How to scan slides with the Epson 2400

You must first remove the white panel under the lid (slide it forward)
Place the "slide guide" (black plastic grid supplied with the scanner) on the glass, against the top and right edges of the glass, so that the slides are centered.
Place the slides (4 at a time), with the matte side facing up
Go to SCAN TO FILE
PROFESSIONAL MODE
Doc type: film
Color positive film
Screen/Web
24-bit color
Size 32.4 20.6
Check the small box "sharpness"
and above all (I searched for a long time), check the small box "thumbnail"

PREVIEW
SCAN

And at the end of the work:
CLOSE
To save the work: NEXT