Epson Stylus Pro 4400 Service Manual page 184

EPSON Stylus Pro 4400/4450/4800/4880/4880C
SERVICE REQ. 00010012
Error meaning:
CR overload (high sensitivity) error
Explanation
PWM has been being output for a certain period of time. This can be made
when load on the CR Motor is slightly increased.
Remedy / Points to be checked
1. Check the load on the CR Motor.
•
Running load of CR Motor (check by manual operation)
•
Measure the resistance value of the PF Motor.
If the CR Motor is found in short mode, replace the BOARD ASSY.,
MAIN at the same time.
•
Damage to or wear in the CR Driven Pulley
•
Damaged or worn bearing of the Carriage Unit
•
Flaws in the CR Rail caused by roller running
•
Tension of the CR timing belt
2. Replace the Motor Assy., CR (p.270)
3. Replace the C593 MAIN Board (p.226)
Troubleshooting
SERVICE REQ. 00010013
Error meaning:
PF overload (high sensitivity) error
Explanation
PWM has been being output for a certain period of time. This can be made
when load on the PF Motor is slightly increased.
Remedy / Points to be checked
1. Check the load on the PF Motor.
2. Replace the
3. Replace the
Troubleshooting Based on Panel Messages
•
Measure the resistance value of the PF Motor.
If the PF Motor is found in short mode, replace the BOARD ASSY.,
MAIN at the same time.
•
Running load of PF Motor (check by manual operation)
•
Rotation load of PF Motor
Motor Assy., PF (p.349)
C593 MAIN Board (p.226)
Revision C
184