Ricoh D065 Service Manual page 472

samplings.
Fusing unit did not attain
reload temperature within 48
s. of the start of fusing
temperature control.
Fusing lamp overheat error 1 (software)
Central thermistor detected a
temperature of 240°C at the
543 A
center of the hot roller. Fusing
temperature control software
error
Fusing lamp overheat error 1 (hardware)
The center thermistor or an end
544 A
thermistor detected a
temperature of 250°C on the hot
roller.
Fusing lamp overheat error 2
After hot roller reaches warmup
temperature, the fusing lamps
545 A
remained on at full capacity for
11 samplings (1.8 s. duration)
while the hot roller was not
rotating.
Zero cross signal malfunction
One of the following conditions is
547 D
detected 10 times:
When the main switch is on,
SM Appendix
Service Call Conditions
PSU defective
IOB defective
BICU defective
PSU defective
IOB defective
BICU defective
Thermistor damaged, or out of
position
Fusing lamp disconnected
Noise on the AC power line
3-27 D062/D063/D065/D066