Exposure control for selective speed xerographic printing and th

Details Exposure control for selective speed xerographic printing and th Exposure control for selective speed xerographic printing and th

1976-04-01

1980-04-08

Cardillo, Jr., Raymond F.

Facsimile and static presentation processing

Facsimile

Recording apparatus

346 76L, 346160, 358127, 358302, H04N 122, H04N 140, H04N 580

Patent

active

041975600

ABSTRACT:
A selective speed xerographic processor having a laser for exposing a photoreceptor at any one of a plurality of different printing rates in response to a video signal is characterized by including an adjustable optical attenuator and an adjustable electrical attenuator for coarsely and more precisely, respectively, normalizing the exposure process. The processor may be used to advantage as a printer for a facsimile systems offering a choice of several different document transmission times.

REFERENCES:
patent: 2274530 (1942-02-01), Collins
patent: 3105426 (1963-10-01), Bickmore et al.
patent: 3245083 (1966-04-01), Wilson et al.
patent: 3316348 (1967-04-01), Hufnagel et al.
patent: 3354465 (1967-11-01), Merritt et al.
patent: 3482254 (1969-12-01), Harrison et al.
patent: 3750189 (1973-07-01), Fleischer
patent: 3858004 (1974-12-01), Mason et al.

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