Utax CLP 3521, Service Manual, Page: 179 / 187

2HL/2HM/2HN
2-3-14
2-3-4 Paper exit PWB
Figure 2-3-4 Paper exit PWB silk-screen diagram
Connector Pin Signal I/O Voltage Description
YC1 1 +3.3V2 I 3.3 V DC 3.3 V DC power source
Connected
to the
engine
PWB. 2 FTHERM O Analog Fuser thermistor detection voltage
3 PDIRN O 0/3.3 V DC Envelope switch: On/Off
4 EXITPAP O 0/3.3 V DC Paper exit sensor: On/Off
5 GND - - Ground
6 FDFUL O 0/3.3 V DC Paper full sensor: On/Off
7 FEEDOPN O 0/3.3 V DC Front cover open/close switch: On/Off
8 FUFANDRN I 0/12/24 V DC Fuser fan motor 1: Full speed/Half speed/Off
9 +24V1 I 24 V DC 24 V DC power source
10 DUREVDRN I 0/24 V DC Duplex solenoid: On/Off
YC2 1 +24V1 O 24 V DC 24 V DC power source
Connected
to the fuser
fan motor 1 2 FUFANDRN O 0/12/24 V DC Fuser fan motor 1: Full speed/Half speed/Off
YC3 1 +24V1 O 24 V DC 24 V DC power source
Connected
to the
duplex sole-
noid 2 DUREVDRN O 0/24 V DC Duplex solenoid: On/Off
2
1
10
9
YC1
BE
WE
WE
11
12
2
2
YC5
YC2
YC3
YC6
YC4
WE
PH1
PH2
3
21
1
WE