Scan_Ip Block Diagram - Xerox WorkCentre 385 Service Manual

SCAN_IP Block Diagram

SCAN_IP internal consists of A/D converter,
scanner controller, and image processor. A/D
converter changes image signal to digital signal.
Scanner controller supplies interface
between host controller, and CIS driver signal.
Image processor performs shading correction of
image signal, gamma correction, and logic.
Circuit Description
signal
CIS Control
(RLED, GLED, BLED, CIS,_CLK, CIS_SH)
CIS
Analog
Data
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A/D
Sample
Clock
A/D
Converter
Digitized
Data
System
Data BUS
DMA
Control
FIG. 7-11: SCAN_IP BLOCK DIAGRAM
SCAN_IP
Pixel
Data
IP
Control
Scanner
Controller
Processed
Data
Data
Timing
IP Control Data
Formatted Data for DMA
Formatted Data
for DMA
IP Control Data
Host
Controller
WorkCentre 385
Image
Processor
Data
Memory