Photoshop TWAIN problem

  Vulcan 14:00 20 Jan 03
  Vulcan 14:00 20 Jan 03

I currently have a problem (which has occurred before) when attempting to scan documents into Photoshop via my HP Officejet Pro 1170C.
I am getting the message "Could not open the TWAIN source. Make sure there is a valid source for your scanner in the TWAIN directory found in the Windows directory".
What's up, doc - and how do I fix the problem?

  PA28 14:06 20 Jan 03

On the assumption that it's switched on (sorry!), suggest a removal and reinstall of the HP might be the answer. How does it show up in Device Manager?

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