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2.2.6 Recorder Module
2.2.6.1 General
This module is used to drive the heat-sensitive printer.
2.2.6.2 Principle diagram
Figure 2-9 Working principle of the recorder module
2.2.6.3 Principle
This module receives the to-be-printed data from the main board, converts them to the dot matrix
data, sends them to the heat-sensitive printer, and drives the printer.
Step Motor Drive Circuit
There is a step motor on the heat-sensitive printer. The step motor drives the paper. This circuit is
used to drive the step motor.
Printer Status Detect Circuit
This circuit detects the status of the heat-sensitive printer, and sends the status information to the
CPU system. The status information includes the position of the paper roller, status of the
heat-sensitive recorder paper and the temperature of the heat-sensitive head.
CPU System
Processing the data to be printed;
Controlling the heat-sensitive printer and step motor;
Collecting data about the status of the heat-sensitive printer, and controlling the printer;
Implementing the communication with the CPU board.
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