Steps and video of how to restore kiosks to Factory Settings by model
T2 15'
Hold the power button
Select Exit Kiosk
Enter PIN code '1234'
Locate and open 'Backup & Reset' (Under 'Personal')
Select 'Factory data reset'
Select 'Reset device'
Select 'Erase everything'
The device will reboot and the initial setup will start.
Video:
K2 24'
Press the 2 side buttons
Pull the door/lid
Press and hold the round power button on the left-hand side of the printer (Above the switch).
Select 'Exit Kiosk' on the screen
Enter code '1234'
Go to Settings on the device
Select 'Back up/reset'
Select 'Factory data reset'
Select 'Reset Device'
Select 'Erase Everything'
Video: