Find the exact toner your printer needs

Your printer model number tells you which toner cartridge to buy. Look on the front or back of your printer for a label with the model — it usually starts with letters like HP, Canon, Brother, or Xerox, followed by numbers. Write this down or take a photo.

Once you have the model number, search for "[your model number] toner" on the manufacturer's website or a retailer like Amazon, Staples, or Office Depot. The search results will show you the exact cartridge number you need. For example, an HP LaserJet Pro M404n uses HP 59A or 59X toner — these are not interchangeable, so the number matters.

Check the page carefully for page yield, which tells you how many pages one cartridge will print before running out. A higher yield means the cartridge lasts longer but usually costs more upfront. If you print a lot, a high-yield cartridge often costs less per page.

Key Takeaways

  • Find your printer's exact model number on the device itself, then search that number plus "toner" to locate the correct cartridge.
  • Original manufacturer cartridges cost more but work reliably, while third-party cartridges cost less but may void your warranty or cause print quality issues.
  • Buy from the manufacturer's website, authorized retailers, or large retailers like Amazon or Staples to avoid counterfeit cartridges.
  • Replacing toner takes five to ten minutes: open the printer, remove the old cartridge, install the new one, and close the access panel.
  • Your printer will alert you when toner is low, giving you time to order before you run out completely.

Decide between original and third-party cartridges

Original cartridges are made by your printer's manufacturer — HP, Canon, Brother, Xerox, and so on. They cost more but are may provide to work with your printer and produce consistent print quality. Most printers are designed around these cartridges, so color accuracy and toner distribution work as intended.

Third-party cartridges are made by other companies and cost 30 to 50 percent less. They work in many printers, but print quality can vary, and some printers may show warning messages or refuse to recognize them. A few manufacturers void your warranty if you use non-original cartridges, though this is less common than it used to be. If your printer is still under warranty and you want to keep it that way, check your warranty document or call the manufacturer before buying third-party toner.

If you print mostly text documents and do not need perfect color, third-party cartridges often work fine. If you print photos or important documents, original cartridges are worth the extra cost. Buy from established retailers — Amazon, Staples, Office Depot, or the manufacturer's own website — to avoid counterfeit cartridges, which are common on smaller reseller sites.

Order and receive your cartridge

Once you know which cartridge you need and whether you want original or third-party, add it to your cart and check out. Shipping usually takes three to seven business days from major retailers. If you need toner urgently, check whether your local Staples or Office Depot has it in stock — you can often pick it up the same day or next morning.

When your cartridge arrives, open the box and check that the model number on the cartridge matches what you ordered. The cartridge should be sealed in plastic. Do not open it until you are ready to install it, because toner can dry out if exposed to air for too long.

Prepare your printer for cartridge replacement

Turn off your printer and let it cool for a few minutes if it has been running. This prevents accidental burns and gives the internal mechanisms time to stop moving. Open the access panel — on most printers this is a door or cover on the front or side. Your printer's manual will show you exactly where, but usually you just pull or press a latch and the panel swings open.

Inside, you will see the toner cartridge sitting in a metal or plastic frame. It is usually a large cylinder or rectangular block, often black or colored. Do not touch the green or gold contacts on the cartridge or the printer — these are electrical connections and oils from your skin can damage them.

Remove the old cartridge and install the new one

Look for a lever or handle on the cartridge itself. Most cartridges have a green or colored handle on top or on the side. Pull this handle toward you firmly — you may need to pull hard, as cartridges are held in place with springs. The cartridge will slide out of its slot. If it does not move, check that you are pulling the correct handle and that nothing is blocking it.

Set the old cartridge aside on a piece of newspaper or a paper towel — toner powder can stain, and you may want to recycle the cartridge later. Many retailers and manufacturers offer cartridge recycling programs, sometimes for free or with a small discount on your next purchase.

Unwrap your new cartridge and remove any plastic seals or tape. There is usually a long plastic strip that runs along the cartridge to protect the toner inside — pull this out completely. Some cartridges have a plastic cap on the end — remove this too. Slide the new cartridge into the slot, pushing firmly until you hear or feel a click. The cartridge should sit flush with the frame, not sticking out.

Close the printer and run a test page

Close the access panel by pushing it back into place until it latches. Turn the printer back on. Most printers will display a message confirming that a new cartridge has been installed. If your printer asks you to confirm the cartridge type or model, select yes or confirm — this tells the printer to reset its toner counter.

Print a test page to make sure everything is working. On Windows, right-click your printer in Settings and select "Printer properties," then look for a "Print test page" button. On Mac, go to System Preferences, select your printer, and click "Print Test Page." The page should come out with even color or darkness across the entire sheet. If you see streaks, blank areas, or very faint text, the cartridge may not be installed correctly — open the access panel again and check that it is pushed all the way in.

Understand when to replace toner again

Your printer will warn you when toner is running low, usually through a message on the printer's screen or in your computer's print queue. This gives you time to order a new cartridge before you run out completely. Some printers will still print after the low-toner warning, but the quality drops and you may get streaky or faint pages.

When the cartridge is completely empty, the printer will stop printing and display an error message. At this point, you must replace the cartridge to print again. Keep the model number of your printer written down or saved in your phone so you can order quickly the next time.

Frequently Asked Questions

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

Yes, refill kits exist and cost less than a new cartridge, but they are messy and require care. You drill a hole in the cartridge, pour in toner powder, and seal it back up. Many people find this process difficult and end up with toner dust everywhere. Refilled cartridges also do not always work as well as new ones, and the refill kit itself can cost $15 to $30, so the savings are smaller than you might think.

What should I do with my old cartridge?

Most retailers that sell toner cartridges will take old ones back for recycling, sometimes for free or with a small discount on your next purchase. Staples, Office Depot, and Best Buy all have cartridge recycling programs. You can also check Earth911.com or call your local waste management to find a recycling center near you. Do not throw cartridges in the trash — they contain toner powder and plastic that should be reused.

Why is my printer saying the cartridge is not recognized?

This usually means the cartridge is not fully inserted or the protective seals were not removed completely. Open the access panel, remove the cartridge, and check that you pulled out all plastic strips and caps. Reinsert it firmly until you hear a click. If the message continues, the cartridge may be counterfeit or damaged — try a different cartridge or contact the retailer.

Is it cheaper to buy cartridges in bulk?

Sometimes, but only if you actually use them before they expire. Toner cartridges do not have a strict expiration date, but toner can dry out if stored in very hot or very cold conditions for years. Buy what you will use in the next 12 to 18 months. If you print very little, buying one cartridge at a time makes more sense than stocking up.

Can I use a cartridge from a different printer model?

No. Cartridges are designed to fit specific printer models, and using the wrong one can damage your printer or produce no output at all. Always match the cartridge number to your exact printer model. If you are unsure, call the manufacturer's support line with your printer model number and they will tell you which cartridge you need.