Patent ID: 7591468

Claim:
A finisher-compiling apparatus useful in a marking system for post marking finishing operations, said structure comprising: a compiler tray with a compiler wall, a drive shaft positioned above said compiler tray, at least two separated paddle wheels or frictional drive elements comprising at least two blades and a hub that is rotably mounted on said drive shaft, said at least two blades integral with said hub in a unitary structure and at least one of said at least two blades being a longer blade and at least one shorter blade being shorter than other said at least two blades, at least said longer blade being a split paddle blade and configured to reduce noise upon frictional contact with a paper sheet of said apparatus, all of said at least two blades configured to contact a top sheet of a stack of paper and configured to frictionally drive sheets against said compiling wall for registration of said sheets, said split paddle blade comprising a top paddle section and a bottom paddle section, said bottom paddle section configured to first contact an upper sheet of said stack of paper before subsequent contact by said top paddle section thereby reducing a noise level produced by said contact.