Given the above, you should only consider the following sources as a last resort and with extreme caution.
The Service Tool is a Windows-based application designed to communicate directly with your printer's firmware. It is primarily used to reset the waste ink counter when it reaches its limit, effectively "reviving" a printer that has locked itself for safety reasons. Canon Service Tool V.3900 Download
What is Canon Service Tool V.3900? is a special software program for Canon printers. It helps fix common printer errors at home. Given the above, you should only consider the
: The function you selected is not supported by your specific printer model. What is Canon Service Tool V
While still holding Stop/Reset, press and hold the Power button. The power LED will light up.
Turn off the printer completely. Leave the power cable plugged into the wall outlet.