SC500 (Engine: Paper Transport 1: Paper Feed, Duplex, Transport)

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC501-01	D	Paper Feed Tray Lift Motor (M9) Error (Tray 1)
		After installing paper feed tray 1, either of the following 1 to 4 is detected 5 times continuously. The lift motor (M9) excess current is detected for 80 ms. The lift sensor does not turn on when passing 10 seconds after installing the cassette. During printing, after detecting the lift sensor off, the lift sensor does not turn on when passing 1 second after the ascending control. During motor operation, the lock signal is detected for 1 second continuously and it is detected 5 times continuously.
		The lift plate does not operate properly. The drive gear does not rotate properly. The connector or FFC is not connected properly. Or, the wire or FFC is faulty. The lift motor (M9) is not properly attached, or it is faulty. The lift sensor is not properly attached, or it is faulty. The engine relay PCB (PCB21) is faulty. The firmware is not the latest version. The main/engine PCB (PCB1) is faulty.
		If the lift plate does not ascend or descend, correct it or replace it. Check if MP lift plate elevation drive gears rotate or have no excessive load. And apply the grease to the frictional parts and repair the related parts so that they can rotate properly. Reconnect the following wire connectors and clean the FFC and reconnect. If there is no continuity, replace the wire. If the FFC terminal section is deformed or FFC is broken, replace the FFC. Lift sensor - engine relay PCB (PCB21) Engine relay PCB (PCB21) - main/engine PCB (PCB1) Reattach the lift motor (M9). If it is not repaired, replace it. Reattach PF lift upper limit sensor. If not repaired, replace it. Replace the engine relay PCB (PCB21). Upgrade the engine firmware to the latest version. Replace the main/engine PCB (PCB1).

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC502-01	D	PF Lift Motor Error (Tray 2)
		After installing paper feed tray 2, either of the following 1 to 3 is detected 5 times continuously. The PF lift motor excess current is detected for 80 ms. The PF lift sensor does not turn on when passing 10 seconds after installing the cassette. During printing, after detecting the PF lift sensor off, the PF lift sensor does not turn on when passing 1 second after the ascending control.
		The lift plate does not operate properly. The drive gear does not rotate properly. The paper feeder is not properly installed. The connector or FFC is not connected properly. Or, the wire or FFC is faulty. The PF lift motor is not properly attached, or it is faulty. The PF lift sensor is not properly attached, or it is faulty. The PF main PCB is faulty. The firmware is not the latest version. The engine relay PCB (PCB21) is faulty.
		If the lift plate does not ascend or descend, correct it or replace it. Check if MP lift plate elevation drive gears rotate or have no excessive load. And apply the grease to the frictional parts and repair the related parts so that they can rotate properly. Reinstall the paper feeder. Reconnect the following wire connectors and clean the FFC and reconnect. If there is no continuity, replace the wire. If the FFC terminal section is deformed or FFC is broken, replace the FFC. PF lift sensor - PF main PCB PF lift motor - PF main PCB PF main PCB - drawer connector Drawer connector - PF main PCB (Tray 2) Reattach the PF lift motor. If it is not repaired, replace it. Reattach PF lift upper limit sensor. If not repaired, replace it. Replace the PF main PCB. Upgrade the engine firmware to the latest version. Replace the engine relay PCB (PCB21).

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC502-02	D	Paper Feed Tray Error (Tray 2)
		The steady signal does not turn on for 5 seconds continuously when the motor drives.
		The paper feed motor drive is not transmitted correctly. The connector is not properly connected or the wire is faulty. The paper feed motor is not properly attached, or it is faulty. The PF main PCB is faulty.
		Check if the paper feed roller or the drive gear rotates or have no excessive load. And apply the grease to the frictional parts and repair the related parts so that the drive gear rotates properly. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. Paper feed motor - PF main PCB Reattach the PF feed motor. If it is not repaired, replace it. Replace the PF main PCB.

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC503-01	D	PF Lift Motor Error (Tray 3)
		After installing paper feed tray 3, either of the following 1 to 3 is detected 5 times continuously. The PF lift motor excess current is detected for 80 ms. The PF lift sensor does not turn on when passing 10 seconds after installing the cassette. During printing, after detecting the PF lift sensor off, the PF lift sensor does not turn on when passing 1 second after the ascending control.
		The lift plate does not operate properly. The drive gear does not rotate properly. The paper feeder is not properly installed. The connector or FFC is not connected properly. Or, the wire or FFC is faulty. The PF lift motor is not properly attached, or it is faulty. The PF lift sensor is not properly attached, or it is faulty. The PF main PCB is faulty.
		If the lift plate does not ascend or descend, correct it or replace it. Check if MP lift plate elevation drive gears rotate or have no excessive load. And apply the grease to the frictional parts and repair the related parts so that they can rotate properly. Reinstall the paper feeder. Reconnect the following wire connectors and clean the FFC and reconnect. If there is no continuity, replace the wire. If the FFC terminal section is deformed or FFC is broken, replace the FFC. PF lift sensor - PF main PCB PF lift motor (M9) - PF main PCB PF main PCB - drawer connector Drawer connector - PF main PCB (Tray 3) Reattach the PF lift motor. If it is not repaired, replace it. Reattach PF lift upper limit sensor. If not repaired, replace it. Replace the PF main PCB.

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC503-02	D	Paper Feed Tray Error (Tray 3)
		The steady signal does not turn on for 5 seconds continuously when the motor drives.
		The paper feed motor drive is not transmitted correctly. The connector is not properly connected or the wire is faulty. The paper feed motor is not properly attached, or it is faulty. The PF main PCB is faulty.
		Check if the paper feed roller or the drive gear rotates or have no excessive load. And apply the grease to the frictional parts and repair the related parts so that the drive gear rotates properly. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. Paper feed motor - PF main PCB Reattach the PF feed motor. If it is not repaired, replace it. Replace the PF main PCB.

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC504-01	D	PF Lift Motor Error (Tray 4)
		After installing paper feed tray 4, either of the following 1 to 3 is detected 5 times continuously. The PF lift motor excess current is detected for 80 ms. The PF lift sensor does not turn on when passing 10 seconds after installing the cassette. During printing, after detecting the PF lift sensor off, the PF lift sensor does not turn on when passing 1 second after the ascending control.
		The lift plate does not operate properly. The drive gear does not rotate properly. The paper feeder is not properly installed. The connector or FFC is not connected properly. Or, the wire or FFC is faulty. The PF lift motor is not properly attached, or it is faulty. The PF lift sensor is not properly attached, or it is faulty. The PF main PCB is faulty.
		If the lift plate does not ascend or descend, correct it or replace it. Check if MP lift plate elevation drive gears rotate or have no excessive load. And apply the grease to the frictional parts and repair the related parts so that they can rotate properly. Reinstall the paper feeder. Reconnect the following wire connectors and clean the FFC and reconnect. If there is no continuity, replace the wire. If the FFC terminal section is deformed or FFC is broken, replace the FFC. PF lift sensor - PF main PCB PF lift motor - PF main PCB PF main PCB - drawer connector Drawer connector - PF main PCB (Tray 4) Reattach the PF lift motor. If it is not repaired, replace it. Reattach PF lift upper limit sensor. If not repaired, replace it. Replace the PF main PCB.

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC504-02	D	Paper Feed Tray Error (Tray 4)
		The steady signal does not turn on for 5 seconds continuously when the motor drives.
		The paper feed motor drive is not transmitted correctly. The connector is not properly connected or the wire is faulty. The paper feed motor is not properly attached, or it is faulty. The PF main PCB is faulty.
		Check if the paper feed roller or the drive gear rotates or have no excessive load. And apply the grease to the frictional parts and repair the related parts so that the drive gear rotates properly. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. Paper feed motor - PF main PCB Reattach the PF feed motor. If it is not repaired, replace it. Replace the PF main PCB.

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC520-00	D	Transport Developer Motor (M4) Error
		The steady signal does not turn on after passing 3s since the motor started up or the steady signal turns off for 2s continuously after the motor is stabilized.
		The transport developer motor (M4) drive is not transmitted correctly. The connector or FFC is not connected properly. Or, the wire or FFC is faulty. The transport developer motor (M4) is not properly attached, or it is faulty. The conveying drive unit is faulty. The firmware is not the latest version. The engine relay PCB (PCB21) is faulty. The main/engine PCB (PCB1) is faulty.
		Check if the paper conveying roller and the drive gear rotate smoothly and have no excessive load. And apply the grease to the frictional parts and repair the related parts so that the drive gear rotates smoothly. Reconnect the following wire connectors and clean the FFC and reconnect. If there is no continuity, replace the wire. If the FFC terminal section is deformed or FFC is broken, replace the FFC. Transport developer motor (M4) - engine relay PCB (PCB21) Engine relay PCB (PCB21) - main/engine PCB (PCB1) Laser unit - main/engine PCB (PCB1) Reattach the transport developer motor (M4). If it is not repaired, replace it. Replace the conveying drive unit. Upgrade the engine firmware to the latest version. Replace the engine relay PCB (PCB21). Replace the main/engine PCB (PCB1).

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC580-01	C	Paper Feeder EEPROM error (Tray 2)
		The writing data and the reading data mismatch 4 times continuously when writing.
		The paper feeder is not properly installed. The connector is not properly connected or the wire is faulty. The PF main PCB is faulty.
		Reinstall the paper feeder. Reinsert the connectors into all the connectors on the PF main PCB. Also, if there is no continuity, replace the wire. Replace the PF main PCB.

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC580-02	C	Paper Feeder EEPROM error (Tray 3)
		The writing data and the reading data mismatch 4 times continuously when writing.
		The paper feeder is not properly installed. The connector is not properly connected or the wire is faulty. The PF main PCB is faulty.
		Reinstall the paper feeder. Reinsert the connectors into all the connectors on the PF main PCB. Also, if there is no continuity, replace the wire. Replace the PF main PCB.

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC580-03	C	Paper Feeder EEPROM error (Tray 4)
		The writing data and the reading data mismatch 4 times continuously when writing.
		The paper feeder is not properly installed. The connector is not properly connected or the wire is faulty. The PF main PCB is faulty.
		Reinstall the paper feeder. Reinsert the connectors into all the connectors on the PF main PCB. Also, if there is no continuity, replace the wire. Replace the PF main PCB.