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Difficulty: HardPrinter Technologies and Consumables Maintenance

A network technician is performing maintenance on a high-volume departmental laser printer that has exceeded its recommended maintenance interval. Users report two distinct symptoms: faint repeated 'ghost' images appearing down each page at uniform intervals equal to the drum's circumference, and frequent paper jams occurring immediately as paper is pulled from the tray. Which of the following maintenance actions should the technician take to resolve these issues? (Select TWO.)

  1. Replace the photosensitive drum assembly containing the primary charge roller (PCR) and wiper blade.Answer
  2. Install a maintenance kit containing new paper pickup rollers and a replacement separation pad.Answer
  3. C
    Increase the fuser roller temperature setting to clear residual toner before the transfer phase.
  4. D
    Recalibrate the optical laser scanning assembly to wipe the electrostatic charge during the exposed writing phase.

Answer

The technician should replace the drum assembly (or primary charge roller/wiper blade) to eliminate drum ghosting, and replace the paper pickup rollers and separation pad to solve paper feed jams.
Replacing the photosensitive drum unit (including the primary charge roller and wiper blade) ensures that residual charge and leftover toner are removed, curing repeating ghost images. Replacing the paper pickup rollers and separation pad restores the necessary surface friction to reliably feed single sheets from the paper tray without misfeeds or jams.

Step-by-Step Solution

1
Diagnose the cause of ghost images repeating at intervals equal to the drum circumference.
Identify that improper drum cleaning or failure of the primary charge roller (PCR) to uniformly charge the photosensitive drum leaves residual charge/toner.
Ghosting occurs during the drum conditioning and cleaning steps of the electrophotographic (EP) process.
2
Diagnose the paper jam occurring as paper is pulled from the tray.
Identify worn, smooth pickup rollers or a degraded separation pad that fails to grip or separate paper correctly.
Pickup rollers wear down over high print volumes, losing traction and causing tray feed failures.
3
Select the appropriate replacement components.
Choose the replacement drum unit/PCR and the tray pickup roller/separation pad kit.
These specific components directly address both the mechanical feeding failure and the EP drum conditioning failure.

Key Concept

Laser Printer Consumables Maintenance and Electrophotographic Troubleshooting
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Topics

Printer Technologies and Consumables Maintenance

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