HP 815MFP - Manual (Page 36)

30 hp designjet 815mfp & scanner 4200
2. Power OFF your touch screen and then power ON again.
Once recovery has started, it is automatic. A menu will appear
providing options—you must ignore it.
3. When recovery is complete, remove the System Recovery CD.
4. Power OFF your touch screen and then power ON again.
5. Perform System Maintenance. See maintenance procedures on
page 24.
how do I calibrate my touch screen?
1. Press the Quit button and select Exit to exit your
scanner software.
2. Press the System Setup button.
3. Press the Calibrate Touch Screen button
and
follow the instructions on the screen.
how do I shut down my system?
1. Press the Quit button.
2. Press the System Shutdown button.
3. When you read the ready to power off message on your touch
screen, power OFF the touch screen.
4. Power OFF the scanner.