NOT compatible with IM200-series, IS200-series or IM/IS280 machines. Set of 2 ink cartridges Fluorescent Red Ink USPS Approved Ink Compatible with Quadient iX-1 mailing machines sure.jet # A0146668 mailing machines Yields up to 2,000 imprints per cartridge, or 12 months, depending on use This set of 2 non-OEM ink cartridges is compatible with Quadient iX-1 sure.jet # A0146668 red fluorescent ink cartridge. These compatible ink cartridge is for use in Quadient iX-1 mailing machines. This cartridge is NOT compatible with IM200, IS200, IM280 or IS280-series machines and will not work with them.