Canon LBP-1000 Service Manual page 171

C. Input/output signals to/from paper feeder driver PCB
Connector Pin Abbreviation I/O Logic
J2001 1
J2001 2
J2001 3
J2001 4 /FDSNS
J2001 5
J2001 6
J2002 1
J2002 2
J2003 1
J2003 2
J2003 3 /FDSNS
+24V I
GND
NC
O L Paper feeder paper detection signal
NC
FDSN I H Paper feeder pick-up solenoid drive signal
+24V O
/FDSN O L Paper feeder pick-up solenoid drive signal
FD_DR O
GND
I L Paper feeder paper detection signal
APPENDEX
Signal name
A - 9