To use the software, you must first put your printer into : Power Off: Turn the printer off but keep it plugged in.
Before using the software resetter, open the printer casing, locate the waste ink pads, remove them, wash them thoroughly in warm water until the water runs clear, dry them completely (using a hairdryer or sunlight), and reinstall them. Alternatively, install an external waste ink tank kit. free download canon resetter service tool st 5510 best