CompAndSave is proud to offer wallet-friendly prices on our replacement HP DeskJet 6840 ink cartridges with genuine-like quality and satisfaction. Why choose CompAndSave when shopping for HP 6840 ink cartridges?

  • LOW PRICE GUARANTEE. Our HP DeskJet 6840 cartridges are designed to ensure that you will get the same number of sheets and print quality as the genuine ones at a much lesser price.
  • WORKS LIKE THE ORIGINAL. Not sure on how to install replacement HP DeskJet 6840 cartridges? Worry no more as CompAndSave's cartridges are designed to work and perform just like the original cartridges.
  • MORE DISCOUNTS. Enjoy even bigger discounts if you order HP DeskJet 6840 ink cartridges in bulk. We have single and combo pack cartridges available like the HP 94 black ink cartridge (C8765WN) or the HP 94 97 ink cartridges combo pack of 2. Make sure to explore different quantities to find the price break that suits you best.
  • NEXT DAY SHIPPING. HP 6840 ink cartridge orders placed before 2:00 p.m. PST Monday through Friday will be processed the same day. Orders placed after 2:00 p.m. PST will be processed the following business day. Check our Shipping Policy for more information.
  • FREE SHIPPING. For U.S. orders, buy products up to $50 or more, and the shipping fee is on us!
  • SATISFACTION GUARANTEE. CompAndSave is so confident in the quality of our replacement HP DeskJet 6840 cartridges that we offer a FULL refund for orders returned within ten days upon delivery. We even issue refunds or store credit up to 365 days from the purchase date! Make sure to read our Return Policy for more details.
  • WILL NOT VOID PRINTER WARRANTY. Using replacement HP DeskJet 6840 ink cartridges will never void your printer warranty. Visit our Ink Knowledge Base page for more details or contact us for any further questions.

Hurry and take advantage of our great prices for HP 6840 ink cartridges today. SAVE Now!

HP Deskjet 6840 Ink Cartridges

Free shipping on orders $50 or more
All ink & toner come with a one-year 100% satisfaction guarantee.
Our products will never void your printer's warranty.

Replacement HP Deskjet 6840 Ink Cartridges from $7.99

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HP 94 97 Ink Cartridges 2-Pack: 1 Black and 1 Tri-color
Replacement HP 94 97 Ink Cartridges Combo Pack of 2 - 1 HP 94 Black (C8765WN) & 1 HP 97 Tri-color (C9363WN)
Retail Price: $108.98
$17.89

Save $91.09 (84% off retail price)

   
HP 94 95 Ink Cartridge Combo Pack of 2: 1 Black & 1 Tr-color
Replacement HP 94 95 Ink Cartridge Combo Pack of 2 - 1 x 94 Black, 1 x 95 Tri-color
Retail Price: $90.98
$18.94

Save $72.04 (79% off retail price)

   
HP Printer Ink 96 97 Cartridges 2-Pack: 1 Black & 1 Tri-color
Replacement HP Printer Ink 96 97 Cartridges 2-Pack - 1 x 96 Black and 1 x 97 Tri-color
Retail Price: $115.99
$22.80

Save $93.19 (80% off retail price)

   
HP 94 Printer Ink & 97 HP Ink 3-Pack: 2 x 94 Black and 1 x 97 Tri-color
Replacement HP 94 Printer Ink & 97 HP Ink Cartridges 3-Pack - 2 x Black and 1 x 97 Tri-color
Retail Price: $149.97
$24.87

Save $125.10 (83% off retail price)

   
HP 95 Ink Cartridges & 94 Ink 3-Pack: 2 Black & 1 Tri-color
Replacement HP 95 Ink Cartridges & 94 Ink 3-Pack - 2 x 94 Black, 1 x 95 Tri-color
Retail Price: $131.97
$24.93

Save $107.04 (81% off retail price)

   
HP 96 Ink Cartridges & HP 97 Color Ink 3-Pack: 2 Black and 1 Tri-color
Replacement HP 96 Ink Cartridges & HP 97 Color Ink 3-Pack - 2 x 96 Black & 1 x 97 Tri-color
Retail Price: $172.98
$32.82

Save $140.16 (81% off retail price)

   
HP 94 Printer Cartridges & 97 HP Ink 5-Pack: 3 Black and 2 Tri-color
Replacement HP 94 Printer Cartridges & 97 HP Ink 5-Pack - 3 x 94 Black, 2 x 97 Tri-color
Retail Price: $258.95
$42.75

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HP 94 and 95 Ink Cartridges Combo Pack of 5: 3 Black & 2 Tri-color
Replacement HP 94 and 95 Ink Cartridges Combo Pack of 5 - 3 x 94 Black, 2 x 95 Tri-color
Retail Price: $222.95
$42.85

Save $180.10 (81% off retail price)

   
HP 96 97 Ink Cartridge Combo Pack of 5: 3 Black and 2 Tri-color
Replacement HP 96 97 Ink Cartridge Combo Pack of 5 - 3 HP 96 Black (C8767WN) & 2 HP 97 Tri-color (C9363WN)
Retail Price: $288.97
$53.45

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HP 94 Ink Cartridge Black, Single Pack
Replacement HP 94 Ink Cartridge - C8765WN - Black
Retail Price: $40.99
$7.99

Save $33.00 (81% off retail price)

   
HP 96 Ink Cartridge, Black, Single Pack
Replacement HP 96 Ink Cartridge - Black - C8767WN
Retail Price: $56.99
$12.89

Save $44.10 (77% off retail price)

   
HP C8766WN Ink Cartridge Tri-color, Single Pack
Replacement HP C8766WN Ink Cartridge - HP 95 Color
Retail Price: $49.99
$10.95

Save $39.04 (78% off retail price)

   
HP 97 Ink Cartridge Tri-color, Single Pack
Replacement HP 97 Ink Cartridge - C9363WN - Tri-color
Retail Price: $67.99
$10.90

Save $57.09 (84% off retail price)

   
HP 99 Ink Cartridge Photo Color, Single Pack
Replacement HP 99 Ink Cartridge - C9369WN - Photo Color
Retail Price: $16.99
$10.90

Save $6.09 (36% off retail price)

   
HP C9368AN Ink Cartridge Photo Gray - HP 100, Single Pack
Replacement HP C9368AN - HP 100 Gray Photo Ink Cartridge
Retail Price: $24.99
$14.99

Save $10.00 (40% off retail price)

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How to Install HP DeskJet 6840 Ink Cartridges?

  1. Verify that the printer is turned on.
  2. Open the printer's front cover. The ink cartridge's carriage will automatically move, so make sure to wait for it to completely stop moving before you proceed.
  3. Open the lid covering the ink cartridge that needs to be replaced, then pull it out from the printer.
  4. Get your new CompAndSave HP 6840 ink cartridge. Open it over a sink or garbage can to avoid any mess in case it leaks as sometimes, factories tend to overfill the ink cartridges. Make sure to touch the black plastic part only, then remove the covering tape that is usually bright in color as well as the plastic protective case, if there is, before installing it.
  5. Insert the new HP DeskJet 6840 cartridge to its respective slot and close the lid until it snaps lock into place.
  6. Close the printer's front cover.

HP DeskJet 6840 Ink Cartridge FAQs

Can you use other ink cartridges in a HP printer?
Yes, you can. Just make sure that the ink cartridge that you are going to use is the right model for your printer. CompAndSave offers replacement, remanufactured, or compatible ink cartridges that are designed to match the OEM specifications. This means that you can get the same quality and number of prints without paying as much compared to original ink cartridges. For more information, click our Ink Knowledge Base.
What ink does HP DeskJet use?
HP DeskJet printers use different kinds or models of ink cartridges. To know the model number of the cartridge your DeskJet printer is using, you may check the user's manual that came with your printer. You may also check the existing cartridge that is installed in your printer. In front or on the side is a label or sticker with the model number, which usually consists of alphanumeric characters. For example, the HP DeskJet 6840 printer uses the ink cartridge that has the model code of HP 94 for black and HP 95 for tri-color. This printer is also compatible with the higher page yield HP 96 and HP 97 ink cartridges or the optional cartridges, which are HP 100 gray and HP 99 photo color ink cartridges.

Replacement HP Deskjet 6840 Ink Cartridges Reviews