Turn off the printer. Press and hold the button (red triangle), then press and hold the Power button.
Using V4720 on a very old printer (like the MP145) or a brand-new Pro-series printer may cause a "Communication Error." canon service tool v4720 download verified
Version 4720 is designed for older and "G" series models like the G1400, G2400, and G3400 . Critical Review & Warnings Turn off the printer
Since this isn't an official public download from Canon Support , ensure you source it from a reputable technician forum like PrinterKnowledge and scan all files for malware before opening. canon service tool v4720 download verified