Epson Stylus Pro 4900/Epson Stylus Pro 4910 Revision A
TROUBLE SHOOTING Remedies for Service Call Error 52
Confidential
113B
CR Motor
over speed error
Detects that it is being driven at an irregularly faster speed
than the specified value just before stopping.
Irregular load
CR Encoder failure
SUB Board is damaged.
CR Motor driver failure
Carry out “Encoder Check” to check if the CR Encoder
functions normally. (See P.399)
1. Replace the CR Encoder. (See
P.170)
2. Replace the SUB-B Board. (See
P.162)
3. Replace the Main Board. (See
P.152)
113C
CR 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 CR Encoder cable is opposite.
The polarity of CR Motor cable is opposite.
Slipping of the teeth of CR Timing Belt
CR Encoder failure
1. Check the following connection and installation direction.
CR Encoder to SUB Board (CN102)
CR Motor to SUB-B Board (CN204)
2. Check if the tension of the CR Timing Belt is proper. (See
P.319)
3. Carry out “Encoder Check” to check if the CR Encoder
functions normally. (See P.399)
1. Adjust the tension of the CR
Timing Belt. (See P.319)
2. Replace the CR Encoder. (See
P.170)
113D
CR Motor
driving time-out error
Detects that the driving period is irregularly long.
Irregular load
Firmware becomes out of control.
---
Replace the Main Board. (See
P.152)
113E
CR Motor
velocity deviation error
Detects, when accelerating/decelerating the motor, that it is
being driven at an irregularly faster speed than the specified
value.
Irregular load
CR Encoder failure
CR Motor failure
SUB Board is damaged.
CR Motor driver failure
1. Carry out “Encoder Check” to check if the CR Encoder
functions normally. (See P.399)
2. Carry out “Motor Measurement Adjustment (CR Motor)” to
check if the CR Motor functions normally. (See P.393)
1. Replace the CR Encoder. (See
P.170)
2. Replace the CR Motor. (See
P.168)
3. Replace the SUB-B Board. (See
P.162)
4. Replace the Main Board. (See
P.152)
113F
CR Motor
lock error
Detects that it is being driven at an irregularly slower speed
than the specified value.
CR Encoder cable is damaged.
CR Motor cable is damaged.
Irregular load
CR Encoder failure
CR Motor failure
1. Check the following connection for disconnection and
damage.
CR Encoder to SUB Board (CN102)
CR Motor to SUB-B Board (CN204)
2. Carry out “Encoder Check” to check if the CR Encoder
functions normally. (See P.399)
3. Carry out “Motor Measurement Adjustment (CR Motor)” to
check if the CR Motor functions normally. (See P.393)
1. Replace the CR Encoder. (See
P.170)
2. Replace the CR Motor. (See
P.168)
Code Error Name Cause Check Item Remedy
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