Canon Kabushiki Kaisha

Ryuji Hamasaki

Tetsuji Suzuki

Kenichi Iida

Keisuke Yoshida

Jun Hara

Shunsuke Okazaki

Atsuyuki Yuzawa

Fumiya Sawashima

Eiji Wakiyama

Daisuke Usami

Hirofumi Hori

Mika Maejima

An image forming apparatus to which an accessory unit including an accessory connector is detachably attachable includes a top cover including a stacking unit on which a recording medium is to be stacked and a unit attachment portion to which the accessory unit is attachable, a device connector that is disposed on a unit attachment portion and is connectable to the accessory connector, and an operation unit including an input unit configured to receive an input operation. The top cover includes a first cover end with respect to a width direction. The operation unit and the unit attachment portion are disposed between the first cover end and the stacking unit, and the unit attachment portion is disposed downstream of the operation unit in a predetermined direction as viewed in the vertical direction in a state where the input unit faces in the predetermined direction.

Image forming apparatus

An image forming apparatus includes a plurality of cartridges, a fixing device, a fan and a duct. The duct guides air supplied from the fan to a predetermined cartridge closest to the fixing device of the plurality of cartridges. At one end side of the predetermined cartridge in the rotational axis direction, the duct includes a first part for discharging the air supplied from the fan in a first direction toward downward from upward to a top surface of the cartridge, and a second part for discharging the air supplied from the fan, above the top surface in a second direction along a rotational axis direction of a photosensitive member. The air discharged from the first part and the air discharged from the second part collide with each other above the top surface.

An image forming apparatus includes the following: an image forming portion; a first metal side plate and a second metal side plate provided opposite each other with respect to the image forming portion; an antenna for communicating with external equipment; a housing including a top cover that is provided above the first metal side plate and the second metal side plate in a vertical direction, and a side cover that is provided on an outer side opposite to an inner side where the image forming portion is provided with respect to the first metal side plate, wherein the image forming apparatus further includes a support member provided on the first metal side plate, the support member including a housing support portion that supports at least one of the top cover and the side cover, and an antenna support portion that supports the antenna.

An image forming apparatus including: an apparatus frame; an exterior cover configured to cover the apparatus frame; a wireless communication module including an antenna for wireless communication and a board on which the antenna is mounted, and disposed between the apparatus frame and the exterior cover; and a fixing unit configured to fix the wireless communication module to the exterior cover, and including a screw screwed into a screw hole disposed on the exterior cover via a hole disposed on the board; wherein the board has four sides including a first side near the antenna and a second side extending along the first side and distant from the antenna, and the hole is disposed at a position close to the second side.

Image forming apparatus having a wireless communication module

An image forming apparatus includes: an image forming portion; a first metal side plate and a second metal side plate; an antenna; and a housing on which a discharging port is disposed, wherein the housing includes a top cover that is disposed at a position vertically higher than the first metal side plate, wherein in a region on a downstream side with respect to the antenna in a discharging direction where a recording material is discharged from the discharging port, an upper end of the first metal side plate is located at a position vertically lower than the antenna, and a resin support portion connected to the first metal side plate is disposed in the region such that the resin support portion supports the top cover, wherein the antenna and the resin support portion are disposed along the upper end of the first metal side plate.

An apparatus includes first and second frames disposed to support a forming unit, an outer surface member for covering the first frame, and a circuit board disposed between the first frame and the outer surface member. The circuit board includes a printed board, a first electronic component disposed on a mounting surface of the printed board, and a second electronic component that is smaller than the first electronic component and disposed on the mounting surface of the printed board. The circuit board is disposed so that the mounting surface faces the first frame and extends in a direction that intersects with a plane of the outer surface member.

Image forming apparatus for forming an image on a recording material

An image forming apparatus includes a first unit, a second unit fixed to the first unit at a portion upstream of the first unit in a conveyance direction in which the sheet is conveyed, and an electric board. In the image forming apparatus, a disposition of the electric board is restricted by the first unit and the second unit.

An image forming apparatus includes an apparatus body having a cartridge accommodation portion, an opening/closing member attached to the apparatus body and being movable between a first position at which the cartridge accommodation portion is exposed to the outside of the image forming apparatus and a second position at which the opening/closing member covers the cartridge accommodation portion and an operation panel unit for operating the image forming apparatus. The operation panel unit has a sheet portion and a switch portion to transmit a user's operation to the image forming apparatus via the sheet portion. The sheet portion is provided in the opening/closing member and is disposed at such a position as to at least partially overlap the cartridge accommodation portion on an insertion/removal trajectory of the cartridge and to cover the switch portion provided in the apparatus body in a state in which the opening/closing member is at the second position.

A sheet feeding apparatus includes an abutment part having an abutment area against which a leading edge of a sheet abuts and a moving part to move the abutment part between first and second positions. The moving part includes a link member having an engage portion to engage with a positioning portion, the link member being joined with the abutment part, and an urging member to urge the link member such that the abutment part moves toward the second position. The abutment part is retained at the first position against an urging force of the urging member in a case where the positioning portion is engaged with the engage portion of the link member.

Sheet feeding apparatus and image forming apparatus

Provided is an image forming apparatus in which a movable member comes close to an opening to cover a part of the opening in the open state of an opening and closing member. In the course of change from the open state to the state in which an entering portion enters the inside of the housing, the movable member is pressed by the entering portion to move away from the opening and the opening and closing member moves toward the opening. In the closed state of the opening and closing member, the movable member is placed in a position further away from the opening than in the open state, and the opening and closing member is in the position in which the opening and closing member covers a part of the opening while forming a gap between the opening and closing member and the housing.

An image forming apparatus includes a container that contains a developer, a temperature information acquisition unit that acquires temperature information of the container, and a control unit that controls an image formation operation for forming an image. During the image formation operation, the control unit executes a suspension operation for suspending the image formation operation in the case that t&#x2265;t(t&#x2260;0) is satisfied, where t is defined to be an elapsed time from when a temperature corresponding to the temperature information of the container exceeds a predetermined threshold temperature T, and where tis defined to be an exceeding time threshold value related to a period during which the temperature corresponding to the temperature information of the container remains higher than the threshold temperature T.

A sheet feeding device includes a sheet storage unit, a stacking unit, a raising unit, a sheet detection unit, an attachment detection unit, and a control unit. The sheet storage unit may be attached to and drawn out of an apparatus main body. The stacking unit is raised by the raising unit and is lowered when the sheet storage unit is drawn out. The attachment detection unit detects attachment of the sheet storage unit to the apparatus main body. The control unit determines whether an amount of sheets stacked on the stacking unit exceeds a predetermined amount based on detection results. If the sheet detection unit continues to detect sheets when the sheet storage unit goes from attached, to not attached, to attached to the apparatus main body, the control unit determines that the amount of sheets stacked on the stacking unit does not exceed the predetermined amount.

Growing community of inventors

Tokyo, Japan

Ryuji Hamasaki