2.3.2 IMAGE PROCESSING OVERVIEW
CCD
BCU
Polygon Motor
OPC
SBU
IPU
LDB
PCI BUS
Controller
HDD
Key
Data flow
Signal flow
SBU: Photoelectric conversion, Odd/even allocation, Amplification, A/D Conversion (analog to digital), Light intensity detection (scanning)
BCU: Engine control, Scanner control, SBU settings, IPU settings, LDB settings
IPU: Shading correction, Image Processing, Main/Sub scan magnification, Video path switching, Image Compression/ Decompression. The GAVD on this board performs density conversion processing, FCI processing, and edge processing, and also generates the test patterns.
Controller: System control, software application control, image storage control, file compression/decompression
LDB:
PTM | B070/B071 |
