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. 10, 2013
Filed:
Nov. 13, 2012
Applicant:
Tatsuo Ohyama, Kanagawa, JP;
Inventor:
Tatsuo Ohyama, Kanagawa, JP;
Assignee:
Ricoh Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/435 (2006.01); B41J 2/47 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image forming apparatus that performs a shading correction includes a light source that emits a light beam; a light-source drive unit that drives the light source; and a light-quantity-adjustment-amount control unit that performs an adjustment of a light quantity in accordance with a shading correction curve by controlling, for the light-source drive unit, a light-quantity adjustment amount and an increase/decrease cycle of the light-quantity adjustment amount. The increase/decrease cycle is a unit of time within a time period during which the light-quantity adjustment amount increases or, decreases.