Kabushiki Kaisha Toshiba

Toshiba Tec Kabushiki Kaisha

Yousuke Ushiyama

Tetsuo Shiba

Tokihiko Ise

Masahiro Ohno

Toshihiro Matsushima

Kazumasa Yasui

According to one embodiment, an image forming apparatus includes a cassette, a sensor and a controller. The cassette stacks a sheet. The sensor is provided at the rear end of the cassette. When the sensor detects the protrusion of the sheet from the cassette, the controller controls to notify that the sheet protrudes by using an alarm.

Image forming apparatus

According to one embodiment, a sheet stacker includes a stacking table, a pair of side walls, and a sensor. The stacking table is configured to stack a sheet. The pair of side walls is configured to move symmetrically with respect to a center position to regulate both sides of the sheet in a width direction. The sensor is configured to detect a relative position of the center position against the stacking table.

Image forming apparatus and lateral displacement detection method

An image forming apparatus includes an outer case which includes a first opening portion and a second opening portion provided just below the first opening portion, a withdrawable part which is received in the inside of the first opening portion so as to be withdrawn from the first opening portion in a horizontal direction, a cover which closes the second opening portion, a rotary shaft supports the cover so as to be rotatable from a first position where the cover closes the outer case to a second position where the cover opens the outer case, and a position adjusting mechanism which moves up the cover so as to be close to the withdrawable part at the first position and moves down the cover so as to be away from the withdrawable part at the second position.

Image forming apparatus and method of adjusting cover position 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.

Image forming apparatus and operation method of image forming 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.

Growing community of inventors

Mishima, Japan

Yousuke Ushiyama