Table of Contents
2
S84-ex/S86-ex Service Manual
4.6 Checking the Head Open Error........................................................................ 50
4.7 Checking the Top Cover Open Error............................................................... 51
4.8 Adjusting the Timing Belt Tension
(Gearbox) ........................................................................................................... 52
4.9 Adjusting the Timing Belt Tension (Ribbon Motors, Optional Ribbon Saver
Motor)................................................................................................................. 53
5 Replacement....................................................................................... 55
5.1 Removing the Housing Cover.......................................................................... 56
5.1.1 Opening the Rear Housing Cover ........................................................................... 56
5.1.2 Removing the Front Housing Cover ........................................................................ 57
5.2 Replacing the Print Head.................................................................................. 59
5.2.1 Replacing the Print Head (without the Optional UHF RFID Antenna Installed)....... 59
5.2.2 Replacing the Print Head (with the Optional UHF RFID Antenna Installed)............ 61
5.3 Replacing the Platen Roller, Pressure Roller and Feed Roller..................... 64
5.3.1 Replacing the Platen Roller..................................................................................... 64
5.3.2 Replacing the Pressure Roller................................................................................. 66
5.3.3 Replacing the Media Feed Roller ............................................................................ 68
5.4 Replacing the Media Sensor ............................................................................ 70
5.5 Replacing the Main (CONT) PCB ..................................................................... 73
5.6 Replacing the Operator Panel KB PCB........................................................... 75
5.7 Replacing the Power Supply Unit.................................................................... 76
5.8 Replacing the Fan Motor .................................................................................. 77
5.9 Replacing the Timing Belt................................................................................ 78
5.9.1 Replacing the Timing Belt of Gearbox..................................................................... 78
5.9.2 Replacing the Timing Belt of Ribbon Motors ........................................................... 80
5.9.3 Replacing the Timing Belt of Ribbon Unwind Mechanism....................................... 82
5.10 Replacing the Ribbon Sensor........................................................................ 85
5.11 Replacing the Ribbon End Sensor ................................................................ 87
5.12 Replacing the Head Open Sensor ................................................................. 90
5.13 Replacing the Media Sensor Assembly Open Sensor................................. 91
5.14 Replacing the Top Cover Sensor................................................................... 92
5.15 Replacing the USB PCB ................................................................................. 93
5.16 Replacing the Torque Limiter for Ribbon Spindle ....................................... 94
5.17 Replacing the Torque Limiter for Ribbon Roller.......................................... 96
5.18 Replacing the Optional Ribbon Saver Motor Driver PCB............................ 99
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