Computer is printing 2 pages per sheet
 

I have a network of computers and two printers, one xerox one HP, all
the printer settings are the same on all stations, but on one station
any print job (except the test page) prints as if it's printing 2
pages per sheet/side. So a single page worth of material gets prints
on half of an 8.5x11 sheet, when it should fill the whole sheet. This
happens when it tries to print to either printer, but no other station
prints this way.
Is there any setting that I'm missing that I can change? Is it
something on the printers themselves that I need to change?