Scanjet 3300c was working perfectly until I installed my Epson stylus Photo 750 USB printer.
After the printer got installed I get the following messages when I try to open the HP precision scan LT software:
Error starting program
HPPRSCLT.EXE file is linked to missing export MFC42.DLL:6571
A device attached to the system is not functioning
Pressing the scan or copy button on the scanner produces the following message:
The application associated with this event could not be launched. Make sure application is available and functioning
I uninstalled the program and reinstalled... no go!
I removed the printer USB cable and tried ... no go!