1. Open the right door wide (Arms [A] [B]).
  2. Pull out the 1st paper tray [A].

  3. Remove the screws of the 1st paper feed unit [A] and the stopper of the paper feed guide plate [B].

  4. Press the tab to release the lock, and remove the paper feed guide plate [A].
  5. Remove the 1st paper feed unit [A].