Sharp XEA212 Faq page 3

How to install the batteries, and why should I do so?
The XEA212 uses 3 x AA size batteries to hold its preset, and sales data in memory
when it is switched off. If you do not install 3 x AA size batteries; the XEA212 will
be cleared of all preset, and sales data when it is turned off.
1. Lift the printer cover up and forward, and detach it. Be careful of the paper
cutter to avoid cutting yourself.
2. Open the battery compartment cover next to the paper roll cradle.
3. Install 3 alkaline AA size batteries. When the batteries are properly installed
the "No Battery" message on the display will disappear.
4. Close the battery compartment cover.
A set of new alkaline batteries once installed will keep the memory for up to one year
without power. Please see the question on how to replace the batteries for details on
when and how to replace the batteries. If the unit is not used for some months, you
might not get any warning when you turn the XEA212 on that the batteries have
failed. In this instance the XEA212 will initialise itself.
XE-A212 Frequently Asked Questions Page 3 of 21