Canon Kabushiki Kaisha

Tatsuo Fujisaki

Hiroomi Matsuzaki

Kojiro Yasui

Masaaki Matsushita

Junichi Matsumura

Tetsuo Uesugi

Kazuki Matsumoto

Masaki Furutani

Shigenori Itoyama

Tomonori Matsunaga

Hidehisa Makita

Satoru Shiomi

Koji Yamaguchi

Toshihiko Mimura

Kimitoshi Fukae

Yoshifumi Takeyama

Takeshi Takada

Koji Tsuzuki

Yoshitaka Nagao

Yoshihiko Hyosu

Makoto Sasaoka

Fumitaka Toyomura

Hitoshi Toma

Masatomi Yoshida

Ippei Sawayama

Masaaki Sato

Koji Wada

Yosuke Kashiide

Yoshiyuki Batori

Ryuta Murakami

Toshiaki Takeuchi

Tsutomu Murakami

Yasuhiko Shiomi

Isao Nakazawa

Hirofumi Ichinose

Daisuke Makiguchi

Takayuki Kanazawa

Takashi Kase

Akio Hasebe

Satoshi Shinkura

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 fixing portionfor suppressing movement of a developer bagwhen the developer bagis unsealed by moving a sealing memberis provided. By this, unsealing becomes easy.

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

Developer accommodating container, 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 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 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 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.

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

A developer accommodating container for accommodating a developer includes a developer bagprovided with an injection port for permitting entrance of the developer and an opening 35for permitting discharge of the developer and includes a sealing memberwhich includes a bonded portion bonded to the developer bagso as to seal the opening and which is capable of exposing the opening by peeling the bonded portion from the developer bagby being moved, and the sealing member includes a first bonded portion 22in an upstream side of the opening and a second bonded portion 22in a downstream side of the opening with respect to a sealing member unsealing direction, the first bonded portion and the second bonded portion interposing the opening, and the second bonded portion is provided in a non-contact position with the opening.

Developer accommodating container, process cartridge, electrophotographic image forming apparatus

A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the main assembly including a first coupling member which is rotatable about a first axis and which has a first edge line provided at a free end portion with respect to a direction of the first axis, includes a second coupling member which is rotatable about a second axis and which has a second edge line provided at a free end portion with respect to a direction of the second axis, the second coupling member being engageable with the first coupling member to receive a driving force from the first coupling member; and a rotatable member rotatable by the driving force received by the second coupling member; wherein when the first edge line and the second edge line are contacted to each other before the first coupling member and the second coupling member are engaged with each other, upon mounting the cartridge to the main assembly of the apparatus so as to bring the second coupling member close to the first coupling member in a state in which the first axis and the second axis are substantially aligned with a common phantom line, (i) the first edge line and the second edge line projected on a first phantom plane including the phantom line are crossed with each other, and (ii) the first edge line and the second edge line projected on a second phantom plane perpendicular to the phantom line are crossed with each other, and at least one of a normal line of the first edge line and a normal at a second edge line at a crossing point does not pass through the phantom line.

Cartridge with first and second coupling members for engaging main assembly

Growing community of inventors

Yokohama, Japan

Tatsuo Fujisaki