Patent ID: 8045904

Claim:
An apparatus comprising: a rotatable belt member; a rotatable supporting member for supporting said belt member; a first rotatable steering member for adjusting a position of said belt member with respect to a rotational axis direction of said supporting member by contacting an inner surface of said belt member and inclining with respect to the rotational axis direction of said supporting member; a second rotatable steering member for adjusting the position of said belt member with respect to the rotational axis direction of said supporting member by contacting the inner surface of said belt member and inclining with respect to the rotational axis direction of said supporting member; a connecting portion for connecting said first rotatable steering member and said second rotatable steering member with each other; and an interrelating mechanism for interrelating an inclining operation of said first rotatable steering member and an inclining operation of said second rotatable steering member with each other so that said first rotatable steering member and said second rotatable steering member incline in the same direction by said connecting portion.