Sharp EL-9900 - Manual (Page 12)

2
Chapter 1
Getting Started
Before Use
1. Open the battery cover
located on the back of the
calculator. Pull down the
notch, then lift the battery
cover up to remove it.
2. Insert the batteries, as
indicated. Make sure that the
batteries are inserted in the
correct directions.
3. Pull off the insulation sheet
from the memory backup
battery.
4. Place the battery cover
back, and make sure that the
notch is snapped on.
5. Press O and you will
see the following message on the display:
PRESS [CL] KEY TO CLEAR ALL DATA
PRESS [ON] KEY TO CANCEL
Note: If the above message does not appear, check the direction of the
batteries and close the cover again. If this does not solve the
problem, follow the instruction described in "Resetting the
Calculator - 1. Using the reset switch" on page 29.
6. Press C to reset the calculator’s memory. The memory will
be initialized. Press any key to set the calculator ready for
normal calculation mode.
Inserting
batteries -
resetting the
memory