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HP Printer Photosmart C4280 scanner not working indicating usb not connected. have printed and copied which is working ok

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My printer will print and copy but won't scan. It


First, do you have the full-featured version of the software installed (installed on the computer before connecting the printer to the computer)? Second, do you have the all-in-one connected to a print server or USB hub? These can block the two-way communication needed for scanning. Try a direct connection. Also try a new USB cable and a different USB port (if you have any signal loss issues, it matters more with the scanner).

I hope this helps.

Cindy Wells

Mar 22, 2010 | HP PhotoSmart C4280 Laser Printer

1 Answer

My printer works fine using the "print" button on screen and the "copy" button on the computer. When I select the "scan" button on the printer it tells me the USB cable is not connected.


Check the owner's manual if the scanner requires USB 2.0 to operate correctly. If it does your USB cable needs to be 2.0 specification instead of the original 1.1 specification. That would go for the computer as well.

If the above comments don't apply uninstall the software for both the printer and scanner; restart the computer; re-install all the software; restart the computer... and it should work unless the scanner part of the printer has a problem.

Jul 25, 2009 | HP PhotoSmart C4280 Laser Printer

1 Answer

HP Printer C4280 says "USB not connected"


Install software that is twain compliant.
Maybe the HP bundle that came with the printer.
Also Paint Shop Pro,Adobe Acrobat.Photoshop etc.
Use the usb cable after the install of the HP drivers then you may change the default location of where scans are saved.

Jul 21, 2009 | HP Photosmart C4280 Aio Printer

1 Answer

Printer and copier work fine- scanner says USB not connected.


I had this same problem and it is fixable, but not the way you would probably like, though you can still scan with the printer. You just have to open the Paint program and click from scanner or camera, and then choose your printer and click scan preview, and then scan, it works just fine but its a little time consuming.

Jun 01, 2009 | HP Photosmart C4280 All-in-One InkJet...

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Printer keeps saying usb not conected


Can you print from it? It sounds like you just need to install the software that came with it, it has all the drivers you need or go to hp website and download the newest drivers. Update your drivers and then it will recognize it.

Jan 08, 2009 | HP Photosmart C4280 Aio Printer

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Hp all in one says USB IS NOT CONNECTED when I try to scan


my hp c4380 won't scan gives out a error message the usb is not connected but it is.

Dec 12, 2008 | HP Photosmart C4280 Aio Printer

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