HP 21 Black Inkjet Print Cartridge (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
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