Description: Fuser Error A message "Open Heat Error/Over heat/Heating Error' is displayed in the LCD panel.
Causes: 1. Thermostat, fuser power cable or heat lamp is open circuit. 2. Thermistor is open circuit. 3. Heat lamp ON/OFF test 4. Drive gear melted
Remedy: 1. Replace the whole fuser assembly if the thermostat is open circuit. 2. Replace the whole fuser assembly if the thermistor sensor is faulty. 3. Replace the fuser
Code: 38
Description: LSU Error A message "PMOTOR ERROR/HSYNC ERROR' is displayed in the LCD panel.
Causes: 1. LSU cable or connector faulty. 2. LSU motor is faulty. 3. Check the HSYNC signal.
Remedy: Use TECH mode to test the LSU - Replace the LSU - Replace a main board if the same error persists after replacing a LSU.
Code: 39
Description: Fuser gear melts due to overheating causing Paper Jam. Constant Jam where paper is entering Fuser unit. Fuser rollers do not turn
Causes: 1. Check the Heat Lamp, thermostat and thermistor
Remedy: 1. Use EDC Mode to test the fuser. Replace Fuser unit Replace SMPS or Main PBA as appropriate.
Code: 40
Description: Paper Empty Paper Empty is displayed in the LCD panel even when paper is loaded in the cassette.
Causes: 1. Deformed paper sensor actuator or faulty sensor. 2. SMPS PBA or Main PBA is defective 3. Faulty cables or connectors.
Remedy: 1. Replace the defective actuator or sensor. 2. Replace the SMPS PBA or MAIN PBA as appropriate.
Code: 41
Description: Paper Empty without indication The paper empty message does not appear in the LCD when the paper cassette is empty.
Causes: 1. Deformed paper sensor actuator or faulty sensor. 2. SMPS PBA or Main PBA is defective
Remedy: 1. Replace the defective actuator. 2. Replace the SMPS PBA or MAIN PBA as appropriate
Code: 42
Description: Cover Open The Cover Open message appears on the LCD even when the print cover is closed.
Causes: 1. The ‘Open Cover’ microswitch may be stuck or faulty 2. The tab on the front cover may be damaged or broken 3. Check the connector and cables between Switch and main PBA.
Remedy: 1. Use TECH mode(“cover sensor test”) to check cover switch operation. Check and replace switch if necessary. 2. Replace the front cover. 3. Replace the Main Control board or Cover Open S/W as necessary.