Diagnostic aids 3-65
7462
Roll, toner transfers from the Magnet Roll to that point on the drum. There is now a visible toner image on the
drum surface. The image is called a developed image.
Transfer
As the paper travels between the transfer Roll and the photoconductor (drum), the Transfer Roll applies a
positive charge to the back of the printing paper. This positive charge transfers the negative charged toner
image from the photoconductor (drum) to the top surface of the paper. The toner image is now on the paper
and the paper is now stuck to the photoconductor (drum) due to the relative electrical differences between the
Developer
Roll
Metering
Blade
Toner
HVPS
DRUM
-VDC
Drum Surface
Voltage
Drum Surface
Image
Toner at
-VDC Developer
Bias value
Discharge
Level
0V
Visible Developed Image
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