• Code: 6101
• Display: No Toner Open the Scanner Cover and Top Cover, then install the Toner Cartridge.
• Description: The new toner sensor detected that the toner cartridge was not set.
• Remedy: • Set the toner cartridge correctly. 1 Connection failure of the motor encoder PCB flat cable Reconnect the motor encoder PCB flat cable. 2 Connection failure of the new toner sensor PCB harness Reconnect the new toner sensor PCB harness. 3 Motor encoder PCB failure Replace the motor encoder PCB ASSY. 4 New toner sensor failure Replace the new toner sensor PCB ASSY. 5 Main PCB failure Replace the main PCB ASSY.

• Code: 6200
• Display: No Drum Open the Scanner Cover and Top Cover, then install the Drum Unit.
• Description: Detected that the drum unit was not set by GRID current error.
• Remedy: • Set the drum unit correctly. • Clean the electrodes of the drum unit. 1 Dirt on the electrodes of the drum unit Clean the electrodes of the drum unit. 2 Dirt on the high voltage power supply PCB terminal Clean the high voltage power supply PCB terminal. 3 Connection failure of the high voltage PCB flat cable Reconnect the high voltage PCB flat cable. 4 High voltage power supply PCB failure Replace the high voltage power supply PCB ASSY. 5 Main PCB failure Replace the main PCB ASSY.

• Code: 6801
• Display: Cooling Down Wait for a while
• Description: The internal temperature thermistor detected a temperature higher than the specified value.
• Remedy: • Lower the room temperature. • Keep the machine away from heating appliances.
  1 Connection failure of the internal temperature thermistor harness Reconnect the internal temperature thermistor harness. 2 Internal temperature thermistor failure Replace the Internal temperature thermistor. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 6901
• Display: Self-Diagnostic Turn the power off, then on again. Leave the machine for 15 min.
• Description: An error occurred in the fuser unit when the power switch was turned ON or sleep mode was ended.
• Remedy: 1 Connection failure of the fuser unit harnesses Reconnect each harness of the fuser unit. 2 Fuser unit failure Replace the fuser unit. 3 Low voltage power supply PCB failure Replace the low voltage power supply PCB unit. 4 Main PCB failure Replace the main PCB ASSY. Note: • Turn OFF the power switch. After the fuser unit has cooled sufficiently, turn ON the power switch again and leave the machine for ten minutes. This problem may then be cleared.

• Code: 6902
• Display: Self-Diagnostic Will Automatically Restart within 15 minutes.
• Description: Rechecking the error after the power switch was turned OFF and then ON again because an error was detected by the fuser unit. (This message is displayed for approximately 15 minutes when the machine is restarted after error code 6901 has occurred.)
• Remedy: 1 Connection failure of the fuser unit harnesses Reconnect each harness of the fuser unit. 2 Fuser unit failure Replace the fuser unit. 3 Low voltage power supply PCB failure Replace the low voltage power supply PCB unit. 4 Main PCB failure Replace the main PCB ASSY. Note: • Turn OFF the power switch. After the fuser unit has cooled sufficiently, turn ON the power switch again and leave the machine for ten minutes. This problem may then be cleared.

• Code: 6A00
• Display: Drum ! Open the Scanner Cover and Top Cover and slide the green tab across the Drum Unit several times.
• Description: Detected discharge that may be attributable to dirty corona wire on the drum unit.
• Remedy: • Slide the green tag of the drum unit left and right two or three times to clean the corona wire. • Clean the electrodes of the drum unit. • Replace the drum unit.
  1 Dirt on the electrodes of the drum unit Clean the electrodes of the drum unit. 2 Dirt on the high voltage power supply PCB terminal Clean the high voltage power supply PCB terminal. 3 Connection failure of the high voltage PCB flat cable Reconnect the high voltage PCB flat cable. 4 High voltage power supply PCB failure Replace the high voltage power supply PCB ASSY. 5 Main PCB failure Replace the main PCB ASSY.

• Code: 6F00
• Display: Print Unable ZC Turn the power off and then back on again.
• Description: Detected irregular power supply less than 100 times.
• Remedy: • Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
  1 Low voltage power supply PCB failure Replace the low voltage power supply PCB unit. 2 Main PCB failure Replace the main PCB ASSY.

• Code: 7000
• Display: Jam Inside 1 Open the Scanner Cover and Top Cover, pull out the Drum Unit and remove the jammed paper, then press Start.
• Description: The eject sensor does not detect paper pass after the paper printing position sensor detected the paper pass.
• Remedy: • Remove the jammed paper. • Check that the paper is set in the paper tray correctly. • Check that there is not too much paper set in the paper tray. • Flip over the paper in the paper tray or rotate the paper 180 degrees. • Check that the thickness of the paper is within the standard. • Flip through the paper and reset it in the paper tray.
  1 Foreign object inside the machine Remove the foreign object. 2 Eject actuator coming off or caught in sections of the machine Reattach the eject actuator. 3 Connection failure of the paper feed/paper printing position sensor PCB harness Reconnect the paper feed/paper printing position sensor PCB harness. 4 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 5 Paper feed/paper printing position sensor PCB failure Replace the paper feed/paper printing position sensor PCB ASSY. 6 Eject sensor failure Replace the eject sensor PCB ASSY. 7 Main PCB failure Replace the main PCB ASSY.