In four-color printing, as four colors of toner are piled up on the paper, the holding force of
the toner weakens as the transfer process progresses. To counteract this effect, the DC
controller increases the positive DC bias applied to the transfer charging roller for each
successive color.
Figure 5-24.
Toner transfer
Step 8: Separation
The paper’s elasticity causes it to separate from the ETB as the ETB reaches the top of its
path.
Figure 5-25. Separation illustrates this step.
Figure 5-25.
Separation
Fusing block
The fourth part of the image formation process is the fusing block, in which the toner image
is fused to the paper, making a permanent image that cannot be smeared. This block
consists of one step: fusing.
ENWW Image formation system 159
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