If you decide to proceed with the tool, here is how to fix the most frequent failures:
The most common reason is to reset the . When a Canon printer reaches a predetermined number of purge cycles, it locks operation and displays a “waste ink pad full” or “service required” error (e.g., 5B00, 5B01). In many regions, Canon considers the pads a service‑only replacement item, but some users reset the counter to continue printing without physically changing the pads.
: Hard to find a clean, virus-free download as it's not officially public. Recommendation