Canon Kabushiki Kaisha

Takehito Osada

Shoichi Zensai

Yasuhiko Fuse

Kenji Watanabe

Takashi Kuwata

Koji Kawamura

Keita Nakajima

Motohiro Furusawa

Minoru Kawanishi

Takayuki Mizuta

Kenji Abe

Ko Katahira

Ken-ichiro Isobe

Tomonari Inoue

Tsutomu Ishida

Ken-Ichiro Isobe

To enable placement of a regulating member which regulates a position of an end of a paper sheet at a desired position, and stable sheet feeding. A fixing member for standard size is guided to engage with a fixing hole for standard size and, in a state where the fixing member for standard size positions a trailing end regulator, a fixing member for non-standard size does not engage with a rack gear.

Stacking apparatus and image forming apparatus

Provided is an image forming apparatus, including; an imaging forming unit for forming a toner image on one surface of a recording material; a fixing unit that includes a heating unit and heats and fixes the toner image formed on the one surface; a discharging unit for discharging the recording material, on which the toner image is fixed, to a discharged paper tray; and a guide member that is disposed between the fixing unit and the discharging unit and forms a recording material conveying path for conveying the recording material from the fixing unit to the discharging unit. On the guide member, a blowing port to send air to the recording material conveying path and a suction port to suck air from the recording material conveying path are disposed on a same surface so as not to cross over the recording materials.

Image forming apparatus having a suction port and a blowing port arranged at different positions

An image forming apparatus comprises a light-emission unit, a reflecting member, a light-receiving unit, a detection unit, a ventilation unit configured to send air to the reflecting member, and a control unit. The control unit adjusts at least one of an operation duration and an airflow rate of the ventilation unit, in accordance with a detection signal outputted by the light-receiving unit when a sheet is not at a position where light crosses a conveyance path.

Image forming apparatus that has sheet sensor

A sheet conveying apparatus includes a guide unit to guide a sheet conveyed by a sheet conveyance portion. The guide unit includes a first movable guide, a second movable guide, and a linking mechanism having an intermediate member through which the first and second movable guides are linked movably with respect to each other. A conveyance regulating portion is supported by the intermediate member and guides the sheet passing through a first conveyance path toward the sheet conveyance portion and guides the sheet that is switched back by the sheet conveyance portion toward a second conveyance path.

Sheet conveying apparatus and image forming apparatus

A toner image is formed on a first sheet surface and then heated. A conveyance unit includes a first rotary member configured to contact the first sheet surface and a second rotary member configured to contact a second sheet surface opposite to the first sheet surface. A conveyance guide is provided with an opening through which air is blown to the first sheet surface. The conveyance guide includes a first surface part and a second surface part. The first surface part is disposed on a location in a width direction overlapping with a location in the width direction of the first rotary member. In at least a part of a range between the opening and the first rotary member in the sheet conveyance direction, the first surface part is protruded with respect to the second surface part in a height direction.

Image forming apparatus having a conveyance with air circulating opening

A sheet conveying apparatus includes a cover unit opened and closed with respect to an apparatus body and a guide unit including first and second movable guides respectively movable with respect to the apparatus body. A first conveyance path is formed between the first guide portion and the first movable guide, and a second conveyance path is formed between the second guide portion and the second movable guide. The guide unit is provided with a linking mechanism including an intermediate member for linking the first and second movable guides. The linking mechanism coordinates movements of the first and second movable guides such that the first and second movable guides are respectively moved away from the first and second guide portions along with an opening movement of the cover unit with respect to the apparatus body.

To enable placement of a regulating member which regulates a position of an end of a paper sheet at a desired position, and stable sheet feeding. A fixing member for standard size () is guided to engage with a fixing hole for standard size () and,

A sheet conveyance apparatus includes a sheet conveyor, a conveyance guide, and a door arranged movably between an open and closed position and configured to press the conveyance guide to move it from a guide open position to a guide closed position. A first retainer engages the conveyance guide so as to retain the conveyance guide, and a second retainer disposed in a position different from the first retainer engages the conveyance guide so as to retain the conveyance guide. When the door is positioned at the closed position, the first and second retainers retain, in different positions, the conveyance guide at the guide closed position, and when the door is positioned at the open position, the first retainer maintains the conveyance guide at the guide closed position and the second retainer releases a retention of the conveyance guide at the guide closed position.

Sheet conveyance apparatus and image forming apparatus

A sheet conveyance apparatus includes a sheet conveyance portion conveying a sheet, a conveyance guide arranged pivotably between a first open position and a first close position around a pivot axis and guiding a sheet conveyed by the sheet conveyance portion at the first close position, and a door arranged pivotably between a second open position and a second close position around an opening and closing axis, and moving the conveyance guide from the first open position to the first close position by pivoting from the second open position to the second close position in a state where the conveyance guide is positioned at the first open position. The conveyance guide is retained at the first close position by a retaining portion in a state where the door is positioned at the second open position.

A feeding apparatus and an image forming apparatus capable of appropriately detecting sheets stacked on a stacking plate are provided. The feeding apparatus includes a sheet contact portion configured to make contact with a sheet stacked on a stacker. The sheet contact portion is arranged between a position where a feed roller makes contact with the sheet and a position where a conveyance roller makes contact with the sheet, in a feeding direction, and within an area of the feed roller in an axial direction of the feed roller.

Feeding apparatus and image forming apparatus

A feeding apparatus and an image forming apparatus capable of reducing malfunctions due to wear of a portion where a sheet surface detection member makes contact with a sheet, and stably providing favorable feeding performance are provided. The feeding apparatus includes a holder configured to hold a first lever and a feed roller. The first lever includes a sheet contact portion configured to make contact with a sheet stacked on a sheet stacker. The feed roller, the first lever, and the holder are configured to be integrally detachable from a main body of the feeding apparatus.

Feeding apparatus and feeding unit detachably attached thereto

A sheet stacking apparatus includes a main body, a first storage unit configured to be drawn out of/inserted into the main body and storing a sheet, and a second storage unit configured to be drawn out of/inserted into the main body, provided above the first storage unit, and storing a sheet. The first storage unit includes a guide portion, and the second storage unit includes an abutment portion guided by the guide portion when the second storage unit is drawn out of the main body in a state in which the first storage unit is being precedingly drawn out of the main body.

Sheet stacking apparatus and image forming apparatus

A sheet conveying apparatus including: a conveying roller pair conveying a sheet by a nip portion; a shutter portion which is rotatably supported on a rotary shaft of the first conveying roller; a same radius portion, provided in the shutter portion, which is formed to have substantially the same radius as a radius of the first conveying roller; an abutment portion, provided in the shutter portion, and against which the leading edge of the sheet is abutted; and a boundary portion, provided in a boundary of the abutment portion and the same radius portion, which guides the leading edge of the sheet to the nip portion when the shutter portion is rotated by abutting the leading edge of the sheet against the boundary portion.

Growing community of inventors

Susono, Japan

Takehito Osada