QMS CrownCopy User Manual page 37

Default Horiz. (in x 100) = 850; a width of 8.5 inches
Vert. (in x 100) = 1100; a length of 11.00 inches
Note The image is cropped from the right and bottom sides of
the page (in other words, from the left and bottom of the
scanner bed), so if you place this 8.5" x 11" image on the
scanner bed
and crop it vertically by 400 you'll get this:
If you crop it horizontally by 550 , you'll get this:
The more you crop out of a scan, the less time it takes to
process and print. For example, if you need to copy a
photograph, you can get faster copies by placing it at the
upper right corner of the scanner bed and cropping the
scan to fit the dimensions of the photograph (the
scanner bed has rulers that mark inches).