Epson 1170 - Manual (Page 53)

Printing on Special Paper
In addition to printing on single sheets and continuous paper, your
printer can also print on a wide variety of paper types, such as
envelopes, labels, and multi-part forms. Before printing on special
types of paper, you may need to change the paper-thickness
setting.
CAUTION: When printing on labels or multi-part forms,
make sure that your printing stays within the printable
area of the page to prevent damage to the print head. For
more information on the printable area, see Chapter 7.
Always return the paper-thickness lever to position
0
when you return to printing on ordinary paper.
Setting the paper-thickness lever
To accommodate various thicknesses of paper, the printer is
equipped with a paper-thickness lever that can be set to six
positions. These positions are identified by the scale on the printer
next to the lever.
Paper Handling 2-25