Ricoh Aficio SP C400DN Hardware Manual page 179

B
Remove misfed paper slowly.
If you cannot find the misfed paper, look inside the printer.
C
If a misfeed occurs in the output area of the fusing unit, open the output
cover by pulling back the levers marked "A1" (left and right on the fusing
unit's upper side).
When the Paper Misfeed Message Appears (Cover A)
AQC171S
AQC174S
AQC175S
10
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