Ricoh D158 - Page 284

Service Call Conditions
D158/D159/D160/D161/D170 5-20 SM
No.
Definition
Symptom Possible Cause
532 B CTL fan error (D158/D159)
Lock signal is not issued for
more than 50 consecutive
100 ms intervals, during fan
is rotating.
 Motor overload
 Loose connection
541 A
Fusing thermistor open (center)
The fusing temperature is
below 0°C for 5 seconds
(detected by the thermistor).

Fusing thermistor defective or out of
position
 Loose connectors
542
-01
A
Fusing reload failed (center) (D158/D159)
The fusing temperature
rises less than 4 degrees in
2 seconds, and this
continues 5 times
consecutively.

Fusing thermistor defective or out of
position
 Power supply board
542
-03
A
Fusing reload failed (center) (D158/D159)
The fusing temperature
does not reach the target
within 28 seconds after the
fusing lamp controller is
activated.
 Broken fusing lamp cables