Error Name/Error Condition/Major Cause/Solution
Temperature Sensor Shorted Error
The average of the output from the temperature sensor is 31 or less for 5
seconds.
• Temperature sensor defective
• IOB (PCB17) defective
• Temperature sensor defective
1. Reconnect the following connector.
• Temperature Sensor – IOB (PCB17) connector
2. If the connector is broken, shorted, or grounded, replace the connector.
3. Replace the temperature sensor.
• IOB (PCB17) defective
1. Update the engine software to the latest version.
2. Replace the IOB (PCB17).
SC500 (Engine: Paper Transport 3: Paper Feed, Duplex, Transport, Fusing)
Error Name/Error Condition/Major Cause/Solution
While fusing lamp ON/OFF control is performed, the zero cross signal is not
inputted within 2 seconds consecutively.
• Fusing unit defective
• PSU (PCB18) defective
• IOB (PCB17) defective
• Fusing unit defective
1. Reconnect the following connectors.
• PSU (PCB18) – IOB (PCB17) connector
2. If the connector is broken, shorted, or grounded, replace the connector.
• PSU (PCB18) defective
Replace the PSU (PCB18).
• IOB (PCB17) defective
Replace the IOB (PCB17).
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