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:
Jan. 03, 2006

Filed:

Feb. 06, 2001
Applicants:

Katsuyuki Hirata, Aichi-Ken, JP;

Kentaro Katori, Toyokawa, JP;

Tetsuya Sakai, Aichi-Ken, JP;

Tomoki Wada, Daito, JP;

Inventors:

Katsuyuki Hirata, Aichi-Ken, JP;

Kentaro Katori, Toyokawa, JP;

Tetsuya Sakai, Aichi-Ken, JP;

Tomoki Wada, Daito, JP;

Assignee:

Minolta Co., Ltd., Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 27/32 (2006.01); G06E 1/02 (2006.01); B41J 2/45 (2006.01); G06K 9/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image forming device capable of providing an image of excellent quality without unevenness of density. According to the image forming device, a controller measures light quantity for each light emitting element of the exposing device as to the pattern where only one of the light emitting elements is turned on, and as to the pattern where all the light emitting elements are turned on. Based on the data about the measured light quantity, a change rate in the light quantity distribution of the exposing device is calculated. Based on the data about the measured light quantity and the change rate in the light quantity distribution calculated, correction value for each of the light emitting elements of the exposing device is determined.


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