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I
OPERATIONS
AND
TIMING
I
2.
Inputs
to
DC
Controller
(2/2)
DC
controller
PCB
AE
AE
sensor
24V
Black toner
level
sensor
HOh
'
:
c
TH1(NTC1)
CST(SW3)
Cassette
size
sensor
Right
door
switch
[1
Control panel
AE
AEGIN
1W
5V
BTEP
CTD
TH1
"^7
9p.3-25
when
black toner
in
black
developing
assembly
is
below
specific
level,
'0'.
when
color
developing
assembly
is
set,
'1'.
The
voltage lowers
as
the
fixing
heater
temperature
rises.
CSZ1
CSZ2
CSZ3
CSZ4
oscillation
signal
Reads
the cassette
size;
see
p.3-32
RDC
when
right
door
is
closed,
'0'.
Figure
3-4
COPYRIGHT©
1992
CANON
INC.
CANON
NP-1550
REV.1 SEPT. 1992
PRINTED
IN
JAPAN (IMPRIMEAUJAPON)
3-5
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