The SD Card panel is displayed only when a SD card is inserted in the SD slot of the printer and is readable. It displays files and folders on the SD card.
If there are more than 5 files, use the two buttons (arrows) to display the files page per page.
Folders are displayed before files
To enter a folder, tap on its name.
To go back the the parent, tap on the icon with the two dots.
Files are displays in chronological order, latest modified first.
To print a file, tap its name. The Print panel is displayed and the print starts.