It seems like you're having trouble installing a scanner on Windows 7, specifically a 1640SU model. Here are some steps you can take to troubleshoot and possibly resolve the issue:
Troubleshooting Steps for Installing a Scanner on Windows 7:
- Compatibility Mode: Try installing the scanner driver in compatibility mode for an older version of Windows. To do this:
- Right-click on the driver installer file.
- Select "Properties" and go to the "Compatibility" tab.
- Check the box that says "Run this program in compatibility mode for" and select an older version of Windows like Windows XP.
- Click on "Apply" and then try running the installer again.
[]Driver Update: Check if there are updated drivers...