If you attempt to use a modified or "fake" free service tool, it can trigger a permanent lock on the printer's mainboard (often indicated by Error Code 006 ). Once this happens, the printer cannot be reset by software at all and the physical chip or board must be replaced. 🛠️ Recommended Safe Alternatives
Ensure the "Absorber" is set to "Main" and the "Counter Value" is at 0%. Free Download Canon Resetter Service Tool St 5510