problem with scanner hp-5470 c

Archived from groups: comp.sys.hp.hardware (More info?)

Goood morning, i have a big problem with a scanner hp-5470C.

i have a power suply from this scanner broken, and i try to connect another
standart power suply. The scanner power on, all the buttons works, but when
i attached the scanner to a usb port of a computer, the computer can´t find
it.
I think that the scanner usb port is alimented to original hp power suply
too.

If any people knows about the wired four pines conectors of the original hp
power suply, please email to: panic1@ya.com

many thanks