High Capacity Stacker; Delivered Sheets Are Severely Curled - Ricoh Pro C651EX Troubleshooting Manual

5.4 High Capacity Stacker

5.4.1 Delivered Sheets Are Severely Curled

Cause:
Sheets with downward curls 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, so that the
delivered sheets may be curled when loaded.
This is likely to occur if:
• A4 or larger coated paper weighing up to 135 g/m
<How the problem occurs>
(1) Downward curled paper is delivered to the stacker tray.
Stacker shift tray
(2) The leading edge of the sheet, while delivered, causes strong paper-to-paper
friction against the top sheet of the stack. As there is no air gap between the
sheets, and the delivered sheet becomes stuck.
Stacker shift tray
Paper exit
Paddle
Paper feed direction
Paper exit
Paddle
Paper feed direction
2
(50 lb. Cover) is used.
CEZ573
CEZ574
139