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:
Jan. 03, 2017
Filed:
Mar. 04, 2015
Motohiro Kawanabe, Osaka, JP;
Masayuki Hayashi, Osaka, JP;
Masatoshi Murakami, Osaka, JP;
Yoshinori Shirasaki, Osaka, JP;
Yuusuke Kohri, Osaka, JP;
Akinori Yamaguchi, Osaka, JP;
Motohiro Kawanabe, Osaka, JP;
Masayuki Hayashi, Osaka, JP;
Masatoshi Murakami, Osaka, JP;
Yoshinori Shirasaki, Osaka, JP;
Yuusuke Kohri, Osaka, JP;
Akinori Yamaguchi, Osaka, JP;
RICOH COMPANY, LIMITED, Tokyo, JP;
Abstract
An image forming apparatus comprises: a plurality of exposure units, each of the exposure units including a plurality of light emitting elements that are arranged in a main scanning direction; a calculating unit that, with respect to each of the exposure units, calculates a pre-charge period that is a period during which a pre-charge is performed on at least any of the light emitting elements included in a corresponding exposure unit; and an emission control unit that, with respect to each of the exposure units, causes the light emitting elements included in a corresponding exposure unit to emit light such that a pre-charge period of at least any of the exposure units is shifted with respect to pre-charge periods of remaining ones of the exposure units.