Method and circuit for preventing irregularities of color printi

Details Method and circuit for preventing irregularities of color printi Method and circuit for preventing irregularities of color printi

1991-05-03

1993-02-09

Fuller, Benjamin R.

Recorders

Record receivers and/or driving means therefor

Drum

346134, 346 76PH, G01D 1524

Patent

active

051856182

ABSTRACT:
A method and a circuit for preventing the irregularities of color printing position in the heating-transcription video color printer of non-impact type, are disclosed. The inventive circuit includes a JK flip-flop, a micro-computer having the first data terminal receiving the input signal of logic "high" as level of the power supply voltage, the second data terminal outputting a printing-control signal, the third data terminal receiving an inverted output of the JK flip-flop, the fourth data terminal outputting a stepping motor drive control signal, the fifth data terminal outputting a printing-completion signal for one color, a thermal print head drive controller for transferring a thermal print head drive signal and the thermal print head drive signal for the next color line by line, a stepping motor drive controller for producing the stepping motor drive control signal when one line is printed, and drum and a thermal print head driver for printing the given color line by line, by means of receiving the signal of the thermal print head drive controller.

REFERENCES:
patent: 4586834 (1986-05-01), Hachisuga et al.
patent: 4642656 (1987-02-01), Shibuya et al.
patent: 4815869 (1989-03-01), Van Dyck
patent: 4815872 (1989-03-01), Nagashima

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