2. Inputs to and Outputs from the Duplexing Driver PCB
Duplexing paper
sensor
PS24
Horizontal
registration
guide home
PS25
position sensor
Reversal paper
sensor
PS26
Duplexing
feeder roller 1
home position
PS23
sensor
Reversing
roller releasing
SL7
solenoid
Duplexing
SL6
flapper solenoid
Duplexing
CL5
feeding clutch
M8
Duplexing motor
Horizontal
M7
registration
motor
COPYRIGHT © 1999 CANON INC.
Download free service manual at http://printer1.blogspot.com
J20-3
-1
-2
J21-3
-1
-2
J22-3
-1
-2
J23-3
-1
-2
Figure 2-113
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2 BASIC OPERATION
Duplexing driver PCB
J2008-1
+5V
-3
DUPPS*
When the sensor detects paper, '0'.
-2
J2006-1
+5V
-3
HREGS
When the sensor detects that the
-2
horizontal registration guide is at
the home position, '1'.
J2007-1
+5V
-3
SWBKS*
When the sensor detects paper, '0'.
-2
J2007-4
+5V
-6
When the sensor detects that the
DRPS
-5
duplexing feeding roller 1 is at
the home position, '1'.
+24VA
J2009-2
-1
PRRESLD*
When '0', the reversing roller is
released.
+24VA
J2002-2
-1
DUPSLD*
When '0', paper enters the duplexing
unit.
+24VA
J2003-2
-1
DUPCLD*
When '0', the duplexing feeding
roller rotates.
J2004-1
SWBAD
-2
Duplexing motor rotation
SWBAND
-3
control signal
SWBBD
-4
SWBBND
J2005-1
HRGCOMA
-2
HRGCOMB
-3
HRGAD
-4
HRGAND
-5
HRGBD
-6
HRGBND
Horizontal registration motor
rotation control signal
2-13