Epson EPL-6100 Reference Manual page 27

Note:
Lift the paper guide slightly to move it.
2. Fan a stack of paper and tap it on a flat surface to even the
edges, and set the paper into the MP tray with the printable
surface facing up. Then adjust the paper guide to the size of
the paper, and then replace the MP tray cover.
Note:
Make sure to load the paper as far as it will go inside the MP tray.
Paper Handling
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