Cause: You downloaded a 32-bit driver for a 64-bit OS, or vice versa. Fix: Verify your OS architecture. Go to Settings > System > About. If it says "64-bit operating system," you need a 64-bit driver. The Dcopia 5000mf has separate packages for x86 and x64.
In many regions (Europe, Middle East, Asia), Olivetti products are distributed by partners like Kofax or Ecostar. Check your warranty card for the specific regional portal.
Cause: The scanner communication port is blocked by Windows Firewall or the WIA service is disabled. Fix: