F o r m a t i o n o f
I m a g e
r - - - - -
- - - - - - - - - - - -
3.
I m a g e e x p o s u r e
P r e - c o n d i t i o n i n g e x p o s u r e
4 .
8 . D r u m
5 .
c o r o n a
M a n u a l f e e d
7 .
o f
o f d r u m
Figure 2-2
The photosensitive drum of a two-layer
its outer layer made of
tor (OPC), and the inner layer
base
made of conducting material.
T i m e
- - -
,
Light
- 5 0 0
P r e - c o n d i t i o n i n g P r i m a r y c o r o n a
D a r k
1 )
2 )
I m a g e e x p o s u r e
3)
Figure 2-3
Figure 2-4
2. Formation of
Latent Image
This
of the first three steps of the
image formation
at its end, the
of the
drum corresponding to dark
of the
areleftwith negativecharges, andthoserepresenting
are rid of negative
3. Step Pre-conditionrng exposure
The pattern of
so formed not visible to
the
eyeand, therefore,
electrostatic
image.
Figure 2-5
C A N O N
R N . 0 M A Y
I N J A P A N
Summary of Contents for NP-2120
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