HP 21 (C9351AN) Black Original Ink Cartridge is rated 4.3 out of 5 by 51.
Rated 5 out of 5 by Jerico55 from PrintersI'm not out of Black ink yet. But soon, I have it ready. 21's from Hp are the best. I highly recommend the 21 and the 22 color.
Date published: 2018-11-04
Rated 4 out of 5 by Msvb53 from Black inkI like that i can buy ink and have it delivered to my door a day later. I have seen that the cartridges do not have a full container of ink. And sometimes the color is more dark gray than black.
Date published: 2018-08-08
Rated 5 out of 5 by MisterE from Very blackWorks great. I put the cartridge in my printer, the printer makes it squirt on the paper, and presto! Words. Very black. Nice contrast with white paper. Top notch.
Date published: 2018-01-08
Rated 5 out of 5 by ELCIDCAMPEADOR from Works perfectly after installation!Works immediately. No wait or errors. Perfect performance from the start.
Date published: 2017-11-05
Rated 5 out of 5 by AllenEH from Superb Quality!In the past - I've tried to save money by buying a re-filled cartridge. That was a BIG mistake! The re-filled one didn't print well at all! So - I had to throw it away and lost money rather than saving money!Whenever I've bought a new genuine HP cartridge it performed flawlessly! They produce nice sharp, dark, results and last for quite a lot of copies.I've learned my lesson (the hard way) and won't buy re-fills again! I now only use the great genuine HP cartridges and am happy that I'm doing so!
Date published: 2017-10-05
Rated 5 out of 5 by Bill1943 from Tried all the rest, now I stick with the best- HPEverything about HP ink is outstanding--
Date published: 2017-07-20
Rated 5 out of 5 by amyo5 from Excellent product, great price, great experience!Got the ink cartridge for less than at the "bargain" ink stores! Thanks, HP!
Date published: 2017-06-12
Rated 3 out of 5 by Needmoreink from Limited product availability.Large capacity no longer available. What you get is overpriced.