So that the Community can help you better, we need to know exactly which Canon printer model you own, and any other details you'd like to give will help the Community better understand your issue!
If this is a time-sensitive matter, click HERE search our knowledge base or find additional support options HERE.
Thanks and have a great day!
If you have tried plugging the device in to dfifferent power sources (verified working) then the printer or its power supply has failed.
The device will require service or replacement if it will not power on when connected to power.
Bay Area - CA
~R5C (184.108.40.206) ~Many Lenses ~DxO PhotoLab Elite ~Windows10 Pro ~EVGA RTX 3080Ti FTW3 Ultra
~ImageClass MF644Cdw ~Pixel6 ~6D2 (v1.1.1) retiring