Printer Ink and Toner Guide (2026): How to Choose, Save Money & What’s Changing

Last updated: September 25, 2026.

Quick answer: To choose the right ink or toner, first find your exact printer model, then the cartridge number it uses (it's printed on the old cartridge, in the manual, or in our find-ink-by-printer directory). Inkjet printers use liquid ink cartridges; laser printers use powdered toner. To save money, buy high-yield (XL) cartridges and choose quality remanufactured ink or compatible toner, which typically cost far less per page than brand-name (OEM) supplies and don't void your printer warranty.

This beginner-friendly guide, updated for 2026, answers the questions people ask most when buying printer supplies for home, office or school: ink vs. toner, how to read cartridge numbers, OEM vs. remanufactured vs. compatible, XL vs. standard, how long cartridges last, how to cut costs, and what's changing in the printer industry this year.

What Is the Difference Between Ink and Toner?

Ink is a liquid used by inkjet printers, which spray microscopic droplets onto the page. Toner is a fine plastic-based powder used by laser printers, which fuse it to paper with heat. Inkjets are cheaper to buy and better for photos and mixed color printing; laser printers cost more upfront but print text faster, at a lower cost per page, and toner doesn't dry out.

Not sure which you need? The PrinterIQ Finder is a ~60-second quiz that helps you find a printer, and our guide to printers with the cheapest ink in 2026 compares running costs.

How Do I Find the Right Ink or Toner for My Printer?

1. Find the exact model number. It's on the front or top of the printer (e.g., "OfficeJet Pro 9015e," "HL-L2350DW"). Small letters matter: an "e" or "w" suffix can change the cartridge.
2. Find the cartridge number. Look on the label of the cartridge you're replacing, in the printer's manual or settings menu, or look up your model in our ink and toner directory, which covers hundreds of HP, Canon, Epson and Brother models.
3. Match the region. Some brands (notably HP and Canon) region-code cartridges, so a cartridge bought overseas may not work in a U.S. printer.
4. Pick standard or high-yield. Both fit the same printer; XL just holds more.

How Do I Read Printer Cartridge Numbers?

Each brand uses its own scheme. A few examples: HP uses short numbers for ink (HP 67, HP 962) with "XL" for high yield, and codes like "58A/58X" for toner where "X" means high yield. Canon uses PG (black) and CL (color) for cartridges with built-in printheads, and PGI/CLI for ink-only tanks. Epson uses a number plus an image name (T212 "Flower," 502 "Fox"), and "XL" for high capacity. Brother uses LC for ink (LC3013, LC401) and TN for toner (TN760), with DR for drum units.

What's the Difference Between OEM, Remanufactured and Compatible Cartridges?

• OEM (original): made by your printer's brand. Consistent, but the most expensive.
• Remanufactured: a genuine OEM cartridge that was recovered, cleaned, inspected, repaired as needed, refilled and tested. It reuses the original shell and printhead (where the head is part of the cartridge), and costs much less. Castle Ink's inkjet cartridges are remanufactured.
• Compatible: a newly manufactured cartridge made by a third party to fit and work like the original. Castle Ink's toner cartridges, drum units and ink bottles are compatible, built from new components.

Quality depends on the supplier, so buy from a seller that tests cartridges and guarantees them. For a deeper comparison, read compatible vs. remanufactured vs. OEM ink and are compatible cartridges safe?

Will Third-Party Ink or Toner Void My Printer Warranty?

No, not by itself. In the U.S., the Magnuson-Moss Warranty Act bars manufacturers from voiding a warranty simply because you used another brand of supplies. They can deny a specific repair only if they show the third-party cartridge caused the damage. Details in does compatible ink void my printer's warranty?

Should I Buy XL (High-Yield) or Standard Cartridges?

Buy XL if you print regularly. High-yield cartridges cost more per cartridge but usually much less per page, and you replace them less often. Standard cartridges only make sense if you print so rarely that ink could dry out before you use an XL. Page yields are measured using ISO/IEC standard test pages (about 5% coverage per page), so real-world yields drop if you print photos or heavy graphics.

How Long Do Ink and Toner Cartridges Last?

Unopened: ink cartridges are typically best used within about two years of manufacture; toner can last longer if stored sealed, cool and dry. Installed: ink is best used within about six months, and may dry out sooner if the printer sits unused; toner remains usable until empty. Store cartridges flat (or as the packaging directs) at room temperature, away from sunlight. More in do ink cartridges dry out?

What Is a Drum Unit, and Do I Need One?

Many laser printers (especially Brother) use a separate imaging drum that transfers toner to paper. The drum lasts several toner cartridges, typically 12,000 to 30,000 pages, and is replaced when the printer shows a "Replace Drum" message or prints develop repeating marks. Other printers (many HP models) build the drum into the toner cartridge, so there's nothing extra to buy.

How Can I Save Money on Printer Ink and Toner?

• Know your cost per page. Divide cartridge price by page yield. Our printer ink cost calculator does it for you, and the Printer Ink Price Index tracks what brand-name cartridges cost.
• Buy XL/high-yield and multipacks when you need several colors.
• Choose remanufactured ink or compatible toner from a reputable seller.
• Use Draft/Eco mode and grayscale for everyday documents.
• Print regularly (once or twice a week) so inkjet nozzles don't clog and waste ink on cleaning cycles.
• Consider an ink tank or laser printer if you print a lot; see ink tank vs. cartridge printers.
• Compare subscriptions carefully. Plans like HP Instant Ink can be good value for steady color printing but lock you in; see how HP Instant Ink works.

How Do I Choose Ink and Toner for an Office or School?

For offices and classrooms, cost per page and reliability matter most. A monochrome laser printer with high-yield compatible toner is usually the cheapest way to print large volumes of text. Standardize on as few printer models as possible so you can stock one or two cartridge types, keep one spare of each, and track usage so you reorder before you run out. For color handouts, a business inkjet or color laser with high-yield supplies keeps per-page cost down.

Why Do Printers Reject Some Cartridges? (Firmware and Dynamic Security)

Some printer makers push firmware updates that check cartridge chips and can block non-original supplies. HP calls this "dynamic security," and printers enrolled in HP+ require Original HP ink. If a working cartridge suddenly shows "not recognized" after an update, firmware is the likely cause. Learn how to manage this in printer firmware updates and third-party ink and the 2026 HP firmware lawsuit.

How Should I Recycle Empty Cartridges?

Never throw cartridges in the trash. Most office-supply stores accept empties (some offer rewards), brands run mail-back programs, and some cartridges can be sold for cash. Recycling empties also supplies the shells that remanufacturers reuse. See how and where to recycle ink cartridges.

What Printer Ink and Toner Trends Matter in 2026?

• Cost-per-page awareness: buyers increasingly compare lifetime running cost, not just printer price.
• Chip and firmware fights: printer makers keep tightening cartridge checks, while lawsuits and right-to-repair efforts push back.
• Subscriptions: ink and toner subscriptions tied to specific printers are growing.
• Ink tanks: refillable tank printers keep gaining share among heavy home users.
• Sustainability: recycling and remanufacturing are getting more attention as a way to cut plastic waste.
• Less printing overall: printing volumes keep declining; see will AI kill printing?

Printer Ink and Toner FAQs

Can I use toner in an inkjet printer (or ink in a laser printer)?

No. Inkjet printers only use liquid ink cartridges and laser printers only use toner. They are completely different technologies.

Can I use a cartridge from a different printer model?

Only if your printer's manual or a trusted cross-reference lists that cartridge number. Similar-looking cartridges often have different chips or shapes.

Does printing in black and white save color ink?

Mostly, yes, but many inkjets still use small amounts of color for maintenance and some black shades. Set "grayscale" or "black ink only" in the print dialog to minimize color use.

Does scanning use ink or toner?

No. Scanning only reads the page. Copying uses ink or toner because it prints.

Are cheap cartridges on marketplaces safe?

Quality varies widely. Buy from sellers that state whether cartridges are remanufactured or compatible, list page yields, and offer a clear guarantee.

Shop by brand: HP ink, Canon ink, Epson ink, Brother ink, and toner cartridges. Orders placed by 4 PM ET Monday–Friday ship the same day.