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AR-651/810 IMAGE PROCESSING 7 - 1
7. IMAGE PROCESSING
7. 1. General Description
The following diagram shows the process from scanning of the original to data writing on the photoconduc-
tive drum surface of the digital copier.
ASIC stands for “Application Specific IC”, meaning an IC designed for a particular use.
The followings are the boards used for the image processing.
Board
Number of image
Function
processing ASIC
SLG board
(PWA-F-SLG-340)
1
PLG board
1
(PWA-F-PLG-340)
Image processing/
writing control
section
[PLG]
Image processing section
Photo
conductive
drum
System
control section
[SYS]
Image
processing
section
[SLG]
Scanning section
Original
Original glass
Scanning
section
[CCD]
Semi-
conductive
laser element
conductive
laser element
Laser drive board
[LDR]
Writing section
Polygonal motor
High-quality image processing, image memory editing, editing
processing, gamma correction, gradation processing, external
output system interface
Smoothing processing, external input system interface, image area
control, laser related control
Machine
control section
[LGC]
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