Technical information

EZI OPERATIONS AND TIMING
C. Inputs to DC Controller
Inputs to DC Controller (1/4)
DCcontroller PCB
I-
Lens home position
sensor
5311-7 t5v
<
-6 ’ LHP
Blank shutter home
5v
-2 .
& SBHP
Pre-registration
paper sensor
Scanner home
position se”sor
cassette 1 paper
sensor
Cassette 2 paper
sensor
Manual feed papel
sensor
r
I
Black tener level l
se”sor
I
I
I
L
1 92
-1
5318-9 1”’
^ <t5v
5306-9 ’
Copyboard cover
0 ’
.+ CBCCl
switch 1
-8 1
I
sw4
Copybaard cover
switch 2
I
5306X0! CBC,-~
-11 I
0
3-4
When lens is at home position, ‘1’.
(flag is at Ql)
When blank shutter is at home position,
‘1’.
(llag at 02)
When paper is present. ‘1’.
(flag is at cl3)
When scanner is at home position. ‘1’.
(llag at 04)
When paper is present. ‘0’.
(flag is not at 05)
When paper is absent in “pper cassette, ‘0’.
(flag is not at c)7)
When papa is absent in lower cassette. ‘0’.
(flag is not at Q7)
When copy paper is present, ‘1’.
(flag is at 03)
When black tener in black developing
assembly is below specified value, ‘0’.
When color developing assembly is set.
‘1’.
When copyboard cover is moved down to
about 20 deg., ‘0’.
(staris 1 st document identification)
When copyboard cover is moved down to
about5 deg., ‘0’.
(starts 2nd Qcument identification; about
1 sec thereafter)
Figure 3-3
COPYRIGHT 0 1992 CANON INC.
CANON NP2f2012020 RN.0 MAY 1990 PAINTEO IN JAPAN IIMPAIME AU JAPON)