Product Description

Hewlett Packard [HP] No. 21 Inkjet Cartridge Black Ref C9351AE
• The HP 21 Black Inkjet Print Cartridge combines patented ink formulations with advanced inkjet print cartridge technology to ensure crisp, laser-quality black text every time you print• Pigmented black inks provide crisp sharp text for your letters and reports-documents you can be proud of from your HP printer• Keep your documents for a long-term reference• Printed text from this HP ink remains dark and sharp longer• Results you can count on across a broad range of plain papers and specialty media• Print greeting cards, homework assignments, letters, e-mail, and reports with confidence

Product Details

• Amazon Sales Rank: #2490 in Consumer Electronics
• Brand: Hewlett Packard
• Model: 21

Features

• Hewlett Packard [HP] No. 21 Inkjet Cartridge Black Ref C9351AE
  • The HP 21 Black Inkjet Print Cartridge combines patented ink formulations with advanced inkjet print cartridge technology to ensure crisp, laser-quality black text every time you pri

Customer Reviews

TURNED A BAD PRINTER INTO A GOOD ONE!!!!!!!!!!!!

I brought my Hp Desk Jet F380 printer/scanner for only £28.00 from Argos but It was costing me £35.00 per week on Hp originals 2 blacks and 1 color as Hp only put 5mls of ink in their cartridges. The printer was just about to end up in the dustbin when I read a review tell me to go for high yield premium compatibles 24mls cartridges. Well I though what the hell and ordered a pair.
They are GREAT the black is a much deep shade of black than what I was getting out of the HP original, But the best point is they last sooooooooooo much longer the black has lasted me two weeks and the color is only showing as half empty.
Go and buy this printer as its very very good but don't get conned by the HP originals.

Expensive but reliable
Based on the review by Mr Ince I purchased a cartridge from Advantage. Having always been wary of 'compatible' cartridges following lots of disappointment, I awaited this item with lots of confidence as an Amazon customer had recommended it. I was very disappointed. The ink didn't print out correctly at all. I tried pressing it against kitchen towel as recommended(?! - never had to do this with an original cartridge) but still no joy. After 10 attempts at printing, it went in the bin and I installed a new HP original. I will admit they are exceptionally overpriced - but at least they do what they say.