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Printer Ghosting — Repeated Faint Image on Laser Printer Output

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Overview

Fix laser printer ghosting where a faint repeated copy of the previous image appears at regular intervals on the printed page.

Key Details

  • Ghosting is a faint repetition of an image appearing further down the same page
  • The ghost image repeat distance corresponds to the circumference of the drum or fuser roller
  • Positive ghosting: ghost is darker than the background (excess toner not cleaned from drum)
  • Negative ghosting: ghost is lighter than the surrounding area (charge pattern remaining on drum)
  • Ghost images are a key diagnostic tool — the repeat distance identifies which roller is failing

Common Causes

  • Drum unit nearing end of life with a worn surface that retains charge patterns
  • Fusing unit not heating evenly, leaving unfused toner that transfers to the drum
  • Charge roller (primary charge) not properly neutralizing the drum surface between prints
  • Low-quality or defective toner cartridge not cleaning the drum effectively

Steps

  1. 1Measure the ghost repeat distance: drum (75-94mm typically), fuser (varies by model)
  2. 2If drum circumference matches: replace the drum unit (it is retaining charge patterns)
  3. 3If fuser circumference matches: the fuser is not heating evenly — may need replacement
  4. 4Try replacing the toner cartridge first (cheaper) — the wiper blade may not be cleaning properly
  5. 5Print several solid black pages to see if the ghosting self-corrects (excess toner cleaning)

Tags

ghostinglaserdrumfuserimage-quality

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Frequently Asked Questions

Measure the distance between the original image and the ghost. Compare to drum circumference (usually 75-94mm) and fuser roller circumference (model-specific). The roller whose circumference matches the repeat distance is the cause.