There is a contrast brightness control on these, eitgher in the manu or via external button manipulation. I am not a user of the 8500 terminal mine is earlier but i believe they all have it. Battery life also plays a part in the amount of brightness and contrast seen on the screen. Might bwe time to update the battery.
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There is a contrast brightness control on these, eitgher in the manu or via external button manipulation. I am not a user of the 8500 terminal mine is earlier but i believe they all have it. Battery life also plays a part in the amount of brightness and contrast seen on the screen. Might bwe time to update the battery.
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