Up for sale is a used Hewlett Packard AC Printer Power Adapter #  0957-2178. The unit has been removed from a working printer and tested and is in perfect working order. From an air conditioned, smoke free home in Florida. You must be satisfied with your purchase or your payment back upon return of the item. Three business day shipping. Shipping charges include insurance. Feedback given. QUESTIONS ANSWERED. Please check my feedback.  Thanks, Herb