Image forming apparatus having laser timing control using beam d

Details Image forming apparatus having laser timing control using beam d Image forming apparatus having laser timing control using beam d

1990-10-30

1992-11-17

Reinhart, Mark J.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

358296, H04N 121

Patent

active

051647451

ABSTRACT:
A laser beam emitted from a laser is detected by a photosensor, and a flip-flop is preset by a detection signal output from the photosensor. A timer is driven in accordance with a preset output from the flip-flop, and a timer output is generated after a lapse of a predetermined period of time. The laser is again driven by the timer output to emit a laser beam. While, another timer is driven in response to a front edge of the preset output of the flip-flop to generate a horizontal synchronizing signal.

REFERENCES:
patent: 4264120 (1981-04-01), Uchiyama et al.
patent: 4853710 (1989-08-01), Shimada et al.
patent: 4933874 (1990-06-01), Asada et al.

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