It is not a hacking solution. It works exactly same way as the reset circuit in a new OEM unit. So, it works properly and safely without error. Note : It is NOT a toner reset solution. If you require toner reset, buy toner reset chips. This will only reset the drum counter not the toner. Takes only 1-2 min. Video guide available on this listing. Watch it before purchg. It also comes with a full instruction manual. Home & Office friendly. No disassembly required, no toner leaking and all of our products are RoHS compliant which means it is Home and Office friendly. Why change if they are not worn out? Save your time, money and our planet by reusing the parts with our simple reset solutions. It is Quick, Easy and Safe.