Electrographic development apparatus and method for use with par

Details Electrographic development apparatus and method for use with par Electrographic development apparatus and method for use with par

1981-04-27

1982-08-31

Welsh, John D.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

4301066, 430110, 430117, 430120, 430122, 118657, G03G 1306, G03G 1308

Patent

active

043472982

ABSTRACT:
Improved electrographic development apparatus and procedure for use with partially-conductive developer employs transport of the developer through a first development zone in a direction generally countercurrent to a moving image member and through a second development zone in a direction generally co-current to the moving image member. The extent of image development within each such zone is controlled by the rate of developer transport and/or the magnitude of developer bias, so that overall development of the different portions of large solid image areas (particularly leading and trailing portions of such areas) is equalized.

REFERENCES:
patent: 4177757 (1979-12-01), Murakawa et al.
patent: 4193376 (1980-03-01), Hamaguchi et al.

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