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• Keep the calculator dry. If it
gets wet, wipe it dry immedi-
ately.
• Handle the calculator gently
and carefully. Don't drop it.
• Use and store the calculator
only in normal temperature
environments.
• Keep the calculator away from
dust and dirt.
• Wipe the calculator with a
damp cloth occasionally to
keep it looking new.
Modifying or tampering with the
calculator's internal components
can cause a malfunction and
might invalidate the calculator's
ëì
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