Kan. Stat. § 25-4607
The ballot information shall be in the order of arrangement provided for in article 6, chapter 25 of Kansas Statutes Annotated for official ballots. Such information may be printed on both sides of one ballot or on more than one ballot. Nothing in this act shall be construed as prohibiting the use of multiple ballots when the information for any election exceeds the capacity of a single ballot. Voting squares or ovals may be placed before or after the names of candidates and statements of questions or on a separate paper corresponding to the ballot upon which the names of candidates and statements of questions appear. Voting squares or ovals shall be of such size as is compatible with the system used. Ballots shall be printed on paper and with ink compatible with the system used and the information printed in as plain clear type and size as the ballot spaces permit. On each ballot shall be printed a box, which shall be placed on the ballot in such a manner so as not to interfere with the scanning of the ballot. Such box shall be provided to allow for the insertion of a unique mark designated by the county election officer to verify the authenticity of the ballot.
K.S.A. 25-4607