Replace roller rubber on HP 9825 tape drive

[Tony Duell]

> 
> On Thu, 7 Jul 2005, Dwight K. Elvey wrote:
> 
> >  I'm not sure how it works. The 10% number is not even
> > close. It is more like 0.5% or so. It does take up slack
> > over time. I think it has to do with the stretch of the
> > belt. There is more tention on one spool than the other,
> > making one side move a little faster than the other.
> > The one spool getting the more stretched belt would tend
> > to move a little faster than the side without stretch on
> > it since it would see more effective belt movement.
> 
> I would think that the faster spindle has a smaller diameter than the
> slower one.

Yes, but remember the belt drives the outide of the tape on the 2 spools. 
Yes, the smaller spindle will turn quicker (more revs per second), but 
to tension the tape you need to move the tape faster (more inches per 
second) on the takeup side. And I still don't see why this happens.

-tony