Olivetti d-Copia 6500MF Plus Service Manual page 473

Code Contents
8520 MB conveying motor error 2
When standby operation, MB
home position sensor does
not turn off within 1 s.
8800 Document finisher main
program error
Document finisher main pro-
gram error at power up.
Y116520-3
Related parts
MB conveying
motor
MB home position
sensor
MB main PWB Replace the MB main PWB
DF main PWB
Engine PWB
1-4-145
Check procedures/
corrective measures
1. Execute Mail Box - Conv of U240
finisher operation check (see page 1-3-
116).
2. Manipulate the conveying roller of the
mailbox to check it can smoothly rotate.
3. Check that the drive from the motor
reaches the conveying roller.
4. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
MB conveying motor and MB main
PWB (YC5)
5. If the wiring is disconnected, shorted or
grounded, replace the wiring.
6. Replace the MB conveying motor.
1. Execute U241 Mail Box - Motor HP to
check the finisher switch (see page 1-3-
118).
2. Check that the sensor and its mounting
bracket are correctly positioned.
3. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
MB home position sensor and MB main
PWB (YC2)
4. Replace the MB home position sensor.
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
DF main PWB (YC4) and Engine PWB
(YC18)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the DF main PWB
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
83).
2N8/2N7
Service Manual