Kyocera KM-1650 Service Manual page 231

Drum
DM
ESW
Main
charging
CL
a: The drive motor (DM) turns on at the same time, the cleaning lamp (CL) turns on.
b: 100 ms after the drive motor (DM) turns on, main charging starts.
c: 840 ms after the exit switch (ESW) off, main charging is completed.
d: The drive motor (DM) turns off at the same time, the cleaning lamp (CL) turns off.
CL
MC
Grid
ZENER
PCB
Figure 2-1-9 Drum section block diagram
100 ms
Timing chart 2-1-2 Main charging section operation
MHVADJC
YC1-8
MHVDRN
YC1-12
HVTPCB
CL
YC3-7,8
YC9-9
YC9-5
EPCB
840 ms
2DA/2DB
2-1-9