Epson Stylus SCAN 2000 Service Manual page 69

EPSON Stylus Scan 2000
Symptom Condition
Only a particular dot
causes abnormal printing.
A dot is not printed
occasionally.
Abnormal printing
Black specks or dots.
A vertical line is not
aligned.
White line appears in the
image data.
Troubleshooting
Table 3-3. Repair of the Printer Mechanism (continued)
Cause Check Point
Print head surface is not
Perform the cleaning operation several times
clean.
and check printing.
(dot missing)
Perform the cleaning operation several times
The head unit is defective.
and check printing.
Capping absorber is touching
Check the head absorber visually.
the head surface.
Print head surface is not Perform the cleaning operation several times
clean. (dot-missing) and check printing.
The head FFC is disconnected
Check the FFC by using a tester.
inside.
The head FFC is out of Check if the head FFC on the board or carriage
connection. is connected surely.
Perform the cleaning operation several times
The head unit is detective.
and check printing.
I/C is defective. Install the new I/C and perform self-test.
The head FFC is out of Check if the head FFC on the board or carriage
connection. is connected surely.
The head unit is detective. Check connection with the head FFC.
Bi-directional alignment is
Perform Bi-D adjustment.
not adjusted.
Head angle is not correct. Perform head angle adjustment.
Platen gap is not correct. Perform platen gap adjustment.
Dot shooting direction is tilted
Perform the cleaning operation several times
because head surface is not
and check printing.
clean
I/C is defective. Install a new I/C and perform the self-test.
Perform the cleaning operation several times
Head unit is defective.
and check printing.
Repair of the Printer Mechanism
Revision A
Solution
Perform the cleaning.
If condition does not improve even after
the cleaning, replace the head.
Replace the head absorber if it is
deformed.
Perform the cleaning.
Replace the head FFC.
Connect the FFC properly.
If condition does not improve even after
the cleaning, replace the head.
Replace I/C.
Connect the FFC properly.
Replace the head if there is no
connection problem with the FFC.
Refer to Chapter4.
Refer to Chapter4.
Refer to Chapter4.
Perform the cleaning operation.
Replace I/C.
Replace the head unit.
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