EC-PM-80320 Service Manual
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Table of Contents
Chapter 1 Printer Introduction ..............................................................................................................1
1.1 Explanation and application ............................................................................................................1
1.2 Product type....................................................................................................................................1
1.3 Characteristic..................................................................................................................................1
1.4 Parts Identification ..........................................................................................................................2
Chapter 2 Control Panel Operation.......................................................................................................1
2.1 Control Panel ..................................................................................................................................1
2.1.1 Indicator LED............................................................................................................................1
2.1.2 KEY..........................................................................................................................................1
2.2 Self-Testing .....................................................................................................................................1
2.3 Hex Dump Printing..........................................................................................................................1
2.4 Restoring FactoryPrinter Settings ..................................................................................................2
2.5 Setting Slip Stitch............................................................................................................................2
Chapter 3 Specification..........................................................................................................................1
3.1 General Specification......................................................................................................................1
3.2 Interface Specification.....................................................................................................................2
3.2.1 Cash Drawer Interface .............................................................................................................2
3.2.2 Parallel Interface ......................................................................................................................3
3.2.3 USB Interface...........................................................................................................................4
3.2.4 Serial Interface.........................................................................................................................4
3.2.5 Ethernet Interface.....................................................................................................................5
3.2.6 Power Supply Inlet ...................................................................................................................5
Chapter 4 Printer Working Principle .....................................................................................................7
4.1 Working Principle of Thermal Print Head ........................................................................................7
4.1.1 Matching with thermal head and paper ....................................................................................7
4.1.2 The structure of thermal head ..................................................................................................8
4.1.3 Print position of data.................................................................................................................9
4.1.4 Electric Character of Thermal Print Head.................................................................................9
4.1.5 Timing Signal Figure ..............................................................................................................10
4.1.6 Thermal Head Resistance......................................................................................................10
4.1.7 Thermal Head Voltage............................................................................................................10
4.2 Sensor ..........................................................................................................................................10
4.2.1 Thermal sensor ......................................................................................................................11
4.2.2 Paper Sensor .........................................................................................................................12
4.2.3 Platen Position Sensor...........................................................................................................13
4.3 Working Principle of Control Unit ..................................................................................................13
4.3.1 Structure module....................................................................................................................13
4.3.2 Part’s Main Function...............................................................................................................14
4.3.3 Function of Interface...............................................................................................................14
