Canon imageRUNNER ADVANCE 8500 series, Troubleshooting Manual, Page: 17 / 95

Faulty Feeding
Inconsistent folding position when using booklet mode with a
small number of sheets due to deflected paper inside the
processing tray (Booklet Finisher-V1/V2/Y1/AA1)
[Symptom]
When using the booklet mode with a small number of sheets in the machine earlier than the following countermeasure cut-in
serial numbers in factory, the folding position ([a] and [b]) of the output products [1] may be displaced and inconsistent as shown
in the Figure below. The arrow indicates the feeding direction.
[Cause]
When the paper fed from the feeding unit is stacked on the saddle processing tray, the paper is deflected inside the processing
tray, resulting in the above-mentioned symptom.
[Remedy]
If the above-mentioned-symptom occurs, prepare the new-type roller guide [1] (FL1-5052-000), the new E ring (XD2-1100-325)
and the saddle stopper assembly [2] (FM1-R635-000) which was newly set up as a service part to replace by following the
procedure below. This procedure starts with the step after the booklet finisher is separated from the copier.
1) Step to replace the roller guide
1-1) Referring to "Pulling Out the Saddle Unit (Service Position)" of Service Manual, pull out the saddle unit.
1-2) Remove 1 screw [1] on the rear side of the saddle unit.
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