RE: filmscanners: My replacement 8000 is banding like the first one :-(

["Austin Franklin" <darkroom@ix.netcom.com>]

> > Moving the film via a carrier, which is likely molded plastic, with
> > plastic gearing, and also having it need to "mesh' with the motorized
> > transport, and being that the carrier is prone to dust and dirt
> > attraction and "the elements", makes it much harder to maintain
> > integrity of precision movement.
>
> No film scanner I know of uses teeth that mesh with a plastic
> carrier to move the film during scanning.  Some have teeth that
> mesh with a plastic carrier used for rough positioning of the
> carrier to the start of the scan.  Then a metal screw controlled
> by a stepper motor is used to move the film 36mm.
>
> Regards,
> Ed Hamrick

That's interesting...I thought the Polaroid SprintScan 4k that I had used
the plastic teeth in the carrier to move the film...but you are saying it
only positions the film with those teeth, I assume then locks the carrier
somehow, and uses an other mechanism (lead screw perhaps) to move the film
during scanning.