Find your printer model and cartridge type first

Before you buy new ink, you need to know which cartridges your HP printer uses. The model number is usually on the front or back of the printer — it looks like "HP OfficeJet 3830" or "HP LaserJet Pro M404n". Write this down or take a photo.

Next, open the printer's access panel. For inkjet printers, this is usually the front door or a hinged cover on top. For laser printers, it is typically a side panel or the front cover. Inside, you will see the cartridges currently installed — they are plastic or metal modules that slide into slots. Look at the color labels or numbers printed on them. HP cartridges are usually labeled with numbers like 62, 65, 304, or 912, sometimes with a color name like "Black" or "Cyan" next to the number.

Write down the cartridge numbers you see. You can also find this information in your printer's manual, which HP hosts on their website if you search "[your model number] manual PDF".

Key Takeaways

  • HP cartridges are identified by a number (like 62 or 912) and a color, which you can find by opening your printer's access panel or checking your manual.
  • You can buy cartridges from office supply stores, online retailers, or directly from HP, and prices vary significantly between new and remanufactured versions.
  • The replacement process takes about two minutes: open the access panel, press the cartridge down to release it, slide it out, and insert the new one until it clicks.
  • If your printer shows a low-ink warning but the cartridge still has ink, you can usually continue printing — the warning is not a hard stop.
  • Keeping the old cartridge after replacement is useful because some printers ask you to confirm you installed a genuine cartridge, and you may need the packaging for returns.

Buy the right cartridges at the right price

HP cartridges come in three versions: original HP cartridges (most expensive), remanufactured HP cartridges (medium price, refilled by HP), and third-party compatible cartridges (cheapest, made by other companies). All three work in HP printers, though HP's warranty covers only original cartridges if something goes wrong.

Original cartridges cost between $15 and $60 per cartridge depending on the model and whether it is black or color. Remanufactured versions cost 20 to 40 percent less. Third-party cartridges can cost half as much as originals, but quality varies — some print as well as originals, others produce faded colors or clog after a few months.

You can buy cartridges at Best Buy, Staples, Office Depot, Amazon, Walmart, or directly from HP.com. Prices differ between retailers, so if you are buying multiple cartridges, check two or three sites. Office supply stores often run sales on cartridges, especially if you have a rewards account. If you buy online, order at least a few days before you run out, because shipping takes time.

Remove the old cartridge and install the new one

Turn on your printer and wait for it to finish any current task. Open the access panel — for most inkjet printers, this is the front door or a hinged cover. The cartridges will move to the center of the printer automatically, or you may need to move them by hand to reach the one you are replacing.

Locate the cartridge you want to replace. Press down on it gently until you hear or feel a click — this releases the cartridge from its slot. Slide it straight out toward you. Do not pull at an angle, as this can damage the contacts.

Remove the new cartridge from its packaging. If there is a protective tape or plastic cover over the cartridge's contacts (the metal or copper-colored part), peel it off completely. This tape prevents the cartridge from drying out during shipping, but it must come off or the printer will not recognize the cartridge.

Align the new cartridge with the empty slot and slide it in straight until it clicks into place. You should feel resistance as it seats, and then a definite click when it locks. Close the access panel. Your printer may display a message asking you to confirm the cartridge installation — follow the on-screen prompts to complete the process.

What to do if the printer does not recognize the new cartridge

If your printer shows an error message like "Cartridge not recognized" or "Cartridge problem", the most common cause is that the protective tape is still on the cartridge contacts. Open the access panel, remove the cartridge, and check the metal or copper-colored contacts on the back. If you see clear plastic tape, peel it off completely and reinstall the cartridge.

The second most common cause is that the cartridge is not fully seated. Remove it and reinstall it, pushing firmly until you feel the click. Make sure you are inserting it straight into the slot, not at an angle.

If the error persists after you have removed the tape and reseated the cartridge, the cartridge itself may be defective. Contact the retailer where you bought it — most will replace a cartridge that does not work within 30 days. If you bought from HP directly, you can return it through their website.

Handle the old cartridge and manage ink spills

Keep the old cartridge and its packaging for at least a few weeks. Some printers ask you to confirm that you installed a genuine cartridge by scanning a code on the packaging, and you may need the original packaging if you return the new cartridge. If the cartridge is completely empty, you can recycle it — most office supply stores have cartridge recycling bins near the checkout, and HP also runs a mail-back recycling program through their website.

If ink spills on your hands or clothes, wash when ready with soap and water. HP ink is water-based and not toxic, but it stains. If ink gets inside the printer on the white plastic or rollers, let it dry and then gently wipe it with a dry cloth — do not use water inside the printer. If ink gets on the cartridge contacts (the metal part), wipe it with a dry, lint-free cloth before reinstalling.

Understand low-ink warnings and when to replace cartridges

Your printer will show a low-ink warning when a cartridge reaches about 10 to 20 percent capacity. This is not a hard stop — you can usually keep printing for several more pages or even weeks, depending on how much you print. The warning is HP's way of suggesting you buy a replacement before you run completely out.

You only need to replace a cartridge when it stops printing in that color, or when the printer refuses to print until you do. Some printers will not print in color if any color cartridge is empty, even if you only need black. Check your printer's manual or on-screen messages to understand your specific model's rules.

If you print rarely, cartridges can dry out even if they still have ink. If your printer has not been used in several months and now produces faint or streaky output, run the printer's cleaning cycle before replacing the cartridge — this often solves the problem. You can usually find the cleaning option in your printer's settings menu or on the printer's control panel.

Frequently Asked Questions

Can I use third-party cartridges without damaging my printer?

Third-party cartridges work in HP printers and do not damage the hardware. However, HP's warranty covers only original cartridges, so if a third-party cartridge causes a problem, HP will not repair it for free. Quality varies widely among third-party brands — some are reliable, others clog or produce poor color. Read reviews before buying an unfamiliar brand.

What is the difference between XL and regular cartridges?

XL cartridges hold more ink than regular cartridges and cost more upfront, but the cost per page is lower because they last longer. If you print frequently, XL cartridges save money over time. If you print rarely, regular cartridges may be better because they are cheaper and you will not waste ink if the cartridge dries out.

Do I need to reset the printer after changing a cartridge?

No. Most modern HP printers recognize a new cartridge automatically when you close the access panel. If your printer asks you to confirm the installation on its screen, follow those prompts, but you do not need to restart the printer or change any settings.

Why is my printer still showing low ink after I replaced the cartridge?

Your printer tracks ink levels by counting how much you print, not by detecting the cartridge itself. If you replaced a cartridge but the printer still shows low ink, the counter did not reset. Open your printer's settings menu and look for an option to reset the cartridge or ink counter. The exact location varies by model, so check your manual if you cannot find it.

Can I refill a cartridge instead of buying a new one?

You can, but it is usually not worth the effort. Refill kits cost $10 to $20 and require you to drill a hole in the cartridge, fill it with ink, and seal it — the process is messy and often results in spills or air bubbles that prevent the cartridge from working. Remanufactured cartridges from HP are cleaner and more reliable, and they cost only slightly more than a refill kit.