Transfer Current Circuit
[A]: Transfer power pack
[B]: Transfer roller
[C]: Nip between drum and transfer belt
[D]: Drive rollers
The transfer power pack does the following:
• Monitors the currents I1 and I2
• Adjusts its output (It) to keep the current I3 constant, regardless of changes in temperature or humidity
which can affect the surface resistance of the paper.
A varistor [E] keeps the voltage at the cleaning roller constant [F].
Transfer Belt Drive and Paper Transport
The drum motor [A] drives the transfer belt [B] through belts and gears.
The transfer belt by its electrostatic charge attracts the paper [B], so a transport fan is not required.
Image Transfer and Paper Separation
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