Olivetti d-COLOR P2026, Service Manual, Page: 76 / 207

Check procedures/
corrective measures
See page 1-4-23.
See page 1-4-23.
Replace the fuser unit (see page 1-5-25).
Replace the engine PWB and check for cor-
rect operation (see page 1-5-26).
Code
6020
Contents
Abnormally high fuser
thermistor temperature
The fuser thermistor detects a
temperature higher than
240 C/464 F.
By the activation of the high
temperature error detection
circuit (230 C/446 F or more)
of fuser thermistor, the illumi-
nation of fuser heater was
forcibly turned off and 10 s
has elapsed.
Broken fuser thermistor
wire
Input from fuser thermistor is
3 or less (A/D value) continu-
ously for 1 s.
Causes
Deformed connec-
tor pin.
Defective triac.
Shorted fuser
thermistor.
Defective engine
PWB.
6030 Defective connec-
tor cable or poor
contact in the con-
nector.
Deformed connec-
tor pin.
Defective triac.
Broken fuser
thermistor wire.
Fuser thermostat
triggered.
Broken fuser
heater wire.
Defective engine
PWB.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Fuser unit and eject PWB (YC3)
Eject PWB (YC1) and engine PWB (YC19)
See page 1-4-23.
See page 1-4-23.
Replace the fuser unit (see page 1-5-25).
Reinsert the fuser unit (see page 1-5-25).
Replace the fuser unit (see page 1-5-25).
Replace the engine PWB and check for cor-
rect operation (see page 1-5-26).
1-4-22