Code :

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

Code: 620
Description: K Deve service life
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: MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Error Reset and checking: Does the problem still occur after “error reset”? Go to step 3 Problem solved 3 Does the problem occur even after replacing the part(s) concerned? Go to step 4 Problem solved 4 Does the problem occur when the power is turned ON? Go to step 7 Go to step 5 5 Does the problem still occur when the power is turned On again? Go to step 7 Go to step 6 6 Does the problem occur when the power is turned ON and OFF repeatedly? Go to step 7 Go to FIP-2.33 “Noise” 7 • Replacing the MCU and Performing Checks: Does the problem still occur after replacing with the normal MCU? Check the Printer Controller. Problem solved

Code: 621
Description: C Deve service life
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: MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Error Reset and checking: Does the problem still occur after “error reset”? Go to step 3 Problem solved 3 Does the problem occur even after replacing the part(s) concerned? Go to step 4 Problem solved 4 Does the problem occur when the power is turned ON? Go to step 7 Go to step 5 5 Does the problem still occur when the power is turned On again? Go to step 7 Go to step 6 6 Does the problem occur when the power is turned ON and OFF repeatedly? Go to step 7 Go to FIP-2.33 “Noise” 7 • Replacing the MCU and Performing Checks: Does the problem still occur after replacing with the normal MCU? Check the Printer Controller. Problem solved

Code: 622
Description: M Deve service life
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: MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Error Reset and checking: Does the problem still occur after “error reset”? Go to step 3 Problem solved 3 Does the problem occur even after replacing the part(s) concerned? Go to step 4 Problem solved 4 Does the problem occur when the power is turned ON? Go to step 7 Go to step 5 5 Does the problem still occur when the power is turned On again? Go to step 7 Go to step 6 6 Does the problem occur when the power is turned ON and OFF repeatedly? Go to step 7 Go to FIP-2.33 “Noise” 7 • Replacing the MCU and Performing Checks: Does the problem still occur after replacing with the normal MCU? Check the Printer Controller. Problem solved

Code: 623
Description: Y Deve service life
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: MCU PWB Replace or reinstall the relevant part. Go to step 2 2 • Error Reset and checking: Does the problem still occur after “error reset”? Go to step 3 Problem solved 3 Does the problem occur even after replacing the part(s) concerned? Go to step 4 Problem solved 4 Does the problem occur when the power is turned ON? Go to step 7 Go to step 5 5 Does the problem still occur when the power is turned On again? Go to step 7 Go to step 6 6 Does the problem occur when the power is turned ON and OFF repeatedly? Go to step 7 Go to FIP-2.33 “Noise” 7 • Replacing the MCU and Performing Checks: Does the problem still occur after replacing with the normal MCU? Check the Printer Controller. Problem solved

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