UMAX Scanner termination problem

A web page describing a termination problem with UMAX scanners opens with these comments: "For some strange reason UMAX is persisting in not providing terminator power from it's scanners. In the Astra 600, just like in most earlier models, this is again the case. We have notified UMAX of this fact and that we see it as an important problem. Their response is that they see no problem." It goes on to provide details.