Ricoh D146 Service Manual page 552

Service Call 501-584
SC No. Level
SC563-00 A
SC No. Level
SC564-00 A
D146/D147/D148/D149/D150
Error Name/Error Condition/Major Cause/Solution
Pressurized Central 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
Error Name/Error Condition/Major Cause/Solution
Pressurized Central Thermistor High Temperature Detection
(hardware)
Above (T4) degrees C detected
§
Triac short-circuit
§
IOB controller defective
§
BCU controller defective
§
Fusing control: out of control
§
Replace the IOB
§
Replace the BCU
§
Replace the fusing unit
5-78 SM