Canon Kabushiki Kaisha

Yuichi Fukui

Shinjiro Toba

Sohta Sugimoto

Masaaki Sato

Akira Suzuki

Hiroyuki Munetsugu

Goshi Ozaki

Mitsuhiro Sato

Shinichi Nishida

Tetsushi Uneme

Noritomo Yamaguchi

Masanari Morioka

Takeo Kawanami

Yasuyuki Egami

Hiroshi Takarada

Fumito Nonaka

Toshiki Fujino

Yosuke Kashiide

Naoki Hayashi

Kazuhiko Kanno

Tachio Kawai

Tatsuya Suzuki

Nobuharu Hoshi

Shunsuke Uratani

Kuniaki Hirukawa

Satoshi Nishiya

Ryosuke Nakazawa

Tetsuya Numata

Yu Fukasawa

Jun Miura

Yukio Kubo

Shunsuke Hijikata

Kengo Sakai

Fumiya Sawashima

Taiji Watanabe

Seiya Ishikawa

Yohei Anzai

Toshiaki Takeuchi

Takashi Kimura

Shuichi Gofuku

Masatoshi Yamashita

Naoki Maeda

Takayuki Yada

Masahiro Suetsugu

A cartridge includes a casing, a photosensitive drum rotatably supported by the casing, a charging roller rotatably supported by the casing, and a developing roller rotatably supported by the casing. A shield member is supported by the casing and including a shield portion capable of covering a photosensitive member, the shield member being movable between a first position in which the shield portion covers the photosensitive member and a second position in which the photosensitive member is more exposed to outside of the cartridge by the shield portion than when the shield member is in the first position. An engaging portion is engageable with the shield member to hold the shield member in the second position when the shield member is in the second position, and a force receiving portion is provided for receiving an external force to disengage the engagement between the engaging portion and the shield member.

Cartridge and image forming apparatus

An image forming apparatus includes a main assembly and a plurality of process cartridges detachably mountable to the main assembly. The process cartridges each includes a photosensitive member, a first frame rotatably supporting the photosensitive member, a developing member for depositing toner onto the photosensitive member, and a second frame rotatably supporting the developing member and movable relative to the first frame between a developing position for the developing member to deposit the toner onto the photosensitive member and a retracted position in which the developing member is more remote from the photosensitive member than in the developing position. The apparatus further includes a connecting member connecting at least two of the second frames of the process cartridges and removable from at least one of the process cartridges and from the main assembly.

Image forming apparatus, process cartridges, and connecting member

An image forming apparatus to which a toner container is detachably mountable includes a mounting portion to which the toner container is detachably mountable and which includes a receiving port for receiving toner supplied from the toner container, a passage for permitting passing of the toner received through the receiving port and provided with a through hole, and a filter portion provided so as to cover the through hole and for permitting passing of air; and an accommodating portion configured to accommodate the toner received through the receiving port. At least a part of the through hole overlaps with the receiving port as viewed in a horizontal direction perpendicular to a direction of gravitation.

Image forming apparatus and image forming system

Toner pack

A cartridge includes a photosensitive member, a charging member capable of charging the photosensitive member, and a developing member for depositing toner onto the photosensitive member. A unit includes the developing member and is movable between a developing position in which the toner is capable of being deposited onto the photosensitive member from the developing member and a spaced position in which at least a part of the developing member is spaced from the photosensitive member. The cartridge further includes a contact force receiving portion for receiving a contact force for moving the unit to the developing position when the unit is in the spaced position. The cartridge also includes a spacing force receiving portion for receiving a spacing force for moving the unit to the spaced position when the unit is in the developing position.

Electrophotographic image forming apparatus and cartridge

A cartridge includes a photosensitive drum rotatable about an axis extending in an axial direction; a memory including a storing element configured to store information, a memory contact electrically connected to the storing element, and a substrate having a surface on which the memory contact is provided; and a frame which supports the photosensitive drum, on which the substrate is mounted, and which includes a first end with respect to the axial direction and a second end opposite from the first end. The frame includes a container provided with an accommodating chamber for accommodating a developer collected from the photosensitive drum and with an opening communicating with the accommodating chamber and includes a mounting member mounted on the container so as to cover the opening. The mounting member includes a supporting portion for supporting the substrate.

Cartridge, toner cartridge, and image forming apparatus

A toner container includes a toner accommodating portion, a discharge portion, a shutter, a sealing member, and a guiding portion. In a case where a direction from the toner accommodating portion toward the discharge portion in a rotational axis direction is a first direction, where a direction opposite to the first direction is a second direction, and where an end portion of the sealing member on a downstream side of the first direction is a first end portion, a downstream end portion of the guiding portion is positioned downstream of the first end portion of the sealing member with respect to the first direction. The downstream end portion of the guiding portion overlaps with the sealing member as viewed in the rotational axis direction, and includes an inclined surface inclined so as to approach the contact surface of the seal member as it goes in the second direction.

Toner container including guiding portion with a guiding surface

A photosensitive member unit includes a photosensitive member and a drive receiving portion receiving a driving force for rotating the photosensitive member; a developing unit joined to the photosensitive member unit so as to be movable relative to the photosensitive member unit between a first position in which a developing roller is in contact with the photosensitive member and a second position in which the developing roller is spaced from the photosensitive member; and a transmission member transmitting the driving force to the developing unit, wherein the developing unit has a driven member driven by the transmission member, and the transmission member is configured to engage with the driven member to drive the driven member with the developing unit located in the first position, and to engage with the driven member to drive the driven member with the developing unit located in the second position.

Image forming apparatus and process unit

A control memberfor controlling transmission and blocking of a rotational force by a clutch is rotatably supported by a supporting member which supports a developing frame. a locking portion provided on the control memberrotates between a position retracted from a locked portion of the clutch and a position for engaging with the locked portion.

Cartridge having a member for transmitting a driving force for rotating a developing roller

A cartridge includes a photosensitive member, a developing member for depositing toner onto the photosensitive member, and a coupling member capable of receiving a driving force for rotating the developing member. The cartridge also includes a movable portion movable between a driving force transmitting position for permitting transmission of the driving force from the coupling member to the developing member and a driving force interrupting position for interrupting the transmission of the driving force from the coupling member to the developing member. A holding portion is provided for holding the movable portion in the driving force interrupting position when the movable portion is in the driving force interrupting position. The movable portion is capable of taking the driving force transmitting position and the driving force interrupting position in a state where the developing member is in a position where the toner is capable of being deposited on the photosensitive member.

Supplying port member for toner pack

Growing community of inventors

Yokosuka, Japan

Yuichi Fukui