  • Patent number: 10591865
    Abstract: A developer supply container is detachably mountable to a developer receiving apparatus, the developer receiving apparatus including a developer receiving portion provided with a receiving port for receiving a developer and including a portion-to-be-engaged capable of displacing integrally with the developer receiving portion. The developer supply container includes a discharging portion provided with a shutter opening for discharging the developer accommodated in the developer accommodating portion, and an engaging portion. The engaging portion engages with the portion-to-be-engaged with a mounting operation of the developer supply container to displace the developer receiving portion so as to bring the receiving opening into fluid communication with the shutter opening. The engaging portion includes a curved portion having an angle relative to a mounting direction of the developer supply container, the angle decreasing with approach toward an upstream side in the mounting direction.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: March 17, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yohei Gamo, Daijiro Kato, Yusuke Oizumi, Ayatomo Okino
  • Patent number: 10481521
    Abstract: A developing device includes a rotatable developing member configured to carry a developer containing toner and a carrier to a developing position, a first frame configured to accommodate the developer, a second frame mounted on the first frame and configured to cover part of an outer peripheral surface of the rotatable developing member, and a cover portion provided opposite to the rotatable developing member. The following relationship is satisfied: L1?L2+L3, and L2?L3, where with respect to the radial direction of the rotatable developing member, L1 is a minimum of the clearance formed between the second frame and the rotatable developing member, L2 is a minimum of the clearance formed between the rotatable developing member and the cover portion, and L3 is a minimum of the clearance formed between the second frame and the cover portion.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: November 19, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yukihiro Soeta, Masafumi Takahashi, Ryohei Terada, Yushi Sadamitsu, Yasuhiro Shimoi, Yutaka Koga
  • Patent number: 10474067
    Abstract: An example developer unit includes a developer roller. The developer unit also includes a set of electrodes proximate to the developer roller. The set of electrodes form a cavity. The developer unit includes an inlet to the cavity. The inlet is to receive printing fluid. The developer unit includes an insert in the inlet. The insert is to distribute the printing fluid evenly in the cavity.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: November 12, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Sabo, Eric G. Nelson
  • Patent number: 10474059
    Abstract: A developing unit includes an elastic member that is disposed nearer a middle portion in a rotational axis direction in relation to an edge portion seal member disposed between a developing roller and a developer container, in an edge portion of a regulation member in a rotational axis direction, and contacts a confronting surface at a side opposite to a contact portion in a developing blade, wherein the developing roller, the developing blade, and the elastic member are arranged so as to make contact with one another in sequence in a normal direction in the contact portion of the developing roller.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: November 12, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Numata, Naoya Asanuma, Toru Oguma
  • Patent number: 10394163
    Abstract: A toner cartridge is provided. The toner cartridge can be removably mounted on an imaging device. The toner cartridge includes a housing with a toner storage; a toner outlet aligned with a toner inlet on the imaging device; and a switch assembly disposed between the toner outlet and the toner inlet and controlling toner in the toner cartridge to flow from the toner outlet into the toner inlet. The switch assembly slides between a first position to open the toner outlet and a second position to close the toner outlet.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: August 27, 2019
    Assignee: APEX TECHNOLOGY CO., LTD.
    Inventors: Wenchang Zhou, Wanhong Huang
  • Patent number: 10394164
    Abstract: A system and method for urging stray toner away from sealing areas on rotating shafts in electrostatic process units includes a shaft that is associated with a rotating component of the electrostatic process unit such as a toner mixer, a waste auger, a developer, or a photoconductive drum. The shaft includes sealing areas at either end of the shaft that are configured to prevent toner leakage through the sealing areas, and protruding ridges in the sealing areas that encircle the shaft. The protruding ridges are angled relative to the axis of the shaft such that rotation of the shaft causes the protruding ridges to urge stray toner away from the sealing areas. The protruding ridges substantially reduce toner leakage through the sealing areas of rotating shafts of electrostatic process units.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: August 27, 2019
    Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki Kaisha
    Inventors: Don W. Stafford, Donn D. Bryant, Michael W. Lawrence
  • Patent number: 10386785
    Abstract: This invention concerns a cleaning unit which has a photosensitive body and a cleaning frame body supporting the photosensitive body, and which is attachable to and detachable from an apparatus main body of an image forming apparatus configured to form an image on a recording material. In the cleaning unit, which is installed in the apparatus main body so as to adjoin a developing unit including a developing roller that bears toner for developing an electrostatic image formed on the photosensitive body 1, engagement portions (bosses) are disposed on the cleaning frame body so as to protrude toward the developing unit side, and engage with engaged portions (insertion guide portions) disposed on the apparatus main body when the cleaning unit is attached to the apparatus main body.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: August 20, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Teruhiko Sasaki, Toshiaki Takeuchi, Takahito Ueno
  • Patent number: 10338501
    Abstract: An image forming apparatus includes a guiding portion that acts on a shutter member to open and close the shutter member when a unit, including the shutter member, is mounted to and dismounted from a main assembly. The guiding portion includes an opening operating portion that moves the shutter member from the closing position to the opening position in interrelation with an inserting operation of the unit, a closing operating portion that moves the shutter member from the opening position to the closing position in interrelation with an extracting operation of the unit, and a shutter closing portion contacted to the shutter member at a position upstream of the opening operating portion and the closing operating portion, with respect to an inserting direction of the unit relative to the guiding portion, to move the shutter member from the opening position to the closing position in interrelation with the inserting operation.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: July 2, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ran Kudo, Fukashi Hatano
  • Patent number: 10012930
    Abstract: A toner supply unit for use in an image forming apparatus includes a main body, a driving device supplying a driving force, a controller to control the driving force, and a toner bottle containing toner, dismountably mounted to a mounting portion, and including a discharging portion for discharging the toner. A movable shutter member on the toner bottle moves between a closing position and an opening position for opening the discharging portion, and a bottle gear is provided on the toner bottle and receives the driving force. The driving force supplied to the bottle gear when a discharging mechanism first discharges the predetermined amount of toner from the discharging portion after the shutter member moves to the opening position is smaller than the driving force supplied to the bottle gear during moving of the shutter member to the opening position.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: July 3, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takao Nakajima
  • Patent number: 9952534
    Abstract: An image forming apparatus includes an image bearing member, and a developing device including a developing container accommodating a one component developer including toner, and a developer detecting portion configured to detect the developer in the developing container. The developing device develops an electrostatic latent image formed on the image bearing member with the toner. In addition, a developer supply portion supplies the developer into the developing container in accordance with a detection result of the developer detecting portion, and a controller controls developer supply means, in which a developer amount in the developing container when an image ratio of images formed by a predetermined number of image formations is a first image ratio is larger than the developer amount in the developing container when the image ratio of the images formed by a predetermined image formations is a second image ratio which is smaller than the first image ratio.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: April 24, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takahiro Nakase
  • Patent number: 9733591
    Abstract: An image forming apparatus includes a first unit including a toner discharge opening; a second unit including a toner receiving opening, wherein at least one of the first unit and the second unit is detachably mountable to the apparatus; and a shutter for permitting toner flow from the first unit into the second unit when the one unit is set in the apparatus, and the toner discharge opening of the first unit is above the toner receiving opening of the second unit, the shutter being effective to close when the one unit is removed from the main assembly. By inserting the first unit or the second unit into the main assembly, the shutter is moved to a position right above the toner receiving opening of the second unit, and thereafter, the shutter is opened by a further insertion of the one unit.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: August 15, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Chikara Imaizumi
  • Patent number: 9618880
    Abstract: A developing device includes a developer storage chamber configured to store developer to be supplied to the development chamber, a partition configured to separate a development chamber and the developer storage chamber and having an opening allowing communication between the developer storage chamber and the development chamber, and a protruding portion configured to protrude toward the inside of the developer storage chamber from the partition on a downstream side of the opening in the rotation direction of a rotating shaft, and within one turn of rotation of the rotating shaft, a receiving member moves while contacting the protruding portion according to the rotation of the rotating shaft.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: April 11, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yu Fukasawa, Hideki Maeshima, Kuniaki Hirukawa
  • Patent number: 9594331
    Abstract: A powder container includes a container body to contain a powder for use in image formation and a nozzle receiver disposed on one longitudinal end side of the container body. The nozzle receiver includes a shutter having a nozzle insertion opening, into which a conveying nozzle to convey the powder from an inside to an outside of the container body is inserted, and a shutter holder including an inclined face and an opening to communicate with a nozzle opening of the conveying nozzle. The inclined face guides the shutter to rotate around an axis of the conveying nozzle, and the shutter moves between an open position to open the opening of the shutter holder and a closed position to close the opening of the shutter holder in accordance with insertion and removal of the conveying nozzle into the nozzle insertion opening.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: March 14, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Mai Suiseki, Yuuta Tanaka
  • Patent number: 9535370
    Abstract: A developing device includes a developer storage chamber configured to store developer to be supplied to the development chamber, a partition configured to separate a development chamber and the developer storage chamber and having an opening allowing communication between the developer storage chamber and the development chamber, and a protruding portion configured to protrude toward the inside of the developer storage chamber from the partition on a downstream side of the opening in the rotation direction of a rotating shaft, and within one turn of rotation of the rotating shaft, a receiving member moves while contacting the protruding portion according to the rotation of the rotating shaft.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: January 3, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yu Fukasawa, Hideki Maeshima, Kuniaki Hirukawa
  • Patent number: 9459555
    Abstract: An image forming apparatus includes: a body of the image forming apparatus; and a cartridge installable with respect to the body, wherein the cartridge includes a developer accommodating portion accommodating a developer; a developing portion supporting a developer holding member holding the developer thereon; and a shutter configured to be movable between an open position at which the shutter opens a communication port and a closed position at which the shutter closes the communication port. The body includes a detecting section detecting a state of the cartridge which changes as the cartridge is used, and a judging section judging whether or not a cartridge exchange timing for exchanging the cartridge has arrived, based on the state of the cartridge detected by the detecting section; and the shutter moves to the closed position under a condition that the judging section judges that the cartridge exchange timing has arrived.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: October 4, 2016
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yasumasa Fujii, Tatsuo Ogasawara, Hiroki Mori
  • Patent number: 9448504
    Abstract: A roller (1) is provided, which is free from imaging failures even if being used as a developing roller, for example, in combination with a toner including highly spherical toner particles or a lower-melting-point toner. The roller (1) includes a tubular body made of a crosslinking product of a rubber composition containing a crosslinkable rubber component, and having a heat conductivity of 0.4 to 2.0 W/m·K and a Type-A durometer hardness of 50 to 70.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: September 20, 2016
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Hisao Yoshinaga
  • Patent number: 9442426
    Abstract: An image forming apparatus includes a developing apparatus that develops a toner image on a photoreceptor drum. In the developing apparatus, a first transporting member that transports a developer stored in a developer vessel while churning and a second transporting member are provided in parallel with each other, and the developer that is transported by the first transporting member is supplied to a developing roller from the second transporting member. The first transporting member churns a new toner and carrier that are resupplied with the developer. In the second transporting member, the developer that a waste toner passing a developing process is churned and the developer that the new toner being resupplied is churned are face and collide with each other. Accordingly, the new toner gets into the developer.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: September 13, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Shuichi Akedo
  • Patent number: 9436125
    Abstract: A powder container, storing powder used for an image forming apparatus, includes a container body, an opening, and a shutter. The opening discharges or introduces the powder, and the shutter opens and closes the opening. The shutter includes a first engaging portion and a second engaging portion. The first engaging portion engages a shutter switch, provided to an apparatus body of the image forming apparatus, in a first trajectory. The second engaging portion engages the shutter switch in a second trajectory different from the first trajectory. The shutter approaches and contacts the shutter switch in the first trajectory or the second trajectory to open and close the opening.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: September 6, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Tatsuo Fukushima, Masanari Fujita
  • Patent number: 9348306
    Abstract: A process cartridge includes a first cartridge and second cartridge. The first cartridge includes a first wall having a first opening, a first shutter configured to open and close the first opening, and a first operating portion configured to operate together with the first shutter. The second cartridge is mountable onto and demountable from the first cartridge and contains a developer. The second cartridge includes a second wall facing the first wall and having a second opening corresponding to the first opening, a second shutter configured to open and close the second opening, and a second operating position configured to operate together with the second shutter. The first cartridge further includes a third operating portion. When the second cartridge is mounted into the first cartridge, the first operating portion and the third operating portion operate together through the second operating portion.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: May 24, 2016
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shougo Sato
  • Patent number: 9261818
    Abstract: A toner cartridge for an electrophotographic image forming device according to one example embodiment includes a housing having a reservoir for storing toner. An outlet port is positioned on the housing for transferring toner out of the toner cartridge. A first vent has a first inlet opening positioned to receive air from outside the housing, a first outlet opening positioned to exit the received air into the reservoir, and a first one-way valve that permits airflow through the first vent from the first inlet opening to the first outlet opening and prevents airflow through the first vent from the first outlet opening to the first inlet opening. A second vent is positioned to introduce air received at the outlet port into the reservoir.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: February 16, 2016
    Assignee: Lexmark International, Inc.
    Inventors: Michael Craig Leemhuis, James Richard Leemhuis
  • Patent number: 9229370
    Abstract: A toner bottle cap has a fixed member and a slide member. The fixed member is stationary relative to a toner bottle and defines a first flow passage. The slide member defines a second flow passage coaxially adjoining the first flow passage in a toner outflow direction and having a peripheral wall in sealing contact with a peripheral wall of the fixed member. The slide member is slideable relative to the fixed member in axial direction of the flow passages. One of the members has a wall part that restricts the cross-section of the flow passage of the one member and defines a toner outflow opening. The other of the members has a stop member projecting axially towards the outflow opening and closes the same when the slide member is in a closed position and opens the outflow opening when the slide member is slid in the toner outflow direction.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: January 5, 2016
    Assignee: Oce-Technologies B.V.
    Inventors: Otto W. Salomons, Joseph A. Schulkes
  • Patent number: 9229423
    Abstract: An image forming apparatus detecting container's dismounting. A drive unit rotates the container for replenishing toner to a development unit. An output unit outputs a first signal while a predetermined portion of the container is detected, and outputs a second signal while the predetermined portion is not detected. A decision unit decides a count of changes from the second signal to the first signal based on a toner replenishing amount. A detection unit detects dismounting of the container in a case where the first signal is changed to the second signal during not rotating. The controller stops the rotation in a case where the count of changes reaches the count decided, controls the drive unit to output the first signal in a case where containers should be exchanged, and does not control the drive unit to output the first signal in a case where containers should not be exchanged.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: January 5, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takayuki Iikura
  • Patent number: 9229422
    Abstract: A developer receiving apparatus includes a receiving portion displacably provided and configured to receive developer supplied from a supply container. The receiving portion including a receiving port configured to receive the developer and a first engaging portion engageable with the supply container to displace the receiving portion toward the supply container so as to connect the receiving portion with the supply container in a mounting operation. A covering member is displaceably provided in the receiving apparatus and covers an upper part of the receiving port. The covering member takes a closing position closing the upper part of the receiving port when the supply container is not mounted, and includes a second engaging portion engageable with the receiving portion to displace the covering member to a retracted position retracted from the closing position to permit the receiving portion to connect with the supply container in the mounting operation.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: January 5, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tatsuyuki Yamamoto
  • Patent number: 9213263
    Abstract: A developer accommodating container for accommodating a developer includes a flexible container including an injection port for permitting entrance of the developer and a plurality of openings for permitting discharge of the developer, and a sealing member mounted on the flexible container in a state in which the sealing member seals the plurality of openings and capable of exposing the plurality of openings by being moved in an unsealing direction. The plurality of openings are provided at different positions along an axial direction perpendicular to the unsealing direction in which exposure of the plurality of openings advances.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: December 15, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroomi Matsuzaki, Masaaki Matsushita, Tatsuo Fujisaki, Masaki Furutani
  • Patent number: 9075347
    Abstract: Provided is a developing device including an accommodating unit that contains a developer, a transport member that holds the developer on an outer surface and transports the developer outside from the accommodating unit, a layer regulating member that faces the outer surface of the transport member with a gap, extends in a direction intersecting a direction in which the developer is transported, and regulates a layer thickness of the developer, and a removal member that is inserted into the gap, moves along the direction in which the layer regulating member extends, and removes the developer from the gap.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: July 7, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masahiro Uchida, Manabu Furuki, Masashi Ikeda, Tatsuhiro Igarashi, Teppei Yawada
  • Patent number: 9057984
    Abstract: A powder container includes: a housing unit that is horizontally elongated, that contains powder, and that has at least part thereof being deformable; and a discharging unit that is attached to one end of the housing unit in a longitudinal direction. The discharging unit includes a discharge opening through which the powder in the housing unit is discharged outside and a rotary shutter that is provided inside the discharge opening and that opens and closes the discharge opening by rotating about a rotating shaft that is arranged perpendicular to the longitudinal direction of the housing unit.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: June 16, 2015
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Keiichi Yoshida, Shunji Katoh, Hiroshi Ikeguchi, Shinji Tamaki
  • Patent number: 9057983
    Abstract: A developer container removably installable in an apparatus body of an image forming apparatus includes a container body to contain developer, a cap connectable to the container body, the cap including a supply opening, and a flange projecting beyond an outer circumferential surface of the cap in a radial direction extending from a center of a cross section of the container body. The flange is formed along a circumference of the container body and provided between the container body and the cap.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: June 16, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaki Takahashi, Kunihiro Ohyama, Hideki Kimura
  • Patent number: 9046820
    Abstract: A toner supply container includes a toner container body including a cylindrical portion and an opening, and a sealing member provided at one axial end portion of the container body. The sealing member is movable relative to the container body in an axial direction and includes a sealing portion provided at a side adjacent the container body and a coupling portion provided at a side remote from the container body. The coupling portion includes a supporting portion provided on the sealing portion, and an engaging portion provided at a free end of the supporting portion, and a displacing force receiving portion is provided on the supporting portion at a position closer to the container body than the engaging portion.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: June 2, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yusuke Yamada, Yutaka Ban, Katsuya Murakami, Fumio Tazawa, Hironori Minagawa
  • Publication number: 20150147096
    Abstract: A toner container that is detachably attached to a main body of an image forming apparatus such that a longitudinal direction of the toner container is parallel to a horizontal direction includes: a cylindrical container body that has an opening on one end thereof in the longitudinal direction, and is configured to convey toner contained therein toward the opening; a cap portion into which the opening of the container body is inserted, and which includes a toner outlet at a bottom portion thereof for discharging toner discharged from the opening of the container body to the outside of the toner container in a vertically downward direction; and a shutter member that is held on the bottom portion of the cap portion, and moves along an outer periphery of the cap portion to thereby open and close the toner outlet, wherein the cap portion is formed by integral molding.
    Type: Application
    Filed: February 3, 2015
    Publication date: May 28, 2015
    Inventors: Eisuke HORI, Noriyuki KIMURA, Nobuo TAKAMI, Yuji SUZUKI, Hideki KIMURA, Kenji KIKUCHI, Junji YAMABE, Masato SUZUKI
  • Patent number: 9037051
    Abstract: A toner cartridge for use in an imaging device according to one example embodiment includes a housing having a reservoir enclosed therein for holding a quantity of toner. The housing has an exit port in communication with the reservoir for exiting toner from the toner cartridge. A shutter is mounted on the housing and has a toner path through the shutter. The toner path includes an exit opening. The shutter is moveable between a closed position where the toner path is closed to the exit port preventing toner from exiting the toner cartridge and an open position where the exit opening is open to the exit port allowing toner to exit the toner cartridge. The shutter has an air duct therethrough separated from the toner path. The air duct has a first end in fluid communication with the exit port when the shutter is in the open position.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: May 19, 2015
    Assignee: Lexmark International, Inc.
    Inventors: James Richard Leemhuis, Gary Neal Hackney
  • Patent number: 9031474
    Abstract: A powder feeding device includes a powder container, a feeding tank in communication with the powder container, a negative pressure room in communication with the feeding tank via a suction port communicating tube; an air suction device in communication with the negative pressure room via a negative pressure room communication tube; a suction port opening and closing unit that opens and closes the suction port communicating tube; a negative pressure room opening and closing unit that opens and closes of the negative pressure room communication tube; an output port opening and closing unit that opens and closes an output port of the feeding tank; and a controller that performs negative pressure generation control, powder supply control, and powder discharge control. Further, the controller simultaneously starts the negative pressure generation control and the powder discharge control.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: May 12, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukio Otome, Masashi Nakayama, Hiroyuki Mabuchi
  • Patent number: 9031451
    Abstract: An example toner cartridge includes a reservoir for containing toner and an exit port in fluid communication with the reservoir. A shutter is positioned at the exit port and movable between an open position and a closed position. A first linkage member is operatively connected to the shutter to open the shutter upon being actuated by a first engagement feature. A second linkage member is pivotally attached to a side wall of the housing and biased toward a home position. A third linkage member is movable with the second linkage member. When the second linkage member is in the home position, the third linkage member is in a blocking position preventing the first linkage member from opening the shutter. When the second linkage member pivots away from the home position, the third linkage member moves to a non-blocking position permitting the first linkage member to open the shutter.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: May 12, 2015
    Assignee: Lexmark International, Inc.
    Inventors: Darrell Stephen Rulon, John Andrew Buchanan, James Anthany Carter, II, Gregory Alan Cavill, Mark Duane Foster, Benjamin Keith Newman, Matthew Lee Rogers, Keith Seaman, Christopher Gene Vowels, Tyler Frederick Williams
  • Patent number: 9020374
    Abstract: A developer transport unit which includes an intra-vessel transporting device to transport developer in a developer storage vessel to an ejection unit. The developer storage vessel is detachably attached at one end to an ejection unit. There is a transport/supply device to transport the developer from the ejection unit to a sub-storage vessel, and an intermediate-developer amount detector to obtain an amount of developer present in the sub-storage vessel. Further, there is a control unit to control driving of the intra-vessel transporting device and the transport/supply device.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: April 28, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshihiro Hamano, Shigeru Tosa
  • Publication number: 20150098733
    Abstract: A toner cartridge for use in an image forming device according to one example embodiment includes a housing having a reservoir for containing toner therein. The housing has an exit port in fluid communication with the reservoir. A shutter is positioned at the exit port that is movable between an open position and a closed position. The shutter is biased toward the closed position. A linkage is operatively connected to the shutter to open the shutter upon being actuated by a first engagement feature in the image forming device. An interlock is operatively engaged with the linkage and biased toward a locked position preventing the linkage from opening the shutter. The interlock is movable to an unlocked position that is disengaged with the linkage when the interlock is actuated by a second engagement feature in the image forming device permitting the linkage to open the shutter.
    Type: Application
    Filed: December 16, 2014
    Publication date: April 9, 2015
    Inventors: Benjamin Keith Newman, Matthew Lee Rogers, Christopher Gene Vowels
  • Patent number: 9002240
    Abstract: The present application discloses a developing device including a housing having a connection surface to which the container connects. The connection surface is provided with a feed port for feeding the developer. The developing device includes a shutter mechanism configured to selectively open and close the feed port. The shutter mechanism includes a shutter piece, which moves between a closing position for closing the feed port and an opening position for opening the feed port, and a squeezing mechanism, which protrudes from the shutter piece situated in the closing position to squeeze the developer into the housing through the feed port.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: April 7, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Tamotsu Shimizu, Takahisa Nakaue, Teruhiko Nagashima, Takashi Morita
  • Patent number: 9002241
    Abstract: An image forming apparatus includes an attachment member and a toner case. The toner case has a discharge port openable and closable by a shutter mechanism. The shutter mechanism has a first shutter member and a second shutter member. The first shutter member closes the discharge port in a condition in which the toner case is detached from the attachment member, and opens the discharge port in a condition in which the toner case is attached to the attachment member. The second shutter member covers the back side edge portion of the communication port with which the discharge port is communicated in a condition in which the toner case is detached from the attachment member, and exposes the back side edge portion of the communication port in a condition in which the toner case is attached to the attachment member.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: April 7, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Tatsuya Yamanaka
  • Patent number: 9002242
    Abstract: A developing apparatus includes a grooved developer carrying member configured to carry a developer to a developing region opposing an image bearing member, and a regulating member configured to regulate an amount of the carried developer. The regulating member includes a guide portion configured to guide the developer to a regulating position in which the regulating member is closest to the developer carrying member, with the guide portion being located on an upstream side with respect to the regulating position in a rotation direction of the developer carrying member and being shaped so that a gap between the guide portion and a tangent of the developer carrying member at the regulating position becomes narrower toward a downstream side in the rotation direction.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: April 7, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yusuke Ishida
  • Patent number: 8995888
    Abstract: An image forming apparatus includes a toner container and a development device. The toner container includes a container main body being provided with a discharge port configured to discharge a toner. The development device includes a development device main body being provided with a replenishment port configured to receive a toner discharged from the discharge port and a shutter configured to open/close the replenishment port. The shutter opens/closes the replenishment port by turning along the outside face of the development device main body.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: March 31, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Daisuke Eto
  • Patent number: 8989633
    Abstract: An image forming apparatus includes an image bearing member; a developing device; a sealing member for unsealably sealing a space containing an initial developer; a first supplying device communicatable with the space to supply the developer into the developing device; a second supplying device for supplying the developer into first supplying device; an unsealing mechanism for unsealing the sealing member; and a controller capable of executing an operation in an unsealing mode in which the unsealing mechanism is operated, after supplying operation of second supplying device, to unseal the sealing member.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: March 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takao Nakajima