Image Transfer
D014/D015/D078/D079 6-78 SM
Image Transfer and Separation
This machine employs a repulsion-force bias system for belt-to-paper image transfer.
The transfer power pack [A] applies a negative bias to the ITB bias roller [B].
The negative bias applied to the back side of the ITB forces the toner from the surface of
the belt onto the paper.
This system has two advantages:
The negative bias has no effect on the moisture in the paper.
Because the bias is applied from the front side of the paper, the bias can be applied
more effectively, regardless of the level of humidity around the paper.
After the image has been transferred to the paper:
The paper discharge plate [C] (connected to the separation power pack) applies an ac
charge to neutralize the charges on the paper and the ITB.
Next, curvature separation at [D] separates the paper from the belt when the ITB
makes its abrupt turn toward the top of the machine for the next copy cycle.
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