1. Epson A920 auto reset chip, works with Epson PM-A920/A820/G850/G4500/A840/G860/EP-301/EP-801A/EP-901F/PM-A840S etc.

6 colors 6 cartridges: ICBK50, ICC50, ICM50, ICY50, ICLC50, ICLM50

2. Epson A620 auto reset chip, works with Epson PX-A720/PM-D870/A620/PX-101/PX-501A/PX-201

4 colors 4 cartridges: ICBK46, ICC46, ICM46, ICY46