December 2002 TOSHIBA TEC 6 - 1 e-STUDIO160/200/250 IMAGE PROCESSING
6. IMAGE PROCESSING
6.1 Introduction
The following diagram shows the processes on the digital copier, from the scanning of the original up to
transfer onto the photosensitive drum.
Fig. 6-1-1
The following table describes the board and its functions for image processing.
Original
Image processor PrinterScanner
Original glass
Shading
control
A/D
Conversion
Image
processing
MAIN board
Laser drive board
[LDR]
Polygonal motor
drive board
[PDV]
Semicon-
ductor laser
device
Photosen-
sitive drum
CCD board
ASIC (ST.LOUIS)
SLG board
Page
memory
Smooting
ASIC (EET)
Image processing/
Print control
ASIC (PTC)
07001
Board No. of ASIC Function
SLG Board 1 High quality image processing, image memory editing, editing process-
ing, gamma correction processing, tone processing, and external out-
put systems interface
MAIN Board 2 Image area control, laser relation control, smooting processing
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