User`s guide

E-2
Important Information
• The displays and illustrations (such as key markings) shown in
this User’s Guide are for illustrative purposes only, and may differ
somewhat from the actual items they represent.
• The contents of this manual are subject to change without notice.
• In no event shall CASIO Computer Co., Ltd. be liable to anyone for
special, collateral, incidental, or consequential damages in connection
with or arising out of the purchase or use of this product and items
that come with it. Moreover, CASIO Computer Co., Ltd. shall not be
liable for any claim of any kind whatsoever by any other party arising
out of the use of this product and the items that come with it.
• Be sure to keep all user documentation handy for future reference.
Sample Operations
Sample operations in this manual are indicated by a icon. Unless
specifically stated, all sample operations assume that the calculator
is in its initial default setup. Use the procedure under “Initializing the
Calculator” to return the calculator to its initial default setup.
Initializing the Calculator
Perform the following procedure when you want to initialize the
calculator and return the calculation mode and setup to their initial
default settings. Note that this operation also clears all data currently
in calculator memory.
O!N(CLR) 3(All) =
Safety Precautions
Battery
• Keep batteries out of the reach of small children.
• Use only the type of battery specified for this calculator in this
manual.
Handling Precautions
• Dim figures on the display of the calculator indicate that battery
power is low. Continued use of the calculator when the battery
is low can result in improper operation. Replace the battery
as soon as possible when display figures becomes dim. Even
if the calculator is operating normally, replace the battery
at least once every two years (fx-100MS), or three years (fx-
115MS/570MS/991MS). A dead battery can leak, causing damage
to and malfunction of the calculator. Never leave a dead battery
in the calculator.
• The battery that comes with the calculator discharges slightly
during shipment and storage. Because of this, it may require
replacement sooner than the normal expected battery life.