When printing to a Brother series printer in Foxit PhantomPDF/Foxit Reader,the options "Print on both sides of paper", "Flip on long edge" and "Flip on short edge" are all greyed out,but the printer itself supports the duplex printing. How to make the options to print on both sides to be clickable,so that I could print print two sides to the brother printer in Foxit PhantomPDF/Foxit Reader?
The situation may be caused by the duplex print option is set to Not Installed in your brother printer properties settings.You could change duplex print option to Installed and go back into Foxit to have the double-sided related options clickable again.
To change duplex print option to Installed,please do the followings:
Please go to Control Panel >Devices and Printers to see all of printers that connect to your computer, right click on the mentioned brother printer in the printers list and select Printer Properties option in the pop-up context menu to open brother printer Properties dialog box,click on Device Settings tab in the opened brother printer Properties dialog box,then turned the Duplex Unit: to Installed.