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:
Sep. 20, 2011
Filed:
Sep. 28, 2009
Fumihiko Ogasawara, Ebina, JP;
Osamu Yasui, Ebina, JP;
Michihiro Inoue, Ebina, JP;
Ken Tsuchiya, Ebina, JP;
Michio Taniwaki, Ebina, JP;
Toshio Hisamura, Kawasaki, JP;
Fumihiko Ogasawara, Ebina, JP;
Osamu Yasui, Ebina, JP;
Michihiro Inoue, Ebina, JP;
Ken Tsuchiya, Ebina, JP;
Michio Taniwaki, Ebina, JP;
Toshio Hisamura, Kawasaki, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
An exposure device includes plural light emitting elements that light in turn for exposure, plural driving elements that drive each of the light emitting elements and a time changing member that changes one time period of a switching signal to switch light emitting elements driven by the driving elements among the plurality of light emitting elements in turn from a reference time, depending on an image forming speed, wherein the time changing member changes the one time period from the reference time for some of the light emitting elements during one main scan, and maintains the one time period as the reference time for the remaining light emitting elements.