Image formation device and image formation method

Details Image formation device and image formation method Image formation device and image formation method

2006-01-03

2006-01-03

Chen, Sophia S. (Department: 2852)

Electrophotography

Control of electrophotography process

Of plural processes

C399S012000, C399S053000, C399S082000

Reexamination Certificate

active

06983111

ABSTRACT:
The process of the invention determines whether the value of a color mode CMode represents a color image formation mode or a monochromatic image formation mode (S200, S210). The process forms test toner images of cyan, magenta, yellow, and black in the case of the color image formation mode (S220), while forming a test toner image of only black in the case of the monochromatic image formation mode (S230). The process detects a toner density of each test toner image formed with a toner density sensor (S240), and sets control parameters used for controlling toner image formation, based on the detected toner densities (S250).

REFERENCES:
patent: 6181892 (2001-01-01), Fujimori
patent: 6192207 (2001-02-01), Yamamoto et al.
patent: 6636711 (2003-10-01), Katahira
patent: 6763202 (2004-07-01), Maeda
patent: 2001/0043258 (2001-11-01), Ohki
patent: 2002/0041770 (2002-04-01), Nakazato et al.
patent: 02-144568 (1990-06-01), None
patent: 2001-094810 (2001-04-01), None

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