Why won't paper feed properly?

I recently purchased a Dell s2830dn printer to replace a Dell b3460 that I had used in my home office for the last 10 years. I really like the Dell printers so I was excited when I found a local business that had this s2830 which was still brand new in the box and they had a price on it I could not refuse. I set it up in the same manner as I had had my previous Dell- I purchased 2 auxiliary paper trays so that I could hold a full ream of legal paper and a full ream of letter in addition to the incorporated tray 1 which holds ½ a ream. The printer seems to be functioning properly except that whenever I try to set tray 2 as the default and pull from that tray for letter size paper it will invariably tell me there is a paper jam. When I remove tray two I will find a page partially fed into the printer from the bottom side but it is not getting completely through tray one. I don't see any obstructions and if I print from tray 3 (which is on the bottom of the stack) then paper is fed into the printer and the printer works properly, but when printing from tray 2 it will always fail. Can anyone help me figure out why paper is not properly being picked from tray 2 and fed into the printer?