Minolta MAGICOLOR 2 Manual page 16

s Caution: Although the QMS magicolor 2 was designed for occasional
printing on a wide range of media types, it is not intended to print
exclusively on a single media type except plain paper. Continuous
printing on media other than plain paper (such as transparencies,
labels, or thick stock) may adversely affect print quality or reduce
engine life.
Formatting
Input
Type
Notes
Your printer receives the instructions to print on envelopes
from your application.
n When formatting data for envelopes, leave at least a 0.16"
(4.06 mm) margin from the edges of the envelope.
n Print on the front side only. Some parts of the envelope
consist of three layers of paper—the front, back, and flap.
Anything printed in these layered regions may be lost or
faded.
n See your application documentation for specific information
on printing envelopes.
Source Upper slot; universal cassette
Capacity Up to 15, depending on the thickness of the
envelopes
Refer to the specifications in chapter 2, "Print Media," in the
Reference
n Use envelopes with a smooth exterior surface. Envelopes
with a rough surface may jam in the media cassette.
n You can print only on the address side of the envelope.
n You can print envelopes from either cassette, but only in
the upper position, not from the optional lower input feeder.