• Code: E-0020
• Description: Counter Error
  The Counter Connection Detection Signal (COUNT_OPN) continues to be “L” for 1 second or longer after turning on.
• Remedy: Service Mode 1 Has the setting of Adjustment Mode Item No.753 set to “1” ? Yes Set it to “0”.

• Code: E-0031
• Description: Image Corona Output Error
  The Image Corona Output Detection Signal (IM_LD) continues to be “L” for 1 second or longer when the Image Corona is ON.
• Remedy: Wire 1 Are wires among Image Corona, HV Power Supply PCB and PW11720 PCB connected properly? No Connect them properly. 2 (For Image Corona / Cleaning Roller only) Is the spring on the left bottom of the Process Unit OK? No Correct it properly. Is the Image Corona dirty? Yes Clean each Corona Wire, Grid Plate and housing. Image Corona 3 Is the Corona Wire broken? Yes Replace the Corona Wire. Does the bias terminal plate touch to Cleaning Roller shaft properly? No Remove and reapply conductive grease to Cleaning Roller shaft. Relocate the bias terminal plates properly. Cleaning Roller 4 Is grease applied enough? No Remove and reapply conductive grease to Cleaning Roller shaft. Is the Transfer Corona dirty? Yes Clean each Corona Wire and housing. Transfer Corona 5 Is the Corona Wire broken? Yes Replace the Corona Wire. Is the Separation Corona dirty? Yes Clean each Corona Wire and housing. Separation Corona 6 Is the Corona Wire broken? Yes Replace the Corona Wire. HV Power Supply 7 Can you fix the problem if you replace the HV Power Supply? Yes OK

• Code: E-0032
• Description: Separation Corona Output Error
  The Separation Corona Output Detection Signal (AC_LD) continues to be “L” for 1 second or longer when the Separation Corona is ON.
• Remedy: Wire 1 Are wires among Image Corona, HV Power Supply PCB and PW11720 PCB connected properly? No Connect them properly. 2 (For Image Corona / Cleaning Roller only) Is the spring on the left bottom of the Process Unit OK? No Correct it properly. Is the Image Corona dirty? Yes Clean each Corona Wire, Grid Plate and housing. Image Corona 3 Is the Corona Wire broken? Yes Replace the Corona Wire. Does the bias terminal plate touch to Cleaning Roller shaft properly? No Remove and reapply conductive grease to Cleaning Roller shaft. Relocate the bias terminal plates properly. Cleaning Roller 4 Is grease applied enough? No Remove and reapply conductive grease to Cleaning Roller shaft. Is the Transfer Corona dirty? Yes Clean each Corona Wire and housing. Transfer Corona 5 Is the Corona Wire broken? Yes Replace the Corona Wire. Is the Separation Corona dirty? Yes Clean each Corona Wire and housing. Separation Corona 6 Is the Corona Wire broken? Yes Replace the Corona Wire. HV Power Supply 7 Can you fix the problem if you replace the HV Power Supply? Yes OK

• Code: E-0033
• Description: Transfer Corona Output Error
  The Transfer Corona Output Detection Signal (TR_LD) continues to be “L” for 1 second or longer when the Transfer Corona is ON.
• Remedy: Wire 1 Are wires among Image Corona, HV Power Supply PCB and PW11720 PCB connected properly? No Connect them properly. 2 (For Image Corona / Cleaning Roller only) Is the spring on the left bottom of the Process Unit OK? No Correct it properly. Is the Image Corona dirty? Yes Clean each Corona Wire, Grid Plate and housing. Image Corona 3 Is the Corona Wire broken? Yes Replace the Corona Wire. Does the bias terminal plate touch to Cleaning Roller shaft properly? No Remove and reapply conductive grease to Cleaning Roller shaft. Relocate the bias terminal plates properly. Cleaning Roller 4 Is grease applied enough? No Remove and reapply conductive grease to Cleaning Roller shaft. Is the Transfer Corona dirty? Yes Clean each Corona Wire and housing. Transfer Corona 5 Is the Corona Wire broken? Yes Replace the Corona Wire. Is the Separation Corona dirty? Yes Clean each Corona Wire and housing. Separation Corona 6 Is the Corona Wire broken? Yes Replace the Corona Wire. HV Power Supply 7 Can you fix the problem if you replace the HV Power Supply? Yes OK

• Code: E-0034
• Description: Bias Output Error
  Bias Output Detection Signal (BIAS_LD) continues to be “L” for 1 second or longer when a specified bias is supplied to the corresponding Developer Unit components.
• Remedy: Wires 1 Are wires among Developer Unit, HV Power Supply PCB and PW11720 PCB connected properly? No Connect them properly. Is the toner spill out from the Developer Unit? (Or is there any similar problem?) Yes Clean each Corona Wire, Grid Plate and housing. Developer Unit 2 Is the high voltage of Regulation Roller leaking? (The resistance between the central part of Regulation Roller and the Ground is 5 mega ohm or smaller if leaking.) Yes Replace the Regulation Roller. HV Power Supply 3 Can you fix the problem if you replace the HV Power Supply? Yes OK

• Code: E-0040
• Description: Cutter Error
  1. The Cutter Home Sensor Signal (MSCUT_L or MSCUT_R) does not change to “H” within 100 millisecond since the Cutter has started the operation.
  2. The Cutter Home Sensor Signal (MSCUT_L or MSCUT_R) does not change to “L” within 1 second since the Cutter has started the operation.
• Remedy: Wires 1 Is the wire between Cutter Unit and PW11720 PCB connected properly? No Connect it properly. Cutter Home Position Sensors (MS8 & MS9) 2 Check the status of the following signals in the Signal Status Mode of the Service Mode. Signal Code : 094 (Cutter Home Position Right) 095 (Cutter Home Position Left) Is the status “L” when the Cutter is at each home position? No Replace the Cutter Unit. Cutter Motor (M4) 3 Check the operation of Cutter in the Operation Check Mode of the Service Mode. Device Code : 27 (Cutter Motor 1) 28 (Cutter Motor 2) Does the Cutter operate? No Replace the Cutter Unit.

• Code: E-0050
• Description: FPGA Error
  Initialization of FPGA is failed after turning on.
• Remedy: PW11720 PCB 1 Can you fix the problem if you replace the PW11720 PCB? Yes OK

• Code: E-0070
• Description: Developer Error
  1. The Connector J-253 is not connected.
  2. The Switch (MS4) is “open” condition, which detects open/close of Engine Unit or Toner Hatch.
• Remedy: Wires 1 Is the wire between Developer Unit and PW11720 PCB connected properly? No Connect it properly.