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.

Date of Patent:
Dec. 27, 2016

Filed:

Aug. 19, 2015
Applicant:

Fuji Xerox Co., Ltd., Tokyo, JP;

Inventors:

Eigo Nakagawa, Kanagawa, JP;

Akira Sakamoto, Kanagawa, JP;

Chikaho Ikeda, Kanagawa, JP;

Jun Isozaki, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 11/00 (2006.01); C09D 11/101 (2014.01); H05B 37/02 (2006.01); H01S 5/062 (2006.01);
U.S. Cl.
CPC ...
B41J 11/002 (2013.01); C09D 11/101 (2013.01); H01S 5/062 (2013.01); H05B 37/0209 (2013.01);
Abstract

A light emitting elements drive control device includes: a supplying unit that supplies a common power source voltage to a plurality of light emitting elements whose light emission quantities are controlled individually by current controls; a determining unit that determines voltage ranges capable of assuring proper current control operations on the individual light emitting elements based on drive voltages for the respective light emitting elements that vary as the current controls are performed; and a setting unit that sets the power source voltage to be supplied from the supplying unit from a common voltage range of the voltage ranges determined by the determining unit.


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