Using the CanoScan LiDE 400 is simple. First, connect the scanner to your device with the Type - C USB cable. Place the photo or document you want to scan on the scanner bed. You can use the five EZ Buttons or the Auto scan mode for quick scanning. To upload your scanned photos to the Cloud, follow the instructions provided by your Cloud service. When it comes to maintenance, keep the scanner clean by using a soft, dry cloth to wipe it regularly. Avoid exposing it to dust, moisture, or direct sunlight. If you encounter any issues, refer to the user manual or contact Canon's customer service.