Clean the paper feed belt and paper feed rollers in the interposer. The procedure is explained using the interposer upper tray. The procedure is the same for the lower tray.
- Remove the loaded paper.
 - Open the upper cover, and then detach the paper feed unit.
 - Pull it out slightly, release the metal shaft, and then detach it.
 - Clean the paper feed belt and paper feed rollers in the detached paper feed unit.
 - After cleaning, restore the machine so that it resumes operation.