Canon does not distribute Service Tool v5103 to the public. It is leaked software. Consequently, it is frequently bundled with malware in "free download" repositories. A legitimate copy is usually a small .exe file; if the download is a massive ZIP file with installers, it is likely compromised.
If you see this error, it means the tool does not support your specific printer model or the printer is not correctly in Service Mode. canon service tool v5103
A message saying "A function was finished" confirms the reset. ⚠️ Important Considerations Canon does not distribute Service Tool v5103 to the public
Clears the internal "ink absorber full" message, allowing the printer to resume printing without a physical hardware change. canon service tool v5103