Canon Kabushiki Kaisha

Shogo Satomura

Akira Suzuki

Hiroomi Matsuzaki

Makoto Hayashida

Tetsuo Uesugi

Jun Kamiya

Fumito Nonaka

Takahiro Akimoto

Yoshikazu Asai

Sho Nagatsu

Takahito Ueno

Shigeo Miyabe

Nobuharu Hoshi

Kazuki Matsumoto

Takayoshi Kihara

Kazunori Suzuki

Bunro Noguchi

Go Shindo

Toshiteru Yamasaki

Masatomi Yoshida

A rotatable operation apparatus includes a rotatable operation member, a magnet having alternately magnetized magnetic poles, first and second magnetic members respectively including first and second teeth, a body frame, and a detector. A magnetized direction of each magnetic pole is parallel to a predetermined axis about which the rotatable operation member rotates. The magnet has a ring shape and is configured to rotate about the predetermined axis as the rotatable operation member rotates. The rotatable operation apparatus generates an operation force according to a change in positions of the magnetic poles, caused by the rotation of the magnet, relative to positions of the first tooth and the second tooth. The magnet, the first magnetic member, and the second magnetic member are housed inside the body frame. When viewed from a thrust direction of the magnet, the detector is disposed at a position that does not overlap with the magnet.

Rotatable operation apparatus and electronic apparatus

An electronic apparatus includes a rotatable operation member that can be rotationally operated, a base member, a magnet having alternately magnetized N and S poles and rotatable integrally with the rotatable operation member, and first and second magnetic members disposed so that the magnet is disposed between them in an axial direction of a rotational center axis of the rotatable operation member and having a plurality of comb tooth portions. In the axial direction, the first magnetic member, the magnet, and the second magnetic member are disposed on an opposite side of the base member from the rotatable operation member. A part of an outer circumferential portion of the rotatable operation member is exposed to an outside from an opening provided on an exterior member of the electronic apparatus. The magnet, the first magnetic member, and the second magnetic member are covered with the exterior member.

Electronic apparatus

A cartridge includes a cartridge frame member including a developer accommodation portion, an image bearing member rotatably provided to the cartridge frame member, an end sealing provided to the cartridge frame member and abutting on an end of the image bearing member in a longitudinal direction, a cleaning unit for acting on the image bearing member, a sealing portion integrally provided with the cartridge frame member and abut on an end of the cleaning unit in the longitudinal direction, a sheet member provided along the longitudinal direction and abut on the image bearing member at an end of the sheet member in a direction that crosses the longitudinal direction, and a fixing portion for fixing the sheet member and the cartridge frame member. The sealing portion and the fixing portion are integrally formed with the cartridge frame member.

Cartridge and method for manufacturing cartridge

A multicolor molded component used in an image forming apparatus includes a molded portion molded with a first resin, and a bearing portion configured to be movable with respect to the molded portion, and to support a rotating member. The molded portion includes a regulation portion, and the bearing portion is formed by injection molding to be engaged with the regulation portion in such a manner as to be movable in a first direction with respect to the molded portion.

Multicolor molded component having a bearing portion that engages with regulation portions and cartridge having the same

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 includes a rotating body, a blade that extends in an axial direction of the rotating body and is disposed on the rotating body, a supporting member that is fixed to the blade and configured to support the blade in such a manner that the blade protrudes toward the rotating body in a shorter direction crossing the axial direction, a frame body including a placing surface that supports the supporting member, and a fixed portion that is disposed on the placing surface via the supporting member and fixed to the frame body. The supporting member includes a cut portion extending in the axial direction. The fixed portion includes a deformed portion deformed by given energy, and the deformed portion engages with the cut portion so that movement of the supporting member with respect to the frame body is restricted.

Cartridge and image forming apparatus

The present disclosure relates a developer container for accommodating a developer. The developer container includes a conductive path. The conductive path includes a resin.

Developer container, developing device, process cartridge, and image forming apparatus

A developer accommodating container for accommodating a developer, includes: a frame provided with a hole; a rotatable member penetrating the hole; and a seal member, provided on the frame by injection molding, for sealing a gap between a circumference of the hole of the frame and an outer peripheral surface of the rotatable member to prevent the developer from leaking out of the developer accommodating container. The seal member includes a projected portion which projects toward an inside of the hole and contacts the outer peripheral surface of the rotatable member.

Developer accommodating container and process cartridge

A developer container includes a frame configured to store developer, a conductive member provided on the frame, and a conductive contact member formed of resin on an outer side of the frame so as to be in contact with a part of the conductive member that is exposed from the frame to establish conduction. The contact member includes a protruding portion that is disposed at a portion to be in contact with the conductive member and protrudes toward the conductive member. The conductive member includes an engaging portion that is formed to fit with the protruding portion and configured to engage with the protruding portion. As a result, stable conductivity is secured by simplifying the configuration of the contact member for electrically connecting the conductive member provided on the frame, to an image forming apparatus main body.

Developer container, developing device, process cartridge, method for forming developer container, method for forming developing device, and method for forming process cartridge

A developing device for developing with developer an electrostatic image formed on an image bearing member includes a developer carrying member; a developing chamber in which the developer carrying member is provided; a developer accommodating chamber, for accommodating developer to be fed to the developing chamber; a shaft rotatably supported in the accommodating chamber; a developer feeding member, mounted on the shaft; a light transmitting member for permitting light to pass into the accommodating chamber to detect an amount of the developer in the accommodating chamber; and a developer scattering preventing member provided on an inner wall of the accommodating chamber so as to overlap with the light transmitting member with respect to an axial direction of the shaft as seen in a direction perpendicular to the developer scattering preventing member, an upper end of the developer scattering preventing member being located below the light transmitting member.

Developing device, process cartridge, and image forming apparatus

A process cartridge is configured to perform a contact and separation operation between a developing roller and a photosensitive drum. The process cartridge is provided with a toner scattering prevention sheet. The process cartridge includes a container a part of which is provided with a contact portion for regulating a spacing range between the developing roller and the photosensitive drum.

Growing community of inventors

Kawasaki, Japan

Shogo Satomura