Epson Stylus Pro 4910 Service Manual page 56

Epson Stylus Pro 4900/Epson Stylus Pro 4910
Code Error Name
Detects, when accelerating/decelerating the motor, that it is
being driven at an irregularly faster speed than the specified
value.
Irregular load
APG Motor
151E
velocity deviation error APG Motor Assy encoder failure
APG Motor failure
SUB Board is damaged.
APG Motor driver failure
1. Connection failure of the APG Motor Assy.
2. Detects that it is being driven at an irregularly slower speed
than the specified value.
APG Motor
151F
lock error
1. Detects an irregular load of the Roll Feeding Motor.
Roll Feeding Motor 2. Detects the velocity deviation error of the Roll Feeding
1520
lock retry error Motor.
1. Connection failure of the Roll Lock Sensor.
2. Cannot detect Roll lock operation.
Roll Lock Sensor
1521
detection error
1. Connection failure of the Roll Feeding Sensor.
2. Roll Feeding Sensor does not detect the end of paper.
Roll Feeding Sensor
1522
detection error
Cannot detect the end of the roll paper if it is fed.
Roll Sensor
1523
Connection failure of the Roll Sensor.
error
Roll Sensor failure
TROUBLE SHOOTING
Cause
Irregular load
APG Motor Assy encoder failure
APG Motor failure
Roll Lock Sensor failure
Roll Feeding Motor failure
Roll Feeding Motor Assy encoder failure
SUB Board is damaged.
Roll Feeding Motor driver failure
Roll Lock Sensor failure
Roll Feeding Motor failure
Roll Feeding Sensor failure
Roll Feeding Motor failure
Remedies for Service Call Error
Check Item
---
Check the connection of the APG Motor Assy (CN207,
CN206) for disconnection and damage.
1. Check if the Spindle is correctly attached to the printer.
2. Carry out "Sensor Check" to check if the Roll Lock Sensor
functions normally. (See P.394)
1. Check the connection of the Roll Lock Sensor (CN607) for
disconnection and damage.
2. Carry out "Sensor Check" to check if the Roll Lock Sensor
functions normally. (See P.394)
1. Check the connection of the Roll Feeding Sensor (CN606)
for disconnection and damage.
2. Carry out "Sensor Check" to check if the Roll Feeding
Sensor functions normally. (See P.394)
1. Check the connection of the Roll Sensor (CN605) for
disconnection and damage.
2. Carry out "Sensor Check" to check if the Roll Sensor
functions normally. (See P.394)
Revision A
Remedy
1. Replace the APG Motor Assy.
(See P.179)
2. Replace the SUB-B Board. (See
P.162)
3. Replace the Main Board. (See
P.152)
Replace the APG Motor Assy.
(See P.179)
1. Replace the Roll Lock Sensor.
(See P.217)
2. Replace the Roll Feeding Motor
Assy. (See P.220)
3. Replace the SUB-D Board. (See
P.164)
4. Replace the Main Board. (See
P.152)
1. Replace the Roll Lock Sensor.
(See P.217)
2. Replace the Roll Feeding Motor
Assy. (See P.220)
1. Replace the Roll Feeding
Sensor. (See P.222)
2. Replace the Roll Feeding Motor
Assy. (See P.220)
Replace the Roll Sensor.
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