Depending on the cause of the problem, do one of the following:
Coated or another type of unsupported paper is loaded in the machine's tray.
Load paper not supported by the machine's paper tray (Trays 1-3) in the wide LCT or another paper tray that supports the paper.
For details about the size and type of paper that can be loaded in the paper trays, see "Recommended Paper Sizes and Types", Paper Specifications and Adding Paper.
Sheets are stuck to each other.
Fan the paper before loading it to loosen the sheets.
For details about fanning the paper, see "Fanning the Paper", Paper Specifications and Adding Paper.
The edges of the sheets are rough.
Turn the sheets the other way up or smooth the edges before loading the paper.