Latest Chips: These 148X toner can be used directly without additional operation (equipped with the latest chips)
Compatible Printers: Compatible for HP Pro 4001dw 4001dn 4001n MFP 4101dw 4101fdw 4101fdn Printer
Warning: Not compatible with printers with an "e", for example: Pro 4001dne 4001dwe 4001ne MFP 4101dwe 4101fdne 4101fdwe
High Page Yield: Up to 9,500 Pages for W1480X 148X toner cartridge (Letter A4, at 5% coverage)
Package Content: 2 Packs 148X Toner Cartridges with latest chips, A "Printer Helper" (Non-OEM toner cartridge often cannot work due to automatic printer firmware upgrades. This "Printer Helper" is designed to solve this problem. In case there is a firmware upgrade, then take it out to upgrade the chip on the toner cartridge)