Epson 836XL - Manual (Page 98)

Troubleshooting Page 98
4 Turn the grid document guide over and lay it on the
document table with the oval hole on the right.
5 Set the adjust pin to the angle you selected in Calculating
the Adjustment Angle , if necessary.
6 Close the document cover and scan as described in
Scanner Basics .
Using the Clear Document Guide
The clear document guide can also be used to hold light
originals against the document table; this will prevent the
original from being pushed out of alignment by air currents as
the document cover is closed.