The Service Tool will only work if your printer is in . If you try to run it while the printer is in normal "User Mode," you will receive an error (usually Error 006). A recommended source to download the V4720 Service Tool.
Useful after installing certain types of CISS (Continuous Ink Supply Systems). How to Use Service Tool V4720 service tool v4720 download link
Google Drive/Docs Mirror : Often contains community-shared copies. Key Features & Compatibility Canon Service Tool V4720 - ORPYS The Service Tool will only work if your printer is in
: The software offers various service functions, including adjustment program, EEPROM reset, and more. Choose the function you need based on your printer's issue. including adjustment program
Because these are third-party downloads, always scan files with antivirus software before running them.