Ricoh MP C3004 Field Service Manual page 941

SC No. Type
SC572-05 D
SC No. Type
SC573-00 A
Error Name/Error Condition/Major Cause/Solution
After starting continuous job with paper width of 257mm or more, does
not reach (T22) degrees C after specified time (sec.)
Pressure Roller Thermistor (Edge) Does Not Reload ( Low Power)
-
• Thermistor dirt
• Thermistor deformation, float
• Outside input voltage guarantee
• After excess temperature rise prevention unit operation
1. Check the power supply voltage and reconnect the cable to the
outlet. (-05 only)
2. Replace the Pressure Roller Thermistor (Edge).
3. Replace the Fusing lamp.
4. Replace the Thermopile (Edge).
5. Replace the BCU, or PSU (AC Controller Board).
Error Name/Error Condition/Major Cause/Solution
Pressure Roller Thermistor (Edge) High Temperature Detection (software)
Above (T3) degrees C detected for specified time (sec.) continuously.
Detection period: 100ms, detection count: 10 times or more.
• Triac short-circuit
• IOB defective
• BCU defective
1. Reconnect the connector between the fusing unit and BCU.
2. Replace the Pressure Roller Thermistor (Edge).
3. Replace the harness between the fusing unit and BCU.
4. Replace the BCU.
5. Replace the Paper Transport IOB.
Service Call 501-584
933