Canon Kabushiki Kaisha

Kohei Koguchi

Isao Koishi

Katsuhiko Oba

Tomoya Tateishi

Osamu Sasaoka

Yoichiro Iizuka

Jumpei Nitta

Shuma Hiasa

Kei Hayashida

Tachio Kawai

Masatoshi Yamashita

Yuichiro Okawa

Kenji Watanabe

Takeo Kawanami

Shunsuke Hijikata

Fumiya Sawashima

Masaki Tanaka

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 according to the present invention includes an optical box, a housing having a discharge opening, a cover provided downstream of the optical box in a discharge direction in which a recording material is discharged through the discharge opening and forming a part of the housing, and a circuit board, wherein the circuit board includes a plurality of electronic components and a wiring board configured to electrically connect the plurality of electronic components, the circuit board is disposed in such a direction that a surface of the wiring board on which the plurality of electronic components is mounted intersects the discharge direction, and the wiring board is provided between the cover and the optical box in the discharge direction, and wherein, when viewed in a vertical direction, the optical box and the plurality of electronic components partially overlap each other.

Image forming apparatus having circuit board to convert supplied current

An image forming apparatus includes an image bearing member, a developer bearing member, a discharge unit, a stacking tray including a stacking surface on which the recording material is stacked, a replenishment port, a cover capable of moving between a closed position where the cover covers the replenishment port and constitutes at least part of the stacking surface and an open position where the cover exposes the replenishment port, and an information display unit for displaying information about a procedure for replenishing the developing container with the developer from the replenishment container.

Image forming apparatus including a display unit for displaying information about a procedure for replenishing developer

An image forming apparatus includes an image bearing member, a frame member including a support surface and made of metal, an exposure unit disposed such that an emission direction in which the light is emitted to the image bearing member is inclined with respect to the support surface, a support member made of metal and configured to support the exposure unit that is in an inclined posture with respect to the support surface, and a positioning member made of resin and configured to be in contact with the exposure unit and position the exposure unit. The support surface of the frame member is in contact with at least one of the support member or the positioning member, and wherein the exposure unit is configured to be attached to the frame member via the support member and the positioning member.

Image forming apparatus having improved structure for fixing an exposure unit to a frame

An image forming apparatus configured to form an image on a sheet, the image forming apparatus includes an apparatus body, and a detachable unit. The detachable unit includes a first positioned portion and a second positioned portion. The apparatus body includes a frame member having a first positioning portion and a second positioning portion which respectively engage with the first positioned and second positioned portion, so that the detachable unit is positioned with respect to frame member in the attaching direction and the first direction. The second positioning portion is arranged closer to a center portion of the detachable unit in the second direction than the first positioning portion.

Image forming apparatus including a detachable unit with positioning portions

An image forming apparatus includes a first metal plate provided with a through hole; a second metal plate provided opposed to the first plate; a third metal plate provided between the first plate and the second plate; and a fixing member fixing the first plate and the third metal plate to each other. The fixing member has a first surface and a second surface extending in a direction crossing the first surface. The third metal plate extends outward in a direction in which the first plate and the second plate opposes to each other, and the third metal plate is provided with a first projection penetrating the through hole, and wherein the first projection is fixed on the first surface. The first plate is fixed on the second surface of the fixing member.

Image forming device with frame having metal plates with improved resiliency

Image forming apparatus having a circuit board to convert supplied current

An image forming apparatus includes an attachment portion to which to attach a supply container for supplying a developer, a housing including a discharge portion for discharging a sheet in a discharging direction, a discharge tray including a first stack portion for stacking the sheet thereon, in which the first stack portion is configured to be movable between a closed position and an opened position, a top portion fixed to the housing, and a display portion and an operation portion arranged on the top portion. The top portion includes a first region, a first extension portion, and a second extension portion. As viewed along a vertical direction, the first extension portion and the second extension portion extend from the first region in the discharging direction, and at least a part of the first stack portion is located between the first extension portion and the second extension portion.

Growing community of inventors

Kanagawa, Japan

Kohei Koguchi