Identify Problems From Symptoms - Epson LX-300+II RTP Service Manual

EPSON LX-300+II/300+II RTP/1170II

Release Lever Error
This error will be indicated when wrong release lever operation is performed. For
example, if you change the release lever setting when the printer already starts
feeding paper, this error will be generated.

Solution
Reset the release lever.

Fatal Error
This error will be indicated when;
-carriage error has occurred
-input voltage is abnormal
-hardware problem has occurred

Solution
If it is carriage error, check if there is no obstacles for carriage to move.
If it is input voltage problem, check power supply voltage.
If it is hardware problem, check machine and electric circuit.
Troubleshooting

3.2.3 Identify Problems From Symptoms

This section describes the procedure for identifying the problems from the abnormal
symptoms. Basically unit repair or replacement should be performed, but if necessary parts
level replacement should be performed.
Find your symptom in the table below and check the corresponding table.
Symptom
When power is applied,
the printer does not
operate.
When power is applied,
the printer becomes fatal
error.
Self-test print is
abnormal.
Paper feed is abnormal.
Control panel and
switches do not operate
properly.
Printing operation is
abnormal when it is on-
line.
Troubleshooting
Table 3-2. Symptoms and Solutions
Problems
Control panel LED does not operate at
all.
Printer mechanism does not operate at
all.
• Control panel indicates fatal error.
• The printer indicates error after
initialization.
• Platen gap is not correct.
• Printhead or ribbon mask is abnormal
or their life is over.
• Vertical direction printing quality is
abnormal.
• Paper feed operation is not
performed.
• Paper switching is abnormal.
• Line feed is not equal.
• Skew is generated.
• LED indication is abnormal.
• Cannot input from switches.
• Self-test is normal, but the printing
from host computer is abnormal.
Revision D
Check Table
Table 3-3 on page 60
Table 3-4 on page 60
Table 3-5 on page 60
Table 3-6 on page 61
Table 3-7 on page 61
Table 3-8 on page 61
Table 3-9 on page 62
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