Epson Stylus CX3100 Service Manual page 25

EPSON Stylus CX3100/3200
Observation
Faulty carriage operation When power is turned on,
carriage operation is
abnormal.
Abnormal carriage
operation during printing
Printing is not carried out Carriage moves correctly
correctly. but printing is not normal.
Troubleshooting
Table 3-4. Printer Mechanism Repair (continued)
Condition Cause
There is an obstacle in CR
shift area.
CR lock is not released.
Faulty CR motor
Carriage does not move
smoothly.
Head FFC is not connected
properly.
Inside of FFC is not
connected properly.
Faulty ink cartridge
Faulty head unit
Faulty head cleaner
Troubleshooting for Printer
Check Point
Check with the naked eye whether there is an
obstacle.
Check that change lever is in the front of printer. Return the change lever to the back of
Check whether the CN13 connector and coil
resistance of the PF motor are as specified. See
Table 3-13, "Motor Resistance and Check
Point," on page 33.
Check whether any gear is damaged on the
torque transmission route of PF motor.
Check whether the internal coil resistance is just
as specified and whether the harness is connected
properly. See Table 3-13, "Motor Resistance and
Check Point," on page 33.
Operate the carriage by hand and check whether
carriage moves smoothly.
Check tension of timing belt.
Check whether there is an obstacle in carriage
route.
Check whether Head FFC is connected properly
to CN8 and CN9 of main board.
Check FFC by tester.
Set new ink cartridge and execute test printing.
Repeat cleaning and test printing alternately
several times.
Check whether dust is adhering to head cleaner.
Revision A
Remedy
Remove the obstacle.
printer by tweeters or a small driver.
Connect the PF motor to CN7 on the
main board.
Replace the printer mechanism or PF
motor.
Replace the damaged gear with a new
one.
Replace the CR motor.
Clean the CR guide shaft and lubricate.
Adjust tension or replace the belt.
Remove the obstacle.
Connect the FFC correctly.
Replace the FFC.
Replace the ink cartridge.
Replace the head unit.
Clean or replace the head cleaner.
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