Ohio Rev. Code § 1302.64: What constitutes acceptance of goods - UCC 2-606.

(A) Acceptance of goods occurs when the buyer:

(1) after a reasonable opportunity to inspect the goods signifies to the seller that the goods are conforming or that he will take or retain them in spite of their non-conformity; or

(2) fails to make an effective rejection as provided in division (A) of section 1302.61 of the Revised Code, but such acceptance does not occur until the buyer has had a reasonable opportunity to inspect them; or

(3) does any act inconsistent with the seller's ownership; but if such act is wrongful as against the seller it is an acceptance only if ratified by him.

(B) Acceptance of a part of any commercial unit is acceptance of that entire unit.