PostScript v. HBP (Host Based Printing) Drivers

The 1720dn printer ships with two (2) sets of drivers, one of which is a PostScript driver and the other of which is an HBP (Host Based Printing) driver.  Both of these drivers install by default, yielding two (2) installations of the printer, one with the PostScript driver in place and the other with the HBP driver in place.

 

What is the difference between these 2 drivers and, most importantly, when should I use one and when should I use the other?

 

If you wish to contact me directly, my email address is cwb1014@gmail.com.

 

Many thanks in advance for any assistance that anyone can offer here.