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HP 21 Black Original Ink Cartridge, C9351AN#140
Why buy original HP ink?
Get up to twice as many pages vs. with refills¹Ensure that your printing is right the first time and every time.¹Based on a SpencerLab 2018 study commissioned by HP for the on-average performance of 12 brands of remanufactured cartridges, refilled cartridges from leading refill service providers, and refill kits compared to Original HP ink cartridges (61XL, 62XL, 63XL, 564XL, 950XL, 951XL, 970XL & 971XL) sold in North America. See http://www.spencerlab.com/reports/HPInkReliability-NA-2018.pdf.
Laser-quality black text
Pigmented black inks provide crisp sharp text for your letters and reports.Keep your documents for a long-term reference. Text remains clear longer than many plain papers.HP quality and reliability ensures your printing tasks are easy and results are genuine HP quality.
Reliable printed results
HP inkjet printing supplies and printers are designed to produce consistent results every time.Results you can count on across a broad range of plain papers and speciality media.HP quality and reliability ensures your printing tasks are easy and results are genuine HP quality.
Easy to use
Supplies are easy to select, replace, and install.Save time and money with on-screen ink-level indicator in your printer software.HP quality and reliability ensures your printing tasks are easy and results are genuine HP quality.
Color(s) of print cartridges
Page yield (black and white)
Page yield footnote
Tested in HP PSC 1410 All-in-One. Approximate average based on ISO/IEC 24711 or HP testing methodology and continuous printing. Actual yield varies considerably based on content of printed pages and other factors. For details see http://www.hp.com/go/learnaboutsupplies.
Compatible ink types
Operating temperature range
59 to 95°F
Storage temperature range
5 to 95°F
Operating humidity range
5 to 95% RH
5 to 95% RH
Recycled content in cartridge
Package dimensions (W x D x H)
4.49 x 1.43 x 4.05 in
HP’s ink cartridges and printheads are warranted to be free from defects in materials and workmanship during the period of the warranty.
What's in the box
Return and exchange information
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HP Rewards qualifying and eligible products/purchases are defined as those from the following categories: Printers, Business PCs (Elite, Pro and Workstation brands), select Business Accessories and select Ink, Toner & Paper.My HP Rewards
“Best All In One Printer” and “the easiest printer you’ve ever had to set up” from Wirecutter. ©2020 The Wirecutter, Inc.. All rights reserved. Used under license. https://www.nytimes.com/wirecutter/reviews/best-all-in-one-printer/
*Based on a SpencerLab 2018 study commissioned by HP for the on-average performance of 12 brands of remanufactured cartridges, refilled cartridges from leading refill service providers, and refill kits compared to Original HP ink cartridges (61XL, 62XL, 63XL, 564XL, 950XL, 951XL, 970XL & 971XL) sold in North America. See http://www.spencerlab.com/reports/HPInkReliability-NA-2018.pdf
** You must be enrolled in HP Rewards and sign up for Instant Ink before 6/18/2022 to qualify for 300 HP Rewards points. Please allow 30 days from your enrollment date for points to show in your account. Offer excludes Education store, other private stores, and any established Corporate Employee Purchase Plan account.
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