CAB HERMES Q4L - Table of Contents

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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
Table of Contents