Canon NP6551 Operator's Manual page 203

Return the duplexing transport unit to its original
3
position.
Follow the directions in the display, pull out the
4
indicated paper drawer and remove any jammed
paper.
Return the paper drawer to its original position.
5
When "Press the Start key" appears in the touch
panel display, press the
remaining copies.
MEMO: ●
If the paper jam message remains in the display,
follow the directions in the display and check again
for any jammed paper.
key to make the
Start
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