HP C4837AE No 11. magenta Ink Cartridge for Business Inkjet 10PS/20PS/50PS/ 2200/2250/2600/CP1700 series/1100D/ 2300. Page life - 1750. The HP No. 11 Magenta Inkjet Print Cartridge uses dye-based ink for economical, high volume printing with the quality you've come to expect from your HP printer. Genuine HP technology means it works even better with HP specialty papers and print heads. This cartridge is packed with enough cyan ink to print up to 2,000 pages.