How to print the ruler test page accurately at 100% scale
Load clean, uncreased paper and choose the same paper size in this page, your browser, and the printer driver. Open the print dialog, select 100% or Actual size, and enable background graphics so solid patches and gradients are retained. Use the paper type that matches the sheet in the tray.
Start with normal quality. Draft mode intentionally reduces density, while high-quality or photo modes can use different passes and inks. A standard print establishes a useful baseline before you change driver controls or run maintenance.
Frequently asked questions about this printer test page
Why should I measure the printed ruler instead of the preview?
Screens have different pixel densities and browser zoom levels. Only a physical ruler placed against the printed reference can verify output dimensions.
Should borderless printing be enabled for the ruler test?
No. Borderless modes often enlarge the page slightly to overspray the edges, which deliberately changes dimensional accuracy.
What this browser test page can and cannot tell you
This page reveals visible output symptoms but cannot read ink levels, identify a failed component, or control your printer. Built-in manufacturer diagnostics are model-specific and should be used for maintenance decisions. Avoid repeating deep cleaning cycles without consulting the applicable printer guidance because cleaning can consume substantial ink.