• Code: 6022
• Description: Transfer Belt rotation error
• Causes: 1. The transfer belt rotation is detected since the transfer belt starts rotating until the transfer belt stops. 2. While the transfer belt is rotating, if the transfer belt position sensor (PC12) does not change, it is detected that the transfer belt is abnormal.
• Remedy: 1 During printing, does the transfer belt rotate? (Open the front cover and check it.) No Check if the transfer belt unit is installed correctly. No Replace the transfer belt unit. Others Replace PWB-A.

• Code: 6023
• Description: Toner Cartridge rack error
• Causes:
• Remedy:

• Code: 6024
• Description: Heater roller heating error
• Causes: 1. When the temperature of the heat roller does not go up by the specified value for 22 to 40 seconds after warm-up is started. Same can be said for the pressure roller temperature. 2. When the temperature of the pressure roller does not reach 80°C for 90 seconds after warm-up. It is detected as abnormal pressure roller heat up. 3. When the temperature of the heat roller does not reach does not reach 170°C within 140 seconds after the temperature of pressure roller reaches 80°C after warm-boots, it detects as abnormal heat roller temperature up. 4. When the temperature of the pressure roller does not reach 130°C within 70 seconds after the temperature of the heat roller becomes more than 170°C AND when the temperature of the pressure roller does not reach 150°C within 140 seconds, it detects as the abnormal pressure roller temperature up. 5. During printing or stand-by state, when the temperature of the heat roller goes below 70°C, it detects as abnormal heat roller low temperature. Pressure roller temperature is detected as abnormal pressure roller low temperature. 6. When the temperature of the heat roller goes above 210°C during the temperature control, it detects as abnormal heat roller high temperature. Pressure roller is detected as abnormal pressure roller high temperature. 7. For heat roller, the hard shuts down at 220°C and the thermostat shuts down at 210°C. Pressure roller hard shuts down at 205°C and thermostat shuts down at 150°C.
• Remedy: 1 Check the connection between the fusing unit and connector. - Remove the fusing unit and install it again. 2 Does heater lamp 1 (H1) light on when turning the printer on? No Replace the fusing unit. 3 Does heater lamp 2 (H2) light on when turning the printer on? No Replace the fusing unit. Others Replace PU1 (power board). Replace PWB-A.

• Code: 6025
• Description: Heater roller low temperature error
• Causes: 1. When the temperature of the heat roller does not go up by the specified value for 22 to 40 seconds after warm-up is started. Same can be said for the pressure roller temperature. 2. When the temperature of the pressure roller does not reach 80°C for 90 seconds after warm-up. It is detected as abnormal pressure roller heat up. 3. When the temperature of the heat roller does not reach does not reach 170°C within 140 seconds after the temperature of pressure roller reaches 80°C after warm-boots, it detects as abnormal heat roller temperature up. 4. When the temperature of the pressure roller does not reach 130°C within 70 seconds after the temperature of the heat roller becomes more than 170°C AND when the temperature of the pressure roller does not reach 150°C within 140 seconds, it detects as the abnormal pressure roller temperature up. 5. During printing or stand-by state, when the temperature of the heat roller goes below 70°C, it detects as abnormal heat roller low temperature. Pressure roller temperature is detected as abnormal pressure roller low temperature. 6. When the temperature of the heat roller goes above 210°C during the temperature control, it detects as abnormal heat roller high temperature. Pressure roller is detected as abnormal pressure roller high temperature. 7. For heat roller, the hard shuts down at 220°C and the thermostat shuts down at 210°C. Pressure roller hard shuts down at 205°C and thermostat shuts down at 150°C.
• Remedy: 1 Check the connection between the fusing unit and connector. - Remove the fusing unit and install it again. 2 Does heater lamp 1 (H1) light on when turning the printer on? No Replace the fusing unit. 3 Does heater lamp 2 (H2) light on when turning the printer on? No Replace the fusing unit. Others Replace PU1 (power board). Replace PWB-A.

• Code: 6026
• Description: Heater roller high temperature error
• Causes: 1. When the temperature of the heat roller does not go up by the specified value for 22 to 40 seconds after warm-up is started. Same can be said for the pressure roller temperature. 2. When the temperature of the pressure roller does not reach 80°C for 90 seconds after warm-up. It is detected as abnormal pressure roller heat up. 3. When the temperature of the heat roller does not reach does not reach 170°C within 140 seconds after the temperature of pressure roller reaches 80°C after warm-boots, it detects as abnormal heat roller temperature up. 4. When the temperature of the pressure roller does not reach 130°C within 70 seconds after the temperature of the heat roller becomes more than 170°C AND when the temperature of the pressure roller does not reach 150°C within 140 seconds, it detects as the abnormal pressure roller temperature up. 5. During printing or stand-by state, when the temperature of the heat roller goes below 70°C, it detects as abnormal heat roller low temperature. Pressure roller temperature is detected as abnormal pressure roller low temperature. 6. When the temperature of the heat roller goes above 210°C during the temperature control, it detects as abnormal heat roller high temperature. Pressure roller is detected as abnormal pressure roller high temperature. 7. For heat roller, the hard shuts down at 220°C and the thermostat shuts down at 210°C. Pressure roller hard shuts down at 205°C and thermostat shuts down at 150°C.
• Remedy: 1 Check the connection between the fusing unit and connector. - Remove the fusing unit and install it again. 2 Does heater lamp 1 (H1) light on when turning the printer on? No Replace the fusing unit. 3 Does heater lamp 2 (H2) light on when turning the printer on? No Replace the fusing unit. Others Replace PU1 (power board). Replace PWB-A.

• Code: 6027
• Description: Heater rollers thermistor error
• Causes: 1. When the temperature of the heat roller does not go up by the specified value for 22 to 40 seconds after warm-up is started. Same can be said for the pressure roller temperature. 2. When the temperature of the pressure roller does not reach 80°C for 90 seconds after warm-up. It is detected as abnormal pressure roller heat up. 3. When the temperature of the heat roller does not reach does not reach 170°C within 140 seconds after the temperature of pressure roller reaches 80°C after warm-boots, it detects as abnormal heat roller temperature up. 4. When the temperature of the pressure roller does not reach 130°C within 70 seconds after the temperature of the heat roller becomes more than 170°C AND when the temperature of the pressure roller does not reach 150°C within 140 seconds, it detects as the abnormal pressure roller temperature up. 5. During printing or stand-by state, when the temperature of the heat roller goes below 70°C, it detects as abnormal heat roller low temperature. Pressure roller temperature is detected as abnormal pressure roller low temperature. 6. When the temperature of the heat roller goes above 210°C during the temperature control, it detects as abnormal heat roller high temperature. Pressure roller is detected as abnormal pressure roller high temperature. 7. For heat roller, the hard shuts down at 220°C and the thermostat shuts down at 210°C. Pressure roller hard shuts down at 205°C and thermostat shuts down at 150°C.
• Remedy: 1 Check the connection between the fusing unit and connector. - Remove the fusing unit and install it again. 2 Does heater lamp 1 (H1) light on when turning the printer on? No Replace the fusing unit. 3 Does heater lamp 2 (H2) light on when turning the printer on? No Replace the fusing unit. Others Replace PU1 (power board). Replace PWB-A.

• Code: 6028
• Description: Pressure roller heating error
• Causes: 1. When the temperature of the heat roller does not go up by the specified value for 22 to 40 seconds after warm-up is started. Same can be said for the pressure roller temperature. 2. When the temperature of the pressure roller does not reach 80°C for 90 seconds after warm-up. It is detected as abnormal pressure roller heat up. 3. When the temperature of the heat roller does not reach does not reach 170°C within 140 seconds after the temperature of pressure roller reaches 80°C after warm-boots, it detects as abnormal heat roller temperature up. 4. When the temperature of the pressure roller does not reach 130°C within 70 seconds after the temperature of the heat roller becomes more than 170°C AND when the temperature of the pressure roller does not reach 150°C within 140 seconds, it detects as the abnormal pressure roller temperature up. 5. During printing or stand-by state, when the temperature of the heat roller goes below 70°C, it detects as abnormal heat roller low temperature. Pressure roller temperature is detected as abnormal pressure roller low temperature. 6. When the temperature of the heat roller goes above 210°C during the temperature control, it detects as abnormal heat roller high temperature. Pressure roller is detected as abnormal pressure roller high temperature. 7. For heat roller, the hard shuts down at 220°C and the thermostat shuts down at 210°C. Pressure roller hard shuts down at 205°C and thermostat shuts down at 150°C.
• Remedy: 1 Check the connection between the fusing unit and connector. - Remove the fusing unit and install it again. 2 Does heater lamp 1 (H1) light on when turning the printer on? No Replace the fusing unit. 3 Does heater lamp 2 (H2) light on when turning the printer on? No Replace the fusing unit. Others Replace PU1 (power board). Replace PWB-A.

• Code: 6029
• Description: Pressure roller low temperature error
• Causes: 1. When the temperature of the heat roller does not go up by the specified value for 22 to 40 seconds after warm-up is started. Same can be said for the pressure roller temperature. 2. When the temperature of the pressure roller does not reach 80°C for 90 seconds after warm-up. It is detected as abnormal pressure roller heat up. 3. When the temperature of the heat roller does not reach does not reach 170°C within 140 seconds after the temperature of pressure roller reaches 80°C after warm-boots, it detects as abnormal heat roller temperature up. 4. When the temperature of the pressure roller does not reach 130°C within 70 seconds after the temperature of the heat roller becomes more than 170°C AND when the temperature of the pressure roller does not reach 150°C within 140 seconds, it detects as the abnormal pressure roller temperature up. 5. During printing or stand-by state, when the temperature of the heat roller goes below 70°C, it detects as abnormal heat roller low temperature. Pressure roller temperature is detected as abnormal pressure roller low temperature. 6. When the temperature of the heat roller goes above 210°C during the temperature control, it detects as abnormal heat roller high temperature. Pressure roller is detected as abnormal pressure roller high temperature. 7. For heat roller, the hard shuts down at 220°C and the thermostat shuts down at 210°C. Pressure roller hard shuts down at 205°C and thermostat shuts down at 150°C.
• Remedy: 1 Check the connection between the fusing unit and connector. - Remove the fusing unit and install it again. 2 Does heater lamp 1 (H1) light on when turning the printer on? No Replace the fusing unit. 3 Does heater lamp 2 (H2) light on when turning the printer on? No Replace the fusing unit. Others Replace PU1 (power board). Replace PWB-A.