This was another practical marriage between one HP Officejet 4500 All in one (Printer, Scanner, Fax, LAN, WiFi) device, which gained a second life by one 30V 400mA power supply which it was removed by a dead CANON printer.
By using cables with clips from a PC PSU harness, and high quality dual side tape, the result speaks by it self.
I did add a bit of hot-glue so to double secure the connection in time.
By testing this HP Office-jet 4500 what I liked the most is it speed as photocopier.