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. 20, 2012

Filed:

Sep. 16, 2009
Applicant:

Ji-hoon Woo, Hwaseong-si, KR;

Inventor:

Ji-Hoon Woo, Hwaseong-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/447 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed are an image forming apparatus capable of correcting a color registration error and a method for correcting the color registration error. The image forming apparatus can include an image receptor, a light scanning unit having a plurality of light sources and one or more beam deflectors, a developing unit, a transfer unit, and a color registration error correction unit configured to generate data about a color registration error based on a change in a light output value of the plurality of light source and to correct the color registration error between visible images formed on the image receptor.


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