Grayscale Printer Test Page
21-step grayscale chart, smooth gradient, and fine detail tests — all in one free printable page.
Test Page Preview
What this grayscale test checks
21-step chart
21 evenly spaced blocks from white to black let you spot missing steps caused by low toner or clogged nozzles.
Smooth gradient
A continuous 256-level gradient reveals banding or print-head gaps that the step chart might miss.
Radial gradients
Circular gradients test radial ink distribution and expose uneven pressure across the print zone.
Fine line reproduction
Lines from 0.25pt to 4pt confirm your printer can reproduce very thin marks — important for documents and photos.
Text sharpness
Multiple font sizes from 8pt to 20pt verify text clarity and fuser performance on laser printers.
Parallel line banding check
A series of equally spaced horizontal lines immediately shows drum banding or roller defects.
Frequently Asked Questions
What is a grayscale test page?
A grayscale test page checks how evenly your printer reproduces shades from pure white (0%) to pure black (100%). It includes step charts, gradients, and fine line tests.
Does a grayscale test waste colour ink?
No. Most printers can be set to 'print in black only' or 'grayscale mode' in the print dialog, which uses only the black cartridge or toner.
What does a smooth gradient tell me?
A smooth, banding-free gradient means your black ink or toner is distributing evenly and there are no clogged nozzles or damaged drum areas.
I see horizontal bands — what does that mean?
Banding in grayscale output typically indicates clogged print-head nozzles (inkjet) or a worn drum unit (laser). Run a head-cleaning cycle or replace the drum.
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About This Grayscale Printer Test Page
A grayscale test page is the definitive diagnostic for black ink and toner performance. Unlike a simple black-and-white print that either works or doesn't, a grayscale test reveals subtle problems: a 21-step chart exposes missing density levels, a continuous gradient shows nozzle gaps, and parallel line patterns identify drum banding in laser printers.
For inkjet printers, grayscale output often uses a composite mix of black and colour inks to extend the tonal range. If you see colour casts in what should be neutral grey tones, one of your colour cartridges may be empty. Switching the printer to black ink only mode in the print dialog isolates the black cartridge and gives a purer grayscale test.
For laser printers, banding at regular intervals — evenly spaced horizontal stripes — typically indicates damage to the drum unit rather than the toner cartridge. The spacing between bands corresponds to the drum circumference; if banding repeats every 94 mm, the drum is approximately 30 mm in diameter, consistent with a standard laser drum nearing end-of-life.
Grayscale vs Black & White: What's the Difference?
A black and white test page is a quick pass/fail check for overall black output. A grayscale test provides more granular tonal data — it is the professional choice when you need to measure density linearity, shadow detail loss, or highlight blow-out. Run the grayscale test when a standard B&W test is not giving you enough information.