Windows 10: Double sided printing

I have an ASUS laptop running Windows 10. I'm trying to print double sided on a Brother 9330CDW. There is no option to print double sided and in the settings it says Duplex Unit not installed (this is greyed out so I cant change it). I can print double sided on the same printer when using an Apple iMac. Any ideas?

:)

 

double-sided printing

there is no option for double-sided printing in Internet Explorer. I need to know how to command the print to be double sided at times, can someone help? What I am trying to do is print the lectionary from a web site but it needs to be double-sided. How
do I do so as there is no option in page set-up or anywhere else in either engine?

 

double-sided printing

Yes, I print double sided all the time. But I am trying to print it right from the web page. Isn't there an option for printing it double-sided? There is in Chrome and in Edge, but I cant find one in IE. Where would it be located at?

 

Printing Double Sided

Hello. I am not able to print my pdfs double sided. I have a Windows 10 laptop and when i open the printing app, there is no option for double sided. Please help me out.