Patent application number | Description | Published |
20090072472 | IMAGE FORMING APPARATUS AND OPERATION METHOD OF IMAGE FORMING APPARATUS - In an image transferring apparatus of the invention, a relay unit, which is provided in a main body frame and includes a conveyance switching mechanism to eject a sheet on which an image is fixed by a fixing section to a sheet ejection section or to switch back the sheet in the middle of ejection, can be pulled out, and a automatic duplex unit to guide the switched back sheet to an image forming section is mounted to the main body frame to be capable of being detached. An intermediate unit to guide the sheet switched back by the relay unit, together with the fixing section, is fixed and placed in the main body frame. The intermediate unit is provided with a guide member to be capable of being opened and closed between a guide position for the switched back sheet and an open position opposite to the guide position. The guide member always receives a spring force toward the open position, and when the automatic duplex unit is mounted to the main body frame, the guide member is moved to the guide position by contact with a pressing body of the automatic duplex unit side, and when the automatic duplex unit is detached from the main body frame, the guide member is opened to the open position by the spring force. | 03-19-2009 |
20100059925 | IMAGE FORMING APPARATUS - In an embodiment of the invention, a detection unit arranged near a feed roller is rotatably arranged. A space where the feed roller is attached and detached is formed by rotating the detection unit. The detection unit is rotated in accordance with an operation of attaching and detaching the feed roller to and from a shaft, and the maintenance of the feed roller is performed while the formed space is used. | 03-11-2010 |
20100303529 | SHEET CONVEYING DEVICE OF IMAGE FORMING APPARATUS - A conveying device includes a first curved guide member, a second guide member which has a radius of curvature larger than the first guide member and guides a recording medium between the second guide member and the first guide member, a pinching and conveying section which is disposed on an entrance side of a conveyance path including the first guide member and the second guide member, pinches the recording medium and conveys the recording medium into the conveyance path, and a support member which is provided on the second guide member at.a position adjacent to the pinching and conveying section, and has a support point on an extended line of a normal line of a nip of the pinching and conveying section. | 12-02-2010 |
20110103858 | IMAGE FORMING APPARATUS AND OPERATION METHOD OF IMAGE FORMING APPARATUS - In an image transferring apparatus of the invention, a relay unit, which is provided in a main body frame and includes a conveyance switching mechanism to eject a sheet on which an image is fixed by a fixing section to a sheet ejection section or to switch back the sheet in the middle of ejection, can be pulled out, and a automatic duplex unit to guide the switched back sheet to an image forming section is mounted to the main body frame to be capable of being detached. An intermediate unit to guide the sheet switched back by the relay unit, together with the fixing section, is fixed and placed in the main body frame. The intermediate unit is provided with a guide member to be capable of being opened and closed between a guide position for the switched back sheet and an open position opposite to the guide position. The guide member always receives a spring force toward the open position, and when the automatic duplex unit is mounted to the main body frame, the guide member is moved to the guide position by contact with a pressing body of the automatic duplex unit side, and when the automatic duplex unit is detached from the main body frame, the guide member is opened to the open position by the spring force. | 05-05-2011 |
20110262200 | SHEET TRANSPORT DEVICE FOR IMAGE FORMING APPARATUS - A sheet transport device includes: a registration roller pair that includes a first roller and a second roller lower in abrasion resistance than the first roller, and nips and transports a recording medium; and a drive mechanism that provides a rotation to the first roller to rotate at the first circumferential speed, and provides a rotation to the second roller to rotate at the second circumferential speed different from the first circumferential speed. | 10-27-2011 |
Patent application number | Description | Published |
20090066011 | PAPER FEEDING APPARATUS - A paper feeding apparatus includes a cassette main body that stacks a paper therein, a sidewall that moves in a width direction of the cassette main body, an end wall that moves in a longitudinal direction of the cassette main body, a first movable member that is connected at one end to the sidewall and rotates around a shaft axially fixed to the cassette main body in connection with the sidewall, a second movable member that is connected at one end to the end wall and rotates around a shaft axially fixed to the cassette main body in connection with the end wall, a first detection unit that has a plurality of detection members and detects the size of the paper in the width direction, and a second detection unit that has a plurality of detection members and detects the size of the paper in the longitudinal direction. | 03-12-2009 |
20090070957 | IMAGE FORMING APPARATUS - An image forming apparatus includes a first opening and closing member that rotates about a first hinged end, a second opening and closing member provided so as to oppose the first opening and closing member, the second opening and closing member rotating about a second hinged end in association with opening of the first opening and closing member, and an operating portion provided on the first opening and closing member, arranged at a position to avoid interference of an end portion of the second opening and closing member when opening the first opening and closing member and the second opening and closing member, and which rotate the first opening and closing member. | 03-19-2009 |
20100201063 | PAPER FEEDING APPARATUS WITH PAPER SIZE DETECTORS - A paper feeding apparatus includes a cassette main body that stacks a paper therein, a sidewall that moves in a width direction of the cassette main body, an end wall that moves in a longitudinal direction of the cassette main body, a first movable member that is connected at one end to the sidewall and rotates around a shaft axially fixed to the cassette main body in connection with the sidewall, a second movable member that is connected at one end to the end wall and rotates around a shaft axially fixed to the cassette main body in connection with the end wall, a first detection unit that has a plurality of detection members and detects the size of the paper in the width direction, and a second detection unit that has a plurality of detection members and detects the size of the paper in the longitudinal direction. | 08-12-2010 |
20110095473 | PAPER FEEDING APPARATUS WITH PAPER SIZE DETECTORS - A paper feeding apparatus includes a cassette main body that stacks a paper therein, a sidewall that moves in a width direction of the cassette main body, an end wall that moves in a longitudinal direction of the cassette main body, a first movable member that is connected at one end to the sidewall and rotates around a shaft axially fixed to the cassette main body in connection with the sidewall, a second movable member that is connected at one end to the end wall and rotates around a shaft axially fixed to the cassette main body in connection with the end wall, a first detection unit that has a plurality of detection members and detects the size of the paper in the width direction, and a second detection unit that has a plurality of detection members and detects the size of the paper in the longitudinal direction. | 04-28-2011 |