Please note that the Canon Service Tool V3900 is not publicly available for free download due to its proprietary nature and the potential risks associated with using such software without proper authorization.
Before the tool can communicate with your printer, the device be in Service Mode: Enter Service Mode : Turn off the printer (keep the power cable connected). Connect the printer to your PC via a USB cable .
The counter should reset to 0%, allowing you to resume printing. Risks and Safety Precautions
It's essential to exercise caution and prioritize your printer's and computer's safety by seeking authorized support channels.
(only because it occasionally works for tech-savvy users on very old models).
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Resetting the counter digitally does not physically clean the ink pads.