Can't download or print PDF files

Hi, I'm running Zorin 17 on my HP Pavilion Pentium Processor and I have a Brother MFC L2710 DW series (No Color) Laser Printer.
I think that beginning with the install of 17 I can't download or print PDF files. Wondering if anyone else has experienced this issue and , if so, how did you fix it.

Hi Rushmore,

Are the drivers installed?

swarfendor437 Thank you so much for that website.
I did have 1 Brother driver installed it was working before . I also had a CUPS driver and another Brother driver that was for a differant but quite similar machine and it worker up until 17.
When I got to your driver site I made it up to Modify but at that point the site wanted a login. So I went without the mods and so far it's flawless.
Both I and the IRS are in your debt. Thanks again. Hank B. West Paris, Maine