Using The Mp Tray; Selecting The Mp Tray As The Paper Source - Epson EPL-N1600 Reference Manual

The printer can feed paper from any of three sources: the standard
paper cassette tray, the MP Tray, or the optional 500 sheet lower
cassette unit. To load paper from standard paper cassette tray, see
your Getting Ready! guide. To load paper in an optional lower
cassette, see page 3-11.
Paper should be high quality and relatively smooth with a
weight between 60 and 105 g/m
paper cassette tray and optional 500 sheet lower cassette unit, or
between 60 and 190 g/m
The printer is extremely sensitive to moisture. Be sure to store
your paper in a dry environment.
Use of colored paper is acceptable, but coated paper should
be avoided.
You may use paper with preprinted letterheads, provided
that the paper and ink are both of laser printer types.

Using the MP Tray

The MP tray is used for making short print runs on paper types
and sizes which are not loaded in the paper cassettes, or for
printing other media such as transparencies, labels, or envelopes.

Selecting the MP tray as the paper source

There are two ways to selelct the source of the paper used by the
printer:
Using the printer driver from Windows
Using the SelecType mode
2-2
Paper Handling
2
(16 to 28 lb) for the standard
2
(16 to 51 lb) for the MP Tray.