Canon CP660 Service Manual page 57

Inputs to and Outputs from the DC Controller PCB (7/10)
Developing rotary
motor PCB
J701-1 24VB
24VAR
-4,5
Black toner cartridge
detecting switch
SW644
PMP
PBK
Sub relay
PCB
Turret button
switch
SW673
J673-4 EXSW* J643-3
J673-3 GND J643-4
Toner cartridge
cover switch
SW672
PBK
PYMC
Delivery cover/front cover
switch
SW671
J671-2 PMP
J671-1 PFUFR J642-4
J673-1 24UH J643-6
High-
J5002-4,3 24UH J646-1,2
voltage
PCB 1
COPYRIGHT © 1999 CANON INC.
Download free service manual at http://printer1.blogspot.com
Main relay PCB
J648-5
-1,2
Right cover
switch
SW641
J644-2
-1
J642-2
J642-1
SW642
Drum cartridge
detecting switch
J642-3
FET switch
circuit
Figure 2-109
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2 BASIC OPERATION
+24VB
DC controller PCB
J641-1,2,3
J647-A7 J227-A5
DSW3
J647-B5 J227-B7
EXSW*
J647-B3 J227-B9
DSW4
J647-B4 J227-B8
DSW5
J647-A8 J227-A4
DSW2
J647-A9 J227-A3
DSW1
J647-B6 J227-B6
PSAVE*
+24UH
J647-B6 J227-B1
∼ ∼
-B11 -B5
When the black toner cartridge
is present, '1'.
When the turret button is
pressed, '0'.
When the toner cartridge cover
is closed, '1'.
When the photosensitive drum
cartridge is present, '1'.
When the right cover is closed, '1'.
When the delivery cover/front
cover is closed, '1'.
When the save power command
is received, '0'.
2-9