Method of leading in APC control and image forming apparatus usi

Details Method of leading in APC control and image forming apparatus usi Method of leading in APC control and image forming apparatus usi

1997-12-15

1999-10-12

Le, Que T.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250234, 359204, 347236, G01J 132

Patent

active

059658690

ABSTRACT:
In an APC control lead-in method in an image forming apparatus having a plurality of laser light sources, a laser beam emitted by at least one of the plurality of laser light sources is scanned by a deflector to detect a synchronization signal from the scanned laser beam. A first laser light source as one of the plurality of laser light sources is turned on to be led in APC control of the first laser light source. A second laser light source as the remaining one of the plurality of laser light sources is turned on in synchronism with the synchronization signal after lead-in of the APC control of the first laser light source is complete so as to be led in APC control of the second laser light source.

REFERENCES:
patent: 5834766 (1998-11-01), Suhara

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