Features:

• Black InkJet print cartridge for polished, professional-looking prints
• Crisp text prints every time
• Installs and ready for use in seconds
• Can print black and white photos with or without borders
• Highly reliable for low-volume users

Editor Reviews:

Product Description:
Black Printer Cartridge for HP Inkjet DJ3930&HP Inkjet 3940

Amazon.com:
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

Rating : - about time
I didn't think I was ever going to get this. Next time I'll go to Wal-mart.......