Have you ever disabled the TWAIN plug-in e.g. if you experienced the program crashing on start up?
Check that you have the twain 8ba file in the plug-ins folder or that its not been renamed with a tilde (~) symbol or to something like twainOLD.
If that’s not the case you may need to check your drivers are up to date.
See these notes:
Thanks for the quick response. I checked the folder as directed in the notes, and the file is TWAIN_32 - nothing in front of it, so I'm thinking it's ok. I'll have to see about the driver.
According to the HP website, the current driver is from 2009, and my computer is newer than that, so I must have the right driver. I've had problems with the driver not being detected, thus not being able to print, but I downloaded the darn thing about 3 times and finally got that working several months ago. The program *prints*, so wouldn't that indicate that the driver is ok? Is there a difference (there must be!) between TWAIN and WIA? Maybe that's the problem? But I go back to the fact that I can print, but I cannot scan. It's given me a headache.