![background image](http://html.mh-extra.com/html/canon/imageformula-dr-2580c/imageformula-dr-2580c_service-manual_62944058.webp)
2-32
COPYRIGHT © 2005 CANON ELECTRONICS INC. CANON DR-2580C FIRST EDITION APR. 2005
CHAPTER 2 FUNCTION & OPERATION
2. Configuration
1) Reading
System
The color CCD sensor with 5340 picture
elements
×
4 lines is used as an image
sensor. The size of a picture element is
7
µ
m
×
7
µ
m. And the picture elements are
arranged with 7
µ
m pitches. The length of
a line is about 37.4 mm.
* CCD
censor
RED
GREEN
BLUE
GRAY
Figure 2-701
The unit, which consists of the CCD PCB
with the CCD sensor, 4 mirrors, lens, and
xenon lamp as a light source, is called
“optical unit.” Since this unit is adjusted
before the shipment from a plant, do not
disassemble the unit except for the lamp
in the field.
The images of a document are reduced by
the optical unit. And then, the 600dpi im-
age data with 5104 effective picture ele-
ments (length: 210 mm) are output from
the CCD sensor.
The shading plate for shading correction
is slipped between the document board
glass and cover.
Document board glass
Mirror 3
Mirror 2
Mirror 1
Mirror 4
Optical unit
CCD
Lens
Lamp
Shading plate
Figure 2-702
Summary of Contents for imageFORMULA DR-2580C
Page 4: ......
Page 8: ......
Page 26: ......
Page 66: ......
Page 92: ......
Page 94: ......
Page 102: ......
Page 104: ......
Page 124: ......
Page 126: ......
Page 128: ......
Page 130: ...0305TG ...
Page 139: ...COPYRIGHT 2005 CANON ELECTRONICS INC CANON DR 2580C FIRST EDTION APR 2005 ...
Page 158: ...COPYRIGHT 2005 CANON ELECTRONICS INC CANON DR 2580C FIRST EDTION APR 2005 ...
Page 160: ...vii 0405TG ...