bizhub c203 tray 2 won't close

A Bizhub c203 tray 2 --won't stay closed. When pushed in comes right back out.. Tried comparing with tray rear side but did not see anything that was obviously different. I took the tray to another customers office and it closed properly which mean problem inside machine. Don't know machine well.I was told that a couple of the employees tend to shove the trays in instead of gently closing. Could something like a magnet have been knocked out of place?
Is it supposed to be magnetized at rear? I tried looking in parts manual but I didn't notice anything. I know this is probably a silly and easy thing when you know the machine well, which i don't, and I am a little embarrassed but I have to fix this machine. Frank/ActionPhotocopy