Olivetti d-Copia 3500MF Service Manual page 284

Code Contents
7941 Laser scanner unit
EEPROM error
Mismatch of reading data from
two locations occurs 8 times
successively.
Mismatch between writing
data and reading data occurs
8 times successively.
8010 Punch motor error 1
When the punch motor is
driven, punch home position
sensor does not turn on within
200 ms.
8020 Punch motor error 2
Home position is not obtained
in 3 seconds after home posi-
tion is initialized or in standby.
Service Manual
Causes
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. APC PWB and LSU relay PWB (YC3)
LSU relay PWB (YC2) and engine PWB
(YC11)
Defective APC Replace the laser scanner unit (see page 1-
PWB. 5-24).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector (4000-sheet Punch motor and punch PWB (YC4)
finisher). Punch home position sensor and punch
PWB (YC8)
Punch PWB (YC1) and DF main PWB (YC7)
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector (1000-sheet Punch motor and punch PWB (YC4)
finisher). Punch home position sensor and punch
PWB (YC8)
Punch PWB (YC1) and DF main PWB (YC8)
Defective punch Replace the punch home position sensor.
home position sen-
sor.
Defective punch Replace the punch motor.
motor.
Defective PWB. Replace the punch PWB or DF main PWB
and check for correct operation.
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector (4000-sheet Punch motor and punch PWB (YC4)
finisher). Punch PWB (YC1) and DF main PWB (YC7)
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector (1000-sheet Punch motor and punch PWB (YC4)
finisher). Punch PWB (YC1) and DF main PWB (YC8)
Defective punch Replace the punch motor.
motor.
Defective PWB. Replace the punch PWB or DF main PWB
and check for correct operation.
1-4-42
2LL/2LJ/2LH
Check procedures/
corrective measures
Y113350-5