Pentax IQZoom160 Operating Manual page 29

Rewinding a film in mid-roll
If you wish to unload a film before exposing all
the frames, push the mid-roll rewind button with
the protrusion part of the strap clamp; the lens re¬
tracts and then film rewinding starts. When ^re¬
wind is completed, the motor stops, and
( 0 )
blinks, indicating that the back cover may be
opened safely.
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