Ohio Revised Code Title XIII. Commercial Transactions § 1351.09

(A) A lessor is not liable under section 1351.08 of the Revised Code for any violation of the requirements of this chapter if, within sixty days after discovering an error, and before an action for damages is filed against him pursuant to section 1351.08 of the Revised Code or written notice of the error is received from the lessee, the lessor notifies the lessee of the error and makes adjustments to the account of the lessee that are necessary to assure that the lessee is not required to pay an amount in excess of the amounts actually disclosed. This division applies whether the error was discovered through the lessor's own procedures or by any other means.

(B) A lessor is not liable under section 1351.08 of the Revised Code for damages in excess of the actual damage sustained by the lessee if the lessor shows by a preponderance of the evidence that the violation of this chapter resulted from a bona fide error notwithstanding the maintenance by the lessor of procedures reasonably adopted to avoid the error. As used in this division, “bona fide error” includes, but is not limited to, clerical, calculation, computer malfunction and programming, and printing errors.