Sharp EL-9900 Operation Manual page 3

C
hanging the keyboard
Using the reversible keyboard of this calculator changes not only its appearance, but also
its internal functions and configurations.
To change the 1. Press
keyboard:
2. Open the battery compartment cover.
3. Slide the keyboard eject tab
4. Turn the keyboard over, and place it
Note:
Clean the edges and contact points of the keyboard and the keyboard tap
before reattaching the keyboard to the main unit. DO NOT touch the
pad portion in the keyboard tap.
5. Replace the battery compartment cover.
6. Press
7. Make sure that the message shown
8. Press
to turn off the calculator's power.
Hold the calculator as illustrated.
(KEYBOARD EJECT) down.
The keyboard will be ejected.
Be careful not to drop the keyboard
on the floor, as this may damage it.
back in the calculator as illustrated.
Secure by gently pressing the
keyboard until you hear the notch click.
.
on the right appears.
.
1