1.QE-532cartridgeresetter canmake the chip's ink level to be full.It is suitable for PGI220/CLI221 cartridge2.QE-532cartridge resetter is suitable for both original chip and other compatible chip. 3.It also can rewrite the original chip's version. If you want to change the PGI520/CLI521 chip to PGI220/CLI221 original chip,you just need reset the PGI520/CLI521 chip by our QE-532 chip resetter,Then it's done.