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I/O Checkup
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Active lab / 10Printer LabPrintable color, alignment, nozzle, resolution, margin, duplex, photo, and code diagnostics.
PRINTER LAB / PRN.09

Photo Quality Test

Continuous-tone vector scenes, skin-tone references, saturated hues, neutral ramps, highlights, shadows, and fine textures stress photo rendering without an external image download.

LIVE PRINT PREVIEWA4 · Portrait · 1 page · screen preview 68%
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I/O CHECKUP / PRN.09

Photo quality test

PAPER
A4
ORIENTATION
Portrait
PAGE
1
P1

Continuous tone and fine photographic detail

Diagnostic workbench photo for print tone, texture, and detail comparisonSELF-HOSTED WEBP / 1536 × 1024 / NO FILTERS
P2

Skin-tone references

12345678
P3

Highlight / shadow clipping

2468109092949698
P4

Saturation and neutral ramps

P5

Texture fidelity

iocheckup.comPrint at 100% / Actual size unless the tool instructions say otherwise.PRN.09
WHY THIS SHEET EXISTS

Photo quality test: a controlled physical comparison

Use it when photos look flat, clipped, tinted, posterized, over-inked, or noticeably different between paper and quality settings.

01 / INSPECT

What to inspect on paper

  • Sky and neutral gradients remain smooth.
  • Highlight circles stay visible before paper white and shadow circles before solid black.
  • Skin-tone references remain distinct without an obvious global cast.
  • Fine foliage, hairline, and texture patterns stay separated.
02 / HEALTHY OUTPUT

What a clean result looks like

  • Saturated colors retain internal detail rather than becoming featureless blocks.
  • Neutral grays remain neutral under consistent lighting.
  • Curves and gradient transitions print without obvious contour bands.
03 / LIMITS

What the result does not prove

  • This is a practical output comparison, not a calibrated photographic proof.
  • Paper white, coating, ICC profiles, ink limits, and ambient light strongly affect the result.
  • Use the printer maker’s recommended media setting for photo paper.
HONEST BROWSER BOUNDARY

The sheet is the diagnostic instrument.

I/O Checkup prepares the controlled pattern and opens the browser print dialog. A webpage cannot reliably read your printer model, queue, driver faults, ink or toner level, maintenance state, or mechanical condition. Diagnose those systems with the printer manufacturer’s utility after the physical sheet shows a repeatable symptom.