Multitone thermal transfer recording method and apparatus

Details Multitone thermal transfer recording method and apparatus Multitone thermal transfer recording method and apparatus

1987-10-22

1989-02-21

Goldberg, E. A.

Recorders

Thermal recording

358298, G01D 900

Patent

active

048069493

ABSTRACT:
A thermal transfer recording technique for printing a multiple tone image by applying energy to a recording head for a period of time corresponding to digital tone data which represents the levels of tones as binary digits.
In this technique, a least significant digit of the digital tone data is output as a first signal and second signals are output repeatedly the number of times being equal to the digital tone data of binary form except the least significant digit data. The recording head is driven in response to the first and second signals so as to electrify the recording head for the unit time according to the first signal and for a period of twice as long as the unit time according to the second signal.

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