Ricoh M281 Series - Page 474

Service Call 501-582
D255/D256/M281/M282 6-36 SM
SC No. Type Error Name/Error Condition/Major Cause/Solution
 Fusing unit defective
1. Check that no paper jam is present.
2. Reconnect the following connectors.
 Fusing Unit – Fusing Thermistor Connection PCB
connector
 Fusing Thermistor Connection PCB – IOB
connector
3. If the connector is broken, shorted, or grounded,
replace the connector.
4. Replace the fusing unit.
 Fusing thermistor connection PCB defective
Replace the fusing thermistor connection PCB.
 IOB defective
1. Update the engine software to the latest version.
2. Replace the IOB.
 Fusing thermistor (center) defective
Replace the fusing unit.
 Fusing thermostat defective
1. Reconnect the following connector.
 Fusing Unit – PSU connector
2. If the connector is broken, shorted, or grounded,
replace the connector.
3. Replace the fusing unit.
 PSU defective
Replace the PSU.