Recording apparatus with controlled preheating of a thermally ac

Details Recording apparatus with controlled preheating of a thermally ac Recording apparatus with controlled preheating of a thermally ac

1994-07-18

1995-09-19

Tran, Huan H.

Incremental printing of symbolic information

Thermal marking apparatus or processes

Preheating

347 13, B41J 238

Patent

active

054519888

ABSTRACT:
A recording apparatus uses a thermal head which includes a plurality of heat generating elements divided into blocks. Recording is controlled by sequentially selecting each block during a recording period and driving the heat generating elements in that block according to recording data. Preheating is controlled by simultaneously selecting all blocks during a preheat cycle and driving all of the heat generating elements according to preheat data. The energy used in preheating is insufficient to cause recording.

REFERENCES:
patent: 4432001 (1984-02-01), Inui et al.
patent: 4449136 (1984-05-01), Moriguchi et al.
patent: 4568817 (1986-02-01), Leng et al.
patent: 4963884 (1990-10-01), Kiguchi et al.
patent: 5019836 (1991-05-01), Iwata et al.
patent: 5191357 (1993-03-01), Ono

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