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:
Apr. 25, 2017
Filed:
Dec. 08, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Yasukazu Maeda, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An adjustment includes a first current adjustment for adjusting a first current Idrv by supplying a superimposed current of the first current Idrv and a second current Ib to an LD, and a second current adjustment for adjusting the second current Ib by supplying the second current Ib to the LDwithout supplying the first current Idrv thereto. Upon reception of an image forming instruction, a control unit performs adjustment in order of the second current adjustment for the first time, the first current adjustment for the first time, the second current adjustment for the second time, and the first current adjustment for the second time. An execution period of the second current adjustment for the first time is longer than an execution period of the second current adjustment for the second time.