Canon Service Tool V3800 !new! -
It bricks itself.
The Ultimate Guide to Canon Service Tool v3800: Revive Your Printer canon service tool v3800
The printer will no longer print. It will no longer scan. It refuses to do anything until a certified Canon technician opens the chassis, replaces the pad, and uses specialized software to reset the internal counter. It bricks itself
Canon officially recommends contacting a service center to replace ink absorbers. Resetting the counter without physically cleaning or replacing the pads can eventually lead to ink leaking out of the bottom of your printer. replaces the pad

