Xerox 700 will print through the finishers portrait, but not landscape. When printing landscape, the paper will halfway enter the interface module and stop before the rollers will pick up. Not sure if there is another dirty sensor I can't find. Please help. Trying to get the new machine working so I can test the rest of it before the month is up and to get it certified by Xerox to get it on a service plan. Thanks in advance for your help.