Canon Kabushiki Kaisha

Hiroshi Hiura

Hajime Sekiguchi

Hiroto Koga

Toshifumi Itabashi

Takeshi Suga

Yusuke Imai

Osamu Sato

Shinsuke Ubayashi

Yoshimasu Yamaguchi

Kazuhisa Okuda

Shigeo Doi

Fumihiko Hayayumi

Kazuyoshi Sasae

Kazushi Kitajima

An image forming apparatus including: a first door rotatable about a first rotation axis extending in a width direction within a first rotation range between a first open position and a first closed position; a second door provided below the first door and rotatable about a second rotation axis extending in a direction orthogonal to the first rotation axis within a second rotation range between a second open position and a second closed position, a part of the first rotation range making inroads into the second rotation range; and a retracting portion configured to rotate the first door to a retracted position to allow a rotation of the second door in conjunction with the second door being rotated to the second closed position from a state in which the first door is in the first open position and the second door is in the second open position.

Image forming apparatus and image forming system

A retaining ringfor a shaftusable with a bearinghaving an outer ringand an inner ringfixed on the shaft, wherein the inner ringand the outer ringare rotatable relative to each other, and the retaining ringis provided on the shaftadjacent to the bearingin a thrust direction to restrict a position of the bearingin the thrust direction, the retaining ringincludes a protrusionprotruding in the thrust direction from a surface opposing the inner ringin the thrust direction to contact the inner ringso that the retaining ringis out of contact from the outer ring

Shaft retaining ring and image forming apparatus

An insert nut includes a cylindrical portion into which a bolt is removably insertable. An inner periphery of the cylindrical portion includes a first region, a second region and a third region which are provided in the order named from an upstream side to a downstream side with respect to an insertion direction of the bolt at an inner periphery thereof. The first region and the third region include a female screw portion threadably engageable with the bolt. The second region has a minimum inner diameter larger than D+2&#xd7;h&#xd7;0.3, where Dis an inner diameter of the female screw portion in the first region at a screw thread position and his a height of a screw thread of the female screw portion in the first region.

Insert nut and fastening device

A roller is rotatably provided in an arm that is swingable relative to a main body of an apparatus, and is connected to a tension spring using a wire of a roller shaft. A roller guide portion that guides the roller is provided in a sheet feeding cassette. The roller is guided along a guiding member of the roller guide portion in accordance with insertion of the sheet feeding cassette into the main body of the apparatus. When the roller is guided along the guiding member, an elastic force of the tension spring is accumulated. The sheet feeding cassette is pulled to a mounting position when the roller is guided along the guiding member. The sheet feeding cassette is pushed out also when the roller is guided along the guiding member.

Unit moving device and image forming apparatus

A sheet feeding apparatus and an image forming apparatus, including a size detecting portion, which has: a size detecting lever, which is disposed opposite to a side regulation member, and pivots in association with a movement of the side regulation member to a regulation position according to a size of a sheet; and a switch turned ON and OFF according to a pivotal position of the size detecting lever. The side regulation member is provided with a protrusion, which abuts the size detecting lever to amplify a pivotal amount of the size detecting lever pivoting in association with the movement of the side regulation member to the regulation position.

Sheet feeding apparatus and image forming apparatus

Sheets fed out of a cassette supporting the sheets by a pickup roller are separated and fed by a sheet separation feeding unit having a feed roller and a separating roller which is rotatable in a direction opposite to a sheet feeding direction. A charge eliminating mechanism for eliminating charges of the separating roller is arranged on the upstream side in the sheet feeding direction in a separation nip portion between the feed roller and the separating roller.

A sheet cassette including a sheet stacking case configured to contain sheets, the sheet stacking case having a securing mechanism for securing an air supply unit supplying air, and a duct for sending the air supplied from the air supply unit to end portions of the contained sheets, thereby allowing the air supply unit to be attached to blow the air only when necessary.

Sheet stacking device, sheet feeding device, and image forming apparatus

A feeding unit is detachably attached to a sheet cassette in which sheets are loaded. The feeding unit includes a sheet tray on which sheets are loaded, and a fan for blowing air against the side surface of a stack of sheets loaded on the sheet tray, the sheet tray and the fan being held in a case.

Sheet feeding unit, sheet feeding apparatus, and image forming apparatus

A sheet conveying apparatus including: a plurality of doors for opening a sheet conveying path are provided vertically adjacent to one another in an apparatus main body, and openably and closably about an axis provided in a vertical direction; and a restricting mechanism, which restricts, before an upper door of the plurality of doors is closed, the closing of a door just below the upper door.

Sheet conveying apparatus and image forming apparatus

An image forming unit detachably mountable to an image forming apparatus, includes an image forming device that forms a toner image. A mounting device is provided in the image forming unit for mounting a toner supply container that supplies toner to the image forming device. The mounting device is such that the toner supply container is mountable to and dismountable from the image forming unit which is mounted in the image forming apparatus.

Toner supply container, image formation unit and image forming apparatus

The present invention provides a sheet containing apparatus which is mounted to an image forming apparatus and adapted to contain a sheet to be fed to image forming mechanism of the image forming apparatus. And the sheet containing apparatus has a frame having a bottom plate and a side plate upright from the bottom plate, an end regulating mechanism movable in accordance with a size of a sheet contained in the frame and adapted to regulate an end of the sheet, and a flexion preventing mechanism provided on the end regulating mechanism and adapted to prevent the end regulating mechanism from being flexed by engagement with the side plate.

Growing community of inventors

Toride, Japan

Hiroshi Hiura