Ricoh PJ WU6181N 6200-Lumen WUXGA LCD Projector (No Lens) - Manual (Page 239)

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9. Using the Viewer
6. Exit the setting.
Press the ▼ button to select [OK] and press the ENTER button.
This will close the [SHARED FOLDER] screen.
• If an error message appear, your settings are not correct. Try again.