Epson Perfection 636U User Manual page 47

If the edges of the document are
not scanned . . .
Check the position of your source
document. Adjust your document's
position so that the image is within
the glass area.
42
If your image scans at an angle . . .
Check the position of your source
document. It may be placed at an
angle on the document table. Align
it so the horizontal and vertical edges
are carefully aligned with the scales
on the top and side of the document
table.