Canon Kabushiki Kaisha

Masataka Mochiduki

Satoru Izawa

Shinji Hashiguchi

Toshihiko Ochiai

Koji Nihonyanagi

Fumiki Inui

Eiichiro Kimizuka

Yutaka Kubochi

Eiji Uekawa

Akihito Kanamori

Yasuhiro Tomioka

Takao Kawadu

An image-forming apparatus includes a movable lever which functions as a recording medium detector for detecting the passage of a recording medium and a temperature detecting portion provided on the movable lever. The temperature of the recording medium is detected without providing an additional space for a sensor for detecting the temperature of the recording medium.

Image-forming apparatus and recording-medium-temperature detector unit used in the same

According to the present invention, a temperature sensing part of temperature sensing means is arranged to come into contact with the surface opposite to the image surface of a recording material at the time of one-sided printing without providing such an opposed member that comes into contact with the image surface of the recording material at least in a position corresponding to the position of the temperature sensing part that is in contact with the recording material.

Image forming apparatus having temperature sensing element for sensing temperature of recording material

There is provided an emission control apparatus with which it is capable of variably controlling the intensity of a light beam to be set, in a stable manner and at a low cost without increasing the circuit size. A semiconductor laser diode LD emits a light beam. A photo diode PD detects the intensity of the light beam emitted from the semiconductor laser diode LD. A driving circuit supplies driving current to the semiconductor laser diode LD. A switching section switches the driving current according to a video signal. An input terminal receives a pulse width modulation signal. A smoothing circuit smoothes the received pulse width modulation signal. A laser driver controls a value of the driving current according to smoothed voltage obtained by the smoothing circuit such that the detected intensity of the light beam is equal to a target intensity.

Emission control apparatus with settable target intensity and image forming apparatus using same

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Suntoh-gun, Japan

Masataka Mochiduki