Image recording apparatus for producing a plurality of pulse wid

Details Image recording apparatus for producing a plurality of pulse wid Image recording apparatus for producing a plurality of pulse wid

1989-03-20

1989-10-10

Goldberg, E. A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

358296, G01D 942

Patent

active

048735370

ABSTRACT:
An image beam recording apparatus including an image data input device, a comparator for forming a plurality of pulse width modulated signals on the basis of the image data input by the input device, and a laser for scanning a laser beam modulated in accordance with the pulse width modulated signals output by the comparator and for recording an image on a recording medium. The comparator is capable of forming a plurality of pulse width modulated signals so as to reproduce a variable density image. The plurality of pulse width modulated signals have the same number of pulses, but different pulse widths. The laser effects a scanning operation so that a plurality of beams modulated by the pulse width modulated signals form spots which overlap each other.

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IBM Technical Disclosure Bulletin, vol. 20, No. 1, Jun. 1977, pp. 31-32.

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