SC No. Type Error Name/Error Condition/Major Cause/Solution
Fuse blowout occurs due to over current during power injection (output
detected for longer than 2 seconds).
• Over current of bridge unit motor
• Over current due to short-circuit in PCB
• Replace the bridge unit or side tray
• Replace the PCB of bridge unit or side tray
SC No. Type Error Name/Error Condition/Major Cause/Solution
SC780-01 D Bank 1 (Upper optional paper tray) Protection Device Intercept Error
When original source of 5V power supply is ON, protection device
intercept of 24V power system is detected.
In 24V power supply system:
• Motor defective
• Solenoid defective
• Harness short- circuit
Remove the jammed paper or slip of paper from the tray, and check if the
SC occurs by turning the main power OFF then ON. If the SC occurs
again, do the following steps. Check if the SC reoccurs by cycling the
power after each step.
1. Check if all connectors in tray 1, 2, and optional upper tray are
connected securely. Reconnect the connectors if they are
disconnected, or loose.
2. Check the harness in tray 1, 2, and optional upper tray. Replace the
harness if it is disconnected, or damaged.
3. Check if the motor runs, has no overloads, and is properly driven.
Replace the parts if there are any defects.
4. Check if there are any signs of a short circuit. Replace the parts if
there are any defects.
SC No. Type Error Name/Error Condition/Major Cause/Solution
SC781-01 D Bank 2 (Lower optional paper tray) Protection Device Intercept Error
Service Call 700-792
1001
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