Epson Stylus COLOR 3000

Troubleshooting
EPSON Stylus Color 3000 Service Manual
5-18
Table 5-7 M-4J60 Printer Mechanism Repair (continued)
Condition Cause Checkpoint Solution
Symptom: Abnormal printing (continued)
Vertical lines don’t
align.
Bi-D is not
properly adjusted.

Perform necessary
adjustments.
(Refer to Chapter 4.)
White banding
occurs.
The printhead is
defective.
Use the driver to clean the printhead at
least 3 times. Run a nozzle test after
each cleaning. If there’s no
improvement, replace the printhead
and run the Self-test.
Replace the printhead.
Paper feed
mechanism does
not operate
normally.

Replace the PF motor.
Outline of the image
is not clear.
Color ink doesn’t print
Printhead angle is
not properly
adjusted.

Perform necessary
adjustment.
(Refer to Chapter 4.)
properly. Head gap is not
properly adjusted.

Perform necessary
adjustment.
(Refer to Chapter 4.)
Black and color
printheads are not
vertically aligned.

Perform necessary
adjustment.
(Refer to Chapter 4.)
The printhead is
defective.

Replace the printhead.
Symptom: Paper is fed abnormally.
Paper is not fed. Foreign objects
are lodged in the
edge guide, PF
roller, paper guide
unit, or paper
eject drive unit.
Turn the knob and check if the paper
feed mechanism is normally
functioning.
Remove the foreign
objects.
The PF motor is
defective.
Check if the resistance of the motor
coil is as follows:
10 Ω ± 10% at 25 °C per phase
(Refer to Table 5-1.)
Replace the PF motor.
The top edge of the
loaded paper is not
properly positioned.
The PF roller
surface has
collected micro
pearl powder from
glossy paper and
doesn’t grip paper
properly.
Check if micro pearl powder is
remaining on the PF roller.
Clean the PF roller.
Symptom: The printer detects paper size incorrectly.
The printer prints
beyond the printing
area.
CR PW sensor is
defective.
Load the paper and check Pins 24 and
25 on CN21 for a change in the HIGH
and LOW signals.