Based on reverse‑engineered reports, V3400 version 3.4.0.0 works (or reportedly works) with:
Compatibility is never guaranteed with unofficial downloads. Canon Service Tool V3400 -v 3.4 0.0 Download- Extra Quality
The utility can reset ink counters, which is particularly useful for users who utilize third-party ink tanks or Continuous Ink Supply Systems (CISS), as these often do not report levels correctly to the printer. Based on reverse‑engineered reports, V3400 version 3
Use this tool only on printers you own or are authorized to service. Improper use can render a printer unusable and may void warranties. Some actions may bypass manufacturer safeguards; follow service manuals and local regulations. Compatibility is never guaranteed with unofficial downloads
Cybersecurity researchers have repeatedly found that “Canon Service Tool V3400” executables from non‑official sources contain: