Q: LATEST EL CAPTAIN UPDATE(11.6) HAS BEEN INSTALLED ON MY MAC, HOWEVER NOW I CAN'T INSTALL MY PRINTER DRIVERS - HOW CAN THIS BE RESOLVED?

Visit the website for your printer and search for v10.11 El Capitan compatible drivers.

All I did was click the printer icon on the dock, open the printer, clicked the printer there when it opened in Prefs, and it went straight to a download of updated drivers, and it installed whatever I needed -- on 3 iMacs on 2 out of date printers that HP is not even supporting.

HP Printer Drivers v3.1 for OS X

check your printer is supported

Please don't type in all capital letters. It is harder to read and is considered shouting on the Internet. If you haven't done so already, try resetting the printing system.

Reset the printing system - OS X El Capitan