Olivetti d-Copia 6500MF Plus Service Manual page 416

Code Contents
4011 Polygon motor steady-state
error
After Polygon motor is stabi-
lized, the ready signal is at the
H level for 15 s continuously.
4101 BD initialization error K
After Polygon motor is driven,
the BD signal is not detected
for 1 s.
4201 BD steady-state error K
The BD signal is not detected.
Service Manual
Related parts
Polygon motor
(LSU)
Engine PWB
PD PWB K (LSU)
Engine PWB
PD PWB K (LSU)
Engine PWB
1-4-88
Check procedures/
corrective measures
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Polygon motor and Engine PWB (YC15)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the laser scanner unit (see
page 1-5-44).
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
83).
1. Confirm that the FFC wiring connector is
not distorted and connect the FFC wiring
all the way in.
Laser scanner unit and LSU relay PWB
(YC3)
LSU relay PWB (YC2) and Engine PWB
(YC11)
2. If the FFC wiring is disconnected,
replace the FFC wiring.
3. Replace the laser scanner unit (see
page 1-5-49).
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
83).
1. Confirm that the FFC wiring connector is
not distorted and connect the FFC wiring
all the way in.
Laser scanner unit and LSU relay PWB
(YC3)
LSU relay PWB (YC2) and Engine PWB
(YC11)
2. If the FFC wiring is disconnected,
shorted or grounded, replace the FFC
wiring.
3. Replace the laser scanner unit (see
page 1-5-49).
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
83).
2N8/2N7
Y116520-