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Canon Color imageCLASS MF729Cdw

Error Codes List page 16

  • Code: E766 xxxx
  • Description: Firmware error
  • Causes: An error in connection occurred due to controller software.
  • Remedy: Due to firmware error, the possibility of solving the error by replacing the Main Controller PCB is low. Check the installed engine again.
  • Code: E805 0005
  • Description: Duplex Cooling Fan error
  • Causes: The Duplex Cooling Fan failed to rotate at the specified revolution.
  • Remedy: 1. Check the connector between the Duplex Cooling Fan and the DC Controller PCB. 2. Replace the Duplex Cooling Fan. 3. Replace the DC Controller PCB.
  • Code: E806 0000
  • Description: Fixing Power Supply Cooling Fan error
  • Causes: The Fixing Power Supply Cooling Fan failed to rotate at the specified revolution.
  • Remedy: 1. Check the connector between the Fixing Power Supply Cooling Fan and the DC Controller PCB. 2. Replace the Fixing Power Supply Cooling Fan. 3. Replace the DC Controller PCB.
  • Code: E808 0000
  • Description: Low-voltage power supply failure detection
  • Causes: Printer detected low-voltage power supply failure.
  • Remedy: 1. Check the connector between the Power Supply Unit and the DC Controller PCB. 2. Replace the Power Supply Unit. 3. Replace the DC Controller PCB.
  • Code: E840 0000
  • Description: Error in pressure release mechanism of the Fixing Assembly
  • Causes: Although the Fixing Assembly started moving to the home position, it failed to be at the position.
  • Remedy: 1. Replace the Fixing Drive Assembly. 2. Replace the Fixing Pressure Release Cam.
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