Ricoh pro c901, Technical Bulletin

Page: 129 / 586

T
echnical
B
ulletin
PAGE: 2/2
Model:
Aries-P1.5/C1.5
Date:
10-May-11
No.:
RM077026
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Hot roller warm-up error (Fusing belt thermistor)
The temperature of the fusing belt does not reach 90 degrees Celsius for 306
seconds after the hot roller lamp turned on.
The temperature of the fusing belt does not reach the “warm-up temperature – 35
degrees Celsius (SP correlated value)” when a) the pressure roller reaches its
target core and surface temperatures, and b) the time for warm-up has elapsed.
Defective (deformed) fusing belt thermistor
Loose connection of the fusing lamps
577
A
Do SP5810 to cancel the SC fusing code. Turn the main power off, and then on.
Check the appearance of the fusing belt thermistor for any anomalies and the input
voltage.
Check if the fusing lamps are firmly connected.
Replace the fusing belt thermistor.
Replace the thermostat.