Patent ID: 8041272

Claim:
An apparatus comprising: a first drum; a second drum; and a positioning system configured to adjust relative positioning and pressure between the first drum and the second drum and to maintain a selected relative positioning and pressure despite run out of either of the first drum or the second drum, wherein the positioning system comprises: a first bearer coupled to the first drum so as to rotate with the first drum, the first bearer having a first diameter less than a diameter of the first drum; a second bearer coupled to the second drum so as to rotate with the second drum, the second bearer having a second diameter less than a diameter of the second drum; a first spacer mechanism in engagement with the first bearer and the second bearer, the first spacer mechanism being actuatable between a first state in which the first bearer and the second bearer are spaced by the first spacer mechanism by a first distance and a second state in which the first bearer and the second bearer are spaced by the spacer mechanism by a second distance different than the first distance, wherein the first spacer mechanism is proximate a first axial end of the first drum and a second spacer mechanism in engagement with the first bearer and the second bearer proximate a second axial end of the first drum, the second spacer mechanism being actuatable between a first state in which the first bearer and the second bearer are spaced by the second spacer mechanism by a third distance and a second state in which the first bearer and the second bearer are spaced by the second spacer mechanism by a fourth distance different than the third distance, wherein the second spacer comprises: a first roller in contact with the first bearer; and a second roller in contact with the second bearer and the first roller, wherein the second roller rotates about a first axis that is configured to be adjustably positioned with respect to the first roller and the first bearer.