Avision AV880C - Manual (Page 31)

4-7
4.2 RESOLUTION CONTROL
A good control of the resolution results a satisfactory detail of an
image that scans. The resolution is measured by dots per inch(dpi).
Normally, the greater the dpi number, the higher the resolution and
the image file size. Be aware that the greater resolution takes more
time, memory and disk space, therefore, up to a certain degree of
dpi, the resolution will not visually be improved, on the contrary, it
makes your files more unmanageable.
Figure 4-5 Resolution Control
Scaling: You can lock the X-Y scaling factor to keep the
ratio of the axis. Or you can use a different scaling
factor for each axis.
Unit: A reminder of the measure system in use. By clicking
on the abbreviation you can change the measure
system.