Install Banner Tray Unit MK-740 (output extension tray) into Finisher FS-531 / Finisher FS-612.
Extend the tray extension of the sub tray.
Insert the brackets (A) of Banner Tray Unit MK-740 (output extension tray) into the slots (a) of the sub tray.
Adjust the position and insert the brackets (B) of Banner Tray Unit MK-740 (output extension tray) into the slots (b) of the sub tray.
Extend the tray extension of Banner Tray Unit MK-740 (output extension tray).