Canon Service Tool V3800 [best] Jun 2026
Connect your printer to your computer using a standard (Wi-Fi will not work in Service Mode). Download and extract the Canon Service Tool v3800 software. Right-click the .exe file and select Run as Administrator .
Releasing the Power button. If successful, the power light will stay solid green, and the PC should detect a new device (often "CanonDevice"). canon service tool v3800