A coupling arrangement having an optical photo-conductive drum including drum
exterior
and interior surfaces surrounding and extending along a longitudinal axis, the
drum exterior surface facing away from the longitudinal axis, and the drum interior
surface facing toward the longitudinal axis and including first and second open
ends and at least one protrusion disposed apart from the first and second open
ends. A flange includes a flange interior surface disposed in the first open end,
a flange exterior surface disposed outside of the first open end, a flange side
surface connecting the flange interior and exterior surfaces, and at least one
receiving portion. The at least one protrusion is disposed in the at least one
receiving portion.
