Produce high definition documents and black-and-white graphics with clear, solid lines with the Lexmark 23 Black Print Cartridge. This high-resolution cartridge makes use of exclusive Lexmark pigmented black ink to deliver optimum quality each and every time. It is compatible with printer models X3530, X3550, X4530, X4550, X5370, Z1400, Z1410 and Z1420. This Lexmark cartridge not only provides superior printouts but delivers them at a faster speed. It has multiple print head nozzles and features a considerable swath size both of which enhance the printer's speed. The nozzles in this inkjet print cartridge are formatted in pairs so you can always rely on a consistent quality in the printout and needn't worry about clogged nozzles. This product is suitable for printing both text and graphic as well as larger solid monochrome images.These cartridges are always easy to remove and replace. Keep an extra cartridge on hand and never have to worry about running out of quality ink.