Epson Stylus COLOR 3000

EPSON Stylus COLOR 3000
EPSON Stylus Color 3000 Service Manual
5
-15
CAUTION
The EEPROM must be replaced with a pre-burned chip, not a blank one.
5.5 M-4J60 Printer Mechanism Repair
This section provides information that allows you to repair and replace defective components of the M-4J60
printer mechanism. Table 5-7 contains various symptoms and the corresponding causes, listed in order of
likelihood. Find the symptom in the table and troubleshoot the problem as instructed.
Table 5-7 M-4J60 Printer Mechanism Repair
Condition Cause Checkpoint Solution
Symptom: The CR unit moves abnormally.
The CR unit moves
abnormally at
power on.
Cleaner lever and
CR are interfering
with each other.
Check if the cleaner lever lock is
released and the CR unit is on the
platen side.
Push the lever down
manually to take it out
of the CR's path.
Symptom: The pump unit operates abnormally
.
The pump unit
operates abnormally
at power on.
Cam select
assembly or cam
change lever in
the CR unit is
defective.
Check if it is operating normally by
cleaning, loading, and ejecting paper
using the control panel.
Replace the cam
select assembly or
cam change lever in
the CR unit.
The pump motor
is defective.
Check if the resistance of the motor
coil is as follows;
7.7 Ω ± 10 % at 25 °C per phase
(Refer to Table 5-1.)
Replace the pump
motor.
Symptom: Ink absorption is abnormal.
Ink does not drain
into the ink drain
pads normally.
Cleaning is repeated,
Ink drain tube is
caught in the
cleaner lever in
the pump unit.
Check if the tube is properly routed. Route the tube
properly.
but it does not solve
missing dot problem.
The tube is
disconnected from
the cap.
Check if the tube is securely
connected.
Connect the tube
securely.
Ink drain tube is
bent or damaged.
Check if the tubes in the pump unit
and under the cap are bent or
damaged.
Replace the pump
unit.
The cap is
damaged.
Check if the cap is damaged. Replace the pump
unit.
The pump unit is
defective.
Rotate the pump manually and see if it
rotates with constant resistance. Check
if it is damaged.
Replace the pump
unit.
The printhead is
defective.
Check if signals are transferred to the
printhead.
Replace the printhead.