hello, you might try logging in to the unit as admin (admin and 1111), then select machine status, tools, device settings, output then output location.
I am looking at a similar product to the 5855 and it appears to let you from here direct fax, copy and prints to different locations.
good luck!
We just got this new printer and the faxes print amongst all of the other printed documents and I was hoping to set it up like our last machine so that it prints all incoming faxes in the top tray. I have read the online admin manual etc. and can't figure it out. Please help :)