Compensation circuitry for a laser printer using a self-resonant

Details Compensation circuitry for a laser printer using a self-resonant Compensation circuitry for a laser printer using a self-resonant

1984-03-15

1986-04-29

Goldberg, E. A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

358293, G01D 942

Patent

active

045860572

ABSTRACT:
Compensation circuitry for a laser printer using a self-resonant scanner wherein a clock generator (VCO) and an address counter operated between start of scan (SOS) and end of scan (EOS) signals are used in the generation of data clock signals. A flip-flop circuit is connected to receive the EOS signal and the output from a higher order bit output of the address counter to provide logic circuitry with an indication of whether the clock generator (VCO) frequency should be raised or lowered. The logic circuitry provides an input to a digital to analog means which is connected to the control input of the clock generator (VCO).

REFERENCES:
patent: 4204233 (1980-05-01), Swager
patent: 4268867 (1981-05-01), Trainio
patent: 4320420 (1982-03-01), Rider

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