Konica Minolta PW1-NS Operating Instructions Manual page 16

Inserting the cartrige film into the carrier
Removing the cartridge film
When you cancel the operation or finish scanning, do not
remove the cartridge film until the film is rewound into the
cartridge and the initial display is restored.
1
Press the cartridge eject lever and open the lid.
2
Remove the cartridge film and close the lid.
16(EN)
Note
If you try to remove the cartridge film during prescanning or
film loading, the film may be jammed inside and removing
the cartridge may be impossible. In this case, do not remove
it forcibly.
To remove the cartridge film, press the reset switch of the
Film Scanner or turn the power off and turn it on again. The
film will be rewound and the cartridge will be ready to be
removed.