Ricoh Company, Ltd.

Starlite Co., Ltd.

Emi Kita

Kiyonori Tsuda

Susumu Tateyama

Yuki Oshikawa

Tatsuya Kubo

Shinnosuke Koshizuka

Kentaro Nodera

Akihiro Takayama

Teppei Kikuchi

Naoki Nakatake

Koichi Kato

Kohichi Utsunomiya

Hiroaki Nieda

Takuzi Yoneda

Hideo Yoshizawa

Goro Katsuyama

Yutaka Takahashi

Tomohiro Kubota

Masayuki Yamane

Yoshiyuki Shimizu

Seiji Terazawa

Kazuhisa Sudo

Kenzo Tatsumi

Nobuyuki Taguchi

Takeroh Kurenuma

Satoshi Narumi

Masato Tsuji

Manabu Hamada

Junichi Terai

Keiko Matsumoto

Fumio Ogata

Sho Tsuritani

Kazuki Matsumoto

Mugijirou Uno

Maiko Koeda

Keisuke Katoh

Satoru Yoshida

Nobuo Takami

Mitsutoshi Kichise

Shinichi Arasawa

Satoru Miyamoto

Kenji Nakamura

Takeshi Sakashita

Noriaki Funamoto

Yoshitaka Fujinuma

Hiroyoshi Haga

Yasuhide Ohkubo

Maiko Kondo

Takashi Tanaka

Hiroyuki Uenishi

Takeshi Yamashita

Minoru Toyoda

Hiroshi Okamoto

Kuniyori Takano

Takuya Akiyama

Hiroyuki Okaji

Shinya Kikutani

Klyonori Tsuda

A powder container includes a powder chamber for containing powder for forming images, a powder outlet formed in a face of the powder container, and a shutter assembly to open and close the powder outlet and including first and second shutters. The first shutter is movable between a sealing position to close the powder outlet and an open position to open the powder outlet and includes a pressed member to cancel retention of the first shutter at the sealing position. The second shutter includes a pressing projection that interferes with the pressed member of the first shutter and is movable between a shielding position to cover the pressed member without interference between the pressing projection and the pressed member and a releasing position to press the pressed member with the pressing projection.

Powder container, powder supply device, and image forming apparatus including same

Toner cartridge

An access restriction device for a consumable component of an apparatus body includes an access restriction cover is rotatably attached to a side surface of the apparatus body; a lock mechanism to lock and unlock opening of the cover; the cover openable in an unlocked state of the lock mechanism; a hinge portion disposed at a lower position in a direction of gravity and a position closer to the apparatus body in a horizontal direction than a center of gravity of the cover in a closed state of the cover, the cover being rotatably coupled to the apparatus body via the hinge portion; and an engaged portion disposed at a position higher in the direction of gravity than the center of gravity of the cover in the closed state. The cover is engaged with an engaging portion of the lock mechanism via the engaged portion.

Access restriction device for consumable component and image forming apparatus including the access restriction device

A powder container includes a collection port to receive and collect powder from outside; a driven unit that is disposed on one end side in a width direction of the powder container and to which drive is transmitted from outside; a first rotary shaft that rotates by the drive transmitted to the driven unit; a first gear disposed on other end side of the powder container and rotating with the first rotary shaft; a second rotary shaft that is disposed on the other end side, that includes a second gear to which drive is transmitted from the first gear, and that rotates with the second gear; and a driving gear that is disposed on the second rotary shaft in a position between the second gear and a central portion in the width direction of the powder container, and that rotates with the second rotary shaft to transmit drive to outside.

Powder container, process cartridge, and image forming apparatus

A developer container includes a developer chamber configured to store a developer, a discharge port configured to discharge the developer in the developer chamber to a developing device, a developer conveyance path configured to transport the developer in the developer chamber to the discharge port, a supply port configured to supply the developer in the developer chamber to the developer conveyance path, a conveyor disposed in the developer conveyance path and configured to transport the developer to the discharge port, a partition between the developer conveyance path and the developer chamber, and a communication port disposed in the partition between the discharge port and the supply port and connecting the developer conveyance path with the developer chamber.

Developer container, developer supply device, process cartridge, and image forming apparatus including a communication port in a partition

A powder storage container is provided. The powder storage container includes a container body, a discharge port, a conveyer, a stirrer, a return port, and a partition wall. The container body is configured to contain powder. The powder contained in the container body is dischargeable through the discharge port. The conveyer is configured to convey the powder to the discharge port. The stirrer is configured to stir the powder contained in the container body by rotating. The return port is disposed outside a rotational locus of the stirrer in a radial direction, and the powder conveyed by the conveyer is returnable through the return port toward the stirrer. The partition wall is disposed between the stirrer and the return port with at least a part of the partition wall positioned above the return port.

Powder storage container and image forming apparatus

A powder container is removably mountable in one of a process cartridge and an image forming apparatus. The powder container includes a discharge port to discharge powder stored inside the powder container, a collection port to collect the powder from outside of the powder container, a first shutter to open and close the discharge port, a first opening and closing member disposed at one end of the powder container in a longitudinal direction of the powder container to open and close the first shutter, a second shutter to open and close the collection port, and a second opening and closing member disposed at another end of the powder container in the longitudinal direction of the powder container to open and close the second shutter.

A powder container is removably mountable in one of a process cartridge and an image forming apparatus. The powder container includes a discharge port to discharge powder stored inside the powder container, a collection port to correct the powder from outside of the powder container, a first shutter to open and close the discharge port, a first opening and closing member to open and close the first shutter, a second shutter to open and close the collection port, a second opening and closing member to open and close the second shutter, and a shaft portion to link the first opening and closing member and the second opening and closing member.

Growing community of inventors

Tokyo, Japan

Emi Kita