Troubleshooting
Rev. A
5-19
Table 5-16. Repair of the Printer Mechanism
Condition
Cause
Check point
Solution
Symptom : Self-test does not run properly. (continued)
PG adjustment
mechanism is not
Platen gap is not
adjusted properly.
Check point: Check for the proper platen
gap.
Solution: Adjust the platen gap.
(See Chapter 4.)
properly functioning.
PG motor is
defective.
Check point:
Check the PG motor coil for proper
resistance (approximately 250
).
(See Table 5-5 and Note.)
Solution] Replace the PG motor.
PGHP sensor or PG
sensor is defective.
Check point: Check PGHP sensor.
(Refer to Table 5-7.)
Solution: Replace the sensor.
Symptom : Paper feeding is abnormal.
The printer prints, but
does not feed paper.
Paper is not fed at a
Foreign matter is
lodged in the paper
path.
Check point: Check the paper path visually.
Solution] Remove the foreign matter.
constant speed.
PF motor is not
driven properly.
Check point: Check if the motor or gear
has any foreign matter lodged, or if they are
worn or damaged.
Solution: Remove the foreign matter or
replace the PF motor or the gear.
PF motor is
defective.
Check point: Check the PF motor coil for
proper resistance (approximately 5.4
).
(See Table 5-5 and Note.)
Solution: Replace the PF motor. (Replace
the driver also, if necessary.
Symptom : Ribbon feeding is abnormal.
Ribbon is not fed.
Ribbon cartridge is
defective.
Check point: Remove the ribbon cartridge;
then turn the ribbon feed knob to check if
the ribbon is properly fed.
Solution: Replace the ribbon cartridge.
Foreign matter is
lodged in the ribbon
feed gear train.
Check point: Run the self-test to check if
the ribbon is properly fed.
Solution: Remove the foreign matter or
replace defective parts in the ribbon feed
mechanism.
Ribbon motor is
defective.
Check point: Check the ribbon motor coil
for correct resistance (approximately 76
).(See Table 5-5 and Note.)
Solution: Replace the ribbon motor.
Note: In case the PG/PF/ribbon motor coil is shortened, check the driver circuit, since it might be
also shortened.
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 ...