Ricoh MP C3004 Field Service Manual page 939

SC No. Type
SC563-00 A
SC No. Type
SC564-00 A
Error Name/Error Condition/Major Cause/Solution
Pressure Roller Thermistor (Center) 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 (Center).
3. Replace the harness between the fusing unit and BCU.
4. Replace the BCU.
5. Replace the Paper Transport IOB.
Error Name/Error Condition/Major Cause/Solution
Pressure Roller Thermistor (Center) High Temperature Detection
(hardware)
Above (T4) degrees C detected
• Triac short-circuit
• IOB controller defective
• BCU controller defective
• Fusing control: out of control
1. Reconnect the connector between the fusing unit and BCU.
2. Replace the Pressure Roller Thermistor (center).
3. Replace the harness between the fusing unit and BCU.
4. Replace the BCU.
5. Replace the Paper Transport IOB.
Service Call 501-584
931