Image Processing; Overview - Ricoh B089 Service Manual

IMAGE PROCESSING

2.3 IMAGE PROCESSING

2.3.1 OVERVIEW

Drum
LDD
The CCD generates an analog video signal. The SBU (Sensor Board Unit)
converts the analog signal to an 8-bit digital signal, then it sends the digital signal
to the IPU (Image Processing Unit) board.
The IPU board performs the image processing, such as auto shading, filtering,
magnification, gradation processing.
The SIMAC on the controller board performs the image editing, such as image
repeat, double copy.
Finally, the IPU board sends the video data to the LD drive board.
B089/B093
SBU
LD
Controller
(VCU)
LD
Driver
FCI
IPU-A
IPU-B
Video
Controller
IPU
2-6
Fax (FCU Board)
Controller
Printer/Scanner
SIMAC
HDD
B027D504.WMF
SM