Canon will reset the counter for a flat fee (typically $40–$80 including pad replacement). For an older printer worth $100, this is a tough sell, but for a Pro series printer, it may be worth it.
Release the Stop button (keep Power held), then press the button 5 times (for most models) or 2 times (for older series like iP3600). Release the Power button. download canon service tool v4905
v5000 adds support for newer PIXMA TS and TR series. v4905 lacks those drivers but is more compact and faster on older printers. Canon will reset the counter for a flat
The v4905 version is a lightweight, offline Windows utility that interacts directly with your printer's firmware. It is primarily used to: this is a tough sell