Brother DCP7040 Printer Repair

Code: 50

  • Description:Replacement time of the drum unit
  • Causes:• Replace the drum unit with a new one.
  • Remedy:1 Main PCB failure Replace the main PCB ASSY.

Code: 56

  • Description:Fuser cover opened
  • Causes:• Check if the Fuser cover is closed correctly. Harness connection failure of back cover switch ASSY Eject actuator failure Eject sensor PCB ASSY failure Main PCB failure
  • Remedy:1 Harness connection failure of back cover switch ASSY Check the harness connection of the back cover switch ASSY and reconnect it. 2 Eject actuator failure Re-assemble the eject actuator 3 Eject sensor PCB ASSY failure Replace the eject sensor PCB ASSY. 4 Main PCB failure Replace the main PCB ASSY.

Code: 58

  • Description:Fuser unit failure (Stand ready in the given time)
  • Causes:
  • Remedy:1 Harness connection failure between fuser unit and eject sensor PCB Check the harness connection between the fuser unit and eject sensor PCB, and reconnect it. 2 Fuser unit failure Replace the fuser unit. 3 LVPS PCB failure Replace the LVPS PCB unit. 4 Eject sensor PCB ASSY failure Replace the eject sensor PCB ASSY. 5 Main PCB failure Replace the main PCB ASSY.

Code: 59

  • Description:Fuser unit failure
  • Causes:
  • Remedy:1 Harness connection failure between fuser unit and eject sensor PCB Check the harness connection between the fuser unit and eject sensor PCB, and reconnect it. 2 Fuser unit failure Replace the fuser unit. 3 LVPS PCB failure Replace the LVPS PCB unit. 4 Eject sensor PCB ASSY failure Replace the eject sensor PCB ASSY. 5 Main PCB failure Replace the main PCB ASSY.

Code: 5A

  • Description:HVPS PCB ASSY failure
  • Causes:HVPS PCB failure (Developing bias voltage failure) HVPS PCB ASSY harness connection failure HVPS PCB failure Main PCB failure
  • Remedy:1 HVPS PCB ASSY harness connection failure Check the harness connection between the HVPS PCB and main PCB. Then, reconnect them. 2 HVPS PCB failure Replace the HVPS PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

Code: 5B

  • Description:New toner detecting lever malfunction
  • Causes:New toner detection switch harness connection failure New toner detection switch failure Main PCB failure
  • Remedy:1 New toner detection switch harness connection failure Check the harness connection of the new toner detection switch. Then, reconnect it. 2 New toner detection switch failure Replace the new toner harness ASSY. 3 Main PCB failure Replace the main PCB ASSY.

Code: 63

  • Description:Toner cartridge is at the end of life.
  • Causes:• Gently shake the toner cartridge from side to side and install it again. • Replace the toner cartridge.
    Harness connection failure of new toner sensor harness ASSY. Harness connection failure of toner sensor PCB unit ASSY. New toner sensor harness ASSY failure (Toner empty) Toner sensor PCB unit ASSY failure. Main PCB failure
  • Remedy:1 Harness connection failure of new toner sensor harness ASSY. Check the sensor performance following the procedure described in “Maintenance mode 32”. If any problem occurs, check the harness connection of the new toner sensor harness ASSY, then reconnect it. 2 Harness connection failure of toner sensor PCB unit ASSY. Check the sensor performance following the procedure described in “Maintenance mode 32”. If any problem occurs, check the harness connection of the toner sensor PCB unit ASSY, then reconnect it. 3 New toner sensor harness ASSY failure (Toner empty) Replace the new toner sensor harness ASSY. 4 Toner sensor PCB unit ASSY failure. Replace the toner sensor PCB unit ASSY. 5 Main PCB failure Replace the main PCB ASSY.

Code: 67

  • Description:Toner of the toner cartridge is low
  • Causes:• Prepare a new toner cartridge. If the toner is empty, Replace it.
  • Remedy:

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