Canon Kabushiki Kaisha

Noriyuki Komatsu

Tomonori Mori

Tetsuya Numata

Toru Oguma

Shunsuke Uratani

Makoto Hayashida

Naoya Asanuma

Teruhiko Sasaki

Takuya Kawakami

Tadayuki Tsuda

Daisuke Abe

Toshiyuki Karakama

Osamu Anan

Masaki Ojima

Naoki Maeda

Ryuta Murakami

Daisuke Makiguchi

Takatoshi Hamada

Isao Koishi

Naoki Matsumaru

Sho Shirakata

Yuuki Nakamura

Satoru Harada

Takeshi Arimitsu

Satoru Motohashi

Hiroaki Nosho

Kazushi Watanabe

Tetsuo Uesugi

Goshi Ozaki

Tadashi Horikawa

Akiyoshi Yokoi

Hideshi Kawaguchi

Tsuyoshi Ogawa

Ryoji Kusudo

Masakazu Tatsumi

Koji Yamaguchi

Ken Kikuchi

Akihiro Fujiwara

Hiroomi Matsuzaki

Yosuke Kashiide

Yoshiyuki Batori

Toshiaki Takeuchi

Takashi Akutsu

Yukio Kubo

Masaaki Matsushita

Shigemi Kamoshida

Junichi Matsumura

Yohei Kusano

Go Torii

Atsushi Takasaka

Jun Miyazaki

Yuichi Sakakibara

Kyoji Kusudo

A cartridge includes a drum unit and a development unit. The drum unit includes a photosensitive drum, a frame, a transfer roller, and a cleaning member. The development unit includes a development roller, and a memory. The cleaning member is configured to come into contact with the photosensitive drum at a region between a development nip portion and a transfer nip portion in a circumferential direction of the photosensitive drum and at an end portion of the photosensitive drum in a direction of the rotational axis. The frame has an exposing hole through which the memory is exposed from the frame, and a recessed portion that is adjacent to the exposing hole in the direction of the rotational axis, and stores foreign matters removed from the photosensitive drum by the cleaning member.

Cartridge and image forming apparatus

A cartridge unit includes: a first unit which includes a first supporting portion and a second supporting portion; and a second unit which includes a first supported portion, a second supported portion, and a storage member, the storage member including a memory contact, and a contact arrangement surface on which the memory contact is disposed. The second unit rotates from a first position to a second position in a state in which the first supported portion is supported by the first supporting portion and the second supported portion is supported by the second supporting portion to be positioned with respect to the first unit. A normal direction of the contact arrangement surface faces toward a direction in which the memory contact is exposed. The normal direction faces toward a direction opposite to a direction in which the second unit is directed from the first position to the second position.

Cartridge unit

A cartridge includes a drum flange provided at one end portion of a photosensitive drum, with the drum flange including a hollow interior portion elongated along the axis of the photosensitive drum and an interior surface. A coupling member is operatively connected to the drum flange, with the coupling member being configured to transmit the driving force to the drum flange. A coil spring is provided for urging the coupling member, and at least a part of the coil spring is positioned within the hollow interior portion of the drum flange. The interior surface of the drum flange includes an abutting portion configured to restrict movement of the coupling member in the direction away from the photosensitive drum along the axis of the photosensitive drum by abutting the coupling member.

Cartridge and electrophotographic image forming apparatus

A cartridge is mountable in and dismountable from a main assembly of an image forming apparatus, in which the main assembly includes an opening and an openable member including a discriminating portion. The cartridge includes a process unit including a rotatable photosensitive member and a developing roller configured to supply toner to the photosensitive member, and a developer storage unit configured to store a developer. The developer storage unit is provided with a discharge opening for permitting discharge of the stored developer to the process unit and is mountable to and dismountable from the process unit. The developer storage unit is provided with a portion-to-be-discriminated provided so as to be engaged with the discriminating portion of the openable member when the cartridge is mounted in the main assembly and the openable member is in a closed position.

Cartridge including a developer storage unit for storing developer

A developing unit, which is attachable to and detachable from a photosensitive member unit, includes: a developing roller; a housing in which a holding space that holds toner is formed; and a pressing receiving portion that receives pressing force from a pressing member. The housing includes a first bottom portion that projects toward an outer side of the holding space, and a second bottom portion that projects toward the outer side of the holding space, in a state in use. When viewed in a direction of a rotation axis of the developing roller, at least part of the pressing receiving portion is located in a space surrounded by the first bottom portion, the second bottom portion, and a tangent line tangent to both an outer wall of the first bottom portion and an outer wall of the second bottom portion.

Process cartridge

An image forming apparatus comprises a main assembly of the image forming apparatus, with the main assembly including a driving shaft. The image forming apparatus also includes a cartridge detachably mountable to the main assembly of the image forming apparatus, the cartridge including (i) a photosensitive drum and (ii) a coupling positioned adjacent to an end portion of the photosensitive drum, with the coupling being movable in an axial direction of the photosensitive drum. The coupling is engageable with the driving shaft by the coupling moving in the axial direction in a state in which the cartridge is tilted relative to the main assembly of the image forming apparatus.

Cartridge, attachment and mounting kit

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 foreign substance collection apparatus includes: a frame body; a photosensitive drum; a cleaning roller which collects foreign substances from a surface of the photosensitive drum; a collecting roller which further collects the foreign substances having been collected by the cleaning roller from the cleaning roller; and a scraping member which scrapes off the foreign substances from the collecting roller. A foreign substance collecting portion included in the frame body has, in a posture during use: a first inner bottom surface which is positioned below the scraping member in a gravity direction; an outer bottom surface which is positioned further below the first inner bottom surface; and a connecting surface which intersects the first inner bottom surface and the outer bottom surface and which connects the first inner bottom surface and the outer bottom surface with each other.

Foreign substance collection apparatus, process cartridge, and image forming apparatus

A process cartridge includes a first unit including an image bearing member configured to carry an electrostatic latent image, and a second unit including a developer bearing member configured to develop the electrostatic latent image carried on the image bearing member into a toner image, the second unit being capable of being mounted on the first unit in a mounting direction. The first unit includes a moving member that moves the second unit mounted on the first unit at a mounting position to a detachment position. The second unit includes a storage unit that stores information about the second unit. The moving member is disposed on a first side of the process cartridge in a longitudinal direction of the image bearing member. An electrode of the storage unit is disposed on a second side of the process cartridge in the longitudinal direction.

Process cartridge and image forming apparatus

A cartridge includes a drum flange provided at one end portion of a photosensitive drum. A coupling member is operatively connected to the drum flange, with the coupling member being configured to transmit the driving force to the drum flange. The drum flange has an opening at one end and is closed at another end, and the opening leads to a hollow interior portion. An end portion of a coil spring contacts an interior surface of the closed end of the drum flange, and the drum flange includes a housing and a cover member attached to the housing, with the closed end of the drum flange being a part of the cover member.

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

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Numazu, Japan

Noriyuki Komatsu