Canon ImageRunner iR8500 Series Service Manual page 301

(rear)
[2]
9) Detach the mirror positioning tool.
10) Reverse steps 1) through 4).
5.4.17.2 Adjusting the Tension of the Scanner Drive
Cable
When routing the scanner drive cable, be sure to have a mirror
positioning tool (FY9-3040-000) ready.
1) Remove the ADF.
2) Remove the copyboard glass.
3) Remove the control panel
4) Remove the rear cover and the rear upper cover.
5) Remove the inverter PCB unit .
6) Move the No. 1 mirror base to where the cable fixing [1] of the No. 1
mirror base is in view through the hole in the machine side plate.
7) Fit the scanner cable on the pulley and the hook as indicated.
[1] [2]
F-5-162
0008-8007
[1]
Front
F-5-163
[1]
Rear
F-5-164
[5]
[7]
[6]
8) Fit the mirror positioning tool [1] between the No. 1 mirror base and
the No.2 mirror base; then, fit the pin [2] attached to the mirror
positioning tool.
(front)
[2]
(rear)
Chapter 5
Steel ball [4]
Wind 7 times.
Put the steel ball in the hole of
the pulley.
Wind the cable so that the gap,
if any, is minimum.
[3]
Tighten
temporarily.
[8]
[2]
[1]
F-5-165
[1]
F-5-166
[1]
[2]
F-5-167
5-49