A method for printing an image on a receipt is disclosed. The invention solves the problem that the above assumption may be incorrect. The invention also provides antisense nucleic acid molecules, expression vectors containing the nucleic acid molecules of the invention, host cells into which the expression vectors have been introduced, and non-human transgenic animals in which a nucleic acid molecule of the invention has been introduced or disrupted. In another embodiment, the loop extender includes POTS loading coils to improve the POTS or voice band transmission over the local loop.