1. Pull out the extension of the finisher's shift tray.
  2. Attach the relay tray [A].

  3. Attach the extension tray [A].

  4. Use the shift tray emergency stop switch of the finisher to lower the shift tray, and then attach the support plate [A] provided with this option.
    Raise the shift tray by using the shift tray emergency stop switch after attaching this support plate.

    Insert the pins [A] of the support plate into the holes [B] in the shift tray.