Separation
Paper separates from the drum as a result of the electrical attraction between the paper and the transfer
belt. Pick-off pawls [5] help separate the paper from the drum.
ID Sensor
The ID sensor [6] measures the reflectivity of the pattern formed by the laser on the surface of the drum.
This output signal is used for toner supply control and also measures the drum surface reflectivity, which is
used for charge roller voltage control.
Cleaning
The drum cleaning blade [7] removes any toner remaining on the drum surface after the image is transferred
to the paper.
Quenching
Finally, the light from the quenching lamp [8] electrically neutralizes the charge on the drum surface.
Printing Process Overview
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