Step 1: Charge; Step 2: Expose - Konica Minolta Bizhub 4700P Service Manual

bizhub 4700P/bizhub 4000P Service Manual

12.6.2 Step 1: Charge

During the charge step, voltage is sent from the HVPS to the charge roll beside the photoconductor.
The charge roll applies a uniform negative charge over the entire surface of the photoconductor to
prepare it for the laser beam.

12.6.3 Step 2: Expose

The laser fires a focused beam of light at the surface of the photoconductor and writes an invisible
image, called a latent image. The laser beam only discharges the surface where the beam hits the
photoconductor. This creates a difference in charge potential between the exposed area and the rest of
the photoconductor surface.
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