Image forming apparatus and method of performing density...

Details Image forming apparatus and method of performing density... Image forming apparatus and method of performing density...

2011-01-04

2011-01-04

Ngo, Hoang (Department: 2852)

Electrophotography

Control of electrophotography process

Of plural processes

C399S072000

Reexamination Certificate

active

07865096

ABSTRACT:
An image forming apparatus includes an image supporting member; an exposure device for forming a static latent image on the image supporting member; a developing device for developing the static latent image formed on the image supporting member; an image control unit for controlling a condition for forming an image; and a density sensor for detecting a developer density. In the image forming apparatus, a first pattern for detecting the developer density is formed to determine whether the developer density is proper. When the developer density thus detected is greater than a threshold value, a second pattern for discarding developer is formed to discard the developer. A third pattern for density correction is formed to perform the density correction.

REFERENCES:
patent: 6044234 (2000-03-01), Yoshizawa
patent: 2004-341100 (2004-12-01), None
patent: 2006-064897 (2006-03-01), None

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