Contact Image Sensor (Cis) - Canon iR4570 Series Service Manual

Chapter 5

5.3.2 Contact Image Sensor (CIS)

5.3.2.1 Outline
iR2270 / iR2870 / iR3570 / iR4570 / iR3530
The machine uses a contact image sensor (CIS) to expose and read an image, and the image is read on a line-by-line
basis.
Item
LED
Light guide
Rod lens array
CCD array
5-12
T-5-4
Description
serves as the source of light used to expose the original.
directs the light from LEDs to the entire length of a single
image line of the original.
collects light reflected by the original.
collects the reflected light coming through the rod lens
array.
0006-5927