On 16 Jan 2008, at 13:03, David Vohs wrote:
  Just wanted to pose the question to the group in
regards to the gummy
 pinch roller problem in the HP-85.
 Anyone know where I can find a commpatible, hard plasic pinch roller?
 
The usual solution is to strip off all the old rubber from the capstan
and fit a small piece of polypropolyene flexable piping over and glue
in place.
The website following gives an excellent description
http://www.voidware.com/calcs/hp85rep.htm
roger