Canon Kabushiki Kaisha

Yukio Kubo

Masaaki Sato

Yosuke Kashiide

Hiroyuki Munetsugu

Yu Fukasawa

Akira Yoshimura

Tomio Noguchi

Satoshi Nishiya

Koji Wada

Daisuke Abe

Mitsuhiro Sato

Kengo Sakai

Goshi Ozaki

Masahiro Suetsugu

Shinichi Nishida

Shinjiro Toba

Susumu Nittani

Yuichi Fukui

Hiroshi Takarada

Sohta Sugimoto

Masanari Morioka

Naoki Hayashi

Noriyuki Komatsu

Hideki Maeshima

Kazunari Murayama

Isao Koishi

Tetsuo Uesugi

Takashi Kimura

Masatoshi Yamashita

Shigemi Kamoshida

Kensuke Sato

Yuko Harada

Masanori Kudo

Makoto Nishigaki

An image forming apparatus includes: a main body; a developing cartridge having a housing, a memory medium, a memory medium unit, a developer carrier, and a protrusion portion in the longitudinal direction of the developer carrier; and a tray having a frame, an image bearing member, a guide member provided at one end in the longitudinal direction, an electric contact portion with the memory medium, and a memory unit support portion. The guide member includes a portion which functions as a memory unit support portion, and a downstream portion located downstream of the memory unit support portion in the mounting direction of the developing cartridge. The memory unit support portion guides the protrusion portion to the downstream portion when the developing cartridge is mounted on the frame.

Image forming apparatus and developing cartridge

An image forming apparatus to which a toner container is detachably mountable includes a mounting portion to which the toner container is detachably mountable and which includes a receiving port for receiving toner supplied from the toner container, a passage for permitting passing of the toner received through the receiving port and provided with a through hole, and a filter portion provided so as to cover the through hole and for permitting passing of air; and an accommodating portion configured to accommodate the toner received through the receiving port. At least a part of the through hole overlaps with the receiving port as viewed in a horizontal direction perpendicular to a direction of gravitation.

Image forming apparatus and image forming system

Disclosed is a cartridge attachable to an image forming apparatus body, the cartridge including: a memory member storing information relating to the cartridge; and a supporting body having a memory mounting portion on which the memory member is mounted, the memory member having a first surface, a second surface, and a lateral surface, the first surface is provided with a contact portion connected to a body electrode portion of the body of the image forming apparatus when the cartridge is installed in the body of the image forming apparatus, the memory mounting portion has a first opposing portion opposing the second surface and a second opposing portion opposing the lateral surface when the memory member is mounted, the memory member is mounted by adhesive between the second surface and the first opposing portion and between the lateral surface and the second opposing portion.

Cartridge including a memory mounting portion and image forming apparatus including the cartridge

An image forming apparatus includes a main body having a first metal terminal, a plurality of toner cartridges to store toner and including a housing storing the toner, a supporting member provided at one end, and a memory medium including a chip for recording information about the toner cartridge and an electrical contact and being supported by the supporting member, and a tray movable between a housed position and a drawn-out position. The tray includes a frame which can mount the plurality of toner cartridges, a plurality of tray-side electrical contacts provided at the frame and able to contact the electrical contact of the memory medium of the plurality of toner cartridges respectively, and a second metal terminal electrically connected to the plurality of tray-side electrical contacts and able to contact the first metal terminal.

A process cartridge includes a photosensitive drum and a developing roller for developing a latent image on the photosensitive drum. The process cartridge also includes a protrusion having a surface configured to receive a force to move a frame supporting the developing roller from the first position in which the developing roller contacts the photosensitive drum to the second position in which the developing roller is spaced apart from the photosensitive drum. The process cartridge is configured such that, when the frame is in the first position and the process cartridge is oriented with the photosensitive drum and the protrusion positioned at a bottom side of the process cartridge, (i) a rotational axis of the photosensitive drum is lower than a rotational axis of the developing roller, and (ii) as viewed in a direction of the rotational axis of the photosensitive drum, the surface of the protrusion extends in a direction that is perpendicular to a part of a surface at the bottom side of the process cartridge that extends away from the photosensitive drum and away from the protrusion.

Image forming apparatus and process cartridge including protrusion to receive a force for moving developing roller

A toner supply container includes a memory portion, a container portion, a discharging portion, and a shutter. The memory portion includes a memory for storing information and an electrode having an exposed surface. The discharging portion is disposed on one end side of the container portion with respect to a first direction. The shutter is configured to rotate around an axis extending in the first direction. As viewed along the first direction, the exposed surface is disposed inside of an imaginary circle that passes through an outer end of the shutter with the axis as a center of the imaginary circle.

Toner supply contaner and mounting unit

A container for accommodating a content of powder or a liquid includes an accommodating portion for accommodating the content; a top end portion including a discharging portion and a shielding member, wherein the discharging portion includes a discharge opening for discharging the content to an outside of the container and a passage for permitting passing of the content toward the discharge opening, and the shielding member shields the discharge opening; and a cap detachably mounted to the top end portion, wherein the cap includes a main body portion covering at least a part of the top end portion and a fixing portion fixed to the top end portion and connected to the main body portion, and wherein the main body portion of the cap is separated from the fixing portion by being rotated about a rotational axis thereof relative to the top end portion.

Container with shield for shielding a discharge opening thereof

The cartridge is detachably mountable to a main assembly of an image forming apparatus that includes a drive output member configured to output a driving force, and a main assembly side pushing member configured to incline the drive output member by pushing the drive output member. The cartridge includes a photosensitive drum and a cartridge side pushing member. The cartridge side pushing member is configured such that an inclination angle of the drive output member is changed by pushing the main assembly side pushing member.

Cartridge, attachment and mounting kit

An image forming apparatus includes a tray which is movable between a housed position at which the tray is housed in a housing portion of a body and a drawn-out position, a first cartridge detachably attached to the tray and including a first developing roller, and a second cartridge detachably attached to the tray and including a second developing roller. In a contacting state where (i) the first cartridge and the second cartridge are attached to the tray, (ii) the tray is in the housed position, (iii) the first developing roller contacts a first photosensitive drum, and (iv) the second developing roller contacts a second photosensitive drum, a position of a first projection of the first cartridge and a position of a first holder to which a first memory is fixed at least partially overlap each other with respect to the vertical direction.

Image forming apparatus

An image forming apparatus includes a mounting portion for mounting a process cartridge, the process cartridge including a first unit having an image bearing drum, and a second unit having a developing roller, the second unit being movable between a contact position in which the roller contacts the drum and a spaced position in which they are mutually spaced; an engageable member engageable with a force receiving portion provided on the second unit; wherein the engageable member is movable between a first position for maintaining the second unit in the spaced position by engaging with the force receiving portion, a second position for permitting movement of the second unit from the spaced position to the contact position; and a third position for permitting the process cartridge to be mounted, by being pressed by the process cartridge to retract, when the process cartridge is mounted to the mounting portion.

Process cartridge having a protrusion with a surface configured to receive a force to move a frame of the process cartridge

A cartridge that is mountable to an apparatus main assembly of an image forming apparatus, the cartridge includes a developing roller; a frame supporting the developing roller; a movable part movably supported by the frame and movable to a first position and to a second position relative to the frame; and an elastic part provided between the frame and the movable part to urge the movable part. The movable part includes a first force receiving part that receives force from the apparatus main assembly, in a direction of moving from the first position to the second position, and a second force receiving part that receives force from the apparatus main assembly, in a direction of moving from the second position to the first position. When the movable part receives force from the apparatus main assembly at the first force receiving part and is at the second position, the movable part receives urging force from the elastic part in a direction of moving the movable part from the second position to the first position.

Cartridge, member constituting cartridge, and image forming apparatus

Movement and/or urging of a developer carrying member is carried out with high precision. A cartridge that is mountable to an apparatus main assembly of an image forming apparatus, the cartridge includes a developing roller; a frame supporting the developing roller; a movable part movably supported by the frame and movable to a first position and to a second position relative to the frame; and an elastic part provided between the frame and the movable part to urge the movable part. The movable part includes a first force receiving part that receives force from the apparatus main assembly, in a direction of moving from the first position to the second position, and a second force receiving part that receives force from the apparatus main assembly, in a direction of moving from the second position to the first position. When the movable part receives force from the apparatus main assembly at the first force receiving part and is at the second position, the movable part receives urging force from the elastic part in a direction of moving the movable part from the second position to the first position.

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Kawasaki, Japan

Yukio Kubo