HP Deskjet 840c Ink Cartridges

The following 6 products are guaranteed to work in your HP 840c printer:

Showing 6 products

Got a question about
products for this printer?

Ask a question | View 7 questions

Sets of ink cartridges for HP Deskjet 840c printer

Genuine Black & Tri-Colour HP 15 / HP 17 Ink Cartridge Multipack - (C6615DE & C6625AE)
  • Multipack saving: £4.02

    Compared to buying these separately

  • Pack of 2 ink cartridges
  • Lowest online price guaranteed

    If within 7 days of buying a product from us, you find the same product cheaper at any other UK online store, we will refund you with 100% of the difference.

  • 12 month guarantee and FREE returns

    If within a year of purchase you happen to experience any quality problem, we'll happily provide a replacement, or a full refund.

    Whatever the reason for returning items to cartridgesave.co.uk, you will never pay a penny for postage.

Best value Genuine

6.7p per page

For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

500 pages
480 pages
1 £65.78 (£78.93 inc VAT)
2 £63.92 (£76.71 inc VAT)
3+ £63.27 (£75.92 inc VAT)
Prices includes FREE next-day delivery

Best value Genuine

6.7p per page

For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

500 pages
480 pages
£65.78 (£78.93 inc VAT)

FREE next-day delivery

Multi-buy discount
2 £63.92 (£76.71 inc VAT)
3+ £63.27 (£75.92 inc VAT)

Black ink cartridges for HP Deskjet 840c printer

Colour ink cartridges for HP Deskjet 840c printer

Customer Questions & Answers

Can't find the answer you're looking for?
Ask us a question we're happy to help!

  • My printer is a Hewlett Packard Deskjet 840C. I'm wanting a colour cartridge of good quality colour as I do cards. Which one do you recommend as some are cheaper than others?

    High quality colour cartridge required

    The Deskjet 840C printer uses the HP 17 colour ink cartridge which should help you to create high quality colour images. Obviously, the genuine HP 17 ink cartridge is designed to bring you optimum print performance although our compatible HP 17 ink cartridges are also very reliable and are a cheaper option if you consider the original HP 17 ink cartridge to be too expensive.

    Answered by Danielle Hopkins (Staff Member) - about 7 years ago
  • Hello. Before purchasing, I would like to know if your refill kit refills the HP 840C cartridges from the bottom or from the top?

    Refilling Deskjet 840C cartridges

    Full instructions on how to use our Jet Tec refill kits for the HP Deskjet 840C cartridges are included within the packaging. However, if you need this type of information prior to ordering a Jet Tec Deskjet 840C refill kit from us you can find it here: http://www.jettecrefill.com/search.asp?b=500

    Answered by Paul Kielty (Staff Member) - almost 6 years ago
  • Is it possible to refill the cartridges for my HP Deskjet 840C printer? The cartridge numbers are HP No 17 tri-colour and HP No 15 black? If yes, who does it? Addres & Contact Numbers please!!

    Refilling HP Deskjet 840C ink cartridges

    Yes, you can use our Jet Tec R26 black refill kit to refill your black Deskjet 840C cartridge and our Jet Tec R27 colour ink refill kit to refill your HP 17 tri-colour cartridge. These items are listed above and full instructions on how to refill the Deskjet 840C cartridges should be included within the packaging.

    Answered by Paul Kielty (Staff Member) - almost 6 years ago
  • Do you deliver to Australia and, if so, what's the delivery cost?

    Delivery of Deskjet 840C ink

    Unfortunately, we can only deliver to addresses within the UK. We don't have the facility to ship overseas.

    Answered by Tamara Sawyer (Staff Member) - over 4 years ago
  • I want to find out from your end that can we refill the Deskjet 840C ink cartridge?

    Refilling Deskjet 840C ink cartridges

    Yes, you can buy our Jet Tec R26 or R27 refill kits in order to refill your HP Deskjet 840C ink cartridges properly. For instructions on how to refill your Deskjet 840C printer cartridges using these refill kits please click on the following link: http://www.jettecrefill.com/search.asp?b=500

    Answered by nicole.crossley (Staff Member) - over 4 years ago
  • I'm unable to find where the cartidges go in my Deskjet 840c printer so I can't change my fading inks?

    Replacing Deskjet 840c ink cartridges

    Instructions on how to change your Deskjet 840c printer cartridges should be provided in the printer manual / user guide which you can download from the following page on HP's website: http://h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=uk&dlc=en&lc=en&product=59868&

    Answered by Kirsty Chambers (Staff Member) - almost 4 years ago
  • How do we refill HP Deskjet 840c ink cartridges?

    Refilling Deskjet 840c ink cartridges

    You can purchase one of our refill kits listed on this page to refill your Deskjet 840c printer cartridges. We currently stock a Jet Tec R26 refill kit for black ink cartridges and a Jet Tec R27 refill kit for colour cartridges. Instructions on how to use these refill kits are included within the packaging. However, you can also get full instructions on refilling Deskjet 840c ink cartridges from the Jet Tec website using the link we've provided: http://www.jettecrefill.com/search.asp?b=500

    Answered by Kirsty Chambers (Staff Member) - over 3 years ago
View all questions

Order Cheap HP DeskJet 840C Ink Cartridges

Everyone has a type of printer that they prefer. This can be due to the way it works or even how the prints look, but for every printer there is also something that is needed to keep them running smoothly - ink. With one of our replacement HP DeskJet 840C cartridges you can expect to keep the quality of your prints exceptional while saving money.

HP 840C Cartridges Delivered Free

Get the best DeskJet 840C ink possible for your printer and help your printer last longer and print much more professional looking prints. In addition, with FREE delivery and low prices like ours, why pass up a wonderful opportunity to save some of your hard earned cash? Our DeskJet 840C ink cartridges can keep your printer going for longer, while performing better. So for the best prices, fast next day delivery and money back guarantee, backed up by our award winning customer service team, choose Cartridge Save!

HP Deskjet 840c Printer Review

Expert review of the HP Deskjet 840c printer

Our Verdict:

The HP Deskjet 840C is specifically designed to meet the demands for a reliable, user-friendly, and speedy colour inkjet printer. The Hewlett Packard 840C printer produces photo-quality images and laser-sharp text because of the technologies that HP integrated into the device, and versatile paper handling options allow users to be creative with their print jobs for work or for personal use. Unfortunately, the Deskjet 840C inkjet printer is quite old, so its claimed 'superb performance' may be sub-par according to today's standards.


Integrated with HP technologies like colour layering and coloursmart, the HP Deskjet 840C colour inkjet printer aims to print pictures and documents flawlessly for professional needs. The HP 840C is USB and parallel compatible and uses drop-on-demand thermal inkjet printing method, plus HP PCL level 3 printer language. The Deskjet 840C printer runs on 2MB of RAM with a 48kb receiver buffer and weighs 5.5kg without the pens and power supply.


The HP Deskjet 840C is compatible with USB connections for plug-and-play convenience. It prints images according to how they appear on the monitor, and photo-quality graphics are possible regardless of the media used because of HP Colour Layering technology. Black texts look sharp and laser-like for professional-looking documents. The HP Deskjet 840C inkjet printer can accommodate different types of speciality paper, so users can use it for their greeting cards, banners, labels, and transparencies.


Print speed for black text is only 8ppm in draft mode while print speed for full-page colour graphics is sluggish at 0.2ppm in best mode. The highest resolution of the HP 840C Deskjet printer is 600x600dpi, which is quite low when compared to printers by other brands. Operating system compatibility is very limited to older versions of Windows (before Windows XP). Mac systems need a USB connection to sync with the HP Deskjet 840C colour printer.