Epson STYLUS PRO 4910 - Page 66

Epson Stylus Pro 4900/Epson Stylus Pro 4910 Revision A
TROUBLE SHOOTING Remedies for Service Call Error 67
Confidential
158F
EG Motor
lock error
1. Connection failure of the Edge Release Assy.
2. Detects that it is being driven at an irregularly slower speed
than the specified value.
 Irregular load
 Edge Release Assy encoder failure
 Edge Release Assy failure
1. Check the connection of the Edge Release Assy (CN218,
CN219) for disconnection and damage.
2. Carry out “Encoder Check” to check if the Edge Release
Assy encoder functions normally. (See P.399)
Replace the Edge Release Assy.
(See P.199)
159A
ATC Motor
overload error
The electric current flowing when driving the motor is
irregularly large.
 Irregular load
 ATC Motor Assy cable is damaged.
 ATC Motor Assy encoder failure
 ATC Motor failure
1. Check the connection of the ATC Motor Assy (CN603,
CN604) for disconnection and damage.
2. Carry out “Encoder Check” to check if the ATC Motor Assy
encoder functions normally. (See P.399)
Replace the ATC Motor Assy.
(See P.219)
159B
ATC Motor
over speed error
Detects, when accelerating/decelerating the motor, that it is
being driven at an irregularly faster speed than the specified
value.
 Irregular load
 ATC Motor Assy encoder failure
 ATC Motor failure
 SUB Board is damaged.
 ATC Motor driver failure
Carry out “Encoder Check” to check if the ATC Motor Assy
encoder functions normally. (See P.399)
1. Replace the ATC Motor Assy.
(See P.219)
2. Replace the SUB-D Board. (See
P.164)
3. Replace the Main Board. (See
P.152)
159C
ATC 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 ATC Motor Assy cable is opposite.
 ATC Motor Assy encoder failure
1. Check the connection of the ATC Motor Assy (CN603,
CN604) for disconnection and wrong installation.
2. Carry out “Encoder Check” to check if the ATC Motor Assy
encoder functions normally. (See P.399)
Replace the ATC Motor Assy.
(See P.219)
159D
ATC 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)
159E
ATC 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
 ATC Motor Assy encoder failure
 ATC Motor failure
 SUB Board is damaged.
 ATC Motor driver failure
Carry out “Encoder Check” to check if the ATC Motor Assy
encoder functions normally. (See P.399)
1. Replace the ATC Motor Assy.
(See P.219)
2. Replace the SUB-D Board. (See
P.164)
3. Replace the Main Board. (See
P.152)
Code Error Name Cause Check Item Remedy