Minolta Camera Kabushiki Kaisha

Minolta Company, Ltd.

Tohru Fujiwara

Hiroyuki Ideyama

Eiji Okabayashi

Satoru Yoneda

Takeshi Kato

Kenichi Muroki

Hiroaki Hinotani

Peter Johnston

Akito Wada

A fixing device which changes the amount of heat received by a recording paper in accordance with a portion of the recording paper with respect to a paper transporting direction. The fixing device controls a heater for heating a fixing member so as to raise the temperature of the fixing member when a trailing half of the recording paper is disposed between the fixing member and a pressure member, or controls the heater so as to decrease the temperature of the fixing member when either one of a leading end and a trailing end of the recording paper is disposed between the fixing member and the pressure member. For another example, the fixing device controls, when a recording paper is fed from the feeding tray, at least either one of the rotation of the pressure roller and the transportation of the recording paper so as not to make the leading end of the recording paper contact with a portion of the exterior circumference of the pressure roller which is in contact with the fixing roller when the pressure roller is stopped.

Fixing device for thermally fixing toner onto a paper sheet and having a

An induction heating fixing device comprises a heat roller in which coil assemblies are disposed. The coil assemblies are aligned axially of the roller to produce magnetic flux in a direction orthogonal to the axis of the heat roller.

Induction heating fixing device

A color copying apparatus in accordance with the present invention includes: a scanner for scanning an original to form a plurality of electrostatic latent images corresponding to color components of an image of the original; developing devices for converting the electrostatic latent images formed by the scanner to toner images of different colors; a rotating unit on which the toner images obtained by the conversion are superposed; a detector for detecting a rotating position of the rotating unit; a controller for controlling start timing of the scanner in response to a detection output of the detector; and a regulator for regulating the start timing for each of the toner images.

Color copying apparatus with improved start timing of a scanner

Growing community of inventors

Machida, Japan

Tohru Fujiwara