Ricoh M047 - Page 152

Service Call Conditions
M047 2-4 SM Appendix
Code No. Symptom Possible Cause
530 B
Fusing fan error
 Poor connection of the fusing fan
 Fusing fan defective
The CPU detects the fusing fan lock
signal for more than 3 seconds.
531 B
PSU fan error
 Poor connection of the PSU fan
 PSU fan defective
The CPU detects the PSU fan lock
signal for more than 3 seconds.
541 A
Thermistor error
 Thermistor defective
The fusing temperature detected by
the thermistor is 0°C for 7 seconds
after the fusing relay has been turned
on.
542 A
Fusing temperature warm-up error
 Thermistor defective or
deformed
 Fusing lamp open
 Fusing thermostat open
The fusing temperature does not
increase by 7°C for 10 seconds.
The fusing temperature does not
reach more than 135°C for 24
seconds after the main switch is
turned on.
543 A
Fusing overheat error: Software
 Fusing thermistor defective
 Power supply board defective
A fusing temperature of over 235°C
is detected for 0.5 seconds by the
fusing thermistor.
544 A
Fusing overheat error: Software
 Fusing control out of control
 Power supply board defective
The machine detects an overheat
error of the hardware.
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA