Check the send-fax resolution settings, Check the image-adjustment settings, Optimize fax quality for text or pictures – HP LaserJet Enterprise 700 color MFP M775 series User Manual

Check the send-fax resolution settings, Check the image-adjustment settings, Optimize fax quality for text or pictures | HP LaserJet Enterprise 700 color MFP M775 series User Manual | Page 294 / 332