2DC
2-1-4
2-1-2 Original scanning system
The scanner unit consists of the image scanning unit (ISU) for main-direction scanning, and drive part for traveling the
ISU unit to sub-direction.
Figure 2-1-4 Scanner unit
1
Original holder
2
Scanner upper frame
3
Scanner lower frame
4
Contact glass
5
DP Contact glass
6
Scanner rail
7
Scanner motor mount
8
Tension pulley mount
9
Scanner belt
0
Scanner motor
!
Tension pulley
@
Scanner gear 45/18
#
Scanner gear 39/22
$
Scanner shaft
%
ISU housing
^
CCD image sensor
&
Exposure lamp
*
Exposure lamp mount
(
CCD board
)
ISU lens
⁄
Mirror A
¤
Mirror B
‹
Mirror A
›
Scanner home position sensor
1
5
8
2
!
3
›
(
¤
⁄
^ &
%
*
4
$
) ‹
6
9
#
@
7
0
