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Canon Color imageCLASS MF746Cx

Error Codes List page 30

  • Code: E806-0000
  • Description: Power Supply Fan error
  • Causes: The Power Supply Fan (power supply) failed to rotate at the specified revolution.
  • Remedy: 1. Check the connection of the Power Supply Fan. 2. Replace the Power Supply Fan (FM1).
  • Code: E808-0000
  • Description: Low voltage power supply failure
  • Causes: When the printer has detected a low voltage power supply failure.
  • Remedy: 1. Check the harness/connector between the Engine Controller PCB (UN1) and the Low Voltage Power Supply PCB (UN2). 2. Replace the Low Voltage Power Supply PCB (UN2). 3. Replace the Engine Controller PCB (UN1).
  • Code: E840-0000
  • Description: Pressure release mechanism error
  • Causes: An error in pressure release mechanism of the Fixing Assembly was detected.
  • Remedy: 1. Check the harness/connector between the Fixing Pressure Release Switch (SW5) and the Engine Controller PCB (UN1). 2. Check the harness/connector between the Fixing Motor (M4) and the Driver PCB (UN11). 3. Check the harness/connector between the Driver PCB (UN11) and the Engine Controller PCB (UN1). 4. Replace the Fixing Pressure Release Switch (SW5). 5. Replace the Fixing Motor (M4). 6. Replace the Fixing Assembly. 7. Replace the Driver PCB (UN11). 8. Replace the Engine Controller PCB (UN1).
Error Code
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