Epson Stylus 1500 Service Manual page 145

Table 5-7. Repair of the Printer Mechanism (Continued)
Symptom Condition
The
carriage
does not The carriage
operate motor rotates,
normally but the carriage
at power does not move.
on (after
the
carriage
has been
The carriage
manually
moves slightly
centered
and then stops.
prior to
power on).
The carriage
Printer
moves, but no
does not
printing is
print.
performed.
Printer
does not
operate.
A particular dot
is not printed.
Abnormal
printing.
A dot is not
printed
occasionally.
EPSON Stylus 1500 Service Manual
Cause
The pulley is Check for broken or worn
defective. pulley.
Check that the timing belt
is properly inserted into
The timing belt is
the bottom of the carriage.
defective.
Check the timing belt for
any damage.
Check whether the
carriage moves smoothly
Carriage
when moved manually.
movement is not
smooth.
Check tension of the
timing belt.
The head cable is Check whether the head
disconnected. cable is disconnected.
The head cable is Replace the head cable to
defective. see if operation is normal.
Replace the printhead to
The printhead is
see if the printhead
defective.
operates normally.
Ink absorption is See "Ink is not absorbed"
poor. on the previous page.
Test pump using the
Pump may be
procedure described on
broken.
page 5-17.
Printhead surface Perform the cleaning
is not clean. operation.
The head cable is Check whether the head
disconnected. cable is disconnected.
The head cable is Replace the head cable to
defective. see if operation is normal.
The printhead is
Replace the printhead.
defective.
Printhead surface Check the front of the
is not clean. printhead.
The ink cartridge Check whether the ink
is expired. cartridge has expired.
Check whether the cable
is properly plugged into
Insufficient
the connector.
contact of the
head cable.
Check that contacts are
clean.
Troubleshooting
Checkpoint Solution
Replace the
driven pulley.
Reinsert the
timing belt.
Replace the
timing belt.
Clean and
lubricate the
carriage.
Adjust tension of
the timing belt.
Reconnect the
head cable.
Replace the
head cable.
Replace the
printhead.
Replace pump.
Clean.
Reconnect the
head cable.
Replace the
head cable.
Replace the
printhead.
Clean.
Replace the ink
cartridge.
Plug the cable
into the
connector
properly.
Clean.
5-15