Epson 4003353 - Manual (Page 101)

Stylus Color Service Manual Troubleshooting
5.2 UNIT LEVEL TROUBLESHOOTING
When a problem occurs, you can identify the defective unit according to the symptoms exhibited.
The table below lists the symptoms of certain problems. Once the problem is identified, refer to the
flowchart that corresponds to the problem.
Table 5-4. Symptom and Problem
Symptom Problem Flowchart No,
Printer does not operate at ■ LEDs do not light up.
power on Printer mechanism does not operate.
5.2.1
Error is detected ■ Error is indicated by LED indication. 5.2.2
Printing is not performed.
Failure occurs during printing ■ Abnormal printing (missing dots, etc.) 5.2.3
■ Print quality is poor
Printer does not feed the paper
■ No paper is fed.
■ Paper feed is irregular.
correctly
5.2.4
■ Paper jam occurs.
Control panel operation is
■ No response to button access.
abnormal
5.2.5
Rev.A 5-3