JPH0224946U - - Google Patents

Description

[Brief explanation of drawings]

Figure 1 is a block diagram showing the configuration of the present invention;
The figure is a circuit diagram showing an example of a thermal recording head drive device according to the present invention, FIG. 3 is a circuit diagram showing a specific example of the structure of the latch circuit, comparison circuit, and counter in FIG. 2, and FIG. This is a timing chart showing signal status. Explanation of symbols, 1, 1 to 1, n...Heating resistor, 2
...Thermal recording head, 3,1-3,n...Electrification drive means, 4...Timing control means, 12,1-1
2,n...shift register, 14,1-14,n...
Latch circuit, 16, 1... 16, n... Comparison circuit, 2
4... Counter, 28, 1 to 28, n... Flip-flop, 29, 1 to 29, n... Inverter, 30
, 1 to 30, n...high voltage MOS transistor, 6
0,1-60,n...Heating resistor.

Claims (1)

[Scope of claim for utility model registration] Multiple heating resistors corresponding to printed dots {1,
1, 1, 2, ..., 1, n}, the heating resistor {1, 1, 1, 2, ...
1n} energization driving means {3,
1, 3, 2,..., 3, n} for each heating resistor {1,
1, 1, 2, ..., 1, n},
In a thermal recording head drive device configured so that an energization command is provided to each energization drive means {3, 1, 3, 2, ..., 3, n} corresponding to a printed dot during one printing, energization is performed. Drive means {3, 1, 3, 2,..., 3, n}
1. A thermal recording head drive device comprising timing control means 4 for shifting the response timing to an energization command for all or part of the energization command.