Solutions
Select Fax > Fax Settings > Scan Settings > Original Type, and then change the setting. When the original you are sending contains text and images, set this to Photo.
Solutions
If you do not know the performance of the sender’s fax machine, set the following before sending a fax.
Select Fax > Fax Settings and then make the Resolution setting to set the highest quality image.
Select Fax > Fax Settings and then enable Direct Send.
Note that if you set Resolution to Super Fine or Ultra Fine but you send the fax without enabling Direct Send, the fax may be sent at a lower resolution.