Siemens ADVIA 2120 Operator's Manual page 23

Printing the screen
You can print any screen by pressing the Print Screen key.
IMPORTANT:
However, pressing the Print Screen key when there is no printer attached to the
system can cause the system to malfunction. Make certain that there is a printer
attached before you attempt to print the screen.
Welcome to the ADVIA 2120/2120i Hematology System 1-19