A stack of printed sheets next to a toner cartridge
Artículo · Printing Blog | Startoner

How Many Pages Does a Cartridge Print: ISO Yield Explained

Actualizado 18 julio 2026

Summary: A cartridge's "yield" is the number of pages it prints, measured with international standards: ISO/IEC 19752 for monochrome toner, ISO/IEC 19798 for colour toner and ISO/IEC 24711 for ink cartridges. Those figures are calculated at 5% coverage of the page. If your documents carry more ink, you'll get fewer pages: it isn't a defect, it's the standard. This guide explains how to read the figure, why your cartridge "lasts less" and how to work out how many you need per year.

"This cartridge yields 3,000 pages" is the most misunderstood figure in the industry. It isn't an invented marketing promise: it's a figure measured with a standardised method. But that method has rules, and knowing them prevents disappointment and misguided complaints.

Key points

  • Yield is measured with ISO standards: 19752 (mono toner), 19798 (colour toner) and 24711 (ink), not made up by each brand.
  • All tests use 5% coverage per colour, equivalent to a normal text letter with margins.
  • The five ISO/IEC 24712 patterns add up in ink to only a ~20% aggregate (5% for each of black, cyan, magenta and yellow) (ISO, 2007).
  • If you print photos or backgrounds, your real yield drops; subtract between 20% and 50% when planning.
  • A certified compatible is measured to the same standards: if it yields less, you can claim.

What is a cartridge's yield?

Yield (or page yield) is the estimated number of pages a cartridge can print before running out. It appears on the box as "X pages", lets you compare cartridges against one another and is the basis for calculating cost per page. HP defines it plainly: the figure "estimates the average expected yield of a cartridge measured with the ISO test methodology in a specific printing system" (HP, 2025).

The important word is average. It isn't a guaranteed minimum nor an optimistic maximum: it's a statistical average. For that figure to be comparable across brands, it isn't decided by each manufacturer as they please: it's measured following standards from the International Organization for Standardization (ISO).

Which ISO standards measure yield?

There are four standards in play, and it's worth telling them apart because they're often confused. Each covers a type of consumable and they all share the same principle: print a standardised test document, continuously, across several units, until they run out, and average the result.

Standard What it measures
ISO/IEC 19752 Yield of monochrome (black) toner cartridges
ISO/IEC 19798 Yield of colour toner cartridges
ISO/IEC 24711 Yield of ink (inkjet) cartridges
ISO/IEC 24712 Defines the set of test pages used to measure ink

So "2,000 pages ISO 19752" means the same thing whoever makes it. The mono toner standard, ISO/IEC 19752, has existed since 2004; its latest revision is from 2025 (ISO, 2025). The ink one, ISO/IEC 24711, was last updated in 2021 (ISO, 2021). They aren't frozen standards: they're revised to keep pace with real printers.

How exactly is the test done?

For mono toner, the standard requires a minimum of 3 cartridges tested in each of 3 different printers (HP, 2025). For ink, ISO/IEC 24711 raises the bar: at least nine cartridges or sets of cartridges are tested to the end of their life, in a controlled environment at 23.0 °C ± 2.0 °C. That temperature control isn't a whim: humidity and heat affect how the ink is laid down, so without it the figures wouldn't be comparable.

What is 5% coverage and why does it change everything?

Coverage is the percentage of the sheet's surface that carries ink or toner. The ISO standards measure yield on pages with approximately 5% coverage per colour. In other words: only 5% of the sheet is printed. That's roughly equivalent to a normal text page — a letter, a document — with its blank margins.

Here's the misunderstanding that generates almost every complaint. If you print:

  • Normal text documents: your real yield will resemble the box figure.
  • Sheets with lots of text, tables, bold or graphics: coverage rises to 10-15% and the cartridge yields considerably less.
  • Photos or colour backgrounds: coverage can reach 30% or more, and the cartridge will last a fraction of what's stated.

That's why a "1,000-page" cartridge can give you 1,000 with letters or 400 with dense documents. It isn't a defect or a con: it's how the standard works. The box figure is a comparable reference value, not a guarantee for your specific case.

The 5% colour myth. Many people believe an ink cartridge is measured "at 5% coverage" and that's it. The reality is finer: the five test patterns of ISO/IEC 24712 mix text and graphics, and together they represent close to 20% coverage — roughly 5% for each of the four channels (black, cyan, magenta and yellow) (ISO, 2007). That's why colour yield is declared per channel.

At Star Toner we print and test our own compatibles before selling them, and what we see matches the standard: when we run the real office pages a customer sends us — contracts with letterheads, tables, the odd logo — the cartridge yields below the ISO figure on the box. Not because the cartridge fails, but because those pages are more loaded than the 5% letter. When we repeat with clean text documents, the yield comes back close to the declared figure.

A practical rule so you don't come up short

If your prints carry more ink than a normal letter, calculate on the low side: subtract between 20% and 50% from the box yield depending on how loaded your pages are. That way you won't come up short when planning your purchase. If you want to squeeze every cartridge to the end, we have a guide dedicated to how to extend the life of your cartridges.

Is the XL cartridge worth it versus the standard one?

Yes, almost always, if you print with any frequency. Many models are sold in two versions: standard capacity and high capacity (XL). The XL cartridge is physically the same but contains more ink or toner, so it yields more pages. And here's the hidden advantage: the XL almost always has a better cost per page, because it costs more but yields proportionally more still.

The logic is simple. The plastic, the chip and the manufacturing process cost the same in the standard and the XL; the only thing that changes is how much ink or toner you put inside. That's why the XL premium is spread across many more pages. For very occasional use the standard may suffice, but if you print daily, the XL is usually the more cost-effective option. Before deciding, it's worth being clear about how much each page really costs, because that's where the XL proves its advantage.

How do I work out how many cartridges I need per year?

In three steps and with an honest subtraction. The sum is simple, but it only works if you adjust the yield to your real coverage instead of trusting the box number.

  1. Estimate how many pages you print per month (check the printer counter, in its configuration report).
  2. Multiply by 12 to get the annual total.
  3. Divide by the cartridge yield, adjusted to your real coverage (subtract that 20-50% if your pages are loaded).

Example: 250 pages/month = 3,000 per year. With a 2,000-page ISO cartridge that in your real use yields around 1,500, you'll need 2 cartridges per year. To fine-tune the calculation in euros, use our savings calculator. And if you're torn between inkjet and laser for your volume, look at ink cartridge or toner: which to choose.

Why does my real yield never match the box?

Because factors come into play that the standard can't bring into your home. HP acknowledges it explicitly: real yield "varies considerably depending on the content of the printed pages, the typical size of the jobs, the environmental conditions and the proportion of colour versus monochrome printing" (HP, 2025). It adds that each individual cartridge can yield above or below the average due to manufacturing variation itself. Translated: the ISO figure is a fair reference point, not a personalised promise.

Does a compatible yield the same as an original?

Yes, if it's certified. A quality compatible cartridge is manufactured and measured to the same ISO 19752 / 19798 / 24711 standards, and must deliver the yield it declares. If the box states an ISO yield and the cartridge clearly yields less, there's a lack of conformity you can claim: you have 3 years of legal guarantee to demand replacement or refund.

What differs between a certified compatible and a cheap uncertified one is, precisely, that the former meets the standard and the latter doesn't even measure it. That's the real difference, and we put it to the test on camera in original vs compatible toner, we print it side by side. If you're unsure which model suits you, start with how to know which toner your printer needs.

In the Star Toner laser toner catalogue the ISO yield is stated on each cartridge, so you can compare and choose with data.

Frequently asked questions

How many pages does a cartridge print?

It depends on the cartridge and what you print. The box states a yield measured with ISO standards (19752 for mono toner, 19798 for colour toner, 24711 for ink), calculated on pages with 5% coverage per colour. A domestic ink cartridge is around 200-500 pages and a toner one 1,000-3,000, but your real figure varies with the density of your documents.

Why does my cartridge last less than the box says?

Because yield is measured at 5% coverage per colour, equivalent to a normal text letter. If you print dense documents, tables, graphics or photos, coverage rises and the cartridge yields less. It isn't a defect: it's how the ISO standard works, which also warns that real yield varies "considerably" depending on content.

What is the ISO 19752 standard?

It's the international standard that measures the yield of monochrome toner cartridges, in force since 2004 and last revised in 2025. It requires testing a minimum of 3 cartridges in 3 different printers with a standardised test document, so that the page figure is comparable across manufacturers. The 19798 does the same for colour toner and the 24711 for ink.

What does 5% coverage mean?

It means that only 5% of the surface of the test page carries ink or toner per colour, which equates to a normal text document with its margins. In ink, the five ISO/IEC 24712 patterns add up to a ~20% aggregate (5% per channel). If your pages carry more ink, your real yield will be lower.

Does a compatible cartridge yield the same as the original?

Yes, if it's certified. A quality compatible is measured to the same ISO standards and must deliver the yield it declares. If it yields clearly less than stated, it's a lack of conformity and you have 3 years of legal guarantee in Spain to demand replacement or refund.

How do I work out how many cartridges I need per year?

Check how many pages you print per month on the printer counter, multiply it by 12 and divide it by the cartridge yield adjusted to your real use (subtract 20-50% if your pages are loaded with ink). The result is the number of annual cartridges you should budget for.

Keep reading at Star Toner

Sources

  • ISO — ISO/IEC 19752:2025, Method for the determination of yield of monochrome toner cartridges — https://www.iso.org/standard/88924.html
  • ISO — ISO/IEC 24711:2021, Method for the determination of yield of colour ink cartridges — https://www.iso.org/standard/77902.html
  • ISO — ISO/IEC 24712:2007, Colour test pages for measuring consumable yield — https://www.iso.org/obp/ui/#iso:std:iso-iec:24712:en
  • HP — Page Yield: Inkjet & LaserJet Printer Yields — https://learn-about-supplies.ext.hp.com/laserjet-toner-page-yield
  • Epson — How Epson measures page yields (ISO Page Yield Data) — https://www.epson.eu/en_EU/how-epson-measures-print-speeds/iso-page-yield-data
  • Brother — Testing Method for Determining Stated Page Yield for Ink (ISO/IEC 24711) — https://support.brother.com/g/s/id/pdf_pub/ink_regular_24711/declared_page_yield_ink_Regular_en_R02.pdf

Last updated: July 2026. Star Toner, Central Warehouse, Calle Océano Atlántico 38, 11379 Los Barrios, Cádiz.

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