The envelope stack is quickly pressed before filling the letter trays in accordance with USPS regulations (DMM). The exchange of letter trays occurs automatically with an
exchange speed of up to 1,800 boxes/h (2.0 sec). The tray exchange unit can handle MM and EMM letter trays. A unique feature is its ability to intermix one and two foot
letter trays depending to the presorting need. As an option, a postcode label printer can be integrated into the sima, which applies a tray label to the letter tray.
The filled letter trays are temporarily stored on a large buffer section. The Sequence Repair System (SRS), which marks or separates mails that do not belong to the actual mail sequence, comes standard on this machine. The sima can instruct the operator
what to do with the marked or separated mail. This SRS enables a constant production speed even when sequence problems appear.