Olivetti d-Copia 300, Service Manual

Page: 206 / 351

2FD/2FF/2FG
1-5-32
Code Contents
Remarks
Causes Check procedures/corrective measures
*: Optional
C7410
C7450
C7800
C7810
C8010
Drum unit connector insertion prob-
lem
• Absence of the drum unit is detected.
Image formation unit fuse cut
problem
• The input voltage is above 4.5 V.
Broken external temperature ther-
mistor wire
• The input voltage is above 4.5 V.
Short-circuited external temperature
thermistor
• The input voltage is below 1.0 V.
Finisher paper conveying motor
problem (3000-sheet finisher*)
• The paper conveying motor lockup
signal is detected for 0.5 s or longer.
Drum unit connec-
tor inserted incor-
rectly.
Defective drum
unit connector.
Image formation
unit connector in-
serted incorrectly.
Defective image
formation unit
connector.
Poor contact in
the humidity sen-
sor PCB connec-
tor terminals.
Defective external
temperature ther-
mistor.
Poor contact in
the humidity sen-
sor PCB connec-
tor terminals.
Defective external
temperature ther-
mistor.
Poor contact in
the paper convey-
ing motor connec-
tor terminals.
The paper con-
veying motor mal-
functions.
Defective finisher
main PCB.
Reinsert the drum unit connector if neces-
sary.
Replace the drum unit.
Reinsert the image formation unit connec-
tor if necessary.
Replace the image formation unit.
Reinsert the connector. Also check for con-
tinuity within the connector cable. If none,
remedy or replace the cable.
Replace the humidity sensor PCB.
Reinsert the connector. Also check for con-
tinuity within the connector cable. If none,
remedy or replace the cable.
Replace the humidity sensor PCB.
Reinsert the connector. Also check for con-
tinuity within the connector cable. If none,
remedy or replace the cable.
Replace the paper conveying motor and
check for correct operation.
Replace the finisher main PCB and check
for correct operation.