Canon LBP-2000 Service Manual page 80

Step 2: laser beam exposure
When the laser beam is run across the photosensitive drum, the charges in the light area become
neutralized, forming a latent static image.
2 . Developing block
In this block, toner is deposited to cover the latent static image on the surface of the photosensi-
tive drum, thus turning it into a visible image.
The Printer uses a toner projection development method, and its toner is a 1-component type.
Step 3: development
Photosensitive
drum
AC bias
DC bias
Note: The light area of the surface of the photosensitive drum actually carries a negative poten-
tial, but the diagram expresses it as carrying a positive potential. The fact indicates that
the potential of the photosensitive drum is higher than that of the cylinder when the latter
is used as the point of reference.
Laser beam
Dark area Light area
Figure 2-4-7
Blade
Developing cylinder
Figure 2-4-8
CHAPTER 2
Stirring rods
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