Unit Repair - Printer Mechanism (M-4E60) - Epson Stylus 1500 Service Manual

Troubleshooting
UNIT REPAIR — PRINTER MECHANISM (M-4E60)
Repair any problems with the printer mechanism using the troubleshooting procedures in the table
below.
Table 5-7. Repair of the Printer Mechanism
Symptom Condition
The pump
The PF motor
mechanism
fails to rotate at
does not
power on.
operate.
Used ink does
Ink is not not go through
absorbed or the waste ink
is poorly tube during the
absorbed. cleaning
operation.
The The carriage
carriage motor fails to
motor does rotate at power
not rotate. on.
5-14
Cause
Foreign Manually drive the gear
substances are train connected to the
lodged in the pump mechanism to check
mechanism gears. whether the knob rotates.
Check the coil resistance
The PF motor is
of the motor. Check the
defective.
PF motor drivers.
The tube is not
Check that the tube is
properly
properly connected to the
connected to the
cap.
cap.
The ink tube is
Check the ink tube visually.
damaged.
The cap is Check for any defective
defective. part.
Replace the pump to see if
The pump is
this causes the ink to be
defective.
absorbed normally.
Replace the printhead to
The printhead is
see if this causes the ink
defective.
to be absorbed normally.
The ink supply
tube or head
Check that the tube and
damper is not
head damper are properly
properly
connected to the head.
connected to the
black head.
The ink supply
tube or head
Check the ink visually.
damper is
damaged.
Foreign
Manually drive the timing
substances are
belt to see if the carriage
lodged in the
motor rotates.
mechanism gears.
The carriage Measure the coil
motor is defective. resistance of the CR motor.
Checkpoint Solution
Remove any
foreign
substances.
Replace the
PF motor. If PF
motor drivers
are bad,
replace the
main board
along with the
motor.
Insert the tube
properly.
Replace the
tube.
Replace the
head cap.
Replace the
pump unit.
Replace the
printhead.
Reinstall the
tube or damper
properly.
Replace the
ink tube or
head damper.
Remove any
foreign
substances.
Replace the
carriage motor.
EPSON Stylus 1500 Service Manual