Optical Scan System: Optical scan machines scan and tabulate the selections made on a paper ballot. Voters make their selection using a pen to fill in an oval or connect two lines. Jurisdictions in 49 states and the District of Columbia use optical scan technology in some capacity. Seven of these states use optical scan only to process absentee or mail ballots.
If 49 states (including Pickett and Hamilton counties in Tennessee, by the way) use optical scan machines to count paper ballots without incident, then why can’t we?