2
Neverdropthecalculatororotherwisesubjectitto
strongimpact.
Nevertwistorbendthecalculator. Avoidcarryingthe
calculatorinthepocketofyourtrousersorother
tight-fittingclothingwhereitmight besubjectedto
twistingorbending.
Nevertrytotakethecalculatorapart.
Never press the keys of the calculator with a ball-point
pen or other pointed object.
Use a soft, dry cloth to clean the exterior of the unit. If
the calculator becomes very dirty,wipe itoff with acloth
moistened in a weak solution ofwater and amild neutral
household detergent. Wring out all excess moisture
before wiping thecalculator.Never use thinner, benzene
or other volatileagents to cleanthe calculator.Doing so
can remove printed markings and damage the case.