1002 Jam Code Due To Broken Spring Of The Escape Inlet Flapper - Canon imageRUNNER ADVANCE 8500 series Troubleshooting Manual

1002 Jam code due to broken spring of the escape inlet flapper

[Symptom]
1002 jam may occur with the machines earlier than the following countermeasure cut-in serial numbers in factory.
-1002: delivery sensor (PS102) delay jam
[Cause]
When a load is applied by any factor to the tension spring [2] which is lifting the escape inlet flapper [1], the tension spring is
broken [a], and the escape inlet flapper descends and blocks the feed path toward the stack tray (processing tray). If paper is fed
in this state, it is caught by the escape inlet flapper, resulting in the above-mentioned symptom.
[Remedy]
When the above-mentioned symptom occurs, check the tension spring of the escape inlet flapper by following the steps below.
If the tension spring is broken, prepare the new-type tension spring (FE4-7044-010) and replace it by following the steps below.
[Reference] Work procedure is different depending on the model.
a) In case of Staple Finisher-V1/-V2 and Booklet Finisher-V1/-V2
a-1) Open the front cover [1], and raise the jam clearing guide (upper) [2] and the jam clearing guide (lower) [3] in the arrow
directions.
[Note] If the punch unit is installed, shift the punch unit before starting the work.
a-2) Check the tension spring [2] attached to the escape inlet flapper [1].
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