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

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

1.2 General Safety Instructions ...................................................................................................................... 4

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

1.4 Handling Electricity .................................................................................................................................. 5

1.5 Procedure in Case of Accidents .............................................................................................................. 5

1.6 Environment ............................................................................................................................................. 5

2 Tools ........................................................................................................................................................ 6

3 Maintenance ........................................................................................................................................... 7

3.1 Cleaning by the Operator ......................................................................................................................... 7

3.2 Cleaning the Label Sensor ....................................................................................................................... 7

4 Replacing Assembly Units .................................................................................................................... 8

4.1 Replacing the Printhead ........................................................................................................................... 8

4.2 Replacing the Print Roller and the Transport Roller ............................................................................... 10

4.3 Replacing the Slipping Clutches .............................................................................................................11

4.4 Replacing the Label Sensor ................................................................................................................... 13

4.5 Replacing the PCB CPU ........................................................................................................................ 14

4.6 Replacing the Power Supply Unit ........................................................................................................... 15

5 Adjustments ......................................................................................................................................... 16

5.1 Measuring and Adjusting the Winding Torques ...................................................................................... 16

5.1.1 Measuring the Winding Torques .......................................................................................................16

5.1.2 Adjusting the Winding Torques .........................................................................................................19

5.2 Adjusting the Brake at the Label Unwinder ............................................................................................ 20

5.3 Adjusting the Label Feed Path ............................................................................................................... 21

5.4 Adjusting the Printing Mechanism .......................................................................................................... 22

5.4.1 Preparing the Printer for Adjustment ................................................................................................ 22

5.4.2 Aligning the Printhead to the Print Roller.......................................................................................... 23

5.4.3 Adjusting the Printhead Pressure ..................................................................................................... 24

5.4.4 Adjusting the Distance of the Printhead from the Paper Guiding Edge ............................................ 25

5.4.5 Adjusting the Transfer Ribbon Feed Path......................................................................................... 26

5.4.6 Final Test .......................................................................................................................................... 27

5.5 Adjusting the Tension at the Rewinder Belt and the Transport Roller Belt ............................................. 28

5.6 Adjusting the Automatic Ribbon Saver ................................................................................................... 29

5.6.1 Setting the Eccentrics ....................................................................................................................... 29

5.6.2 Adjusting the Magnetic Clutch .......................................................................................................... 30

6 Troubleshooting and Error Treatment ................................................................................................ 31

6.1 Failure of Device Functions .................................................................................................................... 31

6.2 Permanent Hardware Faults .................................................................................................................. 31

7 Block Diagram ...................................................................................................................................... 32

8 Layout Diagram PCB CPU ................................................................................................................... 33

9 Index ...................................................................................................................................................... 34

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