TabletKiosk Sahara i200 Series Tablet PC (Pen) - Manual (Page 74)

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Draw Test
Test the drawing position related to the display screen on panel. There
will be a squared blue display showing. In drawing test windows, user
can click “Clear” button to clear the window.Also,click “Quit” button
to quit from the drawing test.
In drawing test windows, users can verify the panel linearity,
calibration capability, and drawing line quality.