Method for heating a thermal printer head apparatus that minimiz

Details Method for heating a thermal printer head apparatus that minimiz Method for heating a thermal printer head apparatus that minimiz

1995-12-29

1999-02-09

Le, N.

Incremental printing of symbolic information

Thermal marking apparatus or processes

Gradational recording

B41J 2355, G01D 1510, G01D 1516

Patent

active

058701303

ABSTRACT:
A thermal printer head (TPH) heating method for minimizing the change of temperature and voltage of the TPH and an apparatus adopting the same, including the steps of: generating successive gradation values which oscillate between the minimum and the maximum gradation values and converges on a medium value M; comparing the gradation value generated in the gradation value generating step with the pixel value; and providing the result of the comparing step to the TPH. Therefore, the heat accumulation phenomenon is reduced by uniformly distributing the heat amount of the TPH over the time and space axes so that the TPH function is improved.

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