Image Processing; Outline - Canon iR2030 Series Service Manual

4.3.6 Image Processing

4.3.6.1 Outline

Major specifications and functions of the image processing system are as follows:
- CMOS sensor
- Shading correction
Contact image
sensor (CIS)
Point Description
A Read reference position
B out 0.5 mm from the reference position to the inside of the
roller
C About 1.0 mm from the reference position to the inside of
the roller
0.5mm 0.5mm
A B C
Stream
reading
glass
Number of lines: 1
Shading correction: Made for each job.
Shading adjustment: Made in the Service mode.
Reader controller PCB
Analog image processor
CMOS
sensor
Analog
image
processing
T-4-5
Platen roller
Lens
Contact image sensor
LED
(CIS)
F-4-24
T-4-6
Number of pixels: Total 7488 (incl. 7176 effective pixels)
Pixel size: 32 x 46.9 um
Digital image processor
A/D Shading
processing
conversion
F-4-25
Chapter 4
Controller
0017-2636
4-13