Step-by-step help for Canon imageCLASS MF455dw Error Codes.
Error codes and messages on the Canon imageCLASS MF455dw are only useful when matched to the exact indication. Record the full code/message before powering off, replacing supplies or resetting network settings.
Useful Canon imageCLASS MF455dw error/message paths
| Code or message | What it means | What to do |
|---|---|---|
| Displayed Canon message/code | Device has identified a specific condition | Record the exact message/code and use the MF455dw/MF450-family User's Guide entry. |
| Paper/jam message | Paper path is blocked or feeding failed | Follow the on-screen jam-location guidance and remove paper without tearing it. |
| Toner/supply message | Toner status or cartridge condition needs attention | Check the exact supply message before reseating or replacing toner. |
| Network/communication message | Active interface or network communication failed | Confirm whether USB, Ethernet or Wi-Fi is active, then troubleshoot that interface only. |
Use the exact message, not a similar model’s code
Canon may reuse code formats across products while the supported action can vary. Use this model or an explicitly applicable manufacturer family as the source.
After clearing the condition
Retest the operation that triggered the error. If the same exact message returns after the documented action, move to the manufacturer’s next escalation rather than repeatedly resetting the printer.
Official manufacturer support
Need manufacturer documentation or additional support? Use the official Canon resource below.
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Last verified: 30 September 2026