Oki Data Corporation

Oki Electric Industry Co., Ltd.

Koji Aida

Toshimasa Shiobara

Minoru Mizutani

Kuniharu Hayashi

A ventilation device includes a ventilation part that includes a first engagement part and that allows air to flow therethrough, and an air-feeding direction change part that includes a second engagement part, that is revolvably attached to the ventilation part by engaging the first engagement part and the second engagement part, and that changes an air-feeding direction in accordance with revolving. The ventilation part includes a revolving center B and aperture parts. The air-feeding direction change part includes an oblique member disposed to incline with respect to a rotational axis of the air-feeding direction change part and a ventilation mouth part, the ventilation mouth part communicating with the aperture parts under a state where the air-feeding direction change part is attached to the ventilation part.

Ventilation device, image forming apparatus, and information processing apparatus

A fixing device includes a non-contacting thermistor () disposed in the vicinity of the surface of a heat roller () and an upper cover temperature thermistor () for detecting the temperature of a pressure roller (). The calculated surface temperature (T) of the heat rolleris calculated based on the detected temperature (T) detected by the non-contacting thermistor (), the detected temperature (T) detected by the upper cover temperature thermistor (), the distance (L) from the non-contacting thermistor () to the surface of the heat roller () and the distance (L) from the non-contacting thermistor () to the upper cover ().

Fixing device and image forming apparatus

An image forming apparatus includes a main body () and a sheet feeding tray () that stores the stack of media (). The sheet feeding tray () includes retractable guides () that restrict lateral ends of the media () stacked in the sheet feeding tray (). The retractable guides () can be kept laid when the sheet feeding tray () is not in use. Therefore, even when the retractable guides () are sufficiently large, the sheet feeding tray () can be compact when the sheet feeding tray () is not in use. Thus, when the sheet feeding tray () is housed in the main body (), it is not necessary to provide a large recess space in the main body (), and therefore it is not necessary to increase the size of the image forming apparatus.

Image forming apparatus and medium feeding mechanism

In a serial printer a pinion and a rack for lateral movement of a carriage, a dislodging member with edges proximate to the rack is provided to remove any chads or other foreign matters that may be attached to the rack, as they approach the pinion with the lateral movement of the carriage. The chads or other foreign matters are prevented from being caught between the pinion and the rack, and noises and increase in the torque due to the rolling in is prevented.

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Tokyo, Japan

Koji Aida