Ricoh 917F Operating Instructions Manual page 1756

5. Troubleshooting When Using the Scanner Function
Problem
The scanned image contains
white spaces.
5
78
Cause
If you scan originals using
functions other than the
network TWAIN scanner
function, certain paper size
and resolution settings may
produce scanned images that
are larger than the specified
size because of margins
being added to the sides.
Solution
Scanning at a higher resolution may
reduce the margins.