Epson Stylus COLOR 670 Service Manual page 62

EPSON Stylus COLOR 670
Table 3-7. Printer Mechanism Troubleshooting (continued)
Symptom Condition
Carriage
operation is CR lock lever
abnormal when is not
tuning on the released.
power.
Abnormal
carriage
operation.
Carriage
operation is
Carriage
abnormal
movement is
during the
not smooth.
printing
operation.
Troubleshooting
Cause Check Point Solution
-Check if the
drive of PF motor
is transmitted to
paper eject roller.
-If paper eject
roller revolves by
the drive from PF
motor, check if
the pump unit,
paper eject roller
and right end
gear are engaged
properly.
Manually move Clean the
the carriage and carriage guide
check if it moves shaft and
smoothly. lubricate it.
Repair the
Check the
tension
tension of the
mechanism or
timing belt.
replace it.
Check if there is
Remove any
any foreign
foreign
substances on
objects.
the carriage path.
Unit Repair (Printer Mechanism)
Table 3-7. Printer Mechanism Troubleshooting (continued)
Symptom Condition
Head FFC is
not connected
properly.
FFC is
disconnected
inside.
Printing is Carriage moves
not but no printing
performed. is performed.
I/C is
defective.
Head Unit is
defective.
Revision A
Cause Check Point Solution
Check visually if
the head FFC on
the carriage or Connect FFC
on the board is properly.
connected
properly.
Check the FFC by
using a
multimeter if Replace the
there is any FFC.
electric
conductivity.
Install a new I/C
and perform the Replace I/C.
self-test.
If the condition
does not
improve even
after 2 or 3 times
Replace the
of cleaning
head unit.
operation,
replace the head
unit and perform
the self-test.
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