Thermal recording system

Details Thermal recording system Thermal recording system

1992-06-26

1995-07-04

Tran, Huan H.

Incremental printing of symbolic information

Thermal marking apparatus or processes

3461351, 347224, B41J 232, B41M 526

Patent

active

054304679

ABSTRACT:
A thermal recording system having a plurality of thermal elements, accurately records and erases images on a recording medium. The images are recorded on or erased from the recording medium by selectively supplying the recording energy or erasing energy to the thermal elements. The system calculates a dot ratio concerning the proportion of the total value of mark dots and space dots to the number of total dots, in a reference area on the recording medium. Moreover, the system has a plurality of weighting tables in accordance with the dot ratio, the weighting tables include correction value respectively. The system selects one of the weighting tables and control the recording energy and the erasing energy to be supplied to the thermal elements, with reference to the correction value of the selected weighting table.

REFERENCES:
patent: 4695528 (1987-09-01), Dabisch et al.
patent: 5235345 (1993-08-01), Ohno et al.

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