Canon Kabushiki Kaisha

Masaaki Matsushita

Akiharu Takabayashi

Tatsuo Fujisaki

Hiroomi Matsuzaki

Kojiro Yasui

Takaaki Mukai

Tetsuo Uesugi

Masaki Furutani

Shigenori Itoyama

Junichi Matsumura

Hidehisa Makita

Koji Yamaguchi

Masahiro Mori

Masatomi Yoshida

Tomonori Matsunaga

Ayako Komori

Takeshi Takada

Kazuki Matsumoto

Toshihiko Mimura

Ichiro Kataoka

Takayuki Kanazawa

Ayako Shiomi

Chinchou Lim

Noriyuki Komatsu

Yosuke Kashiide

Koji Wada

Yoshiyuki Batori

Toshiaki Takeuchi

Tsutomu Murakami

Jun Miura

Takehito Yoshino

Takatoshi Hamada

Daisuke Makiguchi

Kohei Matsuda

Koichi Shimizu

Hidetoshi Tsuzuki

Yoshifumi Takeyama

Seiichi Shinohara

Shunsuke Mizukoshi

Koji Tsuzuki

Takashi Mukai

Takashi Kase

Yusuke Usui

Toshiyuki Shuto

A developer accommodating unit for accommodating a developer for image formation includes a flexible container provided with an openingfor permitting discharge of the developer, a frame for accommodating the flexible container and for accommodating the developer to be discharged from the flexible container, and an urging memberfor urging a developer accommodating bag toward the frame for accommodating the developer accommodating bag. By this, it is possible to satisfactorily effect discharge of the developer from the flexible developer accommodating bag

Developer accommodating unit, process cartridge and electrophotographic image forming apparatus

A developer accommodating unit for accommodating a developer for image formation. A flexible container includes a developer accommodating portion for accommodating the developer and an opening for permitting discharge of the developer. The flexible container also includes a superposed multi layer sheet structure portion for forming the developer accommodating portion. A sealing member seals the opening and an unsealing member moves the sealing member to unseal the opening. A frame that accommodates the flexible container, the sealing member, and the unsealing member includes a fixing portion for fixing the flexible container. A fixed portion fixed to the fixing portion is provided at the superposed multi layer sheet structure portion of the flexible container, and an interlayer bonding portion between the superposed layers is provided between the fixed portion of the multi layer sheet structure portion and the developer accommodating portion.

Developer accommodating unit, process cartridge, and electrophotographic image forming apparatus

A developing cartridge includes: a flexible developer bag, provided with an opening and provided in a frame, for accommodating a developer; and an acting member contactable to the developer bag. The developer bag is fixed to the frame at its upper portion. The developer bag is swingable by contact with the acting member.

Developing cartridge, process cartridge and image forming apparatus

A developer accommodating unit for accommodating a developer includes: a flexible container provided with an opening for permitting discharge of the accommodated developer; a sealing member for sealing the opening and for exposing the opening by being moved in a direction crossing a longitudinal direction of the developer accommodating unit; an unsealing member, mounted to the sealing member, for moving the sealing member; a frame including a fixing portion for fixing the flexible container; and a bonding portion for bonding an end portion of the sealing member and a periphery of the opening. The bonding portion includes a projected portion or recessed portion in a plane of the bonding portion as at least a part thereof, in an upstream side or a downstream side of the opening with respect to an unsealing direction of the opening.

Developer accommodating unit, process cartridge and image forming apparatus

A developer accommodating container for accommodating a developer includes: a flexible container provided with an opening for permitting discharge of the developer; a sealing member for sealing the opening in a state in which the sealing member is bonded to a periphery of the opening, wherein the sealing member is capable of exposing the opening by being removed by pulling; and a reinforcing portion, provided at least as a part of the periphery of the opening, for decreasing a degree of deformation of the opening.

Developer accommodating container, process cartridge and electrophotographic image forming apparatus

A developer accommodating unit for accommodating a developer includes: a flexible container provided with a plurality of openings for permitting discharge of developer. The openings are formed and arranged in a longitudinal direction of the developer accommodating unit. The openings have opening areas such that with respect to the longitudinal direction, the opening area of the opening provided at an end portion is larger than the opening area of the opening provided at a central portion.

Developer accommodating unit, developing device, process cartridge and image forming apparatus

A developer accommodating container for accommodating a developer includes; an opening for permitting discharge of the developer; and a sealing member, mounted on the developer accommodating container, capable of exposing the opening by being moved. At least a part of the sealing member is formed of a material having compatibility with a material for forming the developer accommodating container and a material having incompatibility with the materiel for forming the developer accommodating container. Either one of the material having the compatibility and the material having the incompatibility is dispersed in the other one of the materials.

Developer accommodating container, developer accommodating unit, process cartridge and image forming apparatus

A developer accommodating unit includes: a developer bag in which a developer is incorporated. The developer bag includes: a filling port for filling the developer; a filling region where the developer is filled; a non-filling region, provided outside the filling region, where the developer is not filled, and a folded portion formed by folding the filling region and the non-filling region. The folded portion includes a welding portion.

Developer accommodating unit, manufacturing method thereof, process cartridge and image forming apparatus

A developer accommodating container includes: a flexible container provided with an opening for permitting discharge of a developer; a sealing member, mounted to the flexible container in a state in which the sealing member seals the opening, capable of exposing the opening by being wound up; an unsealing member for winding up the sealing member by being rotated to expose the opening; a frame for accommodating the unsealing member; and a limiting portion for limiting deformation of the unsealing member with respect to a direction of a force applied from the sealing member to the unsealing member when the unsealing member winds up the sealing member.

A developer accommodating unit includes: a flexible container, provided with an opening for permitting discharge of a developer, for accommodating the developer; a frame for accommodating the flexible container and for accommodating the developer discharged from the flexible container; and an urging member, provided inside the frame, for urging the flexible container to deform the flexible container. The flexible container has a plurality of sides including an opening-containing side and another side having stiffness lower than that of the opening-containing side.

Developer accommodating unit with a urging member for urging a flexible member

A developer accommodating container for accommodating a developer includes a flexible container including an injection port for permitting entrance of the developer and a plurality of openings for permitting discharge of the developer, and a sealing member mounted on the flexible container in a state in which the sealing member seals the plurality of openings and capable of exposing the plurality of openings by being moved in an unsealing direction. The plurality of openings are provided at different positions along an axial direction perpendicular to the unsealing direction in which exposure of the plurality of openings advances.

Flexible developer accommodating container with unsealable openings

A developer accommodating unit for accommodating a developer includes: an accommodating portion, provided with an opening, for accommodating the developer; a sealing member for sealing the opening; and an unsealing member rotatable for winding up the sealing member. The sealing member is peelable off from the accommodating portion to unseal the opening in a first unsealing direction and a second unsealing direction opposite to the first unsealing direction.

Growing community of inventors

Yokohama, Japan

Masaaki Matsushita