HP photosmart C4680 - "scanner could not be

SOURCE: I have a HP photosmart

I get this every now and then, usually because, during a scan, I abort for some reason--reset the computer, force-quit, whatever.  The printer driver, I think, leaves some breadcrumbs that it can't recover from when it runs again.
Anyway, I reset the printing system and install the latest HP driver.  If that doesn't work, I delete the HP folder in the Applications folder; then remove whatever files I can find in the /Library folder such as Application Support/Hewlett-Packard, Application Support/HP, any HP file in Preferences, Image Capture/TWAIN Data Sources/HPScanPro.ds.
Then reinstall the driver and things work fine.  I'm thinking this last item, the HPScanPro.ds in the TWAIN folder might be the culprit but I haven't tried just remove it alone--after I remove everything things work so I can't "try it again"...and don't want to!  =)
Anyway, I've had success with this method.  Good luck!

SOURCE: HP Laser jet 3330 scanner problem unable to communicate

http://www.printcountry.com/drivers/HP_DRIVERS.asp

also try this
http://www.soft32.com/s/Windows/Drivers/Printers/3-377-0-5.html

SOURCE: Scan error with HP Photosmart C4480

Link to your documentation:

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us〈=en&product=3418705&

SOURCE: Can't scan on my HP Photosmart 4280

hi 1st of all remove ur old driver and then try to install this one from herehttp://www.userdrivers.com/Printer/HP-Deskjet-F4280-All-in-One-Printer/download/

SOURCE: HP photosmart C5580 How scan to computer?

scanning through bluetooth is not possible bluetooth module only pairs the computer and printer and has link only to the basic driver of the computer so you can only print from it
if you want to scan you should connect te usb cable or use a wireless upgrade kit