Olivetti d-Copia 600 Service Manual page 192

Code
C5600 Drum surface potential problem 1
• Maximizing the grid output cannot set
the potential.
C5610 Drum surface potential problem 2
• Minimizing the grid output cannot set
the potential.
C6000 Fuser heater lamp break
• The fuser temperature does not
increase for 40 s after the fuser heat-
ers have been turned on for warming
up.
• The fuser temperature remains below
°
50 C/122
after the fuser heaters have been
turned on during stabilization.
C6020 Fuser thermistor high-temperature
detection error
• The fuser temperature exceeds 235
° °
C/455 F for 10 s.
C6030 Fuser thermistor break error
• The fuser temperature remains at 0
° °
C/32 F for 30 s continuously when
the fuser heater is on.
1-5-36
Contents
°
F for 10 s continuously
Causes
Deteriorated main
charger.
Grid or main
charger shield is
dirty.
Defective drum
surface potential
sensor.
Defective high volt-
age PWB.
Defective engine
PWB.
Defective drum
surface potential
sensor.
Defective high volt-
age PWB.
Installation defec-
tiveness on fuser
thermistor M and
S.
Defective fuser
thermostat.
Installation defec-
tiveness on fuser
heater L, M or S.
Broken fuser
heater L, M and S
wire.
Defective engine
PWB.
Defective AC
power source
PWB.
Installation defec-
tiveness on fuser
thermistor M and
S.
Defective fuser
thermistor M and
S.
Defective engine
PWB.
Defective AC
power source
PWB.
Installation defec-
tiveness on fuser
thermistor M and
S.
Service Manual
Remarks
Check procedures/corrective measures
Check the main charger wire and replace it if
necessary (see page 1-6-33).
Clean the grid or main charger shield if nec-
essary.
Replace the drum surface potential sensor.
Replace the high voltage PWB and check
for correct operation.
Replace the engine PWB and check for cor-
rect operation.
Replace the drum surface potential sensor.
Replace the high voltage PWB and check
for correct operation.
Check the mounting state of the fuser ther-
mistor M and S. If any problem is found,
repair it.
Replace the fuser thermostat (see page 1-6-
75).
Check the mounting state of the fuser ther-
mistor L, M and S. If any problem is found,
repair it.
Check for continuity. If none, replace the
fuser heater L, M and S (see page 1-6-76).
Replace the engine PWB.
Replace the AC power source PWB.
Check the mounting state of the fuser ther-
mistor M and S. If any problem is found,
repair it.
Replace the fuser thermistor M and S (see
page 1-6-75).
Replace the engine PWB.
Replace the AC power source PWB.
Check the mounting state of the fuser ther-
mistor M and S. If any problem is found,
repair it.
Y104350-7