5050 it only jams when you offset sort, all other functions work, when you offset sort the first page gos into sorter then the tray go:s down about half way, paper stops before the middle tray, machine has been updated to current levels, 906 sim, still same thing, all other sort options work fine, any help please thank you.??????????????

Which finisher is connected to this copier?

df 710

check spring on the solenoid