Laser Printer Test Page
Diagnose toner, drum, and fuser issues with dense text blocks, toner density steps, and a precision banding check.
Test Page Preview
What this laser test diagnoses
Toner sharpness
Dense text at 10pt reveals whether toner is fusing correctly. Fuzzy edges suggest fuser temperature issues.
Toner density
10 density steps from 100% to 10% show if toner is distributing evenly across the full darkness range.
Fine lines
Lines from 0.25pt to 4pt test the printer's resolution. Broken or blurred fine lines indicate print engine limitations.
Banding check
28 parallel lines expose drum banding caused by worn drum coatings or roller contamination.
Ghosting detection
Dense text followed by lighter areas makes ghosting artifacts from fuser or drum issues easy to see.
Resolution dots
Fine dot patterns confirm the printer is operating at its rated dpi and toner is not spreading.
Diagnosing common laser printer faults
| Symptom | Likely cause | Action |
|---|---|---|
| Faded output across the page | Low toner | Replace or shake the toner cartridge |
| Repeating bands at fixed interval | Worn drum unit | Replace the drum or imaging unit |
| Ghost image below main print | Fuser unit fault | Replace the fuser or reduce print density |
| Vertical white streaks | Contaminated corona wire | Clean the corona wire with a dry cloth |
| Toner smears when touched | Fuser not reaching temperature | Check fuser unit or printer warm-up time |
| Spotty or speckled output | Damaged drum surface | Replace the drum unit |
Frequently Asked Questions
What is a laser printer test page?
A laser printer test page includes dense text blocks, toner density steps, fine lines, and parallel line patterns specifically designed to stress-test laser toner cartridges and drum units.
How do I spot a drum problem with this test?
Print the page, then look at the parallel lines section. If you see periodic light or dark bands repeating at a fixed interval, the drum unit may be worn and needs replacing.
What is 'ghosting' on a laser test page?
Ghosting appears as faint repeated images offset below the main print. It usually indicates a fuser unit problem or an overloaded drum. Check your printer manual for fuser replacement instructions.
Can I use this test page for a colour laser printer?
Yes. The laser test page uses black only, so it tests your black toner cartridge and drum on both mono and colour laser printers.
How often should I print a laser test page?
Whenever you notice print quality issues — streaks, banding, fading, or ghosting. You can also print one after installing a new cartridge or drum to confirm correct installation.
Diagnose your laser printer now
Free, no login required. Works with HP, Canon, Brother, Xerox and all laser printers.
About This Laser Printer Test Page
A laser printer test page is different from a standard inkjet test in one important way: it stresses the toner cartridge, drum unit, and fuser simultaneously. This free page includes dense text passages, toner density steps from 10% to 100%, precision fine lines, and a parallel-line banding pattern specifically designed to expose the failure modes unique to laser printing technology.
The most common laser printer problems — banding, ghosting, toner smearing, and faded output — each leave a recognizable signature on the test print. Banding appears as evenly spaced horizontal stripes and points to the drum unit. Ghosting (a faint repeated image offset below the main print) indicates a fuser that is not fully erasing the electrostatic charge, a symptom of fuser wear or overloading. Toner smearing when you rub the page means the fuser is not reaching its operating temperature. Each of these is diagnosable from the printed sheet in under a minute.
Compatible Laser Printer Brands
This laser print test works with all major brands: HP LaserJet, Brother HL and MFC series, Canon imageCLASS, Xerox VersaLink, Kyocera ECOSYS, Ricoh SP, Samsung Xpress, and Lexmark B series. The test page uses only black toner, so it also isolates the black channel on colour laser printers like the HP Color LaserJet, Canon C series, and Brother MFC-L series. For a combined colour and toner check, pair this page with the CMYK test page.