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1 Introduction ............................................................................................................................................ 4

1.1 Instructions ............................................................................................................................................... 4

1.2 General Safety Instructions ...................................................................................................................... 5

1.3 Protective Devices ................................................................................................................................... 5

1.4 Handling Electricity .................................................................................................................................. 6

1.5 Procedure in Case of Accidents .............................................................................................................. 6

2 Replacing Assembly Units .................................................................................................................... 7

2.1 Tools ......................................................................................................................................................... 7

2.2 Replacing the Printhead ........................................................................................................................... 7

2.3 Replacing the Print Roller ........................................................................................................................ 8

2.4 Removing the Casing ............................................................................................................................... 9

2.5 Replacing the Control Panel .................................................................................................................. 10

2.6 Replacing the Transport Module .............................................................................................................11

2.7 Replacing the Stepper Motor ................................................................................................................. 12

2.8 Replacing the Printhead Holder ............................................................................................................. 13

2.9 Replacing the PCB CPU ........................................................................................................................ 14

2.10 Replacing the Power Supply Unit ........................................................................................................... 15

2.11 Checking the Braking Force at the Ribbon Supply Hub ......................................................................... 16

3 Troubleshooting and Error Treatment ................................................................................................ 17

3.1 Failure of Device Functions .................................................................................................................... 17

3.2 Permanent Hardware Faults .................................................................................................................. 17

4 Block Diagram ...................................................................................................................................... 18

5 Layout Diagram PCB CPU ................................................................................................................... 19

6 Index ...................................................................................................................................................... 20

Inhaltsverzeichnis