Canon ImageRunner iR8500 Series, Service Manual, Page: 395 / 1122

Chapter 8
8-55
3) Pick the wire cleaner with small pliers, and free the hook with your
fingers.
F-8-135
8.9.18.5 Stringing the Charging Wire
0007-2702
iR105i/iR105+ / iR9070
As a rule, the charging wire (except the grid wire) may be strung in the
same way for all charging assemblies. The following uses the primary
charging assembly as an example:
1) Remove the 2 screws [1], and detach the shielding plate (left, right)
[2] of the charging assembly.
To prevent deformation (slack) of the primary charging assembly, be
sure to work on the left and right shielding plates separately. (Do not
loosen the screw for the left/right shielding plate.)
2) Remove the wire cleaner.
F-8-136
For other charging assemblies, remove the lid (2 pc.)
3) Free a length of about 5 cm from a charging wire reel (wire dia. of
0.06 mm), and form a loop at the end about 2 mm in diameter.
F-8-137
MEMO:
To form a loop, wind the charging wire once around a hex key, and twist
the key 3 to 4 times.
4) Cut the end (excess) for the twisted charging wire.
5) Hook the loop on the stud.
6) Hook the charging wire on the charging wire positioner at the rear,
and hook the charging wire tension spring on the charging wire, and
twist it.
F-8-138
7) Cut the excess of the charging wire with a nipper.
8) Pick the end of the charging wire tension spring with tweezers, and
hook it on the charging wire terminal. In the case of the pre-transfer
charging assembly, hook the spring at the front.
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Be sure of the following:
- The charging wire is free of bends and twists.
- The charging wire is in the bottom of the V-groove of the charging wire
positioner.
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9) Fit the cushion to the front of the charging wire. (except for primary
charging assembly)
10) Mount the shielding plate (left, right).
For other charging assemblies, fit the lid (2 pc.).
After stringing the charging wire of each charging assembly, check to
make sure that the length of the tension spring is as follows:
F-8-141
[2] [1] [1]
Stud
Reel
Charging wire
Charging
terminal
(front) (rear)
Grid side
(correct) (wrong)
A
Primary
charging
assembly
Pre-transfer
charging
assembly
Transfer
charging
assembly
Separation
charging
assembly
A=12.0±1mm
A=12.0±1mm
A=12.0±0.5mm
A=12.0±0.5mm