Canon Kabushiki Kaisha

Axell Corporation

Yuuki Nakamura

Makoto Hayashida

Takahito Ueno

Toshiaki Takeuchi

Teruhiko Sasaki

Yasunori Toriyama

Noriyuki Komatsu

Kazuo Chadani

Masato Tanabe

Shunsuke Uratani

Yoshifumi Takeyama

Sadaaki Tani

Naoki Hayashi

Tomonori Mori

Tetsushi Uneme

Satoru Motohashi

Kensuke Suzuki

Shota Nakamura

Tetsuya Numata

Osamu Anan

Tetsuo Uesugi

Fumito Nonaka

Toshiki Fujino

Naoki Maeda

Takayuki Yada

Toshiteru Yamasaki

Kohichi Takahashi

Shigeo Miyabe

Takashi Yano

Koji Yamaguchi

Akihiro Fujiwara

Yoshiyuki Batori

Kanji Yokomori

Takeshi Arimitsu

Takatoshi Hamada

Daisuke Makiguchi

Shigemi Kamoshida

Tsukasa Abe

Hideki Kakuta

Tomofumi Kawamura

Go Torii

Joji Goto

Atsushi Takasaka

Kazuki Kyakuno

Tatsuro Harada

A cartridge including a rotatable image bearing member which bears a developer, a cleaning member for removing a developer remaining on a surface of the image bearing member, the cleaning member having a contact portion in contact with the surface of the image bearing member and a support portion which supports the contact portion, a developer recovering portion which recovers the developer removed by the cleaning member, a first conveyance member which is disposed inside the developer recovering portion and conveys the recovered developer in a rotation axis direction of the image bearing member, a second conveyance member which conveys the developer conveyed by the first conveyance member in a direction crossing the rotation axis direction toward a discharge port provided in the developer recovering portion, and a third conveyance member to convey the developer toward the center of the photosensitive drum in the rotational axis direction. The second conveyance member is disposed at an inner side of the contact portion of the cleaning member with respect to an end part of the contact portion of the cleaning member.

Process unit including first, second and third conveyance members for conveying developer

A toner container includes a first chamber for accommodating toner and provided with an outlet port through which the toner is discharged outside of the toner container, a second chamber provided with an inlet port and for accommodating toner to be received from an outside of the toner container through the inlet port, a stirring member for stirring the toner accommodated in the first chamber and to rotate about a rotational axis, and an air supply unit configured to supply air for discharging the toner accommodated in the first chamber to an outside of the toner container through the outlet port. The air supply unit, the first chamber, and the second chamber are aligned in this order in a direction of the rotational axis.

Toner container

A cartridge is used, which has a receptacle with a replenishment port from which a developer is replenished and which is configured to receive the developer replenished from the replenishment port. The receptacle has a transport region that is located lower than the replenishment port in the direction of gravity, where the received developer is transported in a transport direction. The receptacle is provided with a first filter and a second filter downstream and upstream of the replenishment port respectively in the transport direction. The first filter and second filter restrict passage of the developer while allowing passage of air. The first filter or the second filter is located higher than the transport region in the direction of gravity.

Process cartridge having a receptacle for developer replenishment

A foreign substance collection apparatus includes: a frame body; a photosensitive drum; a cleaning roller which collects foreign substances from a surface of the photosensitive drum; a collecting roller which further collects the foreign substances having been collected by the cleaning roller from the cleaning roller; and a scraping member which scrapes off the foreign substances from the collecting roller. A foreign substance collecting portion included in the frame body has, in a posture during use: a first inner bottom surface which is positioned below the scraping member in a gravity direction; an outer bottom surface which is positioned further below the first inner bottom surface; and a connecting surface which intersects the first inner bottom surface and the outer bottom surface and which connects the first inner bottom surface and the outer bottom surface with each other.

Foreign substance collection apparatus, process cartridge, and image forming apparatus

A developer container includes a frame having a developer storage chamber which stores a conveying member, a developing chamber in which a developer bearing member and a supplying member are arranged, a partition partitioning the developer storage chamber and the developing chamber and provided with a first opening, and a second opening which connects an interior of the developing chamber and an exterior of the frame. A filter allows passage of air and restricts passage of the developer, with the filter being fixed to the frame so as to cover the second opening. The conveying member is deformable such that the developer is conveyed from the developer storage chamber to the developing chamber via the first opening by deformation of the conveying member being released, and the conveying member conveys the developer such that the developer passes above the supplying member.

Developer container, process cartridge, and image forming apparatus

An image forming apparatus includes a main assembly and a cartridge attached to the main assembly in an attaching direction. The main assembly includes a movable member movable between first and second positions and having first and second engaging portions to engage with first and second protrusions on the cartridge, and an urging member urging the movable member from the second position to the first position. The first engaging portion has a surface-to-be-abutted, a first surface-to-be-supported, and a recessed surface, and the second engaging portion has a regulating surface and a second surface-to-be-supported.

Image forming apparatus, cartridge and image forming apparatus system having erroneous cartridge insertion prevention

A method for disassembling a developing device. The developing device includes a frame configured to store a developer, a developer bearing member, a regulation member configured to regulate the developer borne by the developer bearing member, and a fixing member configured to fix the regulation member to the frame. The fixing member has a holding portion configured to hold the regulation member. The developing device includes a cover portion attached to the regulation member and configured to cover at least a part of the holding portion. The disassembling method includes cover removing for removing at least a part of the cover portion to reduce the size of a region of the holding portion covered by the cover portion.

Method for disassembling developing device and method for recycling developing device

A technique enabling downsizing of an image forming apparatus is provided. A cleaning unitattachable to and detachable from an apparatus main body of an image forming apparatusthat forms an image on a recording materialis provided, with this cleaning unitincluding: a photosensitive drum; and a cleaning frame bodythat supports the photosensitive drumand that includes an openingthrough which laser lightfor exposing the photosensitive drumcan pass, wherein the openingis configured such that a width of the openingin a scanning direction in an irradiation range of the light for exposing the photosensitive drumbecomes greater toward a side of the photosensitive drumfrom a side of a light source of light for exposing the photosensitive drum

Cartridge, process cartridge, and image forming apparatus

A remanufacturing method of a developing device is provided. The developing device includes a frame configured to store developer, a developer carrying member configured to carry the developer, a regulating member including a regulating portion configured to regulate the developer carried on the developer carrying member, and a storage member configured to store the developer, the storage member being mounted on the regulating member. A storage portion configured to store the developer and a first opening communicating with the storage portion are formed between the storage member and the regulating member, the first opening is opposed to an exposed portion of the developer carrying member, and the exposed portion is exposed to an outside of the frame. The remanufacturing method includes forming a communicating hole communicating with the storage portion, and removing the developer from the storage portion.

Developing device and remanufacturing method of developing device

Process cartridge for image forming apparatus

An image forming apparatus includes a stopper movable between a stopping position in which the stopper contacts with a downstream end portion of a cartridge, having a first contacting portion and a second contacting position, in a mounting direction, to stop the cartridge from being moved in the mounting direction and a non-stopping position in which the stopper is retracted from the stopping position so as not to stop the cartridge from being moved in the mounting direction. The stopper moves from the stopping position to the non-stopping position in conjunction with movement of a movable member from a first position to a second position.

A developer container includes a developer bearing member for bearing developer, a conveying member which conveys the developer, and a frame. In the frame, a partition partitions a developer storage chamber and a developing chamber and includes a first opening which connects the developer storage chamber with the developing chamber, and a second opening which connects an interior of the developing chamber and an exterior of the frame. A sealing member suppresses leakage of the developer from between the frame and the developer bearing member, and a filter allows passage of air through the second opening and restricts passage of the developer through the second opening. The conveying member is deformable such that the developer is conveyed from the developer storage chamber to the developing chamber via the first opening by deformation of the conveying member being released.

Growing community of inventors

Mishima, Japan

Yuuki Nakamura