CompAndSave is proud to offer wallet-friendly prices on our replacement HP 3420 ink cartridges with genuine-like quality and satisfaction. Why choose CompAndSave when shopping for HP DeskJet 3420 cartridges?

  • LOW PRICE GUARANTEE. Our HP DeskJet 3420 ink 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 3420 ink 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 3420 ink cartridges in bulk. We have single and combo pack cartridges available like our single pack for the black HP 27 ink cartridge (C8727AN) or the HP 27 and 28 ink cartridges 2-pack. Make sure to explore different quantities to find the price break that suits you best.
  • NEXT DAY SHIPPING. HP DeskJet 3420 cartridges 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 ink 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 3420 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 DeskJet 3420 cartridges today. SAVE Now!

HP 3420 Ink Cartridges - DeskJet 3420 Ink

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 3420 Ink Cartridges from $11.99

HP 27 and 28 Ink Cartridges 2-Pack: 1 Black, 1 Color
Replacement HP 27 and 28 Ink Cartridges 2-Pack - 1 x 27 Black, 1 x 28 Color
Retail Price: $73.98

Save $47.00 (64% off retail price)

Retail Price: $105.97

Save $67.98 (64% off retail price)

Retail Price: $179.95

Save $117.00 (65% off retail price)

HP 27 C8727AN Black Ink Cartridge
Replacement HP 27 Ink Cartridge - C8727AN - Black
Retail Price: $31.99

Save $20.00 (63% off retail price)

Retail Price: $41.99

Save $26.00 (62% off retail price)


How to install HP 3420 ink cartridges?

  1. Turn on your printer.
  2. Open the ink cartridge door.
  3. The ink cartridge's carriage will automatically move, so make sure to wait for it to completely stop moving before you proceed.
  4. To remove the old ink cartridge, lightly press down on it to release it, then pull it out of its slot toward you.
  5. Get your new CompAndSave HP DeskJet 3420 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 along with the plastic protective case, if there is, before installing it.
  6. Slide the new HP DeskJet 3420 ink cartridge into its slot until it snaps firmly into place.
  7. Close the ink cartridge door.

HP 3420 Ink Cartridges FAQs

How do I know what HP ink cartridge I need?
The best way is to check what specific cartridge your printer uses by checking your printer manual, cartridge package, or by doing a quick search using your printer name. If you need more specific instructions, you can check our guide What Ink Does My Printer Use?. CompandSave offers the replacement standard yield HP 27 black and HP 28 for tri-color ink cartridges for your HP DeskJet 3420.
Can I use generic ink in HP printer?
Yes, you can use generic ink for your HP printer. Compatible, replacement, or remanufactured cartridges are designed to meet or exceed the OEM specifications. This means that you can get the same print quality and the number of prints without paying as much compared to the original cartridges. Our compatible, replacement, or remanufactured cartridges are also covered with a 1-year 100% satisfaction guarantee.

Replacement HP 3420 Ink Cartridges Reviews