Long Sheet Tray-C
When printing on paper whose length along the paper feeding direction is 487.8 mm or longer, attach the "Long Sheet Tray-C" on the output side (to the finisher).
Extension output tray
This tray is designed to be attached to a finisher. Attach it to the upper tray (Tray A) of the "Staple Finisher-AG" or "Booklet Finisher-AG."
For the "Staple Finisher-AC" and "Booklet Finisher-AC," attach it to Tray C.