Canon PG 40 / 50 / CL41 / CL51
After installing the cartridges go to the “Maintenance” section of the printer properties and carry out Deep Cleaning one time.
You may see the pop-up, “The following ink may have run out of Black/Color.
The function for detecting the remaining ink level will be disabled since the ink
level cannot be detected…”
You have to press the Start Button on the printer
panel (Black or color whichever is blinking on the ink indicator lights).