Troubleshooting Tables - Epson TM-U950 Technical Manual

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Troubleshooting Tables

If a problem that can be verified by visual examination has occurred, use the tables below to
determine the cause and perform repairs.
There are three tables, divided by symptom category:
Table 4-1 Initialization Problems
Table 4-2 Printing Quality Problems
Table 4-3 Printer Mechanism Problems
The tables contain the following columns:
Problem
This is the symptom that can be verified.
Probable Cause
This is a listing of one or several possible causes that should be examined.
Level
Level A
The problem can be corrected by persons who are familiar with the printer and have general
knowledge, but special technical skills are not required.
Level B
The problem requires thorough knowledge and familiarity with the printer that should be
checked.
Checkpoint
These are one or more areas in the printer that should be checked.
Action
These are the steps to correct the problem. If the problem persists after taking these steps, check
the other possible causes listed
4-12 Troubleshooting Rev. A