Average Cartridge Yield 3000 standard pages. Declared yield value in accordance with ISO/IEC 19752.Compatible Printers: Lexmark E 321, Lexmark Optra E 323 N, Lexmark Optra E 323, Lexmark E 323 N, Lexmark E 323, Sindoh LP 1900 Series, Lexmark E 321 N, Lexmark Optra E 321 N, Unisys UDS 123, Sindoh LP 1800, Sindoh LP 1900 N, Sindoh LP 1900, Lexmark Optra E 321
