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

LX-300+/1170
o
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.
n
Solution
Reset the release lever.
o
Fatal Error
This error will be indicated when;
-carriage error is occurred
-input voltage is abnormal
-hardware problem is occurred
n
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 procedure to identify 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.
Table 3-2. Symptoms and Solutions
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
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 and ribbon mask is
abnormal or their life are 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 C
Check Table
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