Image forming apparatus

Details Image forming apparatus Image forming apparatus

2007-03-06

2007-03-06

Tran, Hoan (Department: 2852)

Electrophotography

Control of electrophotography process

Of plural processes

C399S072000

Reexamination Certificate

active

11016881

ABSTRACT:
At power-on, an image forming apparatus is in a state after it is leftstanding for some time in many cases, so that an image characteristic is largely different from that when γLUT correction table is prepared by an immediately before correction and is close to that at the time of previous power-on. For this reason, image formation is judged whether it is first image formation after power-on or not (S21), and in the case of the first image formation, the γLUT correction table is replaced with an original γLUT correction table at the time of previous power-on (S22). In the case where the image formation is not the first image formation, the immediately before γLUT correction table obtained after power-on is used as it is. As a result, it becomes possible to stabilize a density or coloring of a first image after power-on while reducing a warm-up time immediately after power-on.

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