Plustek OpticFilm 8200i Ai User Manual page 10

 For correct scan results, always turn the film with the top of
the image facing towards the back of the scanner (where
Attention power cord and USB cord are located) and keep emulsion
(non-glossy) side down.
 There is text on the top and bottom of the film, such as
manufacturer, frame numbers, film codes, batch numbers...etc.
With the film oriented correctly as described above, this text
should be read clearly (i.e., not backwards or up-side-down).
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