Process control of electrophotographic device

Details Process control of electrophotographic device Process control of electrophotographic device

1997-07-14

1999-10-26

Braun, Fred L.

Electrophotography

Control of electrophotography process

Control of developing

399 49, G03G 1506

Patent

active

059742798

ABSTRACT:
A method for controlling the density of microdots produced by a binary or multilevel electrophotographic device. In one example, the toner concentration in a two-component developing system is modified as to keep the toner charge Q/M approximately constant. The toner charge is indirectly assessed. This allows to achieve consistent output densities, irrespective of the environmental parameters, such as relative humidity and temperature.

REFERENCES:
patent: 4026643 (1977-05-01), Bergman
patent: 5005050 (1991-04-01), Donivan
patent: 5006897 (1991-04-01), Rimai et al.
patent: 5047802 (1991-09-01), Donivan et al.
patent: 5212522 (1993-05-01), Knapp
patent: 5307119 (1994-04-01), Folkins

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