Envelopes - Epson EPL-5900L Reference Manual

Envelopes

You can load up to ten envelopes into the MP tray, depending on
the envelope thickness (70 to 105 g/m²). Load envelopes with the
flap side down and short edge first.
To print on envelopes, choose Thick Narrow in the printer driver's
Paper setting found in the Basic Settings menu.
The printing quality on envelopes may be irregular because
different parts of an envelope have different thicknesses. Print one
or two envelopes to check the print quality. If the printing is too
light, adjust the print density in the printer driver of Windows
and Macintosh.
Do not use window envelopes unless they are specially designed
for laser printers. The plastic on most window envelopes will melt
when it comes into contact with the hot fuser.
20
Paper Handling
printable side up