Lexmark 18C0034E High Yield Black Ink Cartridge for X5250, Z815, P915, P6250. Page life 475. This genuine Lexmark 34XL High Yield Print Cartridge (18C0034E) is a great choice for crisp, clear text in documents from your Lexmark printer. This cartridge contains a specially formulated black ink that is water-resistant and fade-resistant. The pigment-based ink ensures optimal print quality across all documents. This high capacity cartridge is extra large, containing enough ink for printing up to 500 pages.