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Brother MFC9420CN

Error Codes List page 1

  • Code: 20
  • Description: Laser power error
  • Causes: Connector LCN does not properly connected Laser unit defective Engine controller board defective
  • Remedy: Connector LCN does not properly connected Connect the connector properly. Laser unit defective Replace the laser unit Engine controller board defective Replace the engine controller board
  • Code: 21
  • Description: Beam detector error.
  • Causes: Connector LCN does not properly connected Laser unit defective Engine controller board defective
  • Remedy: Connector LCN does not properly connected Connect the connector properly. Laser unit defective Replace the laser unit Engine controller board defective Replace the engine controller board
  • Code: 22
  • Description: NVRAM error
  • Causes: Main PCB defective
  • Remedy: Replace the main PCB
  • Code: 23
  • Description: Engine controller hardware error
  • Causes: Control error Engine controller board defective
  • Remedy: Control error Try the Power Switch Off/On Engine controller board defective Replace the engine controller board
  • Code: 24
  • Description: Process timing clock error.
  • Causes: Main motor defective Engine controller board defective
  • Remedy: Main motor defective Replace the main motor Engine controller board defective Replace the Engine controller board
  • Code: 25
  • Description: Developing motor error
  • Causes: Toner cartridge gear defective Developer gear unit defective Developer motor defective Engine controller board defective
  • Remedy: Toner cartridge gear defective Replace the toner cartridge. Developer gear unit defective Replace developer gear unit Developer motor defective Replace the developer motor Engine controller board defective Replace the engine controller board.
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