Image formation apparatus and associated methodology for...

Details Image formation apparatus and associated methodology for... Image formation apparatus and associated methodology for...

2011-05-24

2011-05-24

Gray, David M (Department: 2852)

Electrophotography

Control of electrophotography process

Forming test image

Reexamination Certificate

active

07949276

ABSTRACT:
An apparatus and method to update patch image formation frequency, in which an electrostatic latent image is formed on an image supporting object, and the electrostatic latent image is developed with a toner. The image formation apparatus includes a developing unit, a toner supply unit for supplying the toner to the developing unit, a patch image density detecting unit for detecting the density of a patch image formed on the image supporting object, a toner density detecting unit for detecting the density of the toner held in the developing unit, and a control unit that adjusts a generating interval of the patch image according to a detection result of the patch image density detecting unit.

REFERENCES:
patent: 5471313 (1995-11-01), Thieret et al.
patent: 6181888 (2001-01-01), Scheuer et al.
patent: 2001-125365 (2001-05-01), None

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