Image Processing; Outline; Iii. Image Processing - Canon GP215 Service Manual

III. IMAGE PROCESSING

A. Outline
The image processing system converts the optical image projected on the CCD into electrical signals
(image signals) for correction and processing.
The correction/processing functions are by the following PCBs, and the results of correction/process-
ing are forwarded to the PCBs that follow them:
Analog processor
PCB
A-D
conversion
circuit
CCD
COPYRIGHT © 1996 CANON INC.
Image processor PCB
Image
Shading
processing
correction
circuit circuit
Binary
processing
for fax
Video signal
switching circuit
Command conversion
circuit
Protocol controller PCB
Figure 3-301
CANON GP215/200 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
3. OPERATIONS AND TIMING
D/A
conversion
Binary
processing
CORE/IP
Reproduction
Board
ratio
processing
Laser driver
PCB
Laser
driver
circuit
G3 FAX
Board/NCU
Printer
Board
Network I/F
Board
3–29