HP CM3530 - Color LaserJet MFP Laser - Page 165

Step 1: Pre-exposure
Light from the pre-exposure LED strikes the surface of the photosensitive drum to remove any residual
electrical charges from the drum surface.
Figure 5-11 Pre-exposure
Step 2: Primary charging
The primary-charging roller contacts the photosensitive drum and charges the drum with negative
potential.
Figure 5-12 Primary charging
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