Pentax IQZoom 700 Operating Manual page 21

Rewinding the film in midroll
If you wish to unload the film before exposing all the
frames, push the auxiliary rewind button with the protru¬
sion
o
of the strap's clamp; film rewinding starts. When
rewind is completed, the motor stops, and {
Qu
) flickers.
Caution:
Never open the back cover until rewinding is completed.