Question about Visioneer OneTouch 8920 Flatbed Scanner

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I've been using this scanner for over a year For some reason, it keeps telling me that scanner is not connected I checked and it's both connected to the USB port and the wall

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  • Roberta Smith
    Roberta Smith May 11, 2010

    unplug the usb and plug it back in... that may fix the issue

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Try going to manufactures web site and downloading drivers for the printer from there. Also you might check your device manager to see if the unit is being recognized by your computer. it should show up iunder USB or Printers. I had an Epson that did the same thing but mine was a wireless and I had to re-establish coneection and go through setup again to have my IP address recognized. Most of the time plug n play will pick up the new device.

You might also try running security and windows updates on your computer, there might be an update that is keeping the computer from recognising the printer anymore.

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I have installed HP PHoto and Imaging Softward for ScanJet 3570c 48 bit. Everytime I try to click on icons on the scanner, my computer shows an error message that there is a problem with connecting to the...


Does the same error occur if you launch a scan from the computer? What OS do you have? Vista only has a basic driver available and does not support the scanner buttons. (You can launch the scans from a number of options: third-party software, Windows Fax and Scan (new scan), Microsoft Paint (File > Import from Scanner or Camera > New Scan) and Windows Photo Gallery.)

If the error occurs when you launch the scan from the computer, try a new data cable and different USB ports. Try a direct USB connection if you use a hub. Then check your USB ports and the drivers for the USB. (For Windows, look in the Device Manager. Start > Control Panel > System > Device Manager (exact directions will depend on the OS).

The HP Photo and Imaging software requires you to set the default scan destinations in the software before you can use the buttons on the scanner (for those OS/driver versions that support the feature). Always open the software and scan from the computer to see what the defaults will be. Each version of HP's imaging software set up these buttons differently; the help option is useful. Try Scan > Scan settings to find where to set the color and black & white destinations.

I hope this helps. If you add a comment with your OS and whether the computer can launch a scan, I'll provide additional help if I can.

Cindy Wells
(who inherited a scanner when a USB hub failure aggravated the original user into buying a new scanner thinking it was a scanner problem.)

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Regarding the Cannon scanner error 2145,50. The MG5220 does this also. The actual problem is that the scanner will not communicate with the computer correctly if it is connected through a USB hub. A direct connection to the computer cures it, for me at least.
I know, I had that problem. I am a retired electronics design engineer.

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1 Answer

Hi. So my family has an HP Photosmart C4280 printer/copier/scanner which we have had for a few years. It is connected to our Windows XP. It has always worked up until lately. The printer and copier work...


No its not like that , There must be some software issue, the other thing can be that you must have attached new USB devices because of which the scanner is not getting as much as power needed from USB and hence telling that its not connected.. Try to remove all the USB devices and keep only All in One attached and then try to scan.

You can also try to scan from Scanner and camera wizard

You can find it under
Control Panel >Scanner and Cameras (If its in classic view)

Control Panel >> Printer and other hardware > Scanner and Cameras (If its in category view)

Please let me know if it does not fix the problem then we will go through extensive troubleshooting

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I'd say that means that the scanner won't work on your model year GMC.
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