Epson Stylus Pro 4910 Service Manual page 58

Epson Stylus Pro 4900/Epson Stylus Pro 4910
Code Error Name
When detecting the origin of the driven roller (to reset the
driven roller), the status of the Release Sensor and the current
Release sensor
roller position do not match.
1530
HP detection error
Release Sensor failure
Release Motor failure
1. Connection failure of the Release Sensor.
2. Cannot detect the switching operation status of the driven
Release Sensor
roller.
1531
error
The electric current flowing when driving the motor is
irregularly large.
Release Motor Assy cable is damaged.
Release Motor
153A
overload error
Irregular load
Release Motor Assy encoder failure
Release Motor failure
Detects that it is being driven at an irregularly faster speed
than the specified value just before stopping.
Release Motor Irregular load
153B
over speed error
Release Motor Assy encoder failure
SUB Board is damaged.
Release Motor driver failure
Detects accumulatively more than the specified number of
times that it is being driven in the opposite direction to the
Release Motor
specified driving direction.
153C
reversing error
The polarity of Release Motor Assy cable is opposite.
Release Motor Assy encoder failure
Detects that the driving period is irregularly long.
Release Motor
153D
Irregular load
driving time-out error
Firmware becomes out of control.
TROUBLE SHOOTING
Cause
Release Sensor failure
Release Motor failure
Remedies for Service Call Error
Check Item
1. Check the connection of the Release Sensor (CN307) for
disconnection and damage.
2. Carry out "Sensor Check" to check if the Release Sensor
functions normally. (See P.394)
1. Check the connection of the Release Sensor (CN307) for
disconnection and damage.
2. Carry out "Sensor Check" to check if the Release Sensor
functions normally. (See P.394)
1. Check the connection of the Release Motor Assy (CN305,
CN306) for disconnection and damage.
2. Carry out "Encoder Check" to check if the Release Motor
Assy encoder functions normally. (See P.399)
Carry out "Encoder Check" to check if the Release Motor
Assy encoder functions normally. (See P.399)
1. Check the connection of Release Motor Assy (CN305,
CN306) for disconnection and wrong installation.
2. Carry out "Encoder Check" to check if the Release Motor
Assy encoder functions normally. (See P.399)
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Revision A
Remedy
1. Replace the Release Sensor.
(See P.198)
2. Replace the Release Motor
Assy. (See P.197)
1. Replace the Release Sensor.
(See P.198)
2. Replace the Release Motor
Assy. (See P.197)
Replace the Release Motor Assy.
(See P.197)
1. Replace the Release Motor
Assy. (See P.197)
2. Replace the SUB-C Board. (See
P.163)
3. Replace the Main Board. (See
P.152)
Replace the Release Motor Assy.
(See P.197)
Replace the Main Board. (See
P.152)
59
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