No. Name Function
18 ICU PWB Image process control
19 Laser drive PWB Laser beam drive
20 LCD control PWB LCD display control
21 LCD inverter PWB LCD backlight lighting
22 LCD volume PWB LCD display density control
23 Manual feed tray paper size sensor PWB Manual feed tray paper size detection
24 Mother PWB ICU PWB, printer PWB interface
25 Operation control PWB Operation panel control
26 PCU PWB Process control
27 Polygon motor drive PWB Polygon motor drive
28 Process control volume PWB Bias voltage adjustment
29 Interface PWB Interface when connected with a personal computer Option
30 Printer PWB Used when the machine is used as a printer of the connected computer. Option
9. Duplex copy tray
Signal
name
Name Output/Function Type
1 APHPS2 ADU rear plate home position sensor Low when at home position Transmissive photosensor
2 DPPD1 ADU paper transport sensor-1 High when paper passes over Transmissive photosensor
3 APHPS1 ADU alignment plate home position sensor Low when over home position Transmissive photosensor
4 DPPD2 ADU paper transport sensor-2 High when paper detected Transmissive photosensor
5 DTPID ADU tray sensor High when paper detected Transmissive photosensor
6 DPFD ADU paper entry sensor High when paper detected Transmissive photosensor
7 PAM2 ADU rear plate motor ADU rear plate drive DC stepping motor
8 PAM1 ADU alignment plate motor ADU alignment plate drive DC stepping motor
9 DPFC ADU paper feed clutch ADU paper feed roller rotation Electromagnetic clutch
10 DRRC ADU counter roller clutch ADU counter roller rotation Electromagnetic clutch
11 DDC ADU drive clutch ADU drive Electromagnetic clutch
12 ADUPWB Diode PWB Duplex copy tray load driving
1.APHPS2
2.DPPD1
3.APHPS1
4.DPPD25.DTPID 6.DPFD
7.PAM2 8.PAM1 9.DPFC 10.DRRC
11.DDC
12.ADUPWB
4 – 11
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