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Hp scanner problem

When i try to turn on it comes on but says (scanner failure. turn power off and then on.) idid but does nott work

please help me on that

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Whats the model number of your HP scanner ?
if its a USB type you must power up the scanner but unplug the USB lead, load the driver software and wait until it tells you to connect the USB lead, to complete the process
HP printers & scanners are very difficult to
get up and running
good luck

Posted on Aug 10, 2008

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Try a different cable to connect to the PC.

Try downlading updates and security patches from here.

If these don't work, power off the scanner > disconnect the connection cable > uninstall all components of the HP Programs in Add or Remove programs > restart the computer > reinstall the scanner drivers and programs > restart the computer > power on the scanner > reconnect the cable > test again.

If none of this works, the device may be faulty.

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sometimes the power management causes the scanner to act up or fail altogether.
Try: Solution: Disable power management on the USB hubBy default, Window XP tries to disable USB port when the HP Scanjet scanner is not in use to save power. The scanner fails to wake up when called. To fix this problem use the steps below:
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Scanner not found.


first check all your wires make sure nothing has come loose.

unplug the power supply wait a minute and re power scanner.
Also, turn off you PC and restart it.

retest your scanner
if it still does not work then..

next try reinstalling your scanner driver software on your computer.

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Sounds simple enough. You will have to do a couple of things in order here. Unplug the cable from the back of the computer, and the scanner itself. Then unplug the power cord from the wall for the scanner. Wait about 20-30 seconds, then plug the scanner back into the wall. Now plug the cable in to the scanner, then the computer. Turn on the scanner and it should work. If by chance this does not work, then you may have to reinstall the drivers. If you don't have the disc, check out the manufacturer websight support section. Good luck

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If you discover that the power adapter has failed, you may be able to simply replace it in order to get the scanner up and running again. However please take note that depending on what part of the adapter circuit failed, its failure could possible have also damaged the scanner's internal circuits. However, if you find after testing that the adapter is outputting the correct voltage and amperage, then the problem would most likely be a scanner board circuitry failure.

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