Epson Stylus Pro 4900/Epson Stylus Pro 4910 Revision A
TROUBLE SHOOTING Remedies for Service Call Error 58
Confidential
152A
Roll Feeding Motor
overload error
The electric current flowing when driving the motor is
irregularly large.
Roll Feeding Motor Assy cable is damaged.
Irregular load
Roll Feeding Motor Assy encoder failure
Roll Feeding Motor failure
1. Check the connection of the Roll Feeding Motor Assy
(CN601, CN602) for disconnection and damage.
2. Carry out “Encoder Check” to check if the Roll Feeding
Motor Assy encoder functions normally. (See P.399)
Replace the Roll Feeding Motor
Assy. (See P.220)
152B
Roll Feeding Motor
over speed error
Detects that it is being driven at an irregularly faster speed
than the specified value just before stopping.
Irregular load
Roll Feeding Motor Assy encoder failure
SUB Board is damaged.
Roll Feeding Motor driver failure
Carry out “Encoder Check” to check if the Roll Feeding Motor
Assy encoder functions normally. (See P.399)
1. Replace the Roll Feeding Motor
Assy. (See P.220)
2. Replace the SUB-D Board. (See
P.164)
3. Replace the Main Board. (See
P.152)
152C
Roll Feeding 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 Roll Feeding Motor Assy cable is opposite.
Roll Feeding Motor Assy encoder failure
1. Check the connection of the Roll Feeding Motor Assy
(CN601, CN602) for disconnection and wrong installation.
2. Carry out “Encoder Check” to check if the Roll Feeding
Motor Assy encoder functions normally. (See P.399)
Replace the Roll Feeding Motor
Assy. (See P.220)
152D
Roll Feeding 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)
152E
Roll Feeding 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
Roll Feeding Motor Assy encoder failure
Roll Feeding Motor failure
SUB Board is damaged.
Roll Feeding Motor driver failure
Carry out “Encoder Check” to check if the Roll Feeding Motor
Assy encoder functions normally. (See P.399)
1. Replace the Roll Feeding Motor
Assy. (See P.220)
2. Replace the SUB-D Board. (See
P.164)
3. Replace the Main Board. (See
P.152)
152F
Roll Feeding Motor
lock error
1. Connection failure of the Roll Feeding Motor Assy.
2. Detects that it is being driven at an irregularly slower speed
than the specified value.
Irregular load
Roll Feeding Motor Assy encoder failure
Roll Feeding Motor failure
1. Check the connection of the Roll Feeding Motor Assy
(CN601, CN602) for disconnection and damage.
2. Carry out “Encoder check” to check if the Roll Feeding
Motor Assy encoder functions normally. (See P.399)
Replace the Roll Feeding Motor
Assy. (See P.220)
Code Error Name Cause Check Item Remedy