HP 21 Black Original Ink Cartridge, C9351AN#140

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Color

black
Black
  • Choose the #1 brand for the #1 value
  • Up to 190 pages
  • Cartridges ship in packaging that is 100% recyclableSee all Specs
Product # C9351AN#140
9% back in HP Rewards
More than 50% of Original HP Ink Cartridges are made with recycled ocean-bound plastic.[10]
Want more pages, great reliability, and amazing value? You want original HP inks.

Take pride in high-quality prints with Original HP Ink.

The choice you can trust to help avoid reprints and wasted supplies. Choose Original HP Supplies, designed for reliability and consistency.

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.

Technical details

Color(s) of print cartridges

Black

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.

Ink drop

17 pl

Compatible ink types

Pigment-based

Operating temperature range

59 to 95°F

Storage temperature range

5 to 95°F

Operating humidity range

5 to 95% RH

Storage humidity

5 to 95% RH

Recycled content in cartridge

55%

Package dimensions (W x D x H)

4.49 x 1.43 x 4.05 in

Package weight

0.13 lb

Warranty

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

Ink cartridge

HP 21 Black Original Ink Cartridge, C9351AN#140 is rated 4.5 out of 5 by 759.
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Rated 5 out of 5 by Raquel9576 from My Ink Experience Great product! Great price! Was the easiest place to get it.
Date published: 2021-03-07
Rated 5 out of 5 by Minniej51 from Great ink My printer is out dated i was able to get ink, I am so happy
Date published: 2021-03-06
Rated 5 out of 5 by J_A_F from It Works! It works as advertised. Was delivered when promised.
Date published: 2021-03-05
Rated 5 out of 5 by KennethG from Always great printing Arrives quickly, print is always top of the line!!!
Date published: 2021-02-26
Rated 5 out of 5 by bets78 from Trusted Brand. Great Performance I have learned to buy only HP cartridges because they really work well, safeguard my printer, and I trust HP to provide excellent products. I also get Rewards from buying from HP directly which helps with the price + free shipping!
Date published: 2021-02-16
Rated 5 out of 5 by MDuss laptop from Fast Delivery. Fair Price. With the pandemic it is nice I can order from HP at a great price.
Date published: 2021-02-16
Rated 5 out of 5 by LittleDee from Works great. Ink cartridge worked well right from the 1st page. Easy to install. Was especially impressed with the prepaid return envelope to return old HP cartridges for up-cycling! I collected a few to send in. Thank you.
Date published: 2021-02-15
Rated 5 out of 5 by Blondiemindy from Very happy with this I learned the hard way that one should purchase direct from HP for printer ink. I have tried the "remanufactured" cartridges' and 3rd party sales from other sources. I would not do that again. The remanufactured(refilled) ones lasted about 1/3 of their supposed printer ink life. The 3rd party new ones were out of date etc. You get what you pay for and buying from HP wasn't anymore expensive for their quality product.
Date published: 2021-02-15
Rated 5 out of 5 by sexy66 from ink cartridge used remanufactured products which caused a problem with my printer. hp cartridges are the best.
Date published: 2021-02-13
Rated 5 out of 5 by Italochick from Great quality Received promptly. Great product! Shipped quickly.
Date published: 2021-02-04
Rated 5 out of 5 by Viking97 from Easy Order and Delivery I purchased a replacement cartridge just prior to mine expiring. It arrived in a timely manner and has worked fine in my copier. The pricing was competitive, but more importantly, it is HP quality as opposed to something of lessor value...
Date published: 2021-02-03
Rated 5 out of 5 by betty7771 from Long Lasting Product I am a long-time user of HP 21 Black Original Ink Cartridges. I am very pleased with them. They are a high quality ink and long lasting.
Date published: 2021-02-03
Rated 4 out of 5 by Ekbal Hossain from Good Ok Portion on ink is little up 21 is not available in near by store
Date published: 2021-01-28
Rated 5 out of 5 by bugman2 from HP ink After trying the cheaper ink refilled cartridges I only buy HP ink for its quality and dependability.
Date published: 2021-01-26
Rated 2 out of 5 by Anonymous from Good Ink bad price Your ink always works but for 10$ more I can buy an new printer with ink. Don't you see something odd about that. I keep my old machine because it doesn't listen to your updates except for not being able to use "HP Print Support" Wrong Name, which came with the printer.
Date published: 2021-01-22
Rated 5 out of 5 by Pearly Baker from better value when you go to the source I tried a cheaper store but the cartridge didn't last very long, so I went directly to the source and now it's working so much better. Cartridges are lasting a long time. It seems expensive but it's a good value considering the amount of printed pages covered.
Date published: 2021-01-16
Rated 4 out of 5 by Miss Helen from good product for making copies Package arrives on time and product dependable as always.
Date published: 2021-01-14
Rated 5 out of 5 by Erin M from Ink Good price and timely shipping. I have never had a problem ordering from hp.
Date published: 2021-01-12
Rated 5 out of 5 by Sweetpea2020 from Excellent performance Does what I expected. Great performance , speedy shipment.
Date published: 2020-12-22
Rated 5 out of 5 by Euncie from Good Product I've always bought HP ink cartridges, never had a problem.
Date published: 2020-12-22
Rated 4 out of 5 by Anonymous from happy shop hp online all the time quality counts always
Date published: 2020-12-21
Rated 4 out of 5 by blossom dad from HP 21 2 pack black had to order the item directly from HP as the 2 packs are no longer available at the retail stores; older inkjets are a getting more and more expensive. what happen to the old days when HP would send you a email with discount coupons for being a loyal customer?
Date published: 2020-12-18
Rated 5 out of 5 by MGfan from Price was right for the product I purchased. This was my first time buying from HP and was please with the cost of the item.
Date published: 2020-12-04
Rated 3 out of 5 by Unsettled from It's difficult to find I strongly recommend looking for a printer that the ink can be easily purchased
Date published: 2020-12-01
Rated 4 out of 5 by TK11 from ink cartridges Good quality but can be found cheaper on other websites..
Date published: 2020-11-30
Rated 5 out of 5 by smkr from HP 21- 22 i only buy the HP brand - bought off brand before - they didn't work as well - so now i only buyHP 21/22.
Date published: 2020-11-27
Rated 5 out of 5 by Tornado84 from Great Feature! I brought this last week and it is contain with 194 pages on black ink and 164 pages for trio color ink. Thank you!
Date published: 2020-11-26
Rated 1 out of 5 by Baci1 from Only 1 worked I was unhappy because one was bad. I expect more from this company. Date was August 2022
Date published: 2020-11-19
Rated 5 out of 5 by PK from PA from Reliable ink I have a HP computer, a HP printer, and I always use HP inks. I think that reliability is the key feature in all the HP products.
Date published: 2020-11-03
Rated 5 out of 5 by ARRAY Books from Ink and Printing It showed up packed well and on time. I am a satisfied client.
Date published: 2020-10-28
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I am a registered customer, I have sent numerous messages asking for ink to be delibvered to my home address.I have not had a delivery for several months now.

Asked by: Anonymous
Thank you for your question! For assistance with receiving HP Instant Ink shipments, please visit this link: https://instantink.hpconnected.com/us/en/l/v2
Answered by: HP Team Grant
Date published: 2024-07-22

I have a HP Deskjet 2210 - Do you have a high yield ink cartridge that will work in this printer? I usually purchase HP21 cartridges for the black

Asked by: Alexann
There is not currently a high yield option for that unit. Just the standard 21 black and 22 tricolor options are available at this time.
Answered by: HP Live Expert James
Date published: 2024-02-14

what is the expiration date

Asked by: M.j.
HP cartridges do not have expiration dates. They will come with a best-if-used-by date. That date is determined by when the cartridge was manufactured and will appear on the product box. As this will vary, no information is available on what the Best By date would be on an individual cartridge.
Answered by: HP Team Grant
Date published: 2023-09-21

I have an older Officejet 5510v. I need to find replacement ink in black and tri colors what is the number I should order. I have gotten 56 and 57 before, but no one seems to carry any longer

Asked by: Moehegan1
Thank you for your question! The HP 56 and 57 ink is showing as currently available here at HP.com.
Answered by: HP Team Grant
Date published: 2023-05-27

Whats going on w/HP21 Ink cartridges? I purchased one 3/9 fr a local Walmart that didn't work & they wouldn't take it back. I traveled to buy another one fr a office supply store 45 min fr where I live. That one worked but stopped 4/10 - less than 50 pgs.

Asked by: Girl21
Our apologies for the issues with this HP product! Please visit our HP Support Page for help in resolving this technical issue. Online Support: For technical support with this product, visit HP Customer Support http://support.hp.com. Social Media Support: To find solutions, ask questions, and share tips, join us on the HP Support Community at community.hp.com, on Twitter at twitter.com/HPSupport, and on Facebook at facebook.com/HPSupport.
Answered by: HP Team Grant
Date published: 2023-05-27

Does your HP21 Black Ink Cartridge still fit an HP Deskjet 335 All- In-One Printer?

Asked by: buddy115
Thank you for your question! Yes the HP Deskjet F335 is compatible with the HP 21 black and 22 color cartridge. Thank you for being an HP customer.
Answered by: HP Team Grant
Date published: 2023-05-27

Is this product the same as C9351A

Asked by: Anonymous
Hello. Thanks for your question. Yes, this HP 21 black ink cartridge is the same as the C9351A.
Answered by: HP Live Expert Cheri
Date published: 2023-05-27

Will this work for my 2140 fax machine

Asked by: Valdez
Thank you for your question, yes HP 21 will work with the HP Deskjet F2140.
Answered by: HP Team Daniel
Date published: 2024-05-07
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Return and exchange information
HP.com will accept returns or exchanges for this product up to 30 days from the date of delivery. A 15% restocking fee may apply. For details, please visit: https://www.hp.com/us-en/shop/cv/returnsandexchanges.