Examkin

Soru

Zorluk: KolayPrinter Technologies and Consumables Maintenance

A technician is performing preventive maintenance on a departmental laser printer. Which component of the electrophotographic (EP) print process is responsible for conditioning the photosensitive drum by applying a high uniform negative voltage before the image is written?

  1. Primary Charge Roller (PCR)Cevap
  2. B
    Fuser assembly
  3. C
    Transfer roller
  4. D
    Developing roller

Cevap

The Primary Charge Roller (PCR) is responsible for applying a uniform high negative electric charge across the surface of the photosensitive drum during the charging stage of the electrophotographic printing process.
The Primary Charge Roller (PCR) prepares the photosensitive drum during the charging step by applying a uniform high negative electrical charge to the drum's surface prior to laser exposure.

Adım Adım Çözüm

1
Identify the initial conditioning phase of the electrophotographic (EP) laser printing cycle.
The initial cycle phases proceed as Cleaning → Processing → Charging → Exposing → Developing → Transferring → Fusing.
The drum must be uniformly charged before the laser can write a latent image.
2
Determine which component performs the initial drum charging.
The Primary Charge Roller (PCR) applies a uniform high negative voltage (typically around -600V DC) across the drum surface.
This establishes a baseline charge so the laser scanner can selectively discharge areas to form the latent image.

Anahtar Kavram

EP Printing Process - Charging Stage
Tahmini Süre:45s
Bu soruyu puanla

Konular

Printer Technologies and Consumables Maintenance

Bu konudan daha fazla soru