Toshiba e-studio281c - 7 Image Processing; General Description

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IMAGE PROCESSING
7 - 1
7. IMAGE PROCESSING
7.1 General Description
The following diagram shows the process of this equipment from the input data to writing data on
the photoconductive drum surface.
Fig. 7-1
The followings are the boards used for image processing.
Board Function
SYS board PPC ACS, color conversion, high quality image processing, image memory
editing, rectangular area signal generation, editing processing, gamma
correction, gradation processing, compression/expansion and black
component generation
PRT/SCN Scanner high quality image processing, printer high quality image pro-
cessing, black over print, pure black/pure gray, chroma adjustment and
brightness adjustment
LGC board Smoothing processing, image area control and laser related control
Image processing section Writing section
Original
Original glass
Lens
Scanning
section
[CCD]
USB/Network
Personal
computer
Scanning
control
section
[SLG]
Image processing/
writing control
section
[LGC]
Image processing/
system section
[SYS]
Temporary
storage section
[HDD]
Laser control
section
[LDR]
Photo-
conductive
drum
Semicon-
ductive
laser element
Printer
Copier