Having Internal Rotary Member Patents (Class 399/263)
  • Patent number: 11372348
    Abstract: A developing device includes a frame having an accommodation chamber where a developer is accommodated, and a replenishing port replenishing a developer to the accommodation chamber from outside, and a stirring member stirring the developer in the accommodation chamber. The stirring member includes a rotating shaft portion rotatably supported by the frame and a sheet member having one end fixed to the rotating shaft portion and another end as a free end and being rotatable with the rotating shaft portion. When the stirring member is rotated, the free end of the sheet member is capable of contacting an inner wall surface of the accommodation chamber in which the replenishing port is formed, and a through hole penetrating in a thickness direction of the sheet member is provided in a region of the sheet member that comes into contact with the inner wall surface of the accommodation chamber.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: June 28, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Harunobu Maeda, Masahito Kato, Kodai Hayashi, Takuya Oka, Yu Akiba, Masato Tanabe, Koichi Ooishi, Takatoshi Hamada, Yuichiro Hirata
  • Patent number: 11269288
    Abstract: A process cartridge includes: a drum cartridge including a photosensitive drum; and a toner cartridge which is mountable on the drum cartridge and stores toner, wherein the drum cartridge includes: a cleaner configured to collect waste toner on the photosensitive drum; a waste toner conveyance tube configured to convey the waste toner collected by the cleaner; and a developing unit which includes a developing roller configured to supply toner to the photosensitive drum and is swingable about a swing axis with respect to the photosensitive drum, and wherein the toner cartridge has a waste toner storing chamber for storing the waste toner conveyed by the waste toner conveyance tube.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: March 8, 2022
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shougo Sato
  • Patent number: 11181852
    Abstract: Toner cartridge includes a housing, an agitator, an auger, a first protrusion, and a second protrusion. The housing includes a first toner accommodating portion having and a second toner accommodating portion. The auger is rotatable about a second axis extending in a first direction and is configured to convey toner from a first toner accommodating portion to the second toner accommodating portion. The first protrusion is positioned at a first side of the second toner accommodating portion. The first protrusion extends in the first direction. The second protrusion is positioned at a second side of the second toner accommodating portion and extends in the first direction.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: November 23, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hideshi Nishiyama, Keita Shimizu
  • Patent number: 11175605
    Abstract: A powder container includes a rotator configured to rotate on a rotation axis as a rotation center. The rotator includes a flap configured to contact and rub against an inner wall surface of the powder container. The flap includes a base extending from the rotation axis as the rotation center in a radial direction and a bent portion bent from the base in a direction intersecting the radial direction and toward downstream in a rotation direction of the rotator.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: November 16, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventor: Hiroaki Nieda
  • Patent number: 11016417
    Abstract: A developing apparatus includes a developer container to accommodate a developer including toner and carrier, and a conveyance screw having a helical blade spirally formed on a rotation shaft to convey the developer. The developer container has a developer discharge port at a position facing the helical blade to discharge the developer from the developer container, wherein the helical blade rotates to direct from below to above in a vertical direction at a position facing the developer discharge port. The developer discharge port has a lower edge in the vertical direction, with the lower edge having a region downstream in a developer conveyance direction from a lowermost position in the lower edge in the vertical direction, and the region in a position above the lowermost position in the vertical direction, wherein the region inclines upward as the lower edge goes downstream in the developer conveyance direction.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: May 25, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tomoyuki Sakamaki
  • Patent number: 11003126
    Abstract: A waste powder recovery device includes: a recovery container that houses waste powder and has an inlet through which the waste powder is received; and a conveying component that is cantilever-supported in such a way as to swing freely inside the recovery container, the conveying component having a first conveying section with which the waste powder brought in through the inlet is conveyed with a first conveying force within the recovery container, and a second conveying section with which the waste powder is conveyed with a second conveying force that is larger than the first conveying force.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: May 11, 2021
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yusuke Sakai, Hirohisa Hoshino, Tadashi Suto
  • Patent number: 10935905
    Abstract: A powder container contains powder and is attached to an image forming apparatus including: a conveying nozzle to convey the powder; a powder receiving hole of the conveying nozzle to receive the powder from the powder container; an apparatus main-body gear to transmit a driving force to the powder container; and a container receiving section including the conveying nozzle and receiving the powder container. The powder container includes: an opening at one end of the powder container in a longitudinal direction; a nozzle receiver at the opening to receive the conveying nozzle; a conveyor to convey the powder; and a container gear to drive the conveyor by meshing with the apparatus main-body gear. The container gear is to mesh with the apparatus main-body gear at a position closer to the opening than the powder receiving hole in the longitudinal direction. The opening is to mate with the container receiving section.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: March 2, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kenji Kikuchi, Shinji Tamaki, Hiroshi Hosokawa, Shunji Katoh, Michiharu Suzuki, Hideo Yoshizawa, Shingo Kuboki
  • Patent number: 10915042
    Abstract: A toner conveyance device includes a housing and a conveyance member. The conveyance member includes a conveyance shaft and a conveyance blade. The conveyance blade includes a first blade part, a second blade part and a third blade part. The first blade part is formed along a predetermined spiral direction. The second blade part is connected to the first blade part on a downstream side of the first blade part in a conveyance direction and extends along the conveyance direction. The third blade part is connected to the second blade part on a downstream side of the second blade part in the conveyance direction and formed along a spiral direction opposite to the spiral direction of the first blade part. A boundary between the first blade part and the second blade part is contained within a range of a toner discharge port in the conveyance direction.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: February 9, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Takeshi Iketani
  • Patent number: 10871730
    Abstract: A developer container includes a developer chamber configured to store a developer, a discharge port configured to discharge the developer in the developer chamber to a developing device, a developer conveyance path configured to transport the developer in the developer chamber to the discharge port, a supply port configured to supply the developer in the developer chamber to the developer conveyance path, a conveyor disposed in the developer conveyance path and configured to transport the developer to the discharge port, a partition between the developer conveyance path and the developer chamber, and a communication port disposed in the partition between the discharge port and the supply port and connecting the developer conveyance path with the developer chamber.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: December 22, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Emi Kita, Hiroaki Nieda
  • Patent number: 10831128
    Abstract: An image forming apparatus includes a control portion, and in a first period from when use of a developing apparatus is started until when an amount of developer in a developing device reaches a predetermined amount larger than an amount of initial developer, when an amount of developer supplied from a supplying portion through a single supplying operation in an image forming operation is larger than a predetermined supplied amount, the control portion interrupts the image forming operation and drives a conveyance portion for a predetermined time. In a second period after the amount of the developer reaches the predetermined amount, when an amount of the supplying developer supplied through a single supplying operation in the image forming operation is larger than the predetermined supplied amount, the control portion continues the image forming operation without interruption.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: November 10, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yusuke Ishida, Takanori Iida, Masashi Wakisaka, Katsuya Nose, Yuta Okuyama
  • Patent number: 10642190
    Abstract: A toner cartridge includes a casing, an auger rotatable about an axis extending in a first direction, an auger gear rotatable with the auger, an agitator aligned with the auger in a second direction, an agitator gear rotatable with the agitator, and a detection gear positioned opposite to the auger gear with respect to the agitator gear in the second direction. The detection gear is rotatable from a first position to a second position. At the first position, a through-hole or a cutout of the detection gear is positioned farther away from the auger than an outer surface of another end portion of the casing in the second direction is. At the second position, a portion of the detection gear different from the through-hole or the cutout is positioned farther away from the auger than the outer surface of the another end portion of the casing is.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: May 5, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hideshi Nishiyama, Naoya Kamimura, Tomonori Watanabe, Yasuo Fukamachi, Shinya Kusuda, Tomoya Yamamoto
  • Patent number: 10642188
    Abstract: A toner case includes a case main body, a conveying member and a transmitting member. The case main body is configured to store a toner and has a discharge port for the toner. The conveying member is configured to rotate around a rotation axis extending along a rotation axis direction and to convey the toner in the case main body to the discharge port. The transmitting member is configured to transmit rotation to the conveying member. The conveying member is movable along the rotation axis direction with respect to the transmitting member between a coupling position where the conveying member is coupled to the transmitting member and a release position where a coupling of the conveying member to the transmitting member is released.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: May 5, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hideki Ishida
  • Patent number: 10627743
    Abstract: A powder container includes an inner wall, a rotation axis, and a flap to rotate about the rotation axis. The flap includes a comb-teeth tip portion to contact and slide along an inner wall surface of the powder container. The comb-teeth tip portion has teeth in which a distance from a root between adjacent teeth to the rotation axis when the comb-teeth tip portion does not contact the inner wall surface is longer than a shortest distance from the inner wall surface to the rotation axis.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: April 21, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroaki Nieda
  • Patent number: 10180640
    Abstract: Toner cartridge includes a housing, an agitator, an auger, a first protrusion, and a second protrusion. The housing includes a first toner accommodating portion having and a second toner accommodating portion. The auger is rotatable about a second axis extending in a first direction and is configured to convey toner from a first toner accommodating portion to the second toner accommodating portion. The first protrusion is positioned at a first side of the second toner accommodating portion. The first protrusion extends in the first direction. The second protrusion is positioned at a second side of the second toner accommodating portion and extends in the first direction.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: January 15, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hideshi Nishiyama, Keita Shimizu
  • Patent number: 10146156
    Abstract: An image forming apparatus includes a photosensitive drum, a developing device including a developing roller and a developing frame including a toner receiving port, and a toner cartridge including a toner accommodation part and a conveyance device configured to convey toner from the toner accommodation part toward the developing device. The conveyance device includes a coupling tube and a shutter. The coupling tube includes a toner supply port faceable the toner receiving port, is coupleable to the developing device and is movable with respect to the toner accommodation part at a state where the coupling tube is coupled to the developing device and the toner supply port faces the toner receiving port. The shutter is movable between an opening position at which the toner supply port is opened with the coupling tube being coupled to the developing device and a closed position.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: December 4, 2018
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shougo Sato
  • Patent number: 10067442
    Abstract: A developer storage container includes a container body having a developer discharge port, a shaft body extending in a first direction and rotatably disposed in the container body, and a stirring member to be attached to the shaft body. The stirring member is made of a flexible film-like member and stirs the developer stored in the container body by rotating according to the rotation of the shaft body. The stirring member includes an attaching portion serving as an area part for attachment to the shaft body, and a stirring piece having a base portion extending from the attaching portion toward the inner peripheral surface of the container body in a second direction perpendicular to the first direction and an extending portion extending from the base portion in a third direction intersecting with the second direction to approach the developer discharge port.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: September 4, 2018
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Daisuke Eto
  • Patent number: 10042287
    Abstract: An image forming apparatus includes a toner case and an attachment part. The toner case includes a case main body, a rotator, a transmitter and a moving mechanism. The rotator rotates around a rotation axis. At least apart of the rotator is stored in the case main body. The transmitter is arranged outside the case main body and has a transmitting coupling. The attachment part includes a manipulation member and a driving coupling. As the manipulation member moves from a first manipulating position to a second manipulating position in a state where the toner case is attached to the attachment part, the moving mechanism moves the transmitter from a first position to a second position which is arranged at an outside of the first position in a rotation axis direction of the rotator, and the transmitting coupling is coupled to the driving coupling.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: August 7, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Daisuke Mimura, Tomohiro Watatani
  • Patent number: 9996024
    Abstract: A toner case includes a case main body and a rotating member. The rotating member is rotatable around a rotation axis. A side wall of the case main body has a base part, a recess part and a bearing part. The base part is formed so as to cross a direction of the rotation axis. The recess part is recessed inward in the direction of the rotation axis with respect to the base part. The bearing part protrudes outward in the direction of the rotation axis from the recess part and supports one end portion of the rotating member in the direction of the rotation axis. An outer end portion in the direction of the rotation axis of the bearing part is positioned closer to an inner side in the direction of the rotation axis than an outer face of the base part.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: June 12, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Daisuke Eto
  • Patent number: 9933725
    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: February 27, 2017
    Date of Patent: April 3, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yu Fukasawa, Hideki Maeshima, Kuniaki Hirukawa
  • Patent number: 9927737
    Abstract: There is provided a developing apparatus including a conveyance member configured to bend in contact with an inner wall of a conveyance chamber and convey developer, a portion configured to bend the conveyance member, and a first releasing portion configured to release the bending of the conveyance member, a deforming portion configured to bend the conveyance member moved and released from the first releasing portion, and a second releasing portion configured to release the bending of the conveyance member on the downstream side of the deforming portion in the rotational direction of the conveyance member.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: March 27, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuyoshi Yoshida, Shuhei Kawasaki, Hideki Kakuta, Akihiro Fujiwara
  • Patent number: 9835979
    Abstract: A developing device includes a developing container, a first stirring member, a second stirring member, and a developer discharge port. The developing container has a first and a second transport chamber. The first stirring member has a rotary shaft and a first helical blade. The second stirring member has a rotary shaft and a second helical blade. Through the developer discharge port, surplus developer inside the developing container is discharged. On the second stirring member, a restricting portion for restricting movement of developer toward the developer discharge port is formed downstream of the second helical blade. The restricting portion has two or more turns of a restricting blade wound in the direction opposite to the second helical blade, and the restricting blade has an increasingly large outside diameter from upstream to downstream with respect to the developer transport direction inside the second transport chamber.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: December 5, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Koji Suenami
  • Patent number: 9746798
    Abstract: A developing device includes: a casing having a partitioning wall, a toner chamber, and a developing chamber positioned above the toner chamber; a photosensitive drum; a developing roller; a supply roller; first and second conveying members. The developing roller, the supply roller, and the second conveying member are accommodated in the developing chamber. The first conveying member is accommodated in the toner chamber. The partitioning wall has a supply opening and a discharge opening for providing communication between the toner chamber and the developing chamber. The supply and discharge openings are positioned outward of the supply roller in an axial direction of the photosensitive drum. The first conveying member conveys the toner accommodated in the toner chamber into the developing chamber through the supply opening. The second conveying member conveys the toner supplied by the first conveying member from the supply opening to the discharge opening in the axial direction.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: August 29, 2017
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shougo Sato
  • Patent number: 9727020
    Abstract: In a developer conveyance device, a spiral screw is arranged inside a spiral coil such that the spiral coil and the spiral screw are both rotated. Accompanied by rotation of the spiral coil, even if waste toner tries to pass through the spiral coil and move in a vertical direction, movement of the waste toner in the vertical direction is blocked by the spiral screw, such that the waste toner is conveyed by the spiral screw. Since the waste toner hardly passes through the spiral coil in the vertical direction, the waste toner is also conveyed by the spiral coil.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: August 8, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hideaki Kadowaki
  • Patent number: 9696657
    Abstract: A removable device to be detachably attached to an apparatus main body includes a container body to store developer; a discharge opening to discharge the developer inside the container body; an internal shutter to open and close the discharge opening; an external shutter to open and close the discharge opening, the external shutter being disposed at an outer side with respect to the internal shutter, wherein the internal shutter and the external shutter are configured to be driven separately.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: July 4, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomohiro Kubota, Naoki Nakatake, Yoshiyuki Shimizu, Shoh Tsuritani, Manabu Hamada, Masato Tsuji, Masanari Fujita
  • Patent number: 9535371
    Abstract: A toner container includes a container main body, a cylindrical portion, an opening/closing member, and a conveyance member. Container main body includes a storing chamber. Opening/closing member is provided in a inner space of cylindrical portion and, operates to open and close a toner discharge outlet of cylindrical portion. Conveyance member includes rotation shaft and blades along rotation shaft and when rotated, allows blades to convey the toner that is present inside storing chamber and the inner space toward toner discharge outlet. The plurality of blades include a first blade and a second blade. First blade is disposed in storing chamber at a position near a boundary between storing chamber and the inner space and is larger in outer diameter than the other blades. Second blade is disposed in the inner space and is larger than first blade in inclination angle with respect to rotation shaft of conveyance member.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: January 3, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hiroaki Kitagawa, Takashi Morita
  • Patent number: 9310713
    Abstract: In a developer container or the like, developer is conveyed efficiently by utilizing a projecting portion included in a transmitting member and another projecting portion. A velocity vector that is generated at a free end of a conveying member and is oriented upward becomes largest during a period from when the conveying member having been in contact with the projecting portion is released from the projecting portion until when the free end of the conveying member comes into contact with a storage chamber.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: April 12, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideki Maeshima, Kuniaki Hirukawa, Shuichi Gofuku, Shuhei Kawasaki, Hisashi Taniguchi, Kodai Hayashi, Yoshihiro Mitsui
  • Patent number: 9304447
    Abstract: Image forming apparatus includes: main body casing having first and second side walls opposite to each other, and upper portion having opening; top cover swingably supported on the upper portion of the main body casing at a position near the second side wall and configured to openably close the opening; endless belt disposed below the top cover and having first end portion closer to the first side wall and second end portion closer to the second side wall; photoconductor drum disposed under the endless belt; development unit disposed under the photoconductor drum and configured to supply developer to the photoconductor drum; and fixing device disposed above the second end portion of the endless belt. The endless belt is configured to be swingable about axis of rotation provided near the second side wall such that the first end portion of the endless belt is swingable in an upper-lower direction.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: April 5, 2016
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Toshio Furukawa
  • Patent number: 9235162
    Abstract: A developer storage container includes a container main body, a tubular portion projecting from the container main body, and a rotary member extending from the container main body to the tubular portion. The rotary member includes a first section located in the container main body and a second section located in the tubular portion. A first conveying member for conveying developer in a first conveying direction is arranged on the second section of a rotary shaft, and a second conveying member for conveying the developer in a second conveying direction is arranged radially outwardly of the first conveying member around the first section. A first flexible member radially extending to a side outward of the second conveying member and a second flexible member radially extending to a side outward of the second conveying member and having a shorter length than the first flexible member are mounted on the rotary shaft.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: January 12, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Ikuo Makie, Kenichi Tamaki, Minoru Wada, Shizuka Okada, Tamotsu Shimizu
  • Patent number: 9182703
    Abstract: A toner container comprises a container main body having a toner discharge port, a toner conveying section having an auger and a mixer, a handle at a first end portion of the container main body, a toner filling port at a second end portion of the container main body, a cap covering the toner filling port, a cylindrical supporting section positioned at a central part of the cap, a first gear positioned at one end portion of the mixer and configured to rotate the mixer and having a rotary axis inserted into the cylindrical supporting section, a coupling member configured to transmit rotation force from a driving device to the auger, and a second gear which rotates with the coupling member and is engaged with the first gear so that the first gear rotates when the driving device transmits rotation force from the driving device.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: November 10, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Tsutomu Sato
  • Patent number: 9164426
    Abstract: A toner container according to one aspect of the present disclosure includes a container body, a rotating member, a conveying member, a film member, and a stepped portion. Container body can store toner thereinside. Container body includes toner conveying path having supply opening through which toner is supplied to the outside. Rotating member is rotatably provided in container body. Rotating member rotates to scoop, into toner conveying path, toner stored in container body. Conveying member is rotatably provided in toner conveying path. Conveying member rotates to convey, toward the supply opening, toner in toner conveying path. Film member is mounted to an inner wall which extends from toner conveying path to an inner side of container body, and projects toward a region in which rotating member rotates. Stepped portion is provided in the inner wall. Stepped portion forms, between stepped portion and film member, a space having a predetermined height.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: October 20, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Tatsuhiko Yoshii, Koji Murata
  • Patent number: 9164422
    Abstract: A developer storage body includes a storage portion for storing a developer, an agitation member for agitating the developer stored in the storage portion, and a swing member that swings in the storage portion by contact with the agitation member. A contact portion is provided at a first end portion of the swing member. The contact portion contacts the agitation member. A fixed portion and a swing portion are provided at a second end portion of the swing member. The fixed portion is fixed to the storage portion. The swing portion swings in the storage portion.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: October 20, 2015
    Assignee: OKI DATA CORPORATION
    Inventor: Yukiyoshi Oda
  • Patent number: 9134692
    Abstract: An image forming apparatus includes a main casing, a supporting frame movable relative to the main casing in a first direction between an internal position and an external position, and a developer container supported in the supporting frame. The main casing includes first and second walls extending in the first direction and opposing each other in a second direction orthogonal to the first direction. The supporting frame includes first and second plates opposing the first and second walls in the second direction respectively. The developer container includes: a first chamber disposed between the first plate and the second plate; a second chamber for storing developer and disposed between the first wall and the first plate; a third chamber for communicating between the first chamber and the second chamber; and a conveying portion for conveying the developer in the second chamber to the first chamber via the third chamber.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: September 15, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shougo Sato
  • Patent number: 9128415
    Abstract: A toner container for use with an image forming apparatus which includes a horizontally mounted toner body mounted within the image forming apparatus, a toner outlet to discharge toner in a downward direction, and a shutter to open and close the toner outlet which moves along a first and second rail. The second rail is disposed downstream of the first rail in the insertion direction of the toner body and parallel to the length of the toner body. The longitudinal length of the first rail is smaller than the longitudinal length of the second rail.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: September 8, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Nobuo Takami, Noriyuki Kimura, Eisuke Hori, Hideki Kimura, Kenji Kikuchi, Yuji Suzuki
  • Patent number: 9122197
    Abstract: A developer storage body includes a storage portion in which a developer is stored, a supplying opening through which the developer is ejected, and a conveying member provided in the storage portion. The conveying member is rotatable about a rotation axis so as to convey the developer to the supplying opening. The supplying opening is provided with a plurality of slits extending in a direction substantially perpendicular to the rotation axis of the conveying member.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: September 1, 2015
    Assignee: Oki Data Corporation
    Inventor: Yukiyoshi Oda
  • Patent number: 9063507
    Abstract: A development device includes a developer storage chamber configured to store a developer, a developer carrying member configured to carry the developer, a light transmission member capable of transmitting detection light for detecting a remaining amount of a developer in the developer storage chamber, a shaft member which is provided to the developer storage chamber and configured to rotate, a conveyance unit which is provided to the shaft member and configured to convey the developer, and a cleaning unit which is provided to the shaft member and configured to rub and clean the light transmission member, wherein the shaft member includes an opening.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: June 23, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuichi Gofuku, Yu Fukasawa, Hiroki Shimizu
  • Patent number: 9052638
    Abstract: A cartridge includes: a toner accommodating frame including a toner feeding opening communicating with a toner feeding chamber and a toner filling port; a rotatable member; and a toner seal member. The toner seal member includes a first fixed portion and a second fixed portion which are fixed on the toner accommodating frame at an edge of the toner feeding opening along a longitudinal direction of the toner feeding opening, and includes a third fixed portion fixed on the rotatable member. With rotation of the rotatable member, the first fixed portion of the toner seal member is peeled off from a fixing portion to open the toner feeding opening. The toner is filled into said toner accommodating frame through the toner filling port such that the toner is first filled into a recess defined by said toner seal member.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: June 9, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Matsumaru, Daisuke Makiguchi, Yoshiyuki Batori, Ryuta Murakami, Toshiaki Takeuchi
  • Publication number: 20150147097
    Abstract: An image forming unit includes an image carrier, a developer carrier carrying a developer for developing images by attaching the developer to electrostatic latent images on the image carrier, a developer supply member for supplying the developer to the developer carrier, a first developer container having an opening, for containing the developer, a second developer container reserving the developer supplied via the opening from the first developer container, and a stirring member disposed rotatably in a prescribed rotation direction around a rotation axis in the first developer container for stirring the developer. The stirring member comprises a first elastic member extending in a first direction, and a second elastic member extending in a second direction as different direction from the first direction, and the second elastic member is disposed on a downstream side of the first elastic member in the rotation direction of the stirring member.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventors: Shingo SHIMADA, Tetsu KOYAMA
  • Patent number: 9042774
    Abstract: A cartridge attachable/detachable to/from a main assembly of an image forming apparatus, the cartridge includes a developer storage unit configured to store developer, a partitioning member movably provided inside the developer storage unit and configured to partition the developer storage unit, a developer conveyance member configured to convey the developer stored in the developer storage unit, and an operated portion configured to move the partitioning member, wherein when the cartridge is attached to the main assembly, the operated portion is moved by touching the main assembly to move the partitioning member from a first position to a second position where the developer storage unit is caused to be greater in capacity than that in the first position.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: May 26, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Susumu Nittani
  • Patent number: 9042791
    Abstract: A powder accommodation container includes an accommodation container body, a regulation member, and a transport member. The accommodation container body has a hole portion to outside and accommodates powder. The regulation member is provided in the hole portion to regulate a passage of the powder accommodated in the accommodation container body. The transport member is arranged in an inside of the accommodation container body to rotate about a rotating shaft and to transport the powder in the inside of the accommodation container body. The transport member has one end side in a short direction that is arranged on the rotating shaft and the other end side that is a free end, the free end includes a flexible member that is in contact with the accommodation container body to be flexed. The flexible member is locatable to face the hole portion.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: May 26, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Takuji Matsumoto, Iori Togu, Naofumi Murayama, Shigemasa Nakaya, Takuya Iwamura
  • Patent number: 9042792
    Abstract: A toner delivery system for a shake-free toner cartridge comprises a toner paddle assembly having a plurality of scrapers. A main scraper scrapes toner adhering to interior surfaces and directs toner from a first region of the toner reservoir into the opening in a first portion of the front of the housing. A secondary scraper positioned adjacent with the main scraper scrapes and directs toner from a second region of the toner reservoir into the first region. A side scraper scrapes toner adhering to interior surfaces of respective side walls of the housing.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: May 26, 2015
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: James Anthany Carter, II, Gary Neal Hackney, James Richard Leemhuis, Rodney Evan Sproul
  • Patent number: 9042793
    Abstract: A toner case includes a case main body and an agitating member. The case main body contains a toner. The agitating member agitates the toner contained in the case main body by rotating along an inner surface of the case main body. A rib is protruded on the inner surface of the case main body along a rotation direction of the agitating member. The agitating member is provided with a slit extending along the rotation direction and located at a position corresponding to the rib.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: May 26, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Masaru Torimoto
  • Patent number: 9037060
    Abstract: With a fixing apparatus, a shape of a folded portion on the side of a pressure roller of a sliding contact sheet is folded along a shape of the pressure roller, thereby uniformizing a longitudinal pressure distribution and preventing an uneven-gloss image due to pressure reduction.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 19, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Akiyoshi Shinagawa
  • Patent number: 9037050
    Abstract: A developer container for an image forming apparatus includes a housing configured to store developer, a developer conveying member disposed inside the housing and configured to rotate to convey the developer stored in the housing. The developer conveying member includes a rotary shaft, a rotary base member and a sheet-like main body. The main body has a base end portion fixed to the rotary base member and a free end portion configured to be pressed into contact with an inner wall of the housing. The rotary base member includes an urging member configured to urge the main body from an upstream side toward a downstream side in a direction of rotation thereof.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: May 19, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shuichi Kato, Yohsuke Hata, Norio Uchida
  • Patent number: 9031477
    Abstract: A toner case includes a case body, a cover, and a conveying member. The cover covers the outer surface of a wall at an end of the case body. The conveying member, including a first attaching assembly, a second attaching assembly and a linking assembly, is rotatably attached to the case body and feeds toner. The first attaching assembly is rotatably attached to the wall. The second attaching assembly is rotatably attached to a wall at the other end of the case body. One end and the other end of the linking assembly are respectively linked to the first attaching assembly and second attaching assembly. One end is slidable in the longitudinal direction of the conveying member. The linking assembly rotates together with the first and second attaching assemblies. The first attaching assembly engages the cover's inner surface, preventing the first attaching assembly from coming off the one-end wall.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: May 12, 2015
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Takeshi Ishii
  • Patent number: 9031475
    Abstract: An object is to smoothly convey toner from a developer containing chamber to a developing chamber even when an opening that provides communication between the developer containing chamber and the developing chamber has a connecting part for adding strength to the apparatus. A sheet member that conveys a developer from an opening to the outside of a developer containing chamber has an entering portion that is formed by a first slit extending from a free end of the sheet member and positioned to cross a connecting part as viewed in a direction orthogonal to a longitudinal direction of a shaft member. The entering portion is configured to enter the outside of the developer containing chamber from the inside of the developer containing chamber. The entering portion overlaps in position with the connecting part as viewed in the direction orthogonal to the longitudinal direction of the shaft member.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: May 12, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sho Shirakata, Tachio Kawai
  • Publication number: 20150117909
    Abstract: A developer container includes a container housing for storing developer, a cylinder section projecting from the container housing and including a developer discharge port, and a rotary member for conveying the developer to the discharge port. The rotary member includes a rotary shaft rotatably supported and having a first part located in the container housing and a second part located in the cylinder section, and a resilient member projecting from the second part of the rotary shaft in a radial direction of rotation of the rotary member and facing the developer discharge port. The resilient member includes a tip end operable to protrude radially outward out of the developer discharge port after rubbing an inner surface of the cylinder section as the rotary shaft of the rotary member makes rotation.
    Type: Application
    Filed: October 28, 2014
    Publication date: April 30, 2015
    Inventors: Tamotsu Shimizu, Shizuka Ikazaki
  • 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
  • Patent number: 9014599
    Abstract: A rotation transmission unit includes a driving unit that provides a rotational power; a rotation transmission member that is rotated due to reception of the rotational power transmitted from the driving unit; a rotation member that is rotated due to reception of a rotation of the rotation transmission member; a locking groove that is formed at one of the rotation transmission member and the rotation member; and a locking member that is arranged at the other of the rotation transmission member and the rotation member. A surface of the locking member on the locking groove side is flat.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: April 21, 2015
    Assignee: Oki Data Corporation
    Inventor: Atsushi Ota
  • Patent number: 9008555
    Abstract: An image forming apparatus includes a toner case, a driving mechanism and an installed part. The toner case includes a container main body, a rotating member and a transmission coupling. The container main body is provided with a discharge port configured to discharge a toner. The rotating member is installed into the container main body. The transmission coupling is connected with the rotating member. The driving mechanism includes a drive coupling and a drive unit. The drive coupling is detachably connected with the transmission coupling. The toner case has a lever supported onto the container main body. The driving mechanism has a movement mechanism which works in accordance with the operation of the lever, in a state of installing the toner case into the installed part, to move the drive coupling from a disconnecting position to a connecting position with the transmission coupling.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: April 14, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Daisuke Eto
  • Publication number: 20150093154
    Abstract: A toner container according to one aspect of the present disclosure includes a container body, a rotating member, a conveying member, a film member, and a stepped portion. Container body can store toner thereinside. Container body includes toner conveying path having supply opening through which toner is supplied to the outside. Rotating member is rotatably provided in container body. Rotating member rotates to scoop, into toner conveying path, toner stored in container body. Conveying member is rotatably provided in toner conveying path. Conveying member rotates to convey, toward the supply opening, toner in toner conveying path. Film member is mounted to an inner wall which extends from toner conveying path to an inner side of container body, and projects toward a region in which rotating member rotates. Stepped portion is provided in the inner wall. Stepped portion forms, between stepped portion and film member, a space having a predetermined height.
    Type: Application
    Filed: March 31, 2014
    Publication date: April 2, 2015
    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Tatsuhiko Yoshii, Koji Murata