Olivetti d-Copia 3500MF Service Manual page 282

Code Contents
7411 Drum unit type mismatch
error
Absence of the drum unit is
detected.
7460 Developer shutter error
Power is turned on while the
developer shutter is locked.
7601 ID sensor error
An abnormal value is detected
in the input data to ID sensor.
7602 ID sensor error
An abnormal value is detected
in the input data to ID sensor.
7800 Broken outer temperature
sensor wire
The sensor input sampling is
greater than 255.
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. Drum unit and front PWB (YC6)
Front PWB (YC2) and engine PWB (YC8)
Different type of Install the correct drum unit.
the drum unit is
installed.
The developer Release the developer shutter (see page 1-
shutter has been 2-12).
locked.
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. Developer shutter sensor and front PWB
(YC4)
Front PWB (YC3) and engine PWB (YC7)
Defective connec- Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
tor cable or poor
contact in the con- replace the cable.
nector. ID sensor and relay PWB (YC10)
Relay PWB (YC1) and feed PWB 1 (YC14)
Feed PWB 1 (YC2) and engine PWB (YC5)
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-43).
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. ID sensor and relay PWB (YC10)
Relay PWB (YC1) and feed PWB 1 (YC14)
Feed PWB 1 (YC2) and engine PWB (YC5)
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-43).
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. Outer temperature sensor and front PWB
(YC8)
Front PWB (YC2) and engine PWB (YC8)
Defective outer Replace outer temperature sensor.
temperature sen-
sor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-43).
1-4-40
2LL/2LJ/2LH
Check procedures/
corrective measures
Y113350-5