Datalogic Joya User Manual page 28

Use and Functioning
The mobile computer goes into power-off (low power with display
and keyboard backlight off), when it is no longer used for more than a
programmable timeout, which is defined in the POWER applet of the
Control Panel. In this mode it can be awakened (resuming operation)
pressing the Home key.
The mobile computer can also be awakened or turned off
by the application program.
NOTE
22 JOYA™ TOUCH