You can adjust the density level to match the darkness of your original before sending a fax. You can also adjust the background density for originals such as colored paper.
1.
Press [Fax].
2.
Specify the destination → press [Options] → [Density].
3.
Press 
or 
to adjust the density for the original → press [OK] → [Close].
or to adjust the density for the original → press [OK] → [Close].