Brother Kogyo Kabushiki-kaisha

Masahiro Ishii

Fumio Morita

Shougo Sato

Tsutomu Suzuki

Takeshi Fuwazaki

Isao Kishi

Mitsuru Horinoe

Kenta Tosuji

Yasuo Fukamachi

Hideaki Deguchi

Yukiko Nakaya

Takuya Amaike

Takanori Uno

Hiroki Mori

Masatoshi Shiraki

Satoru Ishikawa

Keigo Nakajima

Yuichi Matsushita

Hiroya Fukuta

Takuya Kanda

Nao Itabashi

Kazuna Taguchi

Fumikazu Sato

Motoaki Mushika

Ryuya Yamazaki

Yoshinori Ito

Kenjiro Nishiwaki

Yoshiteru Hattori

Fan Xu

Keita Hironaka

Masateru Kawamura

Hirofumi Kuriki

Shunji Yoshimoto

Manabu Kato

Koji Aoyama

A developer cartridge according to one aspect is attachable to a photoconductor unit that comprises a photoconductive drum. The developer cartridge may comprise a main body having an opening, the main body comprising an electric circuit, a front cover configured to move to an opening position in which the opening of the main body is exposed and to a closing position in which the opening of the main body is closed, a first terminal electrically connected to the electric circuit, a photosensitive drum, and a developer cartridge comprising a developing roller, developing frame having a pressed portion, memory unit and second terminal. The front cover may include a pressing portion configured to press the pressed portion of the developing frame in a direction from the developing roller toward the photosensitive drum, and wherein the second terminal faces to the front cover when the front cover is in the closed position.

Cartridge including photoconductive drum, developing roller, memory and terminal connected to the memory

Developing cartridge including developing roller memory, and terminal and being detachably attachable to drum cartridge including photoconductive drum

Drum cartridge and process cartridge including drum cartridge

Developing cartridge

A developer cartridge according to one aspect described herein is attachable to a photoconductor unit that comprises a photoconductive drum. The developer cartridge may comprise a main body having an opening, the main body comprising an electric circuit, a front cover configured to move to an opening position in which the opening of the main body is exposed and to a closing position in which the opening of the main body is closed, a first terminal electrically connected to the electric circuit, a photosensitive drum, and a developer cartridge comprising a developing roller, developing frame having a pressed portion, memory unit and second terminal. The front cover may include a pressing portion configured to press the pressed portion of the developing frame in a direction from the developing roller toward the photosensitive drum, and wherein the second terminal faces to the front cover when the front cover is in the closed position.

Developing cartridge including developing roller at one end of developing frame and terminal at another end of developing frame, and memory electrically connected to terminal

In the image forming device, the main body has a loading port. The image bearing unit is configured to be detachably attached to the main body thorough the loading port. The toner unit is configured to be detachably attached to the main body thorough the loading port. The developer unit is configured to be detachably attached to the main body thorough the loading port. The toner unit, the developer unit, and the image bearing unit are located in this order from the loading port to an inside of the main body, when the toner unit, the developer unit, and the image bearing unit are attached in the main body. The toner unit is configured to be independently detached from the main body, when the image bearing unit and the developer unit are attached to the main body.

Image forming device having toner unit, developer unit, and image bearing unit

Image forming device with front cover arrangement

A developing device includes a casing configured to accommodate developer, a developing roller, a seal member, at least portion of which is disposed between the developing roller and the casing, and which includes a fabric member including a plurality of first fibers extending in a first direction, and a heat radiation member configured to contact end surfaces of the first fibers of the seal member and radiate heat of the seal member.

Developing device, process cartridge and image forming apparatus

A developing device including a housing, a developing roller rotatably provided to the housing, a layer thickness regulation blade contacting the developing roller, and a seal member arranged between the housing and each end of the developing roller, wherein the layer thickness regulation blade includes a blade main body extending along an axial direction of the developing roller, and a blade rubber part protruding from a surface of the blade main body facing the developing roller and contacting the developing roller, wherein an end surface of the blade rubber part in the axial direction is in contact with an inner end surface of the seal member in the axial direction, and wherein a suppression part configured to suppress a strength of flow of the developer is provided at a corner part between the blade rubber part and the seal member.

Developing device having developing roller, layer thickness regulation blade and seal member

A developing device including a housing, a developing roller, a seal member arranged between the housing and each end of the developing roller, and a layer thickness regulation blade including a blade main body, and a blade rubber part protruding from a surface of the blade main body and contacting the developing roller, wherein an end surface of the blade rubber part in an axial direction of the developing roller is in contact with an inner surface of the seal member in the axial direction, and wherein the blade rubber part has an inclined surface at each end thereof in the axial direction, the inclined surface extending toward an upstream side in a rotating direction of the developing roller while extending toward an outer side in the axial direction so as to extend to the seal member.

Developing device

A developer cartridge according to one aspect of the invention is attachable to a photoconductor unit that comprises a photoconductive drum. The developer cartridge may comprise a developing frame defining a developer container configured to contain developer, the developing frame having a first side and a second side; a developing roller located at the first side of the developing frame so as to receive developer conveyed from the developer container in a first direction; a contact terminal located at the second side of the developing frame; and a memory electrically connected to the contact terminal, wherein the first side is downstream in the first direction from the second side.

Image forming device and cartridge configuration

A developing device includes: a frame having an opening; a developer carrying member rotatably supported to the frame; and a side seal. The developer carrying member is rotatable about its axis in a rotating direction and has an axial end portion in an axial direction. The side seal is disposed between the frame and a peripheral surface of the axial end portion, and has a contact member contacting the peripheral surface. The contact member includes: a first seal member disposed adjacent to an edge of the opening in the axial direction; and a second seal member disposed adjacent to and upstream of the first seal member in the rotating direction. The first seal member permits developer to move inward in the axial direction and provides a mobility of developer therein higher than that of the second seal member that is made of a material that restricts movement of developer.

Developing device having seal members to restrict toner leakage

A developing device includes: a frame; a developer carrying member rotatably supported to the frame; and a side seal. The developer carrying member is rotatable about its axis in a rotating direction and has an axial end portion and a remaining portion inward of the axial end portion in an axial direction. The side seal is disposed between the frame and a peripheral surface of the axial end portion and includes: a contact member that can contact the peripheral surface; a support member disposed between the contact member and the frame; and a double-sided tape for adhering the contact member to the supporting member. The contact member includes: a first seal member; and a second seal member disposed adjacent to and upstream of the first seal member in the rotating direction. The first seal member and the second seal member are affixed to one adhesive surface of the double-sided tape.

An image forming apparatus or cartridge is provided that includes an image carrier configured to be rotated while carrying a developer and transfer the developer onto a recording sheet at a transfer position. The image forming apparatus or cartridge may include a separating member disposed downstream from the transfer position in a rotating direction of the image carrier. The separating member may include a contact portion configured to contact the image carrier to separate the recording sheet from the image carrier, and an aperture configured to allow the developer to pass through the separating member from a first side of the separating member to a second side of the separating member opposite the first side, wherein the aperture is positioned farther away from the image carrier than the contact portion.

Image forming apparatus and cartridge

Growing community of inventors

Nagoya, Japan

Masahiro Ishii