Epson STYLUS Scan 2500 Service Manual page 68

EPSON Stylus Scan 2500
Symptom Condition
A vertical line is not
aligned.
Abnormal printing
(continued)
White line appears in
the image data.
Abnormal paper
Paper is not fed.
feeding.
Troubleshooting
Table 3-4. Repair of the Printer Mechanism (cont.)
Cause Check Point
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
Perform the cleaning operation several
tilted because head
times and check printing.
surface is not clean
Install a new I/C and perform the self-
I/C is defective.
test.
Perform the cleaning operation several
Head unit is defective.
times and check printing.
Check if the PF roller rotates when paper
Friction of the PF roller.
is not fed.
Abnormal operation of Check movement of the ASF hopper
the hopper. visually.
Malfunction of ASF drive
Check if the ASF gear rotates visually.
change-over.
Check if the PF roller slips during paper
Friction of the PF roller.
feeding.
Printer Related Troubleshooting
Revision A
Solution
Refer to Chapter4.
Refer to Chapter4.
Refer to Chapter4.
Perform the cleaning operation.
Replace I/C.
Replace the head unit.
Clean the PF roller by the cleaning
sheet. Replace the PF roller if it
does not recover.
Replace ASF.
Replace gears of the ASF drive
change-over.
Clean the PF roller by the cleaning
sheet. Replace the PF roller if it
does not recover.
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