hp 21 black ink cartridge in retail packaging c9351an 140
give your black-and-white documents a polished professional look . the hp 21 cartridge is perfect for low-volume users who want laser-quality text and graphics . features include print professional-looking documents with laser-quality black text . reliable print crisp text every time with your hp printer . simple to install and easy to use . initial hp printer compatibility hp deskjet 3910 hp deskjet 3930 hp deskjet 3940 hp printer scanner copier 1410 what s in the box one hp 21 black inkjet print cartridge