I just saw a setting that has me a bit confused. I'm printing a document with pictures embedded within it and I was looking for a setting to lighten the print output since the draft had images to dark. I found the correct setting tab but there is another setting that has me a little confused.

That setting is: Air Pressure [Low / High]

Now from my days in large format printing, the only time I really dealt with air pressure and printing was for suction in large inkjet printers to keep the paper "stuck" to the printing deck so it was perfectly flat and even. Is that the same thing thats going on here? I didn't do much laser printing when I was there so Im not as technically inclined here.