Remedy: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: FUSER ASSY, MCU PWB, FUSER HARNESS ASSY FUSER CONNECTOR, FUSER ASSY, TEMP. SENSOR ASSY H/R HEATER, P/R HEATER, LV/HV POWER SUPPLY, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • Checking the TEMP. SENSOR ASSY: Does the error occur immediately when the power is turned ON? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 4 4 • Checking the H/R HEATER and P/R HEATER: Do the H/R HEATER and P/R HEATER light when the FUSER ASSY is cold and the power is turned ON? Go to step 5 Replace the H/R HEATER , P/R HEATER 5 • Does the problem occur during the FUSER warm up? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 6 6 • Checking the MAIN HARNESS ASSY: Is there normal continuity between J21 . J32? Go to step 7 Replace the MAIN HARNESS ASSY 7 • Checking the LV/HV POWER SUPPLY: Is the voltage 5V DC between P21-1PIN . P21-2PIN? Go to step 8 Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” 8 • Checking the ON signal of HEATER ROD: Is the voltage between P/J33-1PIN . P/J12- 9PIN 0 VDC during the FUSER warm-up and 5 VDC when the warm-up is completed? Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” Replace the MCU PWB-XL
Code: 536
Description: Fuser Unit malfunction (Time out)
Remedy: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: FUSER ASSY, MCU PWB, FUSER HARNESS ASSY FUSER CONNECTOR, FUSER ASSY, TEMP. SENSOR ASSY H/R HEATER, P/R HEATER, LV/HV POWER SUPPLY, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • Checking the TEMP. SENSOR ASSY: Does the error occur immediately when the power is turned ON? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 4 4 • Checking the H/R HEATER and P/R HEATER: Do the H/R HEATER and P/R HEATER light when the FUSER ASSY is cold and the power is turned ON? Go to step 5 Replace the H/R HEATER , P/R HEATER 5 • Does the problem occur during the FUSER warm up? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 6 6 • Checking the MAIN HARNESS ASSY: Is there normal continuity between J21 . J32? Go to step 7 Replace the MAIN HARNESS ASSY 7 • Checking the LV/HV POWER SUPPLY: Is the voltage 5V DC between P21-1PIN . P21-2PIN? Go to step 8 Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” 8 • Checking the ON signal of HEATER ROD: Is the voltage between P/J33-1PIN . P/J12- 9PIN 0 VDC during the FUSER warm-up and 5 VDC when the warm-up is completed? Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” Replace the MCU PWB-XL
Code: 537
Description: Fuser Unit malfunction (Overheat)
Remedy: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: FUSER CONNECTOR, TEMP. SENSOR ASSY, H/R HEATER P/R HEATER, FUSER ASSY, MAIN HARNESS ASSY MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • FUSER CONNECTOR Is the FUSER CONNECTOR securely connected when the FUSER ASSY is mounted? Go to step 4 Check the FUSER CONNECTOR 4 • Checking the TEMP. SENSOR ASSY: Does the error occur immediately when the power is turned ON? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 5 5 • Checking the H/R HEATER and P/R HEATER: Do the H/R HEATER and P/R HEATER light when the FUSER ASSY is cold and the power is turned ON? Go to step 6 Replace the H/R HEATER , P/R HEATER 6 • Does the problem occur during the FUSER warm up? Go to FIP-2.25 “Faulty TEMP. SENSOR ASSY” Go to step 7 7 • Checking the MAIN HARNESS ASSY: Is there normal continuity between J21 . J32? Go to step 8 Replace the MAIN HARNESS ASSY 8 • Checking the LV/HV POWER SUPPLY: Is the voltage 5V DC between P21-1PIN . P21-2PIN? Go to step 9 Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” 9 • Checking the HETER ROD ON signal: Is the voltage between P/J33-1PIN . P/J12- 9PIN 0 VDC during the FUSER warm-up and 5.5 VDC when the warm-up is completed? Go to FIP-2.32 “Faulty LV/HV POWER SUPPLY” Replace the MCU PWB-XL
Code: 543
Description: Rear fan malfunction
Remedy: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: DEVE. FAN, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. If an error still occurs after replacing, • With the tool: Go to step 3 • Without the tool: Go to step 4 • With the tool: Go to step 3 • Without the tool: Go to step 4 3 • Checking the DEVE. FAN: Does the DEVE. FAN function properly? . By using the diagnostics commander, check by Digital Output Test device code "60". Replace the MCU PWB-XL Go to step 4 4 • Checking the installation of DEVE. FAN: Has the DEVE. FAN been installed properly? Go to step 5 Reinstall the DEVE. FAN 5 • Checking the Main Harness: Is there breakage or faulty contact in the harness between the MCU PWB and the DEVE. FAN? Replace the MCU PWB-XL or DEVE. FAN Replace the DEVE. FAN
Code: 544
Description: Fuser Unit fan 2 malfunction
Remedy: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: FUSER CHUTE FAN, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. If an error still occurs after replacing, • With the tool: Go to step 3 • Without the tool: Go to step 4 • With the tool: Go to step 3 • Without the tool: Go to step 4 3 • Checking the FUSER CHUTE FAN: Does the FUSER CHUTE FAN function properly? . By using the diagnostics commander, check by Digital Output Test device code "64". Replace the MCU PWB-XL Go to step 4 4 • Checking the installation of FUSER CHUTE FAN: Has the FUSER CHUTE FAN been installed properly? Go to step 5 Reinstall the FUSER CHUTE FAN 5 • Checking the Main Harness: Is there breakage or faulty contact in the harness between the MCU PWB and the FUSER CHUTE FAN? Replace the MCU PWB-XL or FUSER CHUTE FAN Replace the FUSER CHUTE FAN
Code: 545
Description: Fuser Unit fan 1 malfunction
Remedy: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: FUSER FAN-1, MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. If an error still occurs after replacing, • With the tool: Go to step 3 • Without the tool: Go to step 4 • With the tool: Go to step 3 • Without the tool: Go to step 4 3 • Checking the FUSER FAN-1: Does the FUSER FAN-1 function properly? . By using the diagnostics commander, check by Digital Output Test device code "63". Replace the MCU PWB-XL Go to step 4 4 • Checking the installation of FUSER FAN-1: Has the FUSER FAN-1 been installed properly? Go to step 5 Reinstall the FUSER FAN-1 5 • Checking the Main Harness: Is there breakage or faulty contact in the harness between the MCU PWB and the FUSER FAN-1? Replace the MCU PWB-XL or FUSER FAN-1 Replace the FUSER FAN-1