4-3 Electrical control system
4-3-1 Electrical parts layout
(1) Circuit boards, sensors and switches
)
9
⁄
‡
1
‹
^
%
#
4
$ &
1 Main board (KP-777
2 System DIMM [board]
3 Engine board (KP-864)
4 Sensor board (KP-574)
5 LCD controller board (KP-738)
6 Engine relay board (KP-760)
7 APC board (KP-742)
8 Pin photo diode sensor [board]
9 Fuser board (KP-756)
0 Power supply unit
! High voltage unit
@ Registration sensor (PH701)
# Paper gauge sensor 1 (PH702)
Figure 4-3-1 Circuit boards, sensors and switches
fl
fi
@
*1
*2
/KP-858
)
*1
(KP-710
/KP-689
(KP-746)
0
*
(
$ Paper gauge sensor 2 (PH703)
*2
)
% Top cover/paper feed unit interlock switch
^ Side cover interlock switch (SW703)
& Top cover switch (SW701)
* MP tray paper sensor (PC502)
( Option feeder sensor (PC501)
) Paper full sensor
⁄ Exit sensor
¤ Temperature/humidity sensor
‹ Power switch
› Paper size switch
fi Thermistor
4-23
7
8
6
›
*1
*2
*3
fl Thermal cutout
‡ Network interface card
FS-1800/1800N | FS-3800/3800N
¤
5
!
2
3
(SW702)
: FS-1800/1800N
: FS-3800/3800N
: Standard installed
for FS-1800N/3800N
models only.
*3