3LF
2-3-2
Figure 2-3-2 PF main PWB silk-screen diagram
Connector Pin Signal I/O Voltage Description
YC2 1 +24V3 O 24 V DC 24 V DC power source
Connected
to the PF
paper feed
clutch and
PF paper
conveying
clutch
2 FEEDCLN O 0/24 V DC PF paper feed clutch: On/Off
3 +24V3 O 24 V DC 24 V DC power source
4 TRANSCLN O 0/24 V DC PF paper conveying clutch: On/Off
YC4 1 +24V3 O 24 V DC 24 V DC power source
Connected
to the PF
paper feed
motor
2 GND - - Ground
3 TMOTLOCK I 0/3.3 V DC PF paper feed motor lock signal
4 TMOTCLK O 0/3.3 V DC (pulse) PF paper feed motor drive clock signal
5 TMOTDRVN O 0/24 V DC PF paper feed motor: On/Off
YC5 1 +24V3 I 24 V DC 24 V DC power source
Connected
to the con-
trol PWB
(printer) or
PF main
PWB (paper
feeder 1)
2 GND - - Ground
3 PFSI I 0/3.3 V DC (pulse) Serial communication data input signal
4 PFSO O 0/3.3 V DC (pulse) Serial communication data output signal
5 PFSEL I 0/3.3 V DC (pulse) Paper feeder selection signal
6 +3.3V1 I 3.3 V DC 3.3 V DC power source
YC6 1 +24V3 O 24 V DC 24 V DC power source
Connected
to the PF
main PWB
(paper
feeder 2)
2 PGND - - Ground
3 PFSI O 0/3.3 V DC (pulse) Paper feeder 2 serial communication data input
signal
4 PFSO I 0/3.3 V DC (pulse) Paper feeder 2 serial communication data output
signal
5 PFSEL I 0/3.3 V DC (pulse) Paper feeder selection signal
6 +3.3V1 I 3.3 V DC 3.3 V DC power source
7 NC - - Not used
YC7 1 PFEED I 0/3.3 V DC PF paper feed switch: On/Off
Connected
to the PF
paper feed
sensor
2 GND - - Ground
3 +3.3V1 O 3.3 V DC 3.3 V DC power source
YC5
YC6
YC7
YC2
PH1
1
1
1
14
YC4 YC1
YC3
SW1
1
1
1
7
5
5
3
7
6