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FS-1010
(2) Engine board
Figure 4-3-3 Engine board circuit block diagram
Main board
(KP-888)
Laser scanner unit
RSTIN
RSTN
PLGCLK
PLGRDYN
PLGDRN
EESCK
MPFDRN
EEDIO
MP feed clutch
Eraser
lamp
Eraser
lamp
control
circuit
RESDRN
Registration clutch
Feed clutch
MOTORN
MRDYN
PFMDRN
FEDDRN
Bias board
(KP-884)
High voltage board
Power supply board
Waste
toner
sensor
Exit
sensor
Interlock
switch
Heater
lamp
Thermistor
Cooling fan
High voltage
output circuit
MHVDR, THVDR, RTHDR, HVISEL, HVCLK
Regist-
ration
sensor
Paper
sensor
MP paper sensor
5 V DC
output circuit
TNFULL
TONER
EXITN
ZCROSS
HEATN
THERMA
FANH
RESIT
Main motor
Engine board (KP-882)
CPU
U01
EEPROM
U03
Toner sensor
Cassette
switch
SWIN
PAPERN
24 V DC
5 V DC
HANDSN
ERASPW
ERASER
Optional
paper feeder
PFSEN, PFPFPER, PFCLK
FANL
Heater lamp
control circuit
Zero
cross
signal
detection
circuit
AC input
24 V DC
output circuit
Reset IC
U02
Tr iac