Canon CLC 1120 Service Manual page 78

CHAPTER 2 BASIC OPERATION
Inputs to the DC Driver PCB (13/13)
SW2
Control switch
SW7
Waste toner
feedscrew lock
detecting switch
PS69L
Transparency
PS69S
sensor
PS70L
Registration
PS70S
sensor
Pre-cleaning
paper sensor
2-30
COPYRIGHT © 1999 CANON INC.
N.O.
N.O.
Registration
path driver
PCB
J552
J312
-2
-A13
-1
-A14
+5V
J553
-A11
-1
-A13
-3
-A11
-2
J559
-B4
-2
-1 -B5
+5V
J560
-1 -B3
-3
-B1
-2 -B2
J528
J521
-2
-1
-4
PS71
-5
-3
Figure 2-319
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
DC driver PCB
J711
J1024
A2
KEYSW *
A3
J535
J1012
A2
WTNRBD
A1
J311
J1013
-B9
-B9
OHPDTC
+5V
-B10
-B8
LEDON *
-B8
-B10
REGDTC
+5V
J1007
-B16
-B17
PCTHM
-B14
PCDTC
-B13
PCLEDON
-B15
When the control switch is
inserted, '0'.
When clogging by toner is
detected, '1'.
When the sensor detects
copy paper, '1'.
When '0', the LED turns on.
When the sensor detects
copy paper, '1'.
Temperature detected
around the sensor. (analog)
When the sensor output
(analog) is '0', the LED
turns on.