Method of improving developed flat field uniformity

Details Method of improving developed flat field uniformity Method of improving developed flat field uniformity

2011-06-28

2011-06-28

Grainger, Quana M (Department: 2852)

Electrophotography

Control of electrophotography process

Control of developing

Reexamination Certificate

active

07970304

ABSTRACT:
Flat field uniformity can be improved in images produced by an image development system having a development roller interposed between a supply of developer and an imaging element. A raw feed of developer is supplied from the developer supply to the development roller to produce both a metered feed of developer and an overfeed of developer, which is returned to the supply, from the raw feed. A plurality of mass densities of developer used in the system and a plurality of developer velocities through the system are determined, and respective product values of those developer mass densities and those developer velocities are thereafter calculated or otherwise determined. A maximum value of the respective product values is identified, and the image development system is then operated so that the maximum product value is produced.

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