Ohio Revised Code Title XXIII. Courts Common Pleas § 2313.07

(A) The number of jurors to be drawn for the jury year, and each separate part of a jury year, or for any special term of a court of record, at which issues of facts are triable by jury, shall be fixed by a general order of the court for which such jurors are drawn. The order shall be filed in the office of the clerk of the court for which the jurors are to be drawn. If the number has not been fixed at the time of the drawing, the commissioners of jurors shall fix a number they determine necessary for the business of the court for such jury year or such part of a jury year.

(B) At any time during the jury year, the court may order an additional number of jurors to be drawn by the commissioners of jurors for the jury year or for a part of a jury year at which the order is made or for immediate service in a particular case. The order shall specify the number to be drawn.