• Code: 8C00
• Description: The registration front sensor does not detect paper pass within the specified time after the paper was picked up from the MP tray.
• Causes: 1 Foreign object in the MP tray. 2 Registration front actuator caught in some sections of the machine. 3 Connection failure of the registration front/rear sensor harness. 4 Abrasion of the MP paper pickup roller. 5 Registration front sensor failure. 6 Main PCB failure.
• Remedy: 1 Foreign object in the MP tray Remove the foreign object. 2 Registration front actuator caught in some sections of the machine Reattach the registration front actuator. 3 Connection failure of the registration front/rear sensor harness Check the connection of the registration front/ rear sensor PCB harness, and reconnect it if necessary. 4 Abrasion of the MP paper pickup roller Replace the MP paper feeding kit. 5 Registration front sensor failure Refer to "1.3.10 Check sensor operation (function code: 32)" in Chapter 5 to check the sensor operation. If the sensor operation is faulty, replace the registration front/rear sensor PCB ASSY. 6 Main PCB failure Replace the main PCB ASSY.

• Code: 8D00
• Description: When the power switch was turned ON, the eject sensor detected paper pass or detected that the fuser cover was open.
• Causes: 1 Eject actuator caught in some sections of the machine. 2 Eject actuator failure. 3 Eject sensor failure. 4 Main PCB failure.
• Remedy: 1 Eject actuator caught in some sections of the machine Reattach the eject actuator. 2 Eject actuator failure Replace the fuser cover. 3 Eject sensor failure Refer to "1.3.10 Check sensor operation (function code: 32)" in Chapter 5 to check the sensor operation. If the sensor operation is faulty, replace the eject sensor PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.

• Code: 9000
• Description: When printing from the MP tray, the size of paper set in the MP tray does not match the size specified by the driver.
• Causes: 1 Registration rear actuator caught in some sections of the machine. 2 Registration rear sensor failure. 3 Main PCB failure.
• Remedy: 1 Registration rear actuator caught in some sections of the machine Reattach the registration rear actuator. 2 Registration rear sensor failure Replace the registration front/rear sensor PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 9100
• Description: When printing from paper tray 1, the size of paper set in paper tray 1 does not match the size specified by the driver.
• Causes: 1 Registration rear actuator caught in some sections of the machine. 2 Registration rear sensor failure. 3 Main PCB failure.
• Remedy: 1 Registration rear actuator caught in some sections of the machine Reattach the registration rear actuator. 2 Registration rear sensor failure Replace the registration front/rear sensor PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 9200
• Description: When printing from paper tray 2, the size of paper set in paper tray 2 does not match the size specified by the driver.
• Causes: 1 Registration rear actuator caught in some sections of the machine. 2 Registration rear sensor failure. 3 Main PCB failure.
• Remedy: 1 Registration rear actuator caught in some sections of the machine Reattach the registration rear actuator. 2 Registration rear sensor failure Replace the registration front/rear sensor PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 9300
• Description: When printing from the MP tray, the MP paper empty sensor detected that there was no paper set in the MP tray.
• Causes: 1 MP paper empty actuator 1 or 2 caught in some sections of the machine. 2 MP paper empty actuator 1 or 2 failure. 3 MP paper empty sensor failure. 4 High-voltage power supply PCB failure. 5 Main PCB failure.
• Remedy: 1 MP paper empty actuator 1 or 2 caught in some sections of the machine Reattach the MP paper empty actuator 1 or 2. 2 MP paper empty actuator 1 or 2 failure Replace the MP paper empty actuator 1 or 2. 3 MP paper empty sensor failure Refer to "1.3.10 Check sensor operation (function code: 32)" in Chapter 5 to check the sensor operation. If the sensor operation is faulty, replace the MP paper empty sensor PCB ASSY. 4 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 5 Main PCB failure Replace the main PCB ASSY

• Code: 9400
• Description: When printing from paper tray 1, the T1 paper feed sensor detected that there was no paper set in paper tray 1.
• Causes: 1 Connection failure of the T1 paper feed sensor harness. 2 T1 paper feed actuator caught in some sections of the machine. 3 T1 paper feed actuator failure. 4 T1 paper feed sensor failure. 5 High-voltage power supply PCB failure. 6 Main PCB failure.
• Remedy: 1 Connection failure of the T1 paper feed sensor harness Check the connection of the T1 paper feed sensor PCB harness, and reconnect it if necessary. 2 T1 paper feed actuator caught in some sections of the machine Reattach the T1 paper feed actuator. 3 T1 paper feed actuator failure Replace the T1 paper feed actuator. 4 T1 paper feed sensor failure Refer to "1.3.10 Check sensor operation (function code: 32)" in Chapter 5 to check the sensor operation. If the sensor operation is faulty, replace the T1 paper feed sensor PCB ASSY. 5 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 6 Main PCB failure Replace the main PCB ASSY.

• Code: 9500
• Description: When printing from paper tray 2, the T2 paper feed sensor detected that there was no paper set in paper tray 2.
• Causes: 1 Connection failure of the T2 paper feed sensor harness. 2 T2 paper feed actuator caught in some sections of the machine. 3 T2 paper feed actuator failure. 4 T2 paper feed sensor failure. 5 T2 relay PCB failure. 6 LT connector failure. 7 Main PCB failure.
• Remedy: 1 Connection failure of the T2 paper feed sensor harness Check the connection of the T2 paper feed sensor harness, and reconnect it if necessary. 2 T2 paper feed actuator caught in some sections of the machine Reattach the T2 paper feed actuator. 3 T2 paper feed actuator failure Replace the T2 paper feed actuator. 4 T2 paper feed sensor failure Refer to "1.3.10 Check sensor operation (function code: 32)" in Chapter 5 to check the sensor operation. If the sensor operation is faulty, replace the T2 paper feed sensor PCB ASSY. 5 T2 relay PCB failure Replace the T2 relay PCB ASSY. 6 LT connector failure Replace the LT connector 7 Main PCB failure Replace the main PCB ASSY.