Patent ID: 7984605

Claim:
A method of returning a cable chain from an extended position to a retained position, said method comprising: providing a cable chain made from a plurality of links having a limited arc of rotation, said links periodically reversed on said articulated cable chain so that said cable chain forms a plurality of folding curves in sequentially opposite directions along said cable chain when said cable chain is in said retained position, said cable chain defining: a proximal end attached to said chassis, a distal end oppositely disposed from said proximal end and attached to said customer replaceable unit; and, a biased section adjoining said proximal end; placing a spring adjacent to said cable chain proximal end that engages said cable chain biased section and said chassis so that said spring biases said cable chain biased section towards said chassis to initiate forming of said plurality of folding curves when said customer replaceable unit is moved from said extended position to said retained position.