Very Simple !! I have a prefectly functioning but out-of-warranty Model D7260 Photosmart Printer for which the Proprietary Power Cable (35VDC w/special connector) has been lost and needs to be replaced.
I have tried every way I can to get to parts for printer and find that -- if out of warranty, HP can't be contacted on a product.
If that's the way to do business, remind me -- after I throw away a prefectly good printer, to never buty anything HP again..