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:
Nov. 27, 2001

Filed:

Mar. 02, 1999
Applicant:
Inventors:

Yoshinobu Hada, Aichi-Ken, JP;

Masanori Murakami, Toyokawa, JP;

Jinju Okuno, Toyokawa, JP;

Assignee:

Minolta Co., Ltd., Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 1/501 ;
U.S. Cl.
CPC ...
G03G 1/501 ;
Abstract

An image forming apparatus forms a color image by superimposing images formed in a plurality of colors. To prevent color deviations from occurring in the image forming apparatus, a predetermined registration pattern is formed in each of the plurality of colors, and an image forming position is adjusted for each color in accordance with a detection result given by a detecting unit on detecting the predetermined registration pattern. A value of a parameter having an effect on an output of the detecting unit is set for each color so that the value set for at least one of the colors is different to the values respectively set for other colors. The value of the predetermined parameter may be set as a fixed value for each color. Alternatively, the value of the predetermined parameter may be a variable that is automatically set.


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