Epson 2250 - Manual (Page 41)

Printing on Special Paper
In addition to printing on single sheets and continuous paper, your
printer can print on a wide variety of other paper types, such as
envelopes, labels, and multi-part forms. You need not adjust the
printer for the paper thickness when you use these paper types.
Never move the small levers on the ends of the metal
Never move this lever.
l
Disregard the numbers 0 and 1 under the printer cover
on the left side. They are not necessary for printer
operation.
Paper Handling 2-15