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4-9
PCB Connector and
Signal Information
(CN3)
Status
0V
Analog
0–5V
Analog
0–5V
Analog
0–8.5V
Analog
0–5V
0V
0V
Analog
2.7–5V
0V
Pin
No.
Signal
Name
Destination
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
GND
CDSN2
VCDS
CDSN1
GOPSW1
TDREF
PVP
TDSN
GND
GOPSW2
PVP
RCSOL
TH1
TH2
Copy density
sensor CN-1
Copy density
sensor CN-2
Copy density
sensor CN-3
Copy density
sensor CN-4
Developer unit
Toner density
sensor CN-4
Toner density
sensor CN-3
Toner density
sensor CN-2
Toner density
sensor CN-1
Developer unit
Recycle
solenoid CN-1
Recycle
solenoid CN-2
Thermistor
CN-1
Thermistor
CN-2
Ground
Paper base tone
detecting signal
Sensor ON/OFF signal
Copy density detecting
signal
Developer unit detecting
signal
Toner density gain
adjustment output signal
DC+24 V power supply
Toner density detecting
signal
Ground
Ground
DC+24 V power supply
Solenoid ON/OFF signal
Fuser temperature
detecting signal
Fuser temperature
detecting signal
5V
ON
Not detect
24V
12V
24V
12V
24V
0V
ON
(FP-D250/D350 Series)