Remedy: 1 Check the Fuser Assembly installation Are the Fuser Assembly, and the drawer connector (DP/J281) of the printer installed properly (without a bent pin, or any foreign or burnt objects, etc.)? Go to step 2. Reinstall the Fuser Assembly. 2 Check the Fuser Assembly connection Check the connection between the Fuser Assembly and the MCU Board, and the connection between the Fuser Assembly and the LVPS. Are P/J281, P/J28, and P/J47 connected securely? Go to step 3. Connect P/J281, P/J28, and P/J47 securely. 3 Check the connections between LVPS and the MCU Board Check the connection between the LVPS and the MCU Board. Are P/J508 and P/J29 connected securely? Go to step 4. Connect P/J508 and P/J29 securely. 4 Check the Heater Harness Assembly continuity. Is each cable of P/J281<=>P/J47 continuous? Go to step 5. Replace the Heater Harness Assembly. 5 Check the Top Harness Assembly continuity. Is each cable of P/J281<=>P/J28 continuous? Go to step 6. Replace the Top Harness Assembly. 6 Check the power to the Fuser Assembly (+5 VDC) Check if the voltage between the MCU Board ground and the P/J28-2 pin is about +5 VDC. Go to step 7. Refer to “+5 VDC Power FIP”. 7 Check after replacing the Fuser Assembly Replace the Fuser Assembly. Does the error still occur? Go to step 8. Finished. 8 Check after replacing the LVPS Replace the LVPS. Does the error still occur? Replace the MCU Board. Finished.
Remedy: 1 Check the Fuser Assembly installation Are the Fuser Assembly, and the drawer connector (DP/J281) of the printer installed properly (without a bent pin, or any foreign or burnt objects, etc.)? Go to step 2. Reinstall the Fuser Assembly. 2 Check the Fuser Assembly connection Check the connection between the Fuser Assembly and the MCU Board, and the connection between the Fuser Assembly and the LVPS. Are P/J281, P/J28, and P/J47 connected securely? Go to step 3. Connect P/J281, P/J28, and P/J47 securely. 3 Check the connections between LVPS and the MCU Board Check the connection between the LVPS and the MCU Board. Are P/J508 and P/J29 connected securely? Go to step 4. Connect P/J508 and P/J29 securely. 4 Check the Heater Harness Assembly continuity. Is each cable of P/J281<=>P/J47 continuous? Go to step 5. Replace the Heater Harness Assembly. 5 Check the Top Harness Assembly continuity. Is each cable of P/J281<=>P/J28 continuous? Go to step 6. Replace the Top Harness Assembly. 6 Check the power to the Fuser Assembly (+5 VDC) Check if the voltage between the MCU Board ground and the P/J28-2 pin is about +5 VDC. Go to step 7. Refer to “+5 VDC Power FIP”. 7 Check after replacing the Fuser Assembly Replace the Fuser Assembly. Does the error still occur? Go to step 8. Finished. 8 Check after replacing the LVPS Replace the LVPS. Does the error still occur? Replace the MCU Board. Finished.
Code: 010-420
Description: IOT Fuser Near End Warning Fuser Near End Warning
Causes:
Remedy: Replace the Fuser Assembly.
Code: 010-421
Description: IOT Fuser Life Pre Warning Detect Fuser Life Warning
Remedy: 1 Check the version of the MCU Board firmware Is the MCU Board firmware of the latest version? Replace the MCU Board. Upgrade the firmware of the MCU Board.