Plain Paper | Network   UF-490 Laser Fax, 20-page ADF, 60 page (1MB) memory, 3 second transmission speed, 150-sheet paper capacity, 5 ppm engine         UF-790 Laser Fax, 50-page ADF, 120 page (2MB) expandable memory, 2.8 second quick scan, 6.5 ppm engine         UF-890 Laser Fax, 70-page ADF, 120 page (2MB) expandable memory, 1.7 second quick scan, 10.2 ppm engine         UF-990 Laser Fax, 70-page ADF, 0.9 second quick scan, 10.2 ppm engine, 200-station Autodialer, Dual-line communication capability         UF-9000 Laser Network Fax with built-in 10/100 Ethernet adapter, 2.7 second scanning speed, USB, 50-page ADF, 19 ppm copier/printer