Canon Service Tool V.4718

: The tool may print a small test page or show a "finished" dialog.

This is achieved through a specific physical button sequence (often involving the Stop/Reset and Power buttons). The sequence puts the printer into a state where the main firmware is bypassed, and the USB port is open to raw binary commands from the PC. canon service tool v.4718

G3000, G3100, G3102, G3200, G3400, G3500, G3600, G3800, G3900 Pixma Pro-500, Pixma Pro-1000 : The tool may print a small test