I forgot to include the link to the HP Webpage for the drivers for the
LJ2550n:
http://h20000.www2.hp.com/bizsupport...wnload.jsp?pro
dNameId=388399&lang=en&cc=us&taskId=135&prodTypeId=18972&prodSeriesId=3
88394&refresh=true
Are you trying to get the printer working connected directly to the PC
by USB I imagine or via a network connection?