
DLQ-3000+
Rev. A
5-20
Table 5-17. Repair of the Printer Mechanism
Condition
Cause
Check point
Solution
Symptom :Paper is smudged with ink.
Ink smudges in the
printed area.
Ribbon mask hole is
damaged.
Check point: Check if the ribbon mask hole
is damaged.
Solution: Replace the ribbon mask.
Platen gap is not
properly adjusted.
Check point: Check for the proper PG.
Solution: Adjust the PG. (See Chapter 4.)
PG motor is
defective.
Check point: Check the PG motor coil for
correct resistance (approximately 250
Ω
).
(See Table 5-5 and Note.)
Solution: Replace the PG motor.
PGHP sensor or PG
sensor is defective.
Check point: Check the PGHP sensor for
proper condition. (See Table 5-7.)
Solution: Replace the PGHP sensor.
Symptom :False printing.
The printer prints with
no paper loaded.
Paper sensor is
defective.
Check point: Check the paper sensor for
proper condition. (See Table 5-7.)
Solution: Replace the paper sensor.
Symptom :Color printing is abnormal.
Colors mix improperly.
Ribbon motor is
defective.
Check point: Check the ribbon motor coil
for correct resistance (approximately 76
Ω
).(See Table 5-5 and Note.)
Solution: Replace the ribbon motor.
Ribbon is caught in
the ribbon mask.
Check point: Check if the mask surface
has any crack or damage.
Solution: Replace the ribbon mask.
Note: In case the PG/ribbon motor coil is shortened, check the driver circuit, since it might be
also shortened.
Summary of Contents for DLQ-3000 Minerva+
Page 1: ...EPSON 24 PIN DOT MATRIX PRINTER EPSON DLQ 3000 SERVICE MANUAL SEIKO EPSON CORPORATION 4008259 ...
Page 5: ...v REVISION SHEET Revision Issued Data Contents Rev A August 21 1997 First Release ...
Page 61: ...2 3 12 Other Sensor Circuits 2 31 ...
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 ...