cannon c257if image runner advanced dx scanner not detected

If the device can print but the scanner is not detected, the issue is not enough evidence of “no driver support” by itself. The supported guidance in this case is:

1. Remove and re-add the device in Settings > Bluetooth & devices > Printers & scanners.
   • Select the affected multifunction printer and remove it.
   • Disconnect the USB cable if it is USB-connected.
   • Reconnect the USB device to the system.
   • In some cases, Windows 11 recognizes the scanner again after reconnection.
2. If this started on Windows 11 after installing KB5079473 or later, check whether the printer is a USB-connected multifunction printer that uses IPP over USB.
   • In that scenario, third-party scanner drivers can fail to install.
   • Scanner and fax functions can enter a disconnected state and not be recognized by Windows 11.
   • Microsoft states there is currently no confirmed workaround, though reconnecting the USB device can temporarily restore scanner detection.
3. If Windows was recently reset or the device was reinstalled, completely uninstall the printer/scanner software, restart the PC, and then install the manufacturer’s latest printer drivers, firmware, and associated software package.
4. Verify whether scanning works in another Windows scanning app or the manufacturer’s scanning software. If it works there but not in the Scan app, the issue is with app detection rather than proof that the scanner lacks support.

The context does not confirm whether the Canon imageRUNNER ADVANCE DX C257iF specifically has or lacks a supported scanner driver. It does confirm that Windows 11 currently has a known issue affecting some USB IPP multifunction printers where scanner detection can fail.

• Third-party drivers fail on USB IPP multifunction printers in Windows 11
• How to set up more than one printer/scanner in microsoft scan app - Windows 11 - Microsoft Q&A
• resetting printer/scanner after resetting pc - Microsoft Q&A