Oki C610dtn User Manual page 82

15. Pull out the paper tray and ensure that all paper is stacked
properly, is undamaged, and that the paper guides are
properly positioned against the edges of the paper stack.
When satisfied, replace the tray.
16. Finally, close the top cover and press down firmly so that the
cover latches closed.
When the jam has been cleared, if Jam Recovery is set to ON in
the System Adjust Menu , the printer will attempt to reprint any
pages lost due to paper jams.
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– C610/C711 User's Guide