Searching for "Canon Service Tool v4720 download verified" leads to a minefield. Here is the reality:

The function requested is not supported by your firmware configuration.

The software cannot communicate properly with the printer firmware.

Canon does not host this file on its public support pages, so the download must come from third-party sources. However, verifying these links is essential. Based on community research and cross-referencing across forums, the following is considered a functional and verified source.

Clears the 5B00, 5B01, or 1700 "Waste Ink Pad Full" errors.

The tool will not work unless the printer is in service mode. The button combination varies by model, but a common method for many PIXMA printers is:

Resetting the digital counter does not clean the physical ink pads. If you do not clean or replace the sponges, ink will eventually leak out and damage your furniture or the printer's electronics.

This write-up is for informational purposes only. Canon and its affiliates do not endorse or support third-party distribution of this software.

: For official drivers and standard utilities (not service tools), always go directly to the Canon Support Page. How to Use the Tool

This does not work for all printers. The v4720 tool is required for many newer models.

A pop-up message stating "A function was finished" will appear. Click . Step 5: Reboot Hardware