I have used the duplex (2-sided) function when printing, and it works flawlessly

WF-3820: Smaller 2.7" touch screen display, slower print speeds, can only do single-sided scanning, has one 250-sheet paper tray

Larger 4.3" touch screen display, faster print speeds, can only do single-sided scanning, has one 250-sheet paper tray

2-Sided Printing, 35-Page ADF, 250-sheet Paper Tray and 2.7" Color Touchscreen, Works with AlexaThe installation is easy I mostly use the wireless option when print

The print was good however, it uses tons of ink

Now all the printing is ruined, streaky and light although there is plenty of ink

I also tried the mobile printing using the app and that works well too over wifi

We do limited schoolwork printing, and light home printing

All models support duplex printing and have a built-in fax machine.

This smart print is one of the best that I have used

Larger 4.3" touch screen display, faster print speeds, can do double-sided scanning, has two 250-sheet paper trays

Detail printing good enough