3
1 Introduction............................................................................................................................................4
1.1 Instructions...............................................................................................................................................4
1.1 General Safety.........................................................................................................................................5
1.2 Safety Markings .......................................................................................................................................5
1.3 Handling Electricity ..................................................................................................................................6
1.4 Conduct during Accidents ........................................................................................................................6
2 Changing Assembly Parts..................................................................................................................... 7
2.1 Tools.........................................................................................................................................................7
2.2 Changing the Control Panel.....................................................................................................................7
2.3 Dismounting the Cover.............................................................................................................................8
2.4 Changing the Print Mechanism................................................................................................................9
2.5 Changing the Printhead .........................................................................................................................10
2.6 Changing the Print Roller.......................................................................................................................12
2.7 Changing the Clutch and Brake of the Ribbon Rewinder.......................................................................13
2.8 Changing the Brake of the Ribbon Unwinder.........................................................................................14
2.9 Changing the Drive of the Cutter............................................................................................................15
2.10 Changing the Blade of the Cutter Unit ...................................................................................................16
2.11 Changing the Circuit Board....................................................................................................................17
2.12 Changing the Power Supply...................................................................................................................18
3 Adjustments .........................................................................................................................................19
3.1 Measuring the Winding Force................................................................................................................19
3.1.1 Testing the Winding Force of the Clutch and Break of the Ribbon...................................................19
3.1.2 Measuring the Breaking Force of the Unwinder...............................................................................20
3.2 Setting the Winding Force......................................................................................................................21
3.3 Adjusting the Print Mechanism...............................................................................................................22
3.3.1 Adjustable Elements.........................................................................................................................22
3.3.2 Settings.............................................................................................................................................23
4 Troubleshooting and Error Treatment................................................................................................ 24
4.1 Failure of Device Functions....................................................................................................................24
4.2 Permanently Occurring Hardware Errors...............................................................................................24
5 Block Diagram......................................................................................................................................25
6 Layout Diagram PCB CPU...................................................................................................................26
7 Index......................................................................................................................................................27
Table of Content
