Who’s behind the site
Printer Test Lab is written and run by Fernando Margareto, Founder & Editor.
Fernando Margareto is a freelance digital professional based in Valencia, Spain, who has spent years building and optimizing websites and local SEO projects. He created Printer Test Lab because most free printer test pages online were bare, A4-only or full of vague advice. The goal is simple: accurate test sheets in Letter and A4, clear explanations of what each result means, and honest guidance on when a fix is worth it. Every sheet on the site is drawn from scratch, and every system step is checked against official documentation from Microsoft, Apple and the printer manufacturers.
You can write to us at info@printertestlab.com or through the contact page. Owner details are in the Legal Notice.
Why this site exists
Many printer test pages online are a single image with a print button. They tell you that something is wrong, but not what, and many of them only come in A4, which doesn’t fit the paper most people in the United States have in the tray. Printer Test Lab was built to do three things better:
- Print the right size. Every sheet comes in US Letter and A4, and the site picks the right one for you.
- Explain the result. Each test page has a guide, with illustrations of a healthy page and of the typical faults, and the diagnosis tool turns what you see into a cause and a fix.
- Stay honest. If a web page can’t do something, such as fire one specific nozzle or send ink to a light cyan cartridge, we say so.
How the test pages are made
Every sheet is drawn in code at its exact physical size, in points (1/72 in), once for Letter and once for A4. The same drawing produces the preview you see on the page, the print-only version your browser prints and the PDF you download, so the three always match.
Before each release, an automated check confirms that every PDF opens, has the right number of pages and measures exactly 8.5 × 11 in or 210 × 297 mm. It also prints every sheet in a real browser to confirm it comes out as one page at the right size, and confirms that the CMYK sheets contain no RGB color at all. The Ink use label on each sheet isn’t a guess: it comes from measuring how much of the rendered page is covered.
The illustrations of printer faults are drawn the same way, from one healthy sample page, so they’re consistent and original. There are no stock photos and no manufacturer logos on the site.
Editorial rules
- Sources for every step. Instructions for Windows, macOS, iPhone, Android and printer brands are checked against the official documentation of Microsoft, Apple, Google, HP, Epson, Canon and Brother, and linked so you can check them yourself. When a step depends on the model, the guide says so.
- Nothing invented. No star ratings, no reviews, no user counts and no “trusted by” badges. When we give a number, such as the share of a page covered by ink, it’s measured.
- No affiliations. Printer Test Lab isn’t connected to any printer maker and doesn’t earn commissions on printers, ink or toner. The site is funded by advertising.
- Corrections welcome. Printer menus change with new firmware. If a step doesn’t match what you see, tell us and we’ll check and update the page.
What’s on the site
- The printer test page tool with every sheet, plus pages for color, black and white and laser testing.
- A free purge sheet generator for CMYK, 6-color and sublimation printers.
- Every sheet as a PDF on the printer test page PDF page.
- Guides for Windows, Mac and printers that print a test page but nothing else, and pages for HP, Epson, Canon and Brother printers.