Patent ID: 6606108
Filing Date: 2003-08-12
Classification: B41J

Abstract:
A thermal printer head high-speed driving apparatus positioned between a microcomputer and a thermal printer head for controlling an on-time of each thermal cell in the thermal printer head, said apparatus comprising:a first register portion for storing driving history information of the thermal cells in the thermal printer head corresponding to a last printed line and a line printed before last, driving information of a current thermal cell of a present line to be printed and driving information of an immediately adjacent thermal cell of the present line preceding the current thermal cell and driving information of an immediately adjacent thermal cell of the present line following of the current thermal cell; a printing data generating portion for generating driving time information for each thermal cell by logically combining the driving history information of the last printed line and the line printed before last corresponding to said current thermal cell, said driving information of said current thermal cell and said driving information of said immediately adjacent thermal cells; and a second register portion for storing said driving time information, outputting said driving time information sequentially within a predetermined time period, and combining said driving time information to generate a driving pulse for controlling an on-time duration of said current thermal cell.