But "optical scanning is a pretty good interim solution for the next five or 10 years," he said.

But on Tuesday, with optical scanning, voters' ballots were instantly returned to them if they voted for two candidates in the same race.

Officials in counties with optical scanning said they were more confident of the reason for undervotes.

Still, optical scanning is hardly a flawless system.

The troubles of voting machines may subside as optical scanning comes in, but they're unlikely to ever go away.

The optical scanning also failed to spot it because of the dense forest cover.

The best voting technology now available uses optical scanning.

There are machines, there's the optical scanning, and then there are a whole variety of ballots.

State officials said the shift to optical scanning was expected to cost $28 million.

Brunner supports a move to paper ballots, which would use optical scanning.