My Hp flatbed scanner has no power, but the fuse is ok.

My guess is the ADF has picked up some dirt. Check the path very carefully.

Dear Mail472,

We are sorry to hear about your continued issue; even after purchasing a new HP power brick for this scanner.
Sadly, the power brick is only half of the puzzle that provides the full power to this scanner it needs to function. If the unit will not power up on the new brick, then the primary control board inside will need to be examined for a blown fuse or may be dead.
If you are confident enough to open the scanner and check the fuse, unplug the power to the scnner, open it up, and check the fuse. If you would rather; I recommend getting a quote from a local computer store to have the scanner repaired and tested. Or simply purchase a new scanner at a local Retail outlet like Wal-mart, Best Buy, Office Max, or Staples.
Whatever you decide, best of luck with the scanner.

Thanks for using FixYa, and have a great day!

color scaning and buckgruend yellow

For that scanner you will need AC power module, in this link you can see power modules for that scanner:

https://hardtechgroup.net/catalog/index.php?manufacturers_id=9&sort=2a&filter_id=61&language=en&osCsid=rpk6qsosuq7prj7ko7s99fehc0

If its plugged into a power bar, try plugging in directly to an outlit. If its in an outlit try another.

Don't know if you've got round this by now but the supply needs to be 12v 1A with the inner positive

There may not be a power switch on that model. Many scanners do not have power switches.

The fuse is located behind the power plug, on the circuit board.

Power requirement per HP specs is 12VDC @ 575mA 6.9w. My scanner and power supply shows 12 VDC @ 1250ma.Over double the power going in that required. No wonder the fuse blows and you have to buy a new scanner because you can't identify or get a replacement fuse. I would suggest you confront HP and have them supply you with a new scanner.

Same problem, too. It must be that planned obsolescence. HP wants $125 for a replacement - right! I got one at a surplus electronic store for $12.95. Make sure it is 12V and at least 1250 mA.