Stop first—then follow these 5 safety checks

A strong odor, burning smell, or “smoke-like” haze can happen when printing—especially after new supplies, paper changes, or heavy runs. Most cases are harmless (heated paper, dust, normal fuser odor), but safety comes first.

5-step safety check (in order)

  1. Stop printing immediately
    Cancel the job and keep the printer idle.
  2. Power off + unplug for 2 minutes
    Let heat settle before opening anything.
  3. Check the paper path (no tools, no force)
    Look for:
  • jammed paper scraps
  • melted label glue / sticker residue
  • foreign objects near the fuser area
  1. Ventilate and do a short restart test
    Open windows. Power on and print one page only.
    If smell returns fast, stop again.
  2. Know when to stop and call service
    Stop using the printer if you see:
  • visible smoke continuing after power-off
  • sparks, unusual noise, or repeated burning smell
  • error lights + strong odor

Common causes (quick understanding)

  • Paper type mismatch (labels/thick paper on wrong setting)
  • Dust on heater/fuser from long idle storage
  • Sticker glue residue from labels
  • Overheating during continuous heavy printing

For distributors, problems become easier to control when consumables are consistent and support rules are clear. Many partners prefer a lot-traceable supply approach with defined replacement handling—such as ASTA’s distributor-oriented compatible cartridge program—so troubleshooting doesn’t turn into guesswork.