Canon Kabushiki Kaisha

Nobuharu Hoshi

Akira Suzuki

Kazunari Murayama

Tatsuya Suzuki

Hideki Maeshima

Toshiteru Yamasaki

Makoto Hayashida

Hiroshi Takarada

Akiyoshi Fujita

Kanji Yokomori

Tadashi Horikawa

Hironobu Isobe

Atsushi Numagami

Kazuhiko Kanno

Takahito Ueno

Kenji Matsuda

Hisayoshi Kojima

Yuichi Fukui

Fumito Nonaka

Kuniaki Hirukawa

Tadayuki Tsuda

Shinjiro Toba

Susumu Nittani

Isao Ikemoto

Yasuyuki Ishii

Akira Higeta

Junichi Matsumura

Kouji Hashimoto

Takeshi Setoriyama

Shuji Nishitani

Hidetoshi Yamashita

Yoshiaki Nakashima

Shigeo Miyabe

Kazushi Watanabe

Toshiyuki Karakama

Toru Oguma

Hiroomi Matsuzaki

Shinichi Sasaki

Kenji Aoki

Kazumi Sekine

Kazunori Suzuki

Shogo Satomura

Takahiro Noguchi

Masatomi Yoshida

Emi Watanabe

Norio Takami

Junji Yonemasu

Takashi Konishi

Hiroki Akatsuka

A mold includes a rotatable portion, a frame portion, a first and second portion, and a production unit. The rotatable portion has a plurality of surfaces and a plurality of forming portions. The plurality of surfaces is each provided with one of the plurality of forming portions, each having the same shape. The frame portion rotatably supports the rotatable portion. The first portion defines a cavity by coming into contact with one surface of the plurality of surfaces by clamping the mold. The second portion comes into contact with another surface of the plurality of surfaces different from the one surface by clamping the mold. The production unit attached to the frame portion.

Mold, method of producing product, method of producing image forming apparatus, and non-transitory computer-readable recording medium

A manufacturing apparatus includes a defining portion, a plunger, and a valve member. The defining portion defines a supply port, a discharge port, and a resin channel. The resin channel includes a reserving portion, a first partial channel connecting the supply port and the reserving portion, a second partial channel connecting the reserving portion and the discharge port, a relay channel connecting the first partial channel, the reserving portion and the second partial channel, and a connecting channel connecting the first partial channel and the second partial channel. The plunger discharges the molten resin reserved in the reserving portion. The valve member is provided in the connecting channel and the second partial channel. The first partial channel and the relay channel are connected to the connecting channel so as to intersect with the connecting channel. The valve member includes a first valve portion and a second valve portion.

Manufacturing apparatus, manufacturing system, and manufacturing method

An assembling apparatus that has a mold in which a second unit opposes a first unit and that is configured to assemble an assembled product from a plurality of parts. The first unit includes first, second, and third movable portions, which comprise, respectively, a plurality of first forming portions, a plurality of second forming portions, and a plurality of third forming. The second unit comprises a fourth movable portion, a fourth forming portion, a fifth forming portion, a sixth forming portion, and a plurality of assembling portions. The fourth movable portion is configured to move so as to switch at least one assembling portion opposed to at least one first forming portion, at least one other assembling portion opposed to the at least one second forming portion, and at least one remaining assembling portion opposed to at least one third forming portion.

Method of producing assembled product and assembling apparatus

A cartridge detachably mountable to a main assembly of an image forming apparatus includes a cartridge frame formed of a resin material; a plurality of resin members molded on the cartridge frame by injection molding of a resin material different from that of the cartridge frame; a plurality of contact surfaces, provided on the cartridge frame, to which metal molds corresponding to the resin members are to be contacted from the same side when the resin members are molded; and a plurality of resin material inlet ports, provided in an opposite side of said cartridge frame from a side where the contact surfaces are provided. The resin material has been flowed into the cartridge frame when the resin members are molded.

Cartridge and unit

A structure includes a rotatable rotating member, a blade, a support member, and a frame body. The blade extends in an axial direction of the rotating member and is in contact with or disposed close to a surface of the rotating member. The support member supports the blade such that one end side of the blade projects toward the rotating member in a lateral direction that intersects the axial direction. The frame body is formed by insert molding in which resin is injected while the support member is secured to a mold. The frame body clamps part of the support member so as to support the support member.

Image forming apparatus with frame body and detachable cartridge with integrated photosensitive drum

A cartridge is detachably mountable to a main assembly of an image forming apparatus. The cartridge includes a rotatable member, a blade member contacted to the rotatable member, and a frame configured to support the blade member and the rotatable member. The cartridge also includes a seal member configured to fill a gap between the frame and the blade member at a longitudinal end portion of the blade member.

Cartridge having a seal member filling a gap between a frame and a blade member

A cartridge detachably mountable to a main assembly of an image forming apparatus includes: a frame; an accommodating portion, constituted by the frame, for accommodating a developer; a seal portion for preventing the developer from being leaking out from the accommodating portion, wherein the seal portion is formed by injection molding at a seal forming portion provided on the frame and is projected from the seal forming portion; and a sprue which is formed integrally with the seal portion by a resin material remaining in a path for permitting flow of the resin material melted when the seal portion is formed by the injection molding and which is projected from the frame in a position different from a position of the seal portion so as to be higher than the seal portion on the basis of the frame.

Cartridge and image forming apparatus

Cartridge and unit with port for injection molding resin member

A manufacturing method of a cartridge that is detachably mountable to an apparatus main assembly of an image forming apparatus. The manufacturing method includes a step of integrally molding a cartridge electrode with a frame in a manner such that a mold is contacted to the frame to form a space including a first portion for forming a first contact portion, a second portion for forming a second contact portion, and a connecting portion branching from an injection portion into the first portion and the second portion, and electroconductive resin is injected into the space.

Manufacturing method for cartridge having a molded electrode

A cartridge detachably mountable to a main assembly of an image forming apparatus, includes: a rotatable member; a blade member contacted to the rotatable member; a frame, formed of a resin material, for supporting the blade member; and a seal member provided on the frame to be contacted to a portion of the blade member, opposite from a portion where the blade member is contacted to the rotatable member, in each of one end side and anther end side of the blade member with respect to an axial direction of the rotatable member, wherein the seal member is formed on the frame by injection molding for sealing a gap between the blade member and the frame.

Cartridge and unit with injection molded seal member

A cartridge is detachably mountable to an apparatus main assembly of an image forming apparatus. The cartridge includes a cartridge electrode formed on a frame. The cartridge electrode includes a first contact portion provided for being electrically connected to a main assembly contact of the apparatus main assembly and a second contact portion contacted to an electroconductive member. The cartridge electrode is integrally molded with the frame and further includes a portion that (i) is formed in a buffer portion and (ii) is formed from electroconductive resin.

Cartridge including cartridge electrode integrally molded with frame

A developing device frame unit supporting a regulating member regulating the layer thickness of developer on a developer carrier. The unit includes a frame having a seal forming portion, first and second, first and second end seals contactable to the carrier surface to prevent carrier-axial-direction leaking of the developer, and a blade sealer sealing between the regulating member and the frame to prevent developer leaking when the regulating member is mounted. The blade sealer is an elastomer resin material which is injection-molded with a metal mold and in the seal forming portion where the end seals are provided. The blade sealer connects the end seals with each other, and a protrusion provided by a squeezed-out portion of the resin material is provided by injecting, into a space defined by the metal mold, the seal forming portion, and the end seal seals, a resin material volume larger than a volume of the space.

Developing device frame unit, developing device, process cartridge, and manufacturing method of the developing device frame unit

A remanufacturing method for a developing device and a process cartridge includes a dismounting step of dismounting a regulating member from a development frame member, a cleaning step of cleaning a blade sealing member, and a mounting step of mounting the regulating member to the development frame member after the cleaning step.

Developing device, process cartridge, remanufacturing method for developing device and process cartridge

A cartridge detachably mountable to a main assembly of an image forming apparatus. The cartridge includes a rotatable member. A blade member, including a rubber portion, is contacted to the rotatable member, with a metal plate portion supported to the blade member. A frame, formed of a resin material, supports the blade member. A seal member, extending in a direction crossing an axial direction of the rotatable member so as to contact the rotatable member, is provided on the frame to be contacted to a portion of the rubber portion and the metal plate portion of the blade member. The seal member is formed on the frame by injection molding for sealing a gap between the blade member and the frame.

Cartridge and unit, for use with an image bearing member, having a seal member that seals a gap between a blade member and a frame

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Yokohama, Japan

Nobuharu Hoshi