Canon / maintenance or service warning
Canon printer maintenance or service warning
Some errors need cleaning, maintenance box, drum, or service checks. On Canon printers, the exact display message decides whether this is hardware, supply, queue, or connection trouble.
Canon printer maintenance or service warningcanon printer errormaintenance or service warning
Check in this order
- Check the printer display for an exact code.
- Clear physical warnings before changing software.
- Cancel stuck jobs from the queue.
- Restart once and send one test page.
Detailed code lookup
If the same warning returns, switch from symptom checks to the exact code on the printer display or in the Windows queue.
Open Canon codes