Thermal recording apparatus with controlled energizing time

Details Thermal recording apparatus with controlled energizing time Thermal recording apparatus with controlled energizing time

1995-05-24

1996-12-17

Tran, Huan H.

Incremental printing of symbolic information

Thermal marking apparatus or processes

Having driving circuitry for recording means

367183, B41J 236

Patent

active

055858341

ABSTRACT:
A thermal recording apparatus includes a thermal head. Printing for multi-tone density is performed by changing an energizing time of the thermal head. The apparatus has a controller for controlling the energizing time and an interrupting circuit. The controller controls the energizing time to match to a value corresponding to a tone density for printing. The interrupting circuit puts an interrupt period of energizing for the energizing time if the energizing time is equal to or more than a predetermined time. The thermal head is pre-heated when printing data is not zero so that linear relation between the energizing time and the printing density can be obtained even if the printing density is low.

REFERENCES:
patent: 3694509 (1971-01-01), Sarich
patent: 3703445 (1972-11-01), Tew
patent: 3994000 (1975-06-01), Reitter
patent: 4325777 (1982-05-01), Wolfe
patent: 4633269 (1986-12-01), Mikami et al.
patent: 4675695 (1987-06-01), Samuel
patent: 4806950 (1989-02-01), Sekine et al.
patent: 4984092 (1991-01-01), Kato et al.
patent: 5142302 (1992-08-01), Kano
Kovach, et al "Simple Precision RC Oscillator,"IBM Tech. Disclosure Bulletin vol. 16, No. 10. Mar. 1974, pp. 3174-3175.

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