Canon NP2120 - Page 64

OPERATIONS AND TIMING
- Controls the scanning lamp.
- Controls the primary/transfer coronacurrent and
grid bias voltage.
A. Outline
- Controls the developing bias.
- Measures the document density.
- Controls the developing assembly and drum
Figure 3-22 shows the construction of the image
cleaning unit.
- Controls the blank shutter.
formation system, and the system has the following
functions:
Pre-exposure lamp
I l
Lamp regulator
-
5
c:
-
3
AE senso,
x
w
a
Photosensitive drum
I
I
GRDON
r
Black developing I
assembly
I
High-voltage transformer
/‘^‘\
‘.
\
Developing
cylinder
LA
--,
r
Figure 3-22
3-24
COPVNIGNT 0 1992 CANON INC.
CANON NPZl20/2MO MEV.0 MAV 1990 PAINIEO IN JAPAN IIMPRIME AU JAPONI