Scanner not working or not detected

Turn the printer off, wait 30 seconds and turn it on, and restart your computer too. Clear any message on the printer's screen and make sure the scanner lid is closed.

For USB, plug the cable straight into the computer rather than a hub or monitor port, and try another port or cable. For Wi-Fi, print the printer's network status page from its menu and confirm it's on the same network as your computer, not a guest network.

If your printer can copy, or scan to a USB drive or email, try that. If it works, the scanner hardware is fine and the problem is on the computer side.

Windows often sets up an all-in-one with a print-only driver. Download the full software or driver package for your exact model from the maker's official support site and install it; this adds the scan driver and usually a scanning app.

Install the free Windows Scan app from the Microsoft Store, open it and pick your scanner. If it appears and scans here, the driver works and the problem is with your other app.

Press Win + R, type services.msc and press Enter. Right-click Windows Image Acquisition (WIA) and choose Restart, or Start if it isn't running.

For a network scanner, open Settings > Network & internet, open your Wi-Fi or Ethernet connection's properties, and set the network profile type to private so devices can find each other. If you use third-party security software, check it isn't blocking the maker's scan software.

Remove the device in Printers & scanners, restart the PC, then add it again or rerun the maker's installer.

Open Image Capture from the Applications folder. Your scanner should appear in the sidebar under Devices or Shared; if it scans here, scanning works and the issue is with another app.

In System Settings > Printers & Scanners, Control-click your device and remove it, then add it again with Add Printer, Scanner, or Fax. This often restores scanning on devices that support driverless scanning.

Older or business models may need the maker's Mac scan driver or app. Download it only from the maker's official support site and check it supports your macOS version.

On macOS 15 and later, if the maker's app can't find the scanner, open System Settings > Privacy & Security > Local Network and make sure the app is switched on.