UMAX Technologies Astra 2100U - Manual (Page 62)

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Configuring the Custom Button Values
1. Click on the Custom icon to open the window that contains the
variables you are adjusting.
NOTE: The Custom icon controls the values for both the E-
mail and OCR (optical character recognition) features. You
configure the variables for each function separately.
To configure the values for the e-mail function:
1. If the E-mail icon is not selected (enclosed in a red box), click
the E-mail icon.