Ricoh D146 Service Manual page 554

Service Call 501-584
SC No. Level
SC572-04 A
SC No. Level
SC573-00 A
D146/D147/D148/D149/D150
Error Name/Error Condition/Major Cause/Solution
Pressurized Edge Thermistor Does Not Reload
After starting continuous job with paper width of 257mm or more,
does not reach (T22) degrees C after (t313) seconds.
§
Thermistor dirt
§
Thermistor deformation, float
§
Outside input voltage guarantee
§
After excess temperature rise prevention unit operation
§
Replace the thermistor
§
Make sure that the input voltage is within acceptable limits
§
Replace the fusing unit
Error Name/Error Condition/Major Cause/Solution
Pressurized Edge Thermistor High Temperature Detection
(software)
Above (T3) degrees C detected for (t4) seconds continuously.
Detection period: 100ms, detection count: 10 times or more.
§
Triac short-circuit
§
IOB defective
§
BCU defective
§
Replace the IOB
§
Replace the BCU
§
Replace the fusing unit
5-80 SM