4.Troubleshooting for Peripheral Units
825
High Capacity Stacker
Delivered Sheets Are Severely Curled
Cause:
Curled sheets can cause strong friction at their leading edges. This may result in paper misfeeds.
Sheets will not be ejected completely and the trailing edges will be left inside the paper exit. If this
happens, other sheets may slip under the delivered sheets, causing the delivered sheets to be curled.
Concave curl. Paper exits with curve down.
Convex curl. Paper exits with curve up.
Here is a detailed description of how this problem can occur.
1. An uncurled sheet is delivered to the stacker shift tray.
2. Strong friction occurs at the trailing edge so that the paddle cannot pull the sheet back and align
the edges of the sheet with those of the stack.
3. The paper edge stopper fails to push back the protruding leading edge and align the sheet as
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