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Zorluk: ZorPrinter and Multifunction Device Issues

A systems support technician is troubleshooting a departmental laser printer that produces output with faint, repeating ghost images of previously printed text farther down each page. The technician replaces the toner cartridge assembly (which includes a integrated photosensitive drum), but the ghosting issue continues to occur on every print job. Which of the following components is the most likely cause of this print quality defect?

  1. A damaged or improperly heated fuser roller assemblyCevap
  2. B
    A dirty primary transfer belt charge roller
  3. C
    A misconfigured print spooler service on the print server
  4. D
    An outdated display driver installed on the client workstations

Cevap

A damaged or improperly heated fuser roller assembly is the most likely cause because ghosting that persists after replacing the photosensitive drum indicates toner is failing to properly fuse or is sticking to the fuser roller.
Ghosting occurs when an image is repeated faintly down the page. There are two main causes: drum ghosting and fuser ghosting. Because replacing the toner cartridge and integrated photosensitive drum did not clear the ghosting, the drum is eliminated as the cause. A failing fuser roller that does not reach proper fusing temperature or has damaged coating will pick up toner particles and transfer them onto the paper with each rotation, causing persistent ghost images.

Adım Adım Çözüm

1
Analyze the symptom and previous troubleshooting actions.
The issue is ghosting (repeated image defects). Replacing the toner cartridge and photosensitive drum did not resolve the issue.
Since drum-based ghosting was ruled out by component replacement, the defect must originate downstream in the electrophotographic process.
2
Evaluate remaining electrophotographic components responsible for heat and pressure.
The fuser assembly operates at high temperatures to permanently melt toner particles into paper fibers.
If the fuser heating element fails to maintain proper temperature, or if toner builds up on the fuser roller, un-fused toner transfers back onto the paper surface during subsequent roller rotations.
3
Identify the primary root cause.
Fuser roller assembly failure.
This is the primary electrophotographic component that causes repeating defects when drum replacement does not clear ghosting.

Anahtar Kavram

Laser Printer Electrophotographic Fusing & Ghosting Diagnosis
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Konular

Printer and Multifunction Device Issues

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