Ricoh Nashuatec D440 Operating Instructions Manual page 56

DO'S AND DON'TS
Document Feeder (Option)
While originals are fed from the original table to the exposure glass, do not pull
out the originals.
Do not lift the document feeder until the last original has been completely fed out.
Do not press down or hold originals after inserting them.
Do not press any parts of the document feeder strongly.
Finisher (Option)
Do not remove papers from the shift tray while copying/printing.
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