Primary Transfer (Drum -> Idt 1) - Dell 5110cn Service Manual

1.3.5 Primary transfer (drum -> IDT 1)
In the primary transfer process, toner image formed on the drum surface is transferred onto the surface
of the IDT 1 (Intermediate Drum Transfer 1).
Two IDT 1 are provided: yellow and magenta, and cyan and black are respectively transferred to their
IDT 1.
- IDT 1 is a conductive roll and receives supply of high positive voltage from HIGH VOLTAGE
POWER SUPPLY (HVPS).
The toner image (negatively charged) on the drum is attracted to the IDT1 positively charged, and
transferred from the drum to the IDT1 surface.
At this time, electric charge of the drum surface is neutralized by the IDT1
Drum surface
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+ +
Drum (Y)
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IDT1
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+
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+
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Drum (M)
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+ +
Drum (C)
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IDT1
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Drum (K)
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6 – 10
Chapter 6 Principles of Operation
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: Negative electric charge
+
: Positive electric charge
: Toner
HVPS
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