The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 1999
Filed:
Dec. 15, 1997
Michiharu Masuda, Numazu, JP;
Takayuki Kawakami, Numazu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
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.