Because v4720 is a proprietary tool, it is not available on public open-source repositories like GitHub (unless leaked). There are three legitimate channels to obtain the download:
Finding a clean, working link for this tool can be tricky because Canon does not host it on their public consumer support pages. It is typically distributed through technician forums or third-party archives. service tool v4720 download link
: There is a secondary hardware fault in the printer beyond just the waste ink counter. A recommended source to download the V4720 Service Tool. Because v4720 is a proprietary tool, it is