Brother Tt-4000 Tower Paper TrayDescriptionSpecificationsShipping The Brother TT 4000 tower paper tray option includes 4 x 520 sheet capacity trays and a stabilizer with wheels Add the TT 4000 to a compatible model to automatically print on letter or legal sized paper without having to manually load paper trays for printing mixed paper sized documents This option is ideal for high volume, large workgroups that need multiple trays to customize their workflow such as storing different