Image forming apparatus and control method thereof

Details Image forming apparatus and control method thereof Image forming apparatus and control method thereof

2009-02-13

2011-12-13

Brase, Sandra (Department: 2884)

Electrophotography

Control of electrophotography process

Of plural processes

Reexamination Certificate

active

08078070

ABSTRACT:
An image forming apparatus is provided that uses a table generated in advance to correct a gradation characteristic of an image to be formed when carrying out image forming using an image carrier. A patch is formed in an area where the image is not formed on the image carrier. A density of the patch formed on the image carrier is measured. The table is modified based on the density of the patch that has been measured. The patch is formed concurrently with image forming of the image on the image carrier.

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