The light on my my HP Scanjet 5200C  will not shut off, even after three or four hours.  This has happened before.

How can I turn it off?

Thanks.Could you post back and write what is the light for on your SCANNER. Power or something else?I have made a couple of searches and have come up with the following: if there is no power switch on your model, it should turn off when the computer is off. Also, if your scanner light is on, don't worry, it's not a conventionnal light bulb, but a LED.

By the way, do you mean that the light stays on even when the computer is off?

It's the power light on the scanner and the hours that it stays on are after I have turned the computer off.  Scanner is HP Scanjet 5200C.

Thanks for checking some sources.  Any more up your sleeve?Seems to be a somewhat common problem with scanners that have no power switch. I'd suggest tring these:

1) Turn off all programs using your scanner VIA ctrl+alt+del. But beware, before doing this, write down everything you see and check all entries at http://www.sysinfo.org/startuplist.php . Afterward, close the right ones and then turn off your computer to see if the light stays on.

2) If so, try reinstalling the drivers from the cd. By the way, this is an old scanner, works WELL but could still be updated, if you have the money.

I've had to deal with Hp's support... Good luck!I checked out that systems information list and to quote somebody famous, "It's all Greek to me."

Maybe I should just wait until it burns out and get a new scanner.

I UNDERSTAND your good luck wish with  HP.  

Thanks for trying anyway.download the HP Lamp Controller Update for the HP ScanJet ..........go to their website..I went to HP's site and then to HP's scanner 5200C and then to scanner problems.

There as no mention of a lamp controller update, no mention of lamp controller at all but several to do with LAMPS, including changing the lamp mode from economy/energy star comliant to fast scan, and eliminating lamp warm-up time. No mention of a lamp that won't go off.

Also checked HP Scanner Series - Troubleshooting the HP Scanjet Scanners and no mention there, either.

I can't figure out why they just didn't put a power switch on the scanner.

So, I think I will go back to Plan A and when the light burns out I will get a new scanner.

Thanks so much for trying to help. I do appreciate it. Quote

...I can't figure out why they just didn't put a power switch on the scanner....