Epson B813102 Using Manual page 10

Before scanning transparencies, use a soft, dry, lint-free cloth
to wipe the glass of the TPU and the scanner's document
table, including the narrow window visible through the
transparency guide.
To scan transparencies, see
and Oversized
To scan slides or strips of negative or positive film, see
Using the Film
To scan normal documents with the transparency guide
installed, Scanning Normal Documents with the
Transparency Unit
Scanning Transparencies
Film.
Holders.
Installed.