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Gray background or shading on laser prints

Laser pages coming out with a light gray haze or shading? Check the drum and toner, use dry paper, reset the density and run the printer's cleaning routine.

10–30 min
Easy
Updated

Quick fix

Load paper from a freshly opened ream and make sure the paper type setting matches it. If the gray haze stays, check the drum: a worn drum or a failing toner cartridge is the most common cause. Printers with a separate drum unit usually show a drum warning or remaining life on their status page, so replace it if it's due.

Didn’t work? Go to the full steps

You might see

  • A light gray haze across the whole page, including areas that should be white
  • Shading that gets heavier toward one side or edge
  • Pages look dirty or lightly speckled with toner
  • A gray background on copies but not on computer prints

Usually caused by

  • A drum near the end of its life
  • A toner cartridge that is faulty, nearly empty or poorly made
  • Damp paper or high humidity
  • Density set too high, or the wrong paper type selected
  • Loose toner inside the printer
  • A dark or colored original, for copies

Safety first. Turn the printer off, unplug it and let it cool before opening it, as the fuser gets very hot; don't touch the drum surface, and handle toner carefully because it stains clothes and spreads easily.

Step-by-step fix

Work through the steps in order and check each one off. Most people are printing again before the last step.

Laser printers

0 of 7 steps tried

  1. Try fresh, dry paper

    Paper that has absorbed moisture takes toner unevenly and can pick up a gray tint. Load sheets from a newly opened ream, and keep spare paper sealed in its wrapper, flat and off the floor.

  2. Check the drum

    A worn drum no longer holds a clean charge, so toner lands on areas that should stay white. Check the drum life on the printer's status or supplies page. If the drum is separate and near its end, replace it; if it's built into the toner cartridge, a new cartridge replaces both.

  3. Swap the toner cartridge

    A faulty, nearly empty or poorly made toner cartridge can also cause shading. If you have a spare, ideally from a different batch or an original, try it, rocking it gently side to side before fitting it.

  4. Clean inside the printer

    With the printer unplugged and cool, remove the toner and drum and wipe loose toner from the cavity with a dry lint-free cloth. Don't use an ordinary vacuum cleaner, because fine toner passes through most household filters. Then run the cleaning page or cleaning mode from the printer's maintenance menu if it has one.

  5. Reset the density

    Many lasers have a print density or darkness setting in the printer's menu or on its web page. If it has been turned up, set it back to the middle or default; a high setting can push toner into background areas.

  6. Check where the printer sits

    Humidity, heat and direct sunlight can all add to shading, so keep the printer away from heaters, open windows and damp rooms. When the drum is out of the printer, keep it covered and out of bright light.

  7. Fix gray copies

    If only copies are gray, the printing side is fine. Clean the scanner glass and lid, then check the copy settings for density, background removal or document type options; a colored or yellowed original often copies with a gray background unless you lighten it.

Common questions

Is a gray background a sign the printer is failing?

Not usually. Most cases come down to a worn drum, a toner cartridge or damp paper, all of which you can replace yourself.

Why is the gray worse in humid weather?

Paper absorbs moisture from the air, which changes how toner transfers to it. Keep paper sealed in its wrapper and load only what you'll use in the next few days.

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