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Handling Precautions
•Your calculator is made up of precision components. Never
try to take it apart.
•Avoid dropping your calculator and otherwise subjecting it
to strong impact.
• Do not store the calculator or leave it in areas exposed to
high temperature or humidity, or large amounts of dust.
When exposed to low temperatures, the calculator may
require more time to display results and may even fail to
operate. Correct operation will resume once the calculator
is brought back to normal temperature.
• The display will go blank and keys will not operate during
calculations. When you are operating the keyboard, be sure
to watch the display to make sure that all your key opera-
tions are being performed correctly.
•Never leave the dead battery (fx-85B/fx-280) in the battery
compartment. It can leak and damage the unit.
•Avoid using volatile liquids such as thinner or benzine to
clean the unit. Wipe it with a soft cloth, or with a cloth that
has been dipped in a solution of water and a neutral deter-
gent and wring out.
•In no event will the manufacturer and its suppliers be liable
to you or any other person for any damages, expenses,
lost profits, lost savings, or any other damages arising out
of malfunction, repairs, or battery replacement (fx-85B/fx-
280), or insufficient light. The user should prepare physical
records of data to protect against such data loss.
•Never dispose of battery (fx-85B/fx-280), the liquid crystal
panel, or other components by burning them.
•Before assuming malfunction of the unit, be sure to care-
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