SMART Technologies board d600 Manuale Utente

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CHAPTER 4 – USING AND MAINTAINING YOUR SMART BOARD INTERACTIVE 
WHITEBOARD
Pen Tray LEDs and Sensors
When you turn on or reset your interactive whiteboard, the indicator lights 
on the pen tray cycle twice. When the system is running, the lights come on only 
when you remove a tool. Only one illuminates at a time, indicating the last tool 
removed from the pen tray. The pen tray detects the removal of the pens and the 
eraser using reflective infrared sensors similar to the ones that detect the presence 
of paper in photocopiers.
NOTE
The pen tray tools must reflect infrared light. Old-style black SMART Board 
interactive whiteboard pens might not reflect infrared light reliably.
Cleaning the Pen Tray’s Sensors
If the infrared sensors in the bottom of your pen tray’s recesses become obstructed by 
dirt, the sensors don’t detect when you remove a pen or the eraser. The recessed 
LED doesn’t illuminate, and the lifted tool doesn’t work.
To clean a sensor, moisten a cotton swab with a household glass cleaner, such as 
Windex, and then carefully clean the infrared transmitter and receiver.
Infrared Sensors