Are you getting an error message that says, "REMOVE MISFEED INTERNAL PATH" after changing the MAINTENANCE KIT on your Ricoh 4100nl?
-unplug printer
-remove two screws that hold the left panel on (one in back & one on left side after opening up the front).
-you'll see 2 silver motors about the size of a quarter.
-the lower one has a metal rod in the middle.
-push it all the way in. It has to be all the way flush with the rest. It came loose when replacing the paper feed roller.
If that doesn't work, I usually trash it. Probably thrown away about 10 so far. They don't make them like they used to. Still better quality than when I was using Dell/Lexmark products.