How many pages does a cartridge print: ISO 19752/19798 yield explained
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Summary: The "yield" of a cartridge is the number of pages it prints, measured by international standards: ISO/IEC 19752 for monochrome toner, ISO/IEC 19798 for color toner, and ISO/IEC 24711 for ink cartridges. Those figures are calculated with 5% page coverage. If your documents use more ink, you will get less yield: it is not a defect, it is the standard. This guide explains how to read the data, why your cartridge "lasts less," and how to calculate how many you need per year.
"This cartridge yields 3,000 pages" is the most misinterpreted figure in the industry. It is not an invented marketing promise: it is data measured with a standardized method. But that method has rules, and knowing them avoids disappointments and misguided complaints.
What is cartridge 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" and allows you to compare cartridges and calculate the cost per page.
For that figure to be comparable between brands, it is not decided by each manufacturer as they please: it is measured following standards from the International Organization for Standardization (ISO).
ISO yield standards
| Standard | What it measures |
|---|---|
| ISO/IEC 19752 | Yield of monochrome (black) toner cartridges |
| ISO/IEC 19798 | Yield of color toner cartridges |
| ISO/IEC 24711 | Yield of ink (inkjet) cartridges |
| ISO/IEC 24712 | Defines the set of test pages used to measure ink |
The common principle of all of them: a standardized test document is printed continuously until the cartridge is exhausted, across several units, and the result is averaged. Thus, "2,000 pages ISO 19752" means the same thing regardless of who manufactures it.
The key almost nobody knows: 5% coverage
The standards measure yield on pages with approximately 5% coverage. That is: only 5% of the sheet's surface carries ink or toner. This is equivalent, more or less, to a normal page of text —a letter, a document— with its white margins.
Here is the misunderstanding. If you print:
- Normal text documents: your real yield will be similar to that on the box.
- Sheets with a lot of text, tables, bold, or graphics: coverage rises to 10-15% and the cartridge yields significantly less.
- Photos or color backgrounds: coverage can reach 30% or more, and the cartridge will last a fraction of what is indicated.
That is why a "1,000-page" cartridge can give you 1,000 with letters or 400 with dense documents. It is not a defect or a deception: it is how the standard works. The figure on the box is a comparable reference value, not a guarantee for your specific case.
If your prints use more ink than a normal letter, calculate conservatively: subtract between 20% and 50% from the box yield depending on how heavy your pages are. This way you won't fall short when planning your purchase.
Standard vs XL yield
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. Almost always, the XL has a better cost per page: it costs more, but it yields proportionately even more. If you print with some frequency, the XL is usually the most profitable option.
How to calculate how many cartridges you need per year
- Estimate how many pages you print per month (check the printer counter in its configuration report).
- Multiply by 12 to get the annual total.
- Divide by the cartridge yield, adjusted to your real coverage (subtract that 20-50% if your pages are ink-heavy).
Example: 250 pages/month = 3,000 per year. With a 2,000-page ISO cartridge that in your real usage yields about 1,500, you will need 2 cartridges per year. To refine the calculation in euros, use our savings calculator.
Does a compatible yield the same as an original?
Yes, if it is certified. A quality compatible cartridge is manufactured and measured with the same ISO 19752 / 19798 / 24711 standards, and must deliver the yield it declares. If the box indicates an ISO yield and the cartridge yields significantly less, there is a lack of conformity that can be claimed: you have a 3-year legal warranty to demand a replacement or refund. What changes between a certified compatible and a cheap uncertified one is, precisely, that the former complies with the standard and the latter does not measure it.
In the Star Toner catalog the ISO yield is indicated 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 indicates a yield measured with ISO standards (19752 for mono toner, 19798 for color toner, 24711 for ink), calculated on pages with 5% coverage. A home ink cartridge is around 200-500 pages and a toner cartridge is 1,000-3,000, but your real figure varies according to the density of your documents.
Why does my cartridge last less than what the box says?
Because the yield on the box is measured with 5% page coverage, equivalent to a normal text letter. If you print dense documents, tables, graphics, or photos, coverage increases and the cartridge yields less. It is not a defect: it is how the ISO standard works.
What is the ISO 19752 standard?
It is the international standard that measures the yield of monochrome toner cartridges. It defines a standardized test document and a measurement method so that the page figure is comparable between manufacturers. 19798 does the same for color toner and 24711 for ink cartridges.
What does 5% coverage mean?
It means that only 5% of the test page surface carries ink or toner, which is equivalent to a normal text document with its margins. It is the basis of calculation for ISO standards. If your pages use more ink, your real yield will be lower.
Is the XL cartridge worth it?
In general yes, if you print with some frequency. The XL cartridge contains more ink or toner and almost always offers a better cost per page: it costs more, but it yields proportionately more. For very occasional use, the standard may suffice.
Does a compatible cartridge yield the same as the original?
Yes, if it is certified. A quality compatible is measured with the same ISO standards and must deliver the yield it declares. If it yields significantly less than indicated, it is a lack of conformity and you have a 3-year legal warranty to claim.
How do I calculate how many cartridges I need per year?
Look at how many pages you print per month in the printer counter, multiply it by 12, and divide it by the cartridge yield adjusted to your real usage (subtract 20-50% if your pages are ink-heavy). The result is the number of cartridges per year.
Read more on Startoner
- The real cost of printing: honest math per page
- How to extend the life of your toner and ink cartridges
- Ink or toner cartridge: which to choose based on how much you print
- Legal warranty for compatible cartridges in Spain
- Complete catalog of certified compatibles
Last update: May 2026. Startoner, Central Warehouse, Calle Océano Atlántico 38, 11379 Los Barrios, Cádiz. CHICTRATEC S.L. (NIF B72834534), part of the Recycop Group founded in 1998.