A black and white printer test page is the quickest way to check a mono laser printer, an inkjet set to grayscale, or a copier before it handles a real print run. This black and white test page prints a grayscale gradient from pure white to solid black, an eight-step grayscale swatch chart, fine nozzle or drum check lines, an alignment grid and text samples from 8pt to 36pt — everything you need to judge toner or black ink health on one sheet.
Why a black and white test page matters for laser printers
Laser and mono printers don't run out of ink the way inkjets do — they run low on toner, and low toner shows up first as light streaks, faded gray areas or patchy density rather than a blank page. Printing a black and white printer test page on a schedule (say, once a month or after every toner change) gives you an early warning before a real document prints unevenly. It also catches drum wear, which shows up as repeating marks or streaks at a fixed interval down the page — something you'd easily miss on a page of plain text but that stands out immediately against the grayscale gradient and grid.
For inkjet owners who only need monochrome output, this black and white test page is also the more economical choice: it checks the black cartridge specifically without touching color ink, so you are not burning cyan, magenta or yellow ink just to confirm your printer is working.
What's printed on this black and white test page
- Grayscale gradient bar — a smooth fade from 0% to 100% black that reveals banding or abrupt jumps in density.
- Eight-step grayscale swatches — discrete blocks at 0%, 14%, 29% and on up to 100% black, useful for spotting a specific density range that's printing wrong.
- Nozzle or drum check lines — a dense band of fine parallel hairlines that will show gaps if a print head nozzle is clogged or a drum has a defect.
- Alignment crosshairs and grid — corner and center marks plus a ruled grid to confirm the page isn't feeding in skewed.
- Text samples — regular, bold and italic text from 8pt to 36pt to check sharpness and whether small type stays legible.
How to read your black and white test page
Lay the printed sheet flat under normal light next to the preview above. The gradient bar should fade smoothly with no visible stripes or sudden jumps between shades. Every block in the eight-step grayscale chart should be a flat, even tone — mottling or streaking inside a single block points to a toner or ink problem in that density range. The fine check lines should print as unbroken hairlines from edge to edge; a gap in the same spot across multiple lines usually means a clogged nozzle (inkjet) or a scratched drum (laser).
| Symptom | Likely cause | Fix |
|---|---|---|
| Faded or streaky gray areas | Low toner or low black ink | Shake or replace the toner cartridge, or replace the black ink cartridge |
| Repeating marks at a fixed vertical interval | Worn or damaged imaging drum (laser printers) | Replace the drum unit or imaging kit |
| Gaps in the fine nozzle check lines | Clogged inkjet nozzle | Run the printer's nozzle-cleaning utility, then reprint the test page |
| Text looks blurry or has ghosting | Print head or fuser misalignment | Run the alignment tool, or check the fuser unit on laser printers |
| Whole page prints too light even at 100% setting | Print density set too low in driver settings | Increase print density/darkness in the printer driver or on-device menu |
Black and white vs. color and CMYK test pages
Use this black and white test page whenever a printer only outputs grayscale, or when you specifically want to isolate black toner or black ink from the rest of the color system. If your printer also handles color and you want to check every cartridge at once, switch to the color test page. For a page focused specifically on calibrating cyan, magenta, yellow and black together, try the CMYK test page. You can also grab this layout as a printer test page PDF to keep on file or send to a shared office printer.
Tips for a reliable black and white test page result
- Print on plain white paper — textured or off-white stock will make the grayscale steps harder to judge accurately.
- Set the printer to Normal or Best quality; Draft mode deliberately uses less toner or ink and will look faded even when the cartridge is healthy.
- If a laser printer has sat unused for months, print two or three copies in a row — the first sheet can look uneven simply from toner settling in the cartridge.
- Keep a printed copy on file as a baseline, so you can compare future prints against a known-good reference.