where did you lose my scanner

Hello

Can you tell me what your Canon's exact model number is please? Thanks!

I think you need OEM driver. I am going to review it to get you the download link.

To get the Canon printer‑scanner combo detected again in Windows, follow these steps in order.

1. Verify Windows still sees the device
   1. Make sure the printer‑scanner is powered on and connected (USB cable firmly plugged in, or on the same Wi‑Fi/network SSID as the PC).
   2. On the Windows device, select Start → Settings → Bluetooth & devices → Printers & scanners (or Devices → Printers & scanners on some versions), or use this shortcut from the context: Open Bluetooth & Devices > Printers & scanners.
   3. In Printers & scanners, check whether the Canon device is listed.
      • If it is listed, select it and look for Scanner settings or a Scanner: entry under Manage. That confirms Windows still recognizes the scanner part of the combo.
      • If it is not listed, continue with step 2.
2. Re‑add the printer‑scanner
   1. In Bluetooth & devices → Printers & scanners, select Add device next to Add printer or scanner.
   2. Wait while Windows searches the network/USB for devices. This can take a few minutes.
   3. When the Canon device appears in the list, select Add device next to it.
   4. After installation completes, confirm it now appears in Printers & scanners.
   5. If the device does not appear in the search results, select The printer that I want isn’t listed or Add a new device manually, then follow the wizard to add it manually (for example by IP address for a network device).
3. Confirm the scanner is installed (for all‑in‑one devices)
   1. In Printers & scanners, select the Canon printer entry.
   2. On some Windows versions, select Manage.
   3. In the device window, look for a drop‑down or options list that includes an item prefixed with Scanner: or Scanner settings. If present, Windows sees the scanner.
4. If applications still cannot find the scanner If the device shows correctly in Printers & scanners but scanning apps cannot see it, restart the Windows imaging service and/or the PC:
   1. Restart the PC with the scanner powered on and connected.
   2. If the issue started after switching from one scanner to another (for example, from a network/WSD scanner to USB), uninstall the scanner in Device Manager, reconnect it, and let Windows reinstall it. This works around known issues where applications fail to see a newly connected scanner.
5. Scan the tax documents Once the scanner is visible to Windows:
   1. Open the Windows Scan app.
   2. Choose the Canon scanner, select the file type and save location (or use the default Pictures/Scans folder).
   3. Select Scan.
   4. After scanning, use View to open the file in Photos, or find it later in File Explorer under the chosen folder (by default, Pictures → Scans in the user profile).

If the Canon device still does not appear anywhere in Printers & scanners after these steps, install or update the Canon driver/software from the manufacturer’s site, then repeat steps 1–3.

References:

• Install and use a scanner in Windows
• Applications are unable to find a new scanning device after another device is disconnected