Canon Kabushiki Kaisha

Shuma Hiasa

Tomoya Tateishi

Osamu Sasaoka

Kohei Koguchi

Jumpei Nitta

Takeo Kawanami

Tachio Kawai

Akinori Mitsumata

Kenji Watanabe

An image forming apparatus includes a first toner cartridge to store first toner and is movable to a first attached position and a first retracted position with respect to a storage frame, and a second toner cartridge to store second toner and is movable to a second attached position and a second retracted position with respect to a second storage frame. A movable first support member supports the first toner cartridge, and a movable second support member supports the second toner cartridge. In a case where a length by which the first toner cartridge at the first retracted position projects from an opening in a body frame is a first length and a length by which the second toner cartridge at the second retracted position projects from the opening is a second length, the first length is larger than the second length.

Image forming apparatus having first and second retractable toner cartridges

An image forming apparatus includes a toner cartridge which is attachable to and detachable from a rotary through the opening of the body frame and is movable to an attached position where a discharge opening faces an inlet opening such that a toner storage portion and a developing storage portion communicate with each other via the discharge opening and the inlet opening and a retracted position where the toner cartridge is retracted from the attached position, with respect to a storage frame. In addition, one or more motors (i) move the toner cartridge from the attached position to the retracted position and (ii) rotate the rotary with the toner cartridge about a rotation axis between (ii-1) a developing posture in which a developing roller faces a photosensitive drum and (ii-2) a replacement posture in which detachment of the toner cartridge from the rotary is allowed. The toner cartridge is configured such that at least part of the toner cartridge projects outside the body frame in a state in which the toner cartridge is at the retracted position.

Image forming apparatus

An image forming apparatus includes a rotary including a developing roller, and a storage frame including a storage chamber to store toner to be supplied to the developing roller and an inlet opening communicating with the storage portion. In addition, a body frame has an opening and accommodates the rotary, and a toner cartridge includes a toner frame including a toner storage hollow storing the toner and a discharge opening communicating with the toner storage hollow and is attachable to the rotary through the opening. The toner is supplied from the toner storage hollow to the storage chamber in a state in which the toner cartridge is at the attached position. A moving assembly driven by a driver moves the moving assembly to move the toner cartridge from the attached position to a retracted position and moves the toner cartridge from the retracted position to the attached position.

Image forming apparatus having a rotary and detachable toner cartridges

An image forming apparatus includes a rotatable rotary including a developing roller and a storage frame including a storage portion to store toner, a body frame with an opening, a toner cartridge which is attachable to and detachable from the rotary through the opening, which is movable to an attached position and a retracted position, a moving device to move the toner cartridge from the attached position to the retracted position, and an opening/closing member provided to be movable between a closed position and an open position. The opening/closing member moves from the closed position to the open position in an interconnected manner with movement of the toner cartridge from the attached position to the retracted position by the moving device.

Image forming apparatus having detachable toner cartridges

An image forming apparatus which can be replenished with toner using a replenishment cartridge and communicates with a memory device of the replenishment cartridge via a first electric contact portion and a second electric contact portion after a replenishment cartridge is attached to the image forming apparatus in an installation portion. The replenishment cartridge is prevented from being detached by a regulation unit when it is in the replenishment position.

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Kanagawa, Japan

Shuma Hiasa