Structures and methods are provided which include a selective electroless copper metallization. The system includes a transport pipe having an intake and output for the passage of seawater. A pre-mixed bone void filler composition is described containing the acidic mineral component or the lower alkyl carboxylate source; the osteoinductive component; and a biologically acceptable carrier component that contains a liquid carrier. Alternatively or additionally, a second hole is formed in an area of the platen opposite an upstream portion of the dot formation element array, and the platen guides ink, which is discarded outside an end of the recording medium when the end is printed without a margin, too the second hole.