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Brother MFC7450

Error Codes List page 8

  • Code: B9
  • Description: Scanning light adjustment error.
  • Causes:
  • Remedy: 1 FB unit failure Replace the FB unit. 2 Main PCB failure Replace the main PCB ASSY.
  • Code: BB
  • Description: White level data error
  • Causes:
  • Remedy: 1 FB unit failure Replace the FB unit. 2 Main PCB failure Replace the main PCB ASSY.
  • Code: E6
  • Description: NVRAM error on main PCB
  • Causes:
  • Remedy: 1 Main PCB failure Replace the main PCB ASSY.
  • Code: EC
  • Description: Fan performance malfunction
  • Causes:
  • Remedy: 1 Harness connection failure of fan motor Check the harness connection of the fan motor, and reconnect it. 2 Fan motor failure Replace the fan motor. 3 Main PCB failure Replace the main PCB ASSY.
  • Code: F8
  • Description: Battery connection failure
  • Causes:
  • Remedy: 1 Battery harness connection failure Reconnect the battery harness. 2 Battery exhausted Replace the battery. 3 Main PCB failure Replace the main PCB ASSY.
  • Code: F9
  • Description: Maintenance mode 74 Non-decision
    (Inputting omission of the customizing code.)
  • Causes:
  • Remedy: 1 Turn the power off, when the Maintenance mode 74 is in progress. Implement the Maintenance mode 74 again.
Error Code
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