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:
Dec. 09, 2008
Filed:
Dec. 06, 2005
Katsuhide Koga, Moriya, JP;
Shigeo Hata, Toride, JP;
Yasuyuki Aiko, Toride, JP;
Akihiko Sakai, Abiko, JP;
Takashi Nagaya, Moriya, JP;
Takashi Birumachi, Kashiwa, JP;
Shingo Kitamura, Abiko, JP;
Katsuhide Koga, Moriya, JP;
Shigeo Hata, Toride, JP;
Yasuyuki Aiko, Toride, JP;
Akihiko Sakai, Abiko, JP;
Takashi Nagaya, Moriya, JP;
Takashi Birumachi, Kashiwa, JP;
Shingo Kitamura, Abiko, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
An image forming apparatus forms an image by laser beams from a plurality of lasers. The image forming apparatus includes a light amount control circuit that detects displacement in a sub-scanning direction of the main scanning line of a laser beam from the predetermined laser, from a reference position. The apparatus decides an allotted amount of light for each of the plurality of lasers in accordance with the detected displacement and controls to drive each of the plurality of lasers in accordance with the decided allotted amount of light for each laser.