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