Epson Stylus 1500 Reference Manual page 19

6. Load the stack of paper, printable side down, all the way
into the sheet feeder. Make sure the right edge of the stack
is against the right edge guide. Next, slide the left edge
guide against the left edge of the paper.
Note:
The sheet feeder can hold up to 100 sheets of 17-lb (64 g/m
paper. Do not load paper above the arrow mark, which is located
on the inside surface of the edge guide.
7. Adjust the rear edge guide to match the length of your paper.
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Paper Handling
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