CHAPTER 3 DISASSEMBLY & REASSEMBLY
2. Reading Holder (Front)
Note:
This component has the reading glass
and white reference sheet mounted
on it. This component should not be
disassembled unless necessary
because once the component has
been removed, there is a risk of dust
getting inside the reading unit. When
disassembling this component, take
care to prevent dust from getting
inside. Furthermore, take care to
avoid touching the inner side of the
glass and the surface of the lens
array.
1) Remove the reading unit (front).
2) Place the reading holder
{
1
at the
bottom and unhook the 8 pairs of fitting
parts
{
2
(4x2) using a tool with a thin flat
tip to remove the case
{
3
. Then remove
the CIS unit from the reading holder
{
1
.
Note:
Be careful not to damage the hooks
when unhooking the fitting parts. Once
you have removed the case, the CIS
unit can also be removed, so hold it to
avoid dropping it.
Figure 3-403
Notes on assembling
Push until all of the fitting parts are
securely fastened. There should not be
any raised parts and gaps.
3. Reading Unit (Rear)
Note:
The reading units (front and rear)
have different holder shapes.
1) Open the front unit, insert a tool with a
thin leading edge approximately 4 mm
wide diagonally into the gap
{
1
on the
right side. Spread open the hook inside
with the tool, and then push it into the
side of the reading unit (rear)
{
2
to lift it
up slightly.
Figure 3-404
The sectional view of the fitting pats
Figure 3-405
2) Pull out the reading unit (rear)
{
1
even
further, and then unhook the fitting parts
on the opposite side and pull the reading
unit out towards you.
Note:
Do not pull it excessively because the
cable is connected to it.
Hook
Tool
Reading unit
3-14
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©
CANON ELECTRONICS INC. 2011 CANON DR-C125 FIRST EDITION
