CHAPTER 3 DISASSEMBLY & REASSEMBLY
2. Stop Cam Drive Unit
3. Upper Drive Unit
1) Remove the PCB unit.
1) Remove the stop cam drive unit.
Refer to “1. Sub PCB”.
2) Unhook the 4 pairs of fitting parts
{
1
,
then remove the document stopper unit
{
2
. Then, slide the separation float unit
{
3
to the right side and unseat the axle
(2 locations) from the holes in the base
to remove. Next, unhook the 3 pairs of
fitting parts
{
4
and remove the pickup
arm unit
{
5
.
2) Unhook the 4 pairs of fitting parts
{
1
using a tool, and remove the cam on the
left side of the stop cam drive unit
{
2
while removing it from the bottom of the
pickup arm unit
{
3
.
Note:
The torsion spring that fits into the
document stopper unit may become
detached.
Figure 3-204
Notes on assembling
The cam should be mounted between
the pickup arm unit and the document
stopper unit. All of the fitting parts should
be fully seated. There should not be any
raised parts.
Figure 3-205
3) Unhook the 4 pairs of fitting parts
{
1
using a tool, and remove the gear on the
right side of the upper drive unit
{
2
while removing it from the gear of the
separation float unit
{
3
.
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CANON ELECTRONICS INC. 2011 CANON DR-M160 FIRST EDITION
3-5