5.5 UNIT REPAIR — PRINTER MECHANISM (M-4A11)
Any problems related to the printer mechanism should be repaired according to the troubleshooting
procedures in Table 5-8.
Table 5-8. Repair of the Printer Mechanism
Symptom
Condition
Cause
Checkpoint
Solution
The pump
mechanism
does not
operate.
The PF motor
fails to rotate at
power on.
Foreign
substances are
lodged in the
mechanism gears.
Manually drive the gear
train connected to the
pump mechanism to check
if the motor rotates.
Remove any
foreign
substance.
The PF motor is
defective.
Check the coil resistance
of the motor.
Replace the
PF motor.
Ink is not
absorbed or
is poorly
absorbed.
Used ink does
not flow through
the used ink
tube during the
cleaning
operation.
The tube is not
properly
connected to the
cap.
Check that the tube is
properly connected to the
cap.
Insert the tube
properly.
The ink tube is
damaged.
Check the ink tube visually.
Replace the
tube.
The cap is
defective.
Check for any defective
part.
Replace the
head cap.
The pump is
defective.
Replace the pump to see if
this causes the ink to be
absorbed normally.
Replace the
pump unit.
The printhead is
defective.
Replace the printhead to
see if this causes the ink
to be absorbed normally.
Replace the
printhead.
The carriage
motor does
not rotate.
The carriage
motor fails to
rotate at power
on.
Foreign
substances are
lodged in the
mechanism gears.
Manually drive the timing
belt to see if the carriage
motor rotates.
Remove any
foreign
substance.
The carriage
motor is defective.
Measure the coil
resistance of the CR motor.
Replace the
carriage motor.
The carriage
does not
operate
normally at
power on
(after the
carriage has
been
manually
centered
prior to
power on).
The carriage
motor rotates,
but the carriage
does not move.
The pulley is
defective.
Check for broken or worn
pulley.
Replace the
driven pulley.
The timing belt is
defective.
Check that the timing belt
is properly inserted into
the bottom of the carriage.
Reinsert the
timing belt.
Check the timing belt for
any damage.
Replace the
timing belt.
The carriage
moves slightly
and then stops.
Carriage
movement is not
smooth.
Check whether the
carriage moves smoothly
when moved manually.
Clean and
lubricate the
carriage.
Check tension of the
timing belt.
Adjust tension
of the timing
belt.
Troubleshooting
Stylus Pro Service Manual
5-12
Rev.A
Содержание Stylus pro 7700m
Страница 1: ...EPSON COLOR INKJET PRINTER Stylus Pro SERVICE MANUAL EPSON 4004825 ...
Страница 121: ...A 2 CIRCUIT DIAGRAMS Figure A 2 C164 MAIN Board Circuit Diagram 1 Stylus Pro Service Manual Appendix Rev A A 7 ...
Страница 122: ... 5 IC6 Q2 R135 and CN13 are not mounted on the C164 MAIN Board Stylus Pro ...
Страница 123: ...Figure A 3 C164 MAIN Board Circuit Diagram 2 Stylus Pro Service Manual Appendix Rev A A 9 ...
Страница 124: ...Figure A 4 C137 PSB Board Circuit Diagram Stylus Pro Service Manual Appendix Rev A A 11 ...
Страница 125: ...Figure A 5 C137 PSE Board Circuit Diagram Rev A A 12 A 12 Rev A ...
Страница 126: ...Figure A 6 C137 PNL Board Circuit Diagram Stylus Pro Service Manual Appendix Rev A A 13 ...
Страница 127: ...A 3 CIRCUIT BOARD COMPONENT LAYOUTS Figure A 7 C164 MAIN Board Component Layout Rev A A 14 A 14 Rev A ...
Страница 128: ...Figure A 8 C137 PSB PSE Board Component Layout Stylus Pro Service Manual Appendix Rev A A 15 ...
Страница 129: ...Figure A 9 C137 PNL Board Component Layout Rev A A 16 A 16 Rev A ...
Страница 130: ...A 4 EXPLODED DIAGRAMS Figure A 10 Stylus Color Pro Exploded Diagram 1 Stylus Pro Service Manual Appendix Rev A A 17 ...
Страница 131: ...Figure A 11 Stylus Color Pro Exploded Diagram 2 Rev A A 18 A 18 Rev A ...
Страница 132: ...Figure A 12 Stylus Color Pro Exploded Diagram 3 Stylus Pro Service Manual Appendix Rev A A 19 ...
Страница 139: ...EPSON Printed in Japan 95 05 30 A ...