2.9 Braille Display Care.
Each cell of the Braille display has eight pins. For each pin
there is a special crystal that lifts the pin to make a dot, and
allows the pin to drop when there is no dot. The pins have to be
able to move freely. In normal use dirt unavoidably accumulates
on the display and around the touch cursor buttons. To prevent
the pins from jamming, the display and touch cursor should be
cleaned regularly. Cleaning the Braille display is not
straightforward. We recommend that you send the BrailleNote BT
back to an authorized BrailleNote BT service center every twelve
months to clean the Braille display.
Making sure that your hands are always clean is a good start
towards minimizing problems with your Braille display. We
suggest that once per week you wipe the surface of the Braille
display using a soft damp cloth. The cloth should be squeezed
hard to ensure that all excess moisture has been removed. Use
only warm water on the cloth.
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