Thermal transfer video printer having improved temperature corre

Details Thermal transfer video printer having improved temperature corre Thermal transfer video printer having improved temperature corre

1991-06-25

1992-08-25

Reinhart, Mark J.

Recorders

Thermal recording

G01D 1510

Patent

active

051423022

ABSTRACT:
A sublimation type thermal transfer color video printer generates a heating pulse having a duration corresponding to the tone level of the pixel to be printed, according to the data in a reference tone table stored in a memory, to energize the corresponding heating element of a thermal heat during the duration. The tone table includes a variable data which is the basis of determining the duration of the first energizing pulse required up to right before the coloring of a recording paper, and a fixed data which are the bases of determining the durations of subsequent energizing pulses. A variable value multiplied by these fixed data is set in a separate register. The variable data in the tone table and the variable value in the register are rewritten according to change in temperature of the thermal head.

REFERENCES:
patent: 4691211 (1987-09-01), Brownstein
patent: 4873536 (1989-10-01), Minowa et al.
patent: 4893191 (1990-01-01), Tanaka et al.

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