JPH01131542U

JPH01131542U -

Info

Publication number: JPH01131542U
Application number: JP2881488U
Authority: JP
Priority date: 1988-03-04
Filing date: 1988-03-04
Publication date: 1989-09-06

Description

[Brief explanation of the drawing]

第１図は本考案の感熱記録装置のブロツク図、
第２図は従来の感熱記録装置のブロツク図、第３
図はサーマルヘツドの印字濃度の温度特性図、第
４図はサーマルヘツドの印字濃度の湿度特性図、
第５図は本考案の感熱記録装置のフローチヤート
である。１…ＣＰＵ、２…メモリ、３…インタフエース
、４…ドライバ、５…サーマルヘツド、６…Ａ／
Ｄコンバータ、７…温度センサ、８…湿度センサ
。 Figure 1 is a block diagram of the thermal recording device of the present invention.
Figure 2 is a block diagram of a conventional thermal recording device;
The figure is a temperature characteristic diagram of the print density of the thermal head, and Figure 4 is a humidity characteristic diagram of the print density of the thermal head.
FIG. 5 is a flowchart of the thermal recording device of the present invention. 1...CPU, 2...Memory, 3...Interface, 4...Driver, 5...Thermal head, 6...A/
D converter, 7...temperature sensor, 8...humidity sensor.

Claims

[Scope of claim for utility model registration] A thermal head that prints on recording paper, a driver that drives the thermal head, a temperature sensor that detects the temperature of the thermal head, a humidity sensor that detects ambient humidity, and a reference temperature. A thermal recording device comprising: a memory that stores a temperature sensor, a reference temperature, a humidity sensor output, and a reference humidity; and a control circuit that calculates the amount of current applied to a thermal head based on the output of a temperature sensor, a reference temperature, the output of a humidity sensor, and the reference humidity, and controls a driver.