Paper recommendations > 11If fitted, tray 2/3 may be removed and replenished while the machine is being fed from tray1. Tray 1 cannot be removed while the machine is being fed from tray 2/3, because partsof tray 1 are used to guide paper fed from tray 2. This also applies to tray 2 when paper isbeing fed from tray 3.M ULTI PURPOSE TRAYThe multi purpose tray can handle the same sizes as the cassette trays but in weights upto 220g/m². For very heavy paper stock use the face up (rear) paper stacker. This ensuresthat the paper path through the printer is almost straight.The multi purpose tray can feed paper widths as small as 64mm and lengths up to 1320mm(52 Inches) (banner printing).For paper lengths exceeding 431.8mm use paper stock up to 128g/m² and the face up(rear) paper stacker.Use the multi purpose tray for printing on envelopes and transparencies. Up to 50 sheetsof transparencies or 10 envelopes can be loaded at one time, subject to a maximumstacking depth of 10mm.Paper or transparencies should be loaded print side up and top edge into the printer. Donot use the duplex (two-sided printing) function.FACE DOWN STACKERThe face down stacker on the top of the printer can hold up to 250 sheets of 80g/m²standard paper, and can handle paper stocks up to 176g/m². Pages printed in reading order(page 1 first) will be sorted in reading order (last page on top, facing down).FACE UP STACKERThe face up stacker at the rear of the printer should be opened and the tray extensionpulled out when required for use. In this condition paper will exit via this path, regardlessof driver settings.The face up stacker can hold up to 100 sheets of 80g/m² standard paper, and can handlestocks up to 220g/m².Always use this stacker and the multi purpose feeder for paper stocks heavier than 176g/m².D UPLEX UNITThis option provides automatic two-sided printing on the same range of paper sizes astray 2/3 (i.e. all cassette sizes except A6), using paper stocks from 64-128g/m².NOTE:The duplex unit comes as standard with dn & dtn models.