Canon Kabushiki Kaisha

Daisuke Makiguchi

Ryuta Murakami

Toshiaki Takeuchi

Yoshiyuki Batori

Tetsuya Numata

Naoki Matsumaru

Noriyuki Komatsu

Naoya Asanuma

Tadashi Horikawa

Takatoshi Hamada

Akihiro Fujiwara

Hiroki Shimizu

Naoki Hayashi

Tachio Kawai

Masato Tanabe

Goshi Ozaki

Takashi Kimura

Takuya Kawakami

Junichi Matsumura

Noritomo Yamaguchi

Go Torii

Takahito Ueno

Daisuke Abe

Hiroomi Matsuzaki

Yu Fukasawa

Kazuki Matsumoto

Naoki Maeda

Makoto Tokudome

Tatsuro Harada

Gosuke Goto

Koji Yamaguchi

Osamu Anan

Yuuki Nakamura

Akinobu Hirayama

Masaaki Matsushita

Tatsuo Fujisaki

Shigemi Kamoshida

Tomofumi Kawamura

Hiroaki Nosho

Ryota Shibuya

Shohei Katsuya

Takuro Kanno

A cartridge includes a photosensitive drum, the movable member movable relative to the photosensitive drum to control an inclination angle of a drive transmission member. The movable member is movable between a first position for reducing an inclination angle of the drive transmission member relative to the photosensitive drum and a second position retracted from the first position. By this, driving connection can be smoothly carried out.

Cartridge and image forming apparatus

A cartridge configured to be attachable to an apparatus main body of an image forming apparatus includes a first unit including a photosensitive drum, a second unit attached to the first unit and including a developing roller, and a second frame member including a toner storage portion and including a toner reception port, the toner storage portion including a first end portion and a second end portion in a rotational axis direction of the photosensitive drum, the toner reception port provided in the first end portion, a toner container configured to be attachable to the second unit, the toner container including a toner discharge port configured to discharge the toner to the toner storage portion through the toner reception port, and a memory, the memory provided in an end portion of the cartridge on the same side as the second end portion of the toner storage portion.

Cartridge used in image forming apparatus

A cartridge includes a photosensitive drum supported by a frame, a coupling positioned at an end of the photosensitive drum, with the coupling being configured to receive a driving force for rotating the photosensitive drum. A lever is movably supported by a part of the frame at a position that is adjacent to the end of the photosensitive drum, with the lever being movable between a first position and a second position. As viewed along the axis of the photosensitive drum, an end of the lever is a first distance from the axis of the photosensitive drum when the lever is in the first position, and the end of the lever is a second distance from the axis of the photosensitive drum when the lever is in the second position, with the second distance being greater than the first distance.

A cartridge detachably mountable to a main assembly of an image forming apparatus includes a photosensitive member unit including a photosensitive drum; a sheet configured to remove a deposited matter from a surface of the drum, the sheet being in contact with the surface of the drum at an end portion of the drum with respect to a rotational axis direction of the member; and a developing unit detachably mounted to the member unit, the developing unit including a developing roller configured to supply toner to the drum, and a storage portion configured to store the deposited matter removed from the surface of the drum by the sheet.

Cartridge and developing cartridge including a frame and sheet member provided at end side of the frame

Cartridge having toner removing sheet in contact with photosensitive drum

Cartridge with a sheet to remove matter from a surface of a photosensitive drum

A developing device includes a developing unit, swingably supported, for supplying a developer to an image bearing member, and including an inwardly extending wall portion. In an attitude during use, when against an urging force of an urging member configured to urge the developing unit in a first direction toward the image bearing member, the developing unit is moved in a second direction opposite to the first direction, the inwardly extending wall portion is contactable to a restricting member for restricting an amount of movement of the developing unit in the second direction.

Developing device having restricted movement, process cartridge and image forming apparatus

A method of manufacturing a frame unit from a first unit. The first unit includes a first image carrying member, a supporting member supporting the first image carrying member, and a frame to which the supporting member is adhered. The first image carrying member includes a first edge portion member, and the first edge portion member includes a first restricted portion. The supporting member includes a bearing engaging with the first edge portion member so that the first image carrying member is rotatable about a rotational axis. The frame includes a first restricting portion restricting movement of the first image carrying member. The method includes separating in which the first image carrying member is separated from the supporting member while in a state in which the supporting member is adhered to the frame.

Method of manufacturing frame unit, method of manufacturing image carrying unit, method of manufacturing cartridge, and cartridge

A cartridge mountable to and dismountable from a main assembly of an image forming apparatus includes a memory, a guide configured to guide a portion-to-be-guided provided in the main assembly and to guide a main assembly contact provided in the main assembly to a memory contact of the memory when the cartridge is mounted in the main assembly, and a grip portion. The guide is provided at a bottom of the cartridge when the cartridge is hung by gripping the grip portion and constitutes a part of a supporting portion configured to support the cartridge when the cartridge is placed on a horizontal placement surface. The guide has a chamfered surface formed by being chamfered. When the cartridge is supported at the supporting portion, the chamfered surface opposes the horizontal placement surface, and a surface of the memory contact is inclined with respect to the horizontal placement surface.

A manufacturing method includes a dividing step for dividing a supporting member into a first divided portion including a fixed portion to a frame and a second divided portion including a second engaged portion, a divided-portion detaching step for detaching the second divided portion from the frame, and a separating step for detaching an engaging portion from a first engaged portion and separating a developing unit from the frame.

Method for manufacturing image bearing unit and method for manufacturing cartridge

Process cartridge for image forming apparatus

A manufacturing method includes a removing step for removing at least a part of a contact portion of a cover portion from a supporting member, the cover portion being configured to come into contact with a projecting portion included in a frame when the supporting member is deformed to allow a second engaged portion to be detached from an engaging portion in a state in which a fixed portion of the supporting member is fixed to the frame, a deforming step for deforming the supporting member to allow the second engaged portion to be detached from the engaging portion in the state in which the fixed portion is fixed to the frame, and a separating step for detaching an engaging portion from a first engaged portion and separating a developing unit from the frame.

A developing device includes a rotatable developer bearing member, a regulation member configured to regulate a thickness of the developer borne on the surface of the developer bearing member, a frame configured to support the developer bearing member, the frame including a recess in an opposed surface opposed to the regulation member, the recess being recessed in a direction away from the regulation member and extending from a center portion toward both end portions in the rotation axis direction, a width, in the orthogonal direction, of the recess in both the end portions increasing gradually as distance from the center portion in the rotation axis direction increases, and a sealing member provided in the recess to seal a gap between the regulation member and the frame, the sealing member being formed by ejecting thermally molted resin into the recess.

Developing device

Growing community of inventors

Izunokuni, Japan

Daisuke Makiguchi