POLRDYN
YC12-1
POLONN
YC12-2
PDMASKN
YC12-4
EPWB
OUTPEN
YC12-3
POLCLK
YC14-5
PDN
YC16-2
MPWB
SAMPLEN1
YC14-10
VDATAP1
YC14-8
VDATAN1
YC14-7
Figure 2-1-13 Laser scanner unit block diagram
Laser scanner unit
Pin-photo
sensor
PDPWB
Drum
2-1-10
2LW/2LX
PM
Laser
beam
Laser
diode
APCPWB