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Canon NP1550 Service Manual page 38

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I
OPERATIONS
AND
TIMING
I
B.
Basic Operation
of
Image
Formation
System
(black
developing assembly,
2 copies)
COPY
START
WMUPR
9-7
key
WMUP
V
STBY
INTR
SCFW
SCRV
SCFW
SCRV
LSTR
STBY
<>
AER
Main motor
(M1)
/
pre-exposure
lamp
Scanner
movement
Forward
Backv
»ard
Scanner
home
position
sensor
(Q3)
siqnal
Scanning lamp
(LA1)
Primary
/
transfer
corona assembly
Grid bias
ON
/OFF
^^^^^^^^M
^^^^^^^^M
<-
Developing
bias
DC
component
Developing
bias
AC
component
Light intensity
CONTROL
command
^
When CT
unit
is
used.
Figure 3-17
When
a
color
developing (CT)
unit
is
used, the
AC
component
of
the bias
operates
when
the
main motor
(M1)
is
operating.
COPYRIGHT©
1992
CANONINC.
CANON
NP-1550
REM
SEPT. 1992
PRINTED
IN
JAPAN (IMPRIMEAUJAPON)
3-19

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