Epson Stylus COLOR 3000 Service Manual - Page 132

Unit Level Troubleshooting, Symptom, Problem, Flowchart No.

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Troubleshooting 5.2 Unit Level Troubleshooting This section provides flowcharts which enable you to isolate the defective unit. Once the defective unit is identified by following the corresponding chart, proceed to Section 5.3 to identify more specific part to be replaced at the component level. Table 5-4. Symptom and Problem Symptom The printer does not operate at all. An error is indicated. Printing operation is abnormal. Paper is fed abnormally. Control panel operates abnormally. Problem Flowchart No. No LED indicator lights up. 1 The printer mechanism does not operate at all. An error is indicated by LED indicators. 2 The printer does not print. Abnormal printing occurs. 3 Print quality is poor. The printer feeds paper abnormally. Paper is jamming. 4 The top edge of the loaded paper is improperly positioned. Button operation has no affect on the printer. 5 5-4 Rev. A

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Troubleshooting
Rev. A
5-4
5.2 Unit Level Troubleshooting
This section provides flowcharts which enable you to isolate the defective unit. Once the defective unit is
identified by following the corresponding chart, proceed to Section 5.3 to identify more specific part to be
replaced at the component level.
Table 5-4. Symptom and Problem
Symptom
Problem
Flowchart No.
The printer does not operate at all.
No LED indicator lights up.
The printer mechanism does not operate at all.
1
An error is indicated.
An error is indicated by LED indicators.
2
Printing operation is abnormal.
The printer does not print.
Abnormal printing occurs.
Print quality is poor.
3
Paper is fed abnormally.
The printer feeds paper abnormally.
Paper is jamming.
The top edge of the loaded paper is improperly
positioned.
4
Control panel operates abnormally.
Button operation has no affect on the printer.
5