Kyocera KM-4230 Service Manual page 43

2A3/4
Original scanning
The original image is illuminated by the exposure lamp (EL) and scanned by the CCD
PCB (CCDPCB) in the image scanning unit via the three mirrors, the reflected light
being converted to an electrical signal.
The scanner and mirror frame travel to scan on the optical rails on the front and rear of
the machine to scan from side to side. The speed of the mirror frame is half the speed
of the scanner. When the SRDF is used, the scanner and mirror frame stop at the DF
original scanning position to start scanning.
SHPSW
SM
1-3-20
SMPCB
CN3-1–
CN3-6
EPCB
Figure 1-3-18 Optical section block diagram
EL
INPCB
CN1-1–
CN1-6
MPCB
Original
CCDPCB
LSU
Drum