When a written motion is filed to recuse a judge of a court of appeal, he may recuse himself or the motion shall be heard by the other judges on the panel to which the cause is assigned, or by all judges of the court, except the judge sought to be recused, sitting en banc.

When a judge of a court of appeal recuses himself, or is recused, the court may (1) have the cause argued before and disposed of by the other judges of the panel to which it is assigned, or (2) appoint another of its judges, a judge of a district court or a lawyer having the qualifications of a judge of a court of appeal to act for the recused judge in the hearing and disposition of the cause.