Cleaning (Toner Cartridge); Neutralization - Dell 3110cn Service Manual

1.3.5 Cleaning (TONER CARTRIDGE)

In the cleaning (TONER CARTRIDGE) process, excess toner is removed from the drum and BCR
surfaces, while excess charge is also eliminated from the drum surface.
- Drum cleaning
The cleaning blade contacts the surface of the drum collecting the excess toner by scraping.
- Cleaning Roll
The Cleaning Roll contacts the surface of the BCR collecting the excess toner by scraping.
- Charge cleaning
When the drum is charged by BCR, any excess charge hinders the drum surface from being
uniformly charged, which may lead to print quality problems.
The excess charge on the surface of the drum is eliminated by irradiating the light of the Erase
Lamp (LED ASSEMBLY).

1.3.6 Neutralization

In the Neutralization process, the charge on the paper is neutralized or eliminated by the Detack Saw.
- Detack Saw
The charge is neutralized (removed) because otherwise the toner on the paper will spread over the
surrounding metal surfaces.
The Detack Saw is a metal sheet that is held at the ground level. The Detack Saw is installed at
several millimeters away from the backside of the belt.
Version 3 2007.03.15
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Chapter 6 Principles of Operation
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