When all else is in readiness for the opening of the polls, the inspector shall, in view of the judge, clerk and any registered voters at the polling place, confirm that the ballot box is empty and locked and shall cause the voting device to print out a paper tape to verify that no votes have been counted. This tape shall remain attached to the voting device and in evidence throughout the voting process. The key or other device used for obtaining printed totals shall be retained by the inspector.
Okla. Stat. tit. 26, § 7-107