Xerox 2400 Series User Manual page 111

Scanning from the TWAIN Interface
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7. If other tests are checked, click in their boxes to uncheck them.
8. Click Next.
The next window tells you to put a page into the scanner.
9. Place an item face down on the glass. Align the edge of the
item with the arrow at the upper-left corner of the glass and
close the lid.
10. Click Next.
Xerox Scanner User's Guide