I found this The data backup system in memory retains this information thanks to batteries when the register is no longer powered or in case of a power failure. If the register is disconnected without having installed the batteries, all the data in memory will be lost.
SO, remove the batteries and unplug the register for a good hour.
The data backup system in
memory retains this information thanks to batteries when the register is no longer powered or in case of a power failure.
If the register is disconnected without having installed the batteries, all the data in memory will be lost.
SO, remove the batteries and unplug the register for a good hour.
It's a SHARP XE A307