What Toner Does the HP LaserJet Pro MFP M426fdw Use?

Quick answer: The HP LaserJet Pro MFP M426fdw uses HP 26A (CF226A) (~3,100 pages) or HP 26X (CF226X) high-yield (~9,000 pages) black toner cartridges. They are the same cartridge in two capacities, and the imaging drum is built in — there is no separate drum to buy. For most owners the HP 26X (CF226X) gives the lowest cost per page.

HP LaserJet Pro MFP M426fdw Toner Cartridges at a Glance

The M426fdw is the all-in-one version of the M402 platform, adding a duplex document feeder, scanning, copying and fax. It uses the same all-in-one cartridge with the drum built in, so running costs are identical to the print-only model.

Standard vs. High-Yield: Which One Should You Buy?

Almost everyone with a HP LaserJet Pro MFP M426fdw should be buying the high-yield HP 26X (CF226X) rather than the standard HP 26A (CF226A). The high-yield cartridge is physically the same size and installs identically — it is simply filled with more toner. At roughly 9000 pages versus 3100, it prints about 2.9x as much for a price that is nowhere near 2.9x higher, which is why the cost per page always lands in its favor.

The only reason to choose the standard cartridge is if you print so little that a cartridge would sit in the machine for years. Toner is a dry powder and does not dry out the way inkjet ink does, so even very light users are usually better off with the high-yield version.

To run the math on your own printer, our Printer Ink Cost Calculator will show you the cost per page for any cartridge price and yield combination.

Good News: There's No Separate Drum to Buy

Unlike most Brother mono lasers, the HP LaserJet Pro MFP M426fdw uses an all-in-one cartridge. The imaging drum is built into the HP 26X (CF226X) itself, so every time you replace the toner you are also fitting a brand-new drum. There is no second consumable to track, no drum-life counter to watch, and no separate part to order.

This matters when you compare running costs across brands. A Brother machine may show a lower price per toner cartridge, but a drum unit comes due every few cartridges on top of that. With the HP LaserJet Pro MFP M426fdw, the cartridge price is the whole story — which also means print quality resets completely with every replacement.

It is also why you should be sceptical of any listing offering a "drum unit" for this printer. If you see one, it is either for a different model or it is a refill kit, and neither is what you want.

What Actually Ships in the Box

The M426fdw ships with a full 26A cartridge of around 3,100 pages rather than a reduced starter — one of the genuine advantages of HP's JetIntelligence machines over most competing lasers.

Chips and Compatibility

The 26A and 26X use HP JetIntelligence chips, so compatible cartridges should be bought in their chipped form for correct toner-level reporting. This model is not identified as a Dynamic Security printer in the way the later M428 is, but keeping automatic firmware updates disabled is a reasonable precaution if you rely on compatible toner.

How to Replace the Toner in the HP LaserJet Pro MFP M426fdw

1. Open the front cartridge door. On most models this is the panel just above the paper tray.
2. Grip the handle on the used cartridge and pull it straight out toward you.
3. Take the new HP 26X (CF226X) out of its packaging and rock it gently back and forth several times to loosen the toner inside.
4. Pull the orange tab to remove the full length of the sealing tape from the cartridge, then remove the orange protective shield from the drum if one is fitted. Do not touch the green or grey drum surface with your fingers.
5. Line the cartridge up with the rails inside the printer and slide it in until it seats firmly.
6. Close the door and wait for the printer to finish its calibration cycle.
7. Print a configuration or test page to confirm the printer recognises the new cartridge and the supply level has reset.

Keep the packaging for a few days. If the cartridge turns out to be faulty, most sellers — Castle Ink included — will want it returned in its original box.

Troubleshooting Tips

Scans and copies are streaked but prints are clean: Clean the narrow scanner glass strip used by the document feeder. This is a scanner issue, not a toner one.

"Cartridge Low" warning appears early: HP's threshold is conservative on this series. Expect several hundred usable pages after the first alert.

Compatible cartridge not recognised: Check that it is the chipped North American version, then power-cycle the printer with the cartridge reseated.

Document feeder pulls multiple sheets: Replace the ADF separation pad and pickup roller — a common wear item on high-volume M426 units.

Faded or blotchy output: Rock the cartridge end to end to redistribute the toner. Because the drum is integrated, persistent defects call for a new cartridge.

Which Other Printers Use the Same Cartridge?

The HP 26A / 26X cartridge is used across a wide range of machines, which is good news for buyers — high production volume keeps compatible cartridge prices low and availability high. If you run more than one of these printers, a single cartridge type covers all of them:

• HP LaserJet Pro M402d / M402dn / M402dne
• HP LaserJet Pro M402n / M402dw
• HP LaserJet Pro M403 series
• HP LaserJet Pro MFP M426dw / M426fdn / M426fdw
• HP LaserJet Pro MFP M427 series

Always confirm the cartridge number printed on the supply you are replacing before ordering, since manufacturers occasionally use similar-looking numbers across families. You can also look your machine up on our Find Ink by Printer directory, which lists the correct cartridge for several hundred printers.

Compatible vs. OEM: What You're Actually Buying

The single biggest cost decision for a HP LaserJet Pro MFP M426fdw owner is whether to buy HP-branded cartridges or compatible ones. It is worth understanding what the difference actually is, because the marketing on both sides tends to obscure it.

An OEM cartridge is made by HP and sold under its brand. A compatible cartridge is newly manufactured by a third party to the same physical and electrical specification. A remanufactured cartridge is an original shell that has been collected, stripped, cleaned, fitted with new wear parts and refilled. All three will print on a HP LaserJet Pro MFP M426fdw; what varies is price, consistency and who stands behind it.

The honest summary is that quality in the compatible market is uneven, and that is exactly why the seller matters more than the label. A cheap cartridge from a marketplace listing with no return path is a gamble. Castle Ink tests HP 26X (CF226X) cartridges individually before they ship and backs every one with a replacement-or-refund guarantee, which is what turns a 50–70% saving from a risk into a straightforward decision.

One myth worth putting to rest: using a compatible cartridge does not void your printer warranty. In the United States, the Magnuson-Moss Warranty Act prevents a manufacturer from conditioning warranty coverage on the use of its own consumables. A manufacturer would have to demonstrate that the third-party cartridge itself caused the specific failure being claimed.

How to Make a Cartridge Last Longer on the HP LaserJet Pro MFP M426fdw

Toner yields are quoted at 5% page coverage, which is a fairly sparse business letter. Real documents are often denser than that, which is why so many people feel their cartridges run out early. A few settings changes genuinely stretch a cartridge:

• Use draft or toner-save mode for internal documents. It reduces toner density and can extend a cartridge noticeably. Reserve full-quality output for anything leaving the office.
• Print duplex. It does not save toner, but it halves paper use, and on most machines it is a one-time driver setting.
• Rock the cartridge when the low warning first appears. Removing the cartridge and tilting it gently end to end redistributes the remaining powder and commonly yields another hundred pages or more.
• Do not print a test page after every job. Configuration and status pages are full-coverage prints and add up faster than people expect.
• Choose a smaller, lighter font for drafts. Moving from a 12pt heavy serif to an 11pt lighter face measurably reduces coverage across a long document.

Ignore advice to store cartridges in a freezer or to drill and refill them yourself. Neither helps, and both are good ways to ruin a cartridge and make a mess.

Official HP LaserJet Pro MFP M426fdw Resources

• HP LaserJet Pro MFP M426fdw support page
• HP driver and software downloads
• How to stop HP firmware updates from blocking your ink
• How to recycle used cartridges

Bottom Line

The M426fdw is a strong small-office all-in-one with genuinely low running costs, provided you buy the 26X. The high-yield cartridge prints roughly three times as many pages as the 26A, and with the drum built in there is nothing else to purchase. A compatible 26X from Castle Ink is where most of the saving comes from.

Frequently Asked Questions

What toner does the HP LaserJet Pro MFP M426fdw use? HP 26A (CF226A, ~3,100 pages) or HP 26X (CF226X, ~9,000 pages) black toner cartridges, with the imaging drum built in.

Should I buy the 26A or the 26X? The 26X in nearly all cases. It roughly triples the yield for a much smaller increase in price.

Is there a separate drum for the M426fdw? No. The drum is integrated into the cartridge, so quality resets with every replacement.

Can I use the same cartridge as an M402dn? Yes. The M402 and M426 families share the 26A and 26X.

Do scanning and copying use toner? Scanning does not. Copying does, because a copy is a scan followed by a print.

Does compatible toner void the warranty? No. Under the Magnuson-Moss Warranty Act, a manufacturer cannot void a warranty purely because a third-party cartridge was used.

Why does the printer ask to calibrate after a cartridge change? It is confirming the new supply and setting print density. Let it finish before sending a large job.

Written and reviewed by William Elward — Founder of Castle Ink, 20+ years in the printer and ink industry. Last updated August 2026.

Shop Compatible Toner at Castle Ink

Save 50–70% on replacement toner for the HP LaserJet Pro MFP M426fdw. Every cartridge is individually tested before it ships and backed by Castle Ink's compatibility guarantee — if it does not work in your printer, we replace it or refund you.

• HP 26A (CF226A) black toner (compatible)
• HP 26X (CF226X) high-yield black toner (compatible)
• Shop all HP toner at Castle Ink

Buy the HP LaserJet Pro MFP M426fdw on Amazon: HP LaserJet Pro MFP M426fdw on Amazon

See also: Find Ink by Printer | Printer Ink Cost Calculator | Best Printers Buying Guide