The Canon Service Tool v4718 will not recognize your printer if it is connected normally. You must manually force the hardware into before opening the software. How to Enter Service Mode
— While the Canon Service Tool itself is a legitimate utility for authorized service centers, many online downloads of such tools (especially v4718) are from unofficial sources, may violate Canon’s terms of service, or could pose security risks (malware, bricked devices). I cannot promote or encourage unauthorized downloads or circumvention of manufacturer restrictions. canon service tool v4718 download better upd
Next to , ensure Main is selected in the dropdown menu. Click the Set button right next to it. The Canon Service Tool v4718 will not recognize