Canon LBP3470

• Code: E733 0004
• Description: Engine communication error
• Remedy: 1) Turn OFF and then ON the power. 2) Replace the Engine Controller PCB.

• Code: E733 0005
• Description: Engine communication error
• Remedy: 1) Turn OFF and then ON the power. 2) Replace the Engine Controller PCB.

• Code: E733 0006
• Description: Engine communication error
• Remedy: 1) Turn OFF and then ON the power. 2) Replace the Engine Controller PCB.

• Code: E744 1000
• Description: Mismatch of the series or model of the firmware sent at the time of downloading.
• Remedy: 1) Check the supported series or model of the firmware, and burn the correct series or model of firmware.

• Code: E760 0000
• Description: CPU exception occurred
• Remedy: 1) Turn on the power again.

• Code: E805 0000
• Description: Fan malfunction
• Remedy: 1) Reconnect the connector on the Relay PCB. 2) Replace the Main Fan.