a. Input/Output Ports of the RDF (2/2)
3–189
COPYRIGHT © 1996 CANON INC. CANON GP215/200 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
3. OPERATIONS AND TIMING
Address
DFPA
DFPB
DF ExPA
DF ExPB
DF ExPO
bit
Indication
0
PCB internal signal
1
Not used.
2
PCB internal signal
3
belt motor drive signal
4
PCB internal signal
5
feeding motor drive signal
6
PCB internal signal
7
pick-up motor
0
PCB internal signal
1
PCB internal signal
2
PCB internal signal
3
original detection LED
4
PCB internal signal
5
brake
6
clutch
7
paper retaining solenoid (SL2)
0
push switch (SW1)
1
push switch(SW2)
2
push switch (SW3)
3
re-circulation sensor (S13)
4
upper cover switch (MS2)
5
RDF switch (MS1)
6
PCB internal signal
7
0
LED (PCB internal signal)
1
LED (CPB internal signal)
2
Not used.
3
Not used.
4
Not used.
5
Not used.
6
Not used.
7
Not used.
0
DDIP SW1
1
DIP SW2
2
DIP SW3
3
DIP SW4
4
DIP SW5
5
DIP SW6
6
DIP SW7
7
DIP SW8
Signal
DSD
BKD
CLD
WSLD
SW1
SW2
SW3
LDD
UPCC1
RFC
Jack
J8-4
J6-2
J13-2
J5-12
J14-1
J3-2
J2-6
Logic
1: ON (PCB internal
signal)
1: ON (PCB internal
signal)
1: ON (PCB internal
signal)
1: belt motor CW rota-
tion
1: pick-up motor CW
rotation
1: ON
1: ON
1: ON
1: ON
1: pressed
1: pressed
1: pressed
1: paper present
1: closed
1: closed
1: ON
1: ON
1: ON
1: ON
1: ON
1: ON
1: ON
1: ON