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Printer Resolution and DPI Test Page
Printers advertise one resolution and deliver another. This chart measures what you actually get.
Set scaling to 100%. Choose Actual Size in the print dialog, never Fit to page — scaling distorts every measurement on this sheet. The Download PDF button hands you that same sheet as a ready-made file, so there is no scaling decision to get wrong.
How to print the Printer Resolution and DPI Test Page
- Print at Actual Size / 100% at the highest quality the driver offers.
- Read the line-pair columns from coarsest to finest and note where white gaps disappear.
- Check the converging line groups for moiré or interference patterns.
- Verify the circles are round — oval output invalidates the rest of the sheet.
- Read down the type scale and note the smallest legible size.
- Repeat at a lower print quality to see how much effective resolution you actually lose.
Reading the result
| Fine line pairs remain separated | The printer is resolving close to its rated resolution at this quality setting. |
| Line pairs merge at the finest column | Expected — the column where gaps disappear is your effective resolution. If it merges far earlier than the rated figure, check the print quality mode. |
| Converging lines show moiré or false patterns | Halftone screening is interfering. Switch to a different print quality, or turn off any sharpening/smoothing in the driver. |
| Circles are oval or the grid is not square | Scaling is not at 100%. This is the most common reason a resolution test appears to fail. |
| Small type is broken or filled in | Resolution is fine but ink volume is wrong — usually a paper-type mismatch or an over-inked photo mode. |
| Everything is fuzzy including large type | The driver is upscaling. Confirm the document is not being printed at a reduced size, and that no "fit to page" option is active. |
Also check
- Black and white page — Gives a practical read on small type and line pairs without needing to interpret converging targets at all.
- Gradient and banding page — Separates a true resolution limit from a density fault: both look soft in fine detail, but only banding shows in a continuous ramp.
- Alignment page — Confirms whether oval geometry is scaling or the driver resizing the document before it ever reaches the paper.
Related test pages
- B&W printer test page — Removing colour from the equation isolates density, toner coverage and fine detail problems.
- Alignment printer test page — If lines that should be straight come out crooked, or text looks doubled, the printhead is out of alignment. This sheet measures it.
- Colour printer test page — One sheet that exercises every colour channel at once: bars, a smooth gradient, a mixing grid and a type scale.
Frequently asked questions
What is effective resolution vs. rated resolution?
Rated resolution is the number of droplets or dots the hardware can place. Effective resolution is what survives the driver, halftone screen, paper and ink spread — it is always lower, sometimes by half.
Why do my circles print oval?
Almost always scaling. The page is dimensioned in millimetres; if the driver fits it to a different paper size, everything stretches non-uniformly.
Is a higher DPI always better?
For text and line art, yes. For photos on plain paper, gains plateau quickly because ink spread in the paper fibres becomes the limiting factor, not dot placement.
Why does the rated DPI on the box never match this chart?
Rated DPI counts droplet positions at the finest hardware grid. The chart measures what survives driver scaling, halftone screening, ink spread in the paper and viewing distance, and those losses are larger than the specification implies — often by a factor of two.
At what viewing distance does DPI stop mattering?
Around 30 to 40 centimetres for text, where differences beyond 600 DPI are hard to see. For photographs at arm’s length, ink spread in the paper becomes the limiting factor long before dot placement does, which is why higher settings gain little on plain paper.
Does printing at a higher DPI always use more ink?
Not in proportion to the number. Higher DPI places more, smaller droplets, and the driver often cuts volume per droplet to compensate. Coverage stays similar; what changes is edge smoothness, which is why text looks crisper without the page printing noticeably wetter.