DLQ-3000+
Rev. A
5-2
5.2 Unit Repair and Replacement
This section contains flowcharts which let you isolate faulty units by following the flowchart for the
problem. Refer to Table 5-3 to determine the flowchart to follow.
Table 5-3. Symptoms and Corresponding Flowchart
Problem
Description
Flowchart No.
The printer does not operate at
all.
The LEDs and LCD on the control panel
indicate nothing.
Printer mechanism is not initialized.
Flowchart 1
The printer indicates an error
after turning on the printer.
1 or more LEDs go on or blink and a
message appears on the LCD.
After the printer mechanism is initialized, an
error is indicated.
Flowchart 2
Self-test does not print
properly.
The printer does not print.
1 or more dots are missing.
Low print quality
Monochrome print and color print switch
improperly.
Flowchart 3
Paper is fed abnormally.
The printer does not feed paper.
Paper feed length is irregular.
Paper jams frequently.
Flowchart 4
The control panel does not
operate properly.
Control panel button operation does not
affect the printer operation properly.
Panel indication is improper.
SelecType mode does not operate properly.
Printer settings set through the control panel
are not effective.
Flowchart 5
The printer does not operate
properly.
The printer run the self-test properly, but
does not print data from the host correctly.
The printer does not print.
While the printer is in operation, the host
computer goes in an error status.
Flowchart 6
Summary of Contents for DLQ-3000+
Page 1: ...EPSON EPSON EPSON France S A SERVICE MANUAL DLQ 3000 PRODUIT ...
Page 2: ...EPSON 24 PIN DOT MATRIX PRINTER EPSON DLQ 3000 SERVICE MANUAL SEIKO EPSON CORPORATION 4008259 ...
Page 6: ...v REVISION SHEET Revision Issued Data Contents Rev A August 21 1997 First Release ...
Page 62: ...2 3 12 Other Sensor Circuits 2 30 ...
Page 160: ...Chapter 6 Maintenance 6 1 Maintenance 6 1 6 1 1 Lubrication and Adhesion 6 1 ...
Page 171: ...DLQ 3000 Rev A A 6 ...
Page 172: ...Appendix Rev A A 7 A 2 Circuit Diagrams Figure A 2 C210 MAIN Board Circuit Diagram 1 2 ...
Page 173: ...DLQ 3000 Rev A A 8 ...
Page 174: ...Appendix Rev A A 9 Figure A 3 C210 MAIN Board Circuit Diagram 2 2 ...
Page 175: ...DLQ 3000 Rev A A 10 ...
Page 177: ...DLQ 3000 Rev A A 12 Figure A 5 C124 PSB Board Circuit Diagram ...
Page 180: ...Appendix Rev A A 15 Figure A 8 C210 MAIN Board Component Layout 2 2 ...
Page 181: ...DLQ 3000 Rev A A 16 Figure A 9 C124 PSB Board Component Layout ...
Page 182: ...Appendix Rev A A 17 Figure A 10 C124 PSE Board Component Layout ...
Page 189: ...EPSON SEIKO EPSON CORPORATION ...
Page 254: ...PC 437 USA Europe standard Annexe A 27 ...
Page 255: ...PC 850 Multilingue PC 860 Portugais PC 863 Français canadien PC 865 Norvégien A 28 Annexe ...
Page 256: ...PC861 Islandais BRASCII Portugais brésilien Abicomp Portugais brésilien Annexe A 29 ...
Page 259: ...A 32 Annexe ...
Page 262: ...Utilisation du sommaire des commandes A 10 V Vitesse 2 25 W Windows Microsoft 1 17 18 Index 3 ...