Epson 1200 series User Manual page 108

If you are scanning 35 mm strip film, use the 35 mm film
holder to set the film.
Note:
Place the film holder on the document table in alignment with the
upper left-hand corner of the Film Adapter.
If you are scanning 35 mm strip film using EPSON Instant
Photo Print, use the 35 mm film holder for use with
EPSON Instant Photo Print to set the film.
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