Service manual
EPSON LX-300+ Revision A
Troubleshooting Troubleshooting 58
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 is occurred
-input voltage is abnormal
-hardware problem is 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.
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 Problems Check Table
When power is
applied, the printer
does not operate.
Control panel LED does not
operate at all.
Table 3
-
3 on page 59
Printer mechanism does not
operate at all.
Table 3
-
4 on page 59
When power is
applied, the printer
becomes fatal error.
• Control panel indicates fatal
error.
• The printer indicates error after
initialization.
Table 3
-
5 on page 59
Self-test print is
abnormal.
• Platen gap is not correct.
• Printhead and ribbon mask is
abnormal or their life are over.
• Vertical direction printing
quality is abnormal.
Table 3
-
6 on page 60
Paper feed is
abnormal.
• Paper feed operation is not
performed.
• Paper switching is abnormal.
• Line feed is not equal.
• Skew is generated.
Table 3
-
7 on page 60
Control panel and
switches do not
operate properly.
• LED indication is abnormal.
• Cannot input from switches.
Table 3
-
8 on page 60
Printing operation is
abnormal when it is
on-line.
• Self-test is normal, but the
printing from host computer is
abnormal.
Table 3
-
9 on page 61