Kyocera Mita KM-4530 Service Manual page 298

2BC/D
CN14-9
CN4-5
CN4-6
CN12-10
CN12-11
CN12-12
EPCB
ESW
IFM
MC REM
a 250 ms after the start key is pressed, the image formation motor (IFM) turns on to start machine drive.
b 100 ms after the image formation motor (IFM) turns on, the MC REM signal turns on, high voltage is applied to the
main charger from the high voltage transformer PCB (HVTPCB) and main charging starts.
c The potential stage dropping control of main charging is triggered when the eject switch (ESW) turns off.
d 500 ms after the end of potential stage dropping control of main charging, the image formation motor (IFM) turns off.
2-1-16
DSPS
MCCM FWD REM
MCCM REV REM
HVTPCB
G CONT
CN1-10
MC ALM
CN1-11
MC REM
CN1-12
Figure 2-1-17 Main charging section block diagram
250 ms
100 ms
100 ms
Timing chart 2-1-5 Main charging
MCCM
Main charger
wire
Grid
Drum
DSPS
500 ms
Potential
stage
dropping