Epson Stylus Pro 4910 Service Manual page 59

Epson Stylus Pro 4900/Epson Stylus Pro 4910
Code Error Name
1. Connection failure of the Release Sensor.
2. Detects, when accelerating/decelerating the motor, that it is
being driven at an irregularly faster speed than the specified
value.
Release Motor
153E
velocity deviation error
1. Connection failure of the Release Motor.
2. Connection failure of the Release Encoder.
3. Connection between the SUB-C Board and the Main Board
has an abnormality.
Release Motor
153F 4. Detects that it is being driven at an irregularly slower speed
lock error
than the specified value.
The home position of the Cutter is not detected.
Cutter HP Sensor Operation failure due to paper jam
1540
detection error
Cutter HP Sensor failure
Cutter Motor Assy failure
The Cutter cannot return to its home position.
Cutter
1541 Slipping of the teeth of the Cutter Timing Belt.
return error
Cutter HP Sensor failure
1. Connection between the SUB-B Board and the Main Board
has an abnormality.
2. The Cutter Unit operation is not detected.
Cutter Motor
1549
disconnection error
TROUBLE SHOOTING
Cause
Irregular load
Release Motor Assy encoder failure
Release Motor failure
SUB Board is damaged.
Release Motor driver failure
Irregular load
Release Encoder failure
Release Motor failure
Irregular load
Cutter Motor Assy cable is damaged.
Cutter Motor Assy encoder failure
Cutter Motor Assy failure
Remedies for Service Call Error
Check Item
1. Check the connection of the Release Sensor (CN307) for
disconnection and damage.
2. Carry out "Encoder Check" to check if the Release Motor
Assy encoder functions normally. (See P.399)
1. Check the connection of the Release Motor (CN305) for
disconnection and damage.
2. Check the connection of the Release Encoder (CN306) for
disconnection and damage.
3. Check the connection between the SUB-C Board and Main
Board for disconnection and damage (CN301).
4. Carry out "Encoder Check" to check if the Release Motor
Assy encoder functions normally. (See P.399)
1. Check if the paper is jammed around the Cutter Unit.
2. Check the connection of the Cutter HP Sensor (CN315) for
disconnection and damage.
3. Carry out "Sensor Check" to check if the Cutter HP Sensor
functions normally. (See P.394)
1. Check if the tension of the Cutter Timing Belt is proper.
(See P.381)
2. Carry out "Sensor Check" to check if Cutter HP Sensor
functions normally. (See P.394)
1. Check the connection between the SUB-B Board and Main
Board for disconnection and damage (CN201).
2. Check the connection of the Cutter Motor Assy (CN222,
CN223) for disconnection and damage.
3. Carry out "Encoder Check" to check if the Cutter Motor
Assy encoder functions normally. (See P.399)
Revision A
Remedy
1. Replace the Release Motor
Assy. (See P.197)
2. Replace the SUB-B Board. (See
P.162)
3. Replace the Main Board. (See
P.152)
Replace the Release Motor Assy.
(See P.197)
1. Replace the Cutter HP Sensor.
(See P.271)
2. Replace the Cutter Motor Assy.
(See P.224)
Replace the Cutter HP Sensor.
(See P.271)
Replace the Cutter Motor Assy.
(See P.224)
60
Confidential