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3 Troubleshooting
Introduction
This chapter lists fault messages and general symptoms, and provides
procedures for troubleshooting printer malfunctions.
You must operate the printer to check its performance and sometimes you
may have to reconfigure it. Always have the User’s Manual handy when you
troubleshoot because this manual does not cover printer operation or
configuration.
Troubleshooting Aids
Troubleshooting is faster and more effective if you understand the equipment
and make use of all available tools.
This manual provides a number of troubleshooting aids to help you isolate
printer malfunctions:
• “Start Here” Logic Tree............................................................... page 36
• Troubleshooting Display Messages............................................ page 37
• Message List............................................................................... page 37
• Troubleshooting Other Symptoms.............................................. page 89
• General Symptom List ................................................................ page 90
• Communications Failures ......................................................... page 112
• Diagnostic Printer Tests............................................................ page 114
• Hex Code Printout .................................................................... page 121
• ASCII Character Set ................................................................. page 123
• The Power On Sequence ......................................................... page 125
• Appendix A: Wire Data ............................................................. page 271
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