Epson FX-2190 Reference Manual page 187

Caution:
c
Do not load multipart forms, carbon paper, or labels in the
high-capacity cut-sheet feeder.
1. Set the paper release lever to the single-sheet position. Also
make sure the paper-thickness lever (located under the
printer cover) is set to 0 if you are using ordinary single-sheet
paper. (If you are using envelopes, see "Envelopes" on page
57 for instructions on setting the paper-thickness lever.) Then
open the paper guide cover.
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