• Code: 6012
• Description: Power supply cooling fan error
• Causes:
• Remedy: 1 At the power ON initialization sequence, does the power supply fan motor (M8) rotate? Check the rotation by its sound or by hand feeling the wind. No Remove connector PJ16A and insert it again. Replace the power supply fan motor. Others Replace PWB-A.

• Code: 6013
• Description: Internal cooling fan error
• Causes:
• Remedy: 1 At the power ON initialization sequence, does the suction fan motor (M7) rotate? Check the rotation by its sound or by hand feeling wind. No Remove connector PJ3A and insert it again. Replace the fan motor. Others Replace PWB-A.

• Code: 6014
• Description: Suction fan error
• Causes: Suction fan motor (M7) rotates by two rotational speed; full speed / half speed. .. When transportation motor (M1) is rotating: Full speed .. When transportation motor (M1) is not operating: Half speed .. Cover open: Stop .. Other time: Half speed When the suction fan lock signal becomes active for 0.5 seconds, the printer detects that suction fan motor is abnormal.
• Remedy: 1 At the power ON initialization sequence, does the fusing fan motor (M10) rotate? Check the rotation by its sound or by hand feeling wind. No Remove connector PJ29A and insert it again. Replace the fan motor. Others Replace PWB-A.

• Code: 6015
• Description: Fuser fan error
• Causes: Fusing fan motor (M10) rotates by two rotational speed; full speed / half speed. .. When fan is booted or warm-up is completed: Full speed for 2 seconds, and then half speed .. When transportation motor (M1) is rotating: Full speed .. When warm-up is completed: Half speed .. Cover open, pause: Stop When the fusing fan lock signal becomes active for 0.5 seconds, the printer detects that fusing fan motor is abnormal.
• Remedy: 1 At the power ON initialization sequence, does the fusing fan motor (M10) rotate? Check the rotation by its sound or by hand feeling wind. No Remove connector PJ29A and insert it again. Replace the fan motor. Others Replace PWB-A.

• Code: 6016
• Description: Polygon motor error
• Causes: 1. When the polygon motor M_Lock signal becomes inactive for 0.4 seconds 8 seconds after the polygon motor (M6) starts driving until the polygon motor (M6) stops, the printer detects that the laser is abnormal. 2. When the LD_SOS signal is not detected for the specified time after the polygon motor is turned on and laser emission is started, the printer detects that the laser is abnormal. 3. When LD_SOS signal is not detected during the printing (during laser emission), the printer detects laser is abnormal.
• Remedy: 1 Check the connector on the mechanical control board of the print head and polygon motor. - Remove the connector PJ27A and insert it again. Remove the connector PJ12A and insert it again. 2 - - Replace the print head unit. Replace the laser safety switch. Others Replace PWB-A.

• Code: 6018
• Description: Laser error
• Causes: 1. When the polygon motor M_Lock signal becomes inactive for 0.4 seconds 8 seconds after the polygon motor (M6) starts driving until the polygon motor (M6) stops, the printer detects that the laser is abnormal. 2. When the LD_SOS signal is not detected for the specified time after the polygon motor is turned on and laser emission is started, the printer detects that the laser is abnormal. 3. When LD_SOS signal is not detected during the printing (during laser emission), the printer detects laser is abnormal.
• Remedy: 1 Check the connector on the mechanical control board of the print head and polygon motor. - Remove the connector PJ27A and insert it again. Remove the connector PJ12A and insert it again. 2 - - Replace the print head unit. Replace the laser safety switch. Others Replace PWB-A.

• Code: 6020
• Description: 2nd transfer roller gap control error
• Causes:
• Remedy:

• Code: 6021
• Description: Transfer Belt Cleaner gap control error
• Causes: 1. The belt cleaner pressure is detected along with the color print and special print pressure / estrangement operation. 2. When the belt cleaner estrangement sensor (PC16) does not change within the specified period after the belt cleaner motor starts rotating, it is detected that the belt cleaner is abnormal.
• Remedy: 1 During printing, does the belt cleaner motor rotate? (Check it by its sound.) Or remove the left cover, take a look from the front bottom and check it by the lever operation. No Remove connector PJ32A, PJ33A and insert it again. Remove connector PJ51, PJ61 and insert it again. 2 Does the sensor light shielding plate of the sensor shut the light off? No Replace the belt cleaner estrangement sensor. Others Replace PWB-A.