Recording apparatus using semiconductor laser

Details Recording apparatus using semiconductor laser Recording apparatus using semiconductor laser

1991-02-25

1993-04-27

Reinhart, Mark J.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

358296, H04N 121

Patent

active

052066649

ABSTRACT:
A recording apparatus using a semiconductor laser comprises a video signal processor which reduces the time for conduction of current in a semiconductor laser diode by cutting away a pulse signal for turn on/off of the semiconductor laser diode at its leading and trailing edges. For both a one pulse signal representative of an isolated one dot and a one pulse signal representative of continuous plural dots, the signals being transmitted from a host, the processor contracts the pulse width of the pulse signal at its leading and trailing edges to permit uniform recording which is not influenced by the manner of arranging dots.

REFERENCES:
patent: 4574176 (1986-03-01), Sharp

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