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CHAPTER IV TROUBLESHOOTING AND ERROR MESSAGE
This section gives the service personnel some of the troubleshooting procedures to be followed if
an error or malfunction occurs with this machine.
It is impossible anticipate all of the possible troubles which may occur in future and determine the
troubleshooting procedures, so this chapter covers some sample troubles.
However, those samples will help service personnel pinpoint and repair other defective elements if
he/she analyzes and examines them well.
4.1 PRECAUTIONS
Be sure to observe the following precautions to prevent the secondary problems from happening
during troubleshooting.
(1) Make sure to unplug an AC cord to ensure no power supply, when doing conductivity test with
a tester.
(2) When printing error occurs, pull out the thermal head cable from the connecter until the
peripheral circuit related to the thermal head works properly.
4.2 AFTER REPAIRING
Verify again that the repaired portion works properly. Then adjust and examine this machine
according to “APPENDIX 1. MAINTENANCE SOFTWARE OPERATION”. It is recommended to
record and store actual troubleshooting and repair procedures to accumulate repair know-how.