Sharp IQ-8900 - Manual (Page 222)

3. Set the IC card lock switch to the RELEASE position,
(a red bar can be seen in the RELEASE position.)
4. Slide the IC card eject switch and remove the protection
card.
5. Insert the card all the way into the card slot, with the
back of the card facing up.
6. Set the IC card lock switch to the LOCK position.
The unit will not turn on if the IC card lock switch is in
the RELEASE position.
Store the protection card in a safe place and be sure to
put it back into the unit when there is no card
installed.
If the battery of an installed card is depleted, a
message indicating this will appear. Turn the unit off
immediately and replace the card battery as soon as
possible (leaving the card locked in the unit) to avoid
losing data. Refer to the card manual for more
information.
If a message indicating a problem with card memory
appears, touch to continue, clearing the
card memory.
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