HP Color LaserJet CM2320 - Multifunction Printer - Page 109

Step 3: development
Toner acquires a negative charge as a result of the friction from the developing cylinder rotating against
the developing blade. When the negatively charged toner comes in contact with the drum, it adheres to
the electrostatic latent image. When the toner is on the drum, the image becomes visible.
Figure 5-14 Development
Developing blade
Developing cylinder
DC negative bias
Photosensitive drum
Unexposed area
Exposed area
Exposed area
Unexposed area
ENWW Image-formation system 97