Thru-wall web processing apparatus

An apparatus for processing photosensitive material having a plurality of chambers for containing a processing fluid, and at least one internal wall structure for dividing at least two of said plurality of chambers, said at least one wall structure forming a portion of a said chamber and for allowing said photosensitive material to pass therethrough, said at least one wall structure having a top and a bottom surface and a pair of side surfaces defining a first opening, and

• at least one pair of substantially parallel contacting rollers comprising a first and a second roller, said rollers being positioned in said first opening so that said rollers central longitudinal axis is aligned with the centerline of said wall structure, the combined outer diameters being slightly greater than said first opening when said rollers are not positioned within said first opening, said rollers being radially deformable so as to fit said roller pair within said first opening,
• said side surfaces each having a recessed portion for receiving the roller ends, each said recessed portion defining a second opening which is slightly smaller than the outer diameter of said roller ends.