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:
Mar. 20, 2018
Filed:
Apr. 19, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Fumiaki Mizuno, Suntou-gun, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus includes: a detection unit configured to detect light that a light source emits and that is reflected by a polygon mirror in a predetermined direction, and to output a synchronization signal; a speed control unit configured to perform acceleration/deceleration control of the polygon mirror based on the synchronization signal at a target speed; and a light intensity control unit configured to decide an emission intensity of the light source and notify the digital value to the light driving unit. The speed control unit changes control of the polygon mirror to a neutral control in which neither acceleration nor deceleration control is performed in a case the light intensity control unit changes the light intensity of the light source when the speed control unit is performing the acceleration/deceleration control.