Installing a printer on MInt is a fairly easy process.
GO to google and type in the printer you want (from brother).
Lets say I want Brother MFC 5460-CN printer.
I'd type in Google: Brother MFC 5460Cn printer driver.
TO see all the printers to download, go here http://welcome.solutions.brother.com/bsc/public_s/id/linux/en/download_prn.html
Step 2) CLick on the printer you want.
Download both LPR and cupswrapper drivers in DEB Format.
Step 3) Install both of them. Should be a fairly easy process, just by double clicking it.
Step 4) In the start menu, type in 'Print", and you will see Printer Configuration. Click it.
Step 5) CLick on add new printer.
STep 6) Select the first one. (APp/SOcet)
STep 7) I didn't type anything in the text box but my printer still works. Click forward.
STep Find brother, Click forward.
STep 9) Look for your printer with "CUPS" next to it. eg MFC 5460 CUPS.
STep 10) SElect the recommended driver and click on "FOrward" and then click "ok".
HOpe this helped.