Lexmark MX421 - Page 372

Expose
1 Photoconductor drum
2 Printhead
The printhead emits the light that contacts the surface of the photoconductor drum. The light turns on or
o
coinciding with the digital latent image. The light causes areas of the photoconductor drum surface to lose
charge, resulting in a relative opposite polarity.
7017-2xx, -4xx, -6xx
Theory of operation
372