Olivetti d-Copia 1600 Service Manual page 114

2HA/2HB
Code
C4200 BD steady-state problem
The MIC detects a BD error for 600 ms
after the polygon motor rotation has
been stabilized.
C6000 Broken fuser heater wire
The temperature does not become
° °
100 C/212 F even if 30 s pass before
secondary stabilization.
When there is no 1
before secondary stabilization.
C6020 Abnormally high fuser unit thermistor
temperature
The fuser temperature exceeds 230
°
446 F for 40 ms.
C6050 Abnormally low fuser unit thermistor
temperature
The fuser temperature remains below
° °
90 C/194 F for 1 s.
1-4-18
Contents
° °
C/1.8 F rise in 5 s
°
C/
Causes Check procedures/corrective measures
Defective laser Replace the LSU.
diode.
Defective polygon Replace the LSU.
motor.
Defective main Replace the main PWB and check for cor-
PWB. rect operation.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation.
Poor contact in the Reinsert the connector. Also check for conti-
thermistor connec- nuity within the connector cable. If none,
tor terminals. remedy or replace the cable.
Fuser thermistor Check and reinstall if necessary.
installed incor-
rectly.
Fuser thermostat Check for continuity. If none, replace the
triggered. fuser thermostat.
Fuser heater M or Check and reinstall if necessary.
S installed incor-
rectly.
Broken fuser Check for continuity. If none, replace the
heater M or S wire. heater lamp.
Shorted thermistor. Measure the resistance. If it is 0
the thermistor.
Broken heater con- Replace the power supply PWB and check
trol circuit on the for correct operation.
power supply
PWB.
Poor contact in the Reinsert the connector. Also check for conti-
thermistor connec- nuity within the connector cable. If none,
tor terminals. remedy or replace the cable.
Broken fuser ther-
Measure the resistance. If it is
mistor wire.
the fuser thermistor.
Fuser thermistor Check and reinstall if necessary.
installed incor-
rectly.
Fuser thermostat Check for continuity. If none, replace the
triggered. fuser thermostat.
Fuser heater M or Check and reinstall if necessary.
S installed incor-
rectly.
Broken fuser Check for continuity. If none, replace the
heater M or S wire. fuser heater M or S.
Remarks
∞ Ω
Ω
, replace
, replace