Epson Stylus PHOTO 950 User Manual page 29

Load envelopes short edge first with the flap side left, as
shown in the illustration.
Do not use envelopes that are curled or folded.
Flatten the envelope flaps before loading.
Avoid using envelopes that are too thin as they may curl
during printing.
Select Plain Paper as the Media Type setting on the Main
menu in the printer software.
Available envelopes sizes are:
No.10, DL, C6, 132 mm × 220 mm
Paper Handling
1
1
1
1
1
1
1
1
1
1
1
1
20