Thermal printer capable of reproducing halftone image

Details Thermal printer capable of reproducing halftone image Thermal printer capable of reproducing halftone image

1983-03-18

1985-05-07

Goldberg, E. A.

Recorders

Thermal recording

358298, B41S 302

Patent

active

045161356

ABSTRACT:
A thermal printer performs halftone reproduction of image by applying energy of an electrical signal which varies in response to the data representing tone graduation grade of the image into resistor heating element of the printer. The electrical signal to be applied to the heating element is not directly obtained from the above data but it is formed based on the conversion data stored in advance in a memory in which the characteristics of image receiving paper or inking material is taken into consideration.

REFERENCES:
patent: 4335968 (1982-06-01), Regnault
patent: 4376942 (1983-03-01), Toth et al.
patent: 4377972 (1983-03-01), O'Neil

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