Canon Color imageRUNNER C3200 Sending Manual page 304

NOTE
If an original with many colors is scanned, the compression level is determined by
taking into consideration the data size and the number of colors, according to the
selected image level. However, if the original is in monochrome or has few colors, it
does not matter which image level you select.
5
Press [Done] repeatedly until the Send Basic Features screen
appears.
PDF Compression Priority
8
8-25