UP-3500 (serv.man35). UP3500 Operation Manual - Sharp EPOS User Guide / Operation Manual. Page 14

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■ Customer display

There are two customer display options available for the UP-3500.
The pole type customer display or an integrated type rear display can be installed.

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■ Screen save mode

The screen save function starts when the POS terminal is left idle for an extended period of time. You can
program the time for which your POS terminal should keep the normal status before it goes into the screen
saver mode. If the time has not been preset, the screen saver will be started after 100 minutes.
To exit the screen saver mode, touch anywhere on the touch panel (a secret code may be required at this
time).