Thermal printing control circuit

Details Thermal printing control circuit Thermal printing control circuit

1988-08-26

1989-10-31

Broome, H.

Recorders

Thermal recording

G01D 1510

Patent

active

048780650

ABSTRACT:
A thermal printing control circuit includes a first shift register for receiving and storing a series of serial printing image data to be printed by a plurality of thermal print elements, a second register, constituted by a plurality of registers for storing contents of the first shift register by parallelly and sequentially shifting and receiving the contents thereof, for storing printing history data of a plurality of cycles of the thermal print elements, and a logic circuit for performing a logic operation by using the printing history data of the plurality of cycles of the plurality of thermal print elements, the printing history data being stored in the second shift register, and externally supplied control timing signals and for generating drive signals representing voltage waveforms to be applied to the plurality of thermal print elements.

REFERENCES:
patent: 4567488 (1986-01-01), Moriguchi et al.
IBM Technical Disclosure Bulletin vol. 24, No. 13, Jun. 1981, "Thermal Printed Drive Circuit For High Speed Printing".

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