I'm not sure, but if you mean that as Admin you want a printout of all currently active users on the system, you use this command:
admin@OES~:# who > users.txt | lpr -P <printer name> users.txt
This will use the who
command to create a file called users.txt
which is then piped into the printer output. You'll need to remove the < and > and enter your printer's name in that place on the line.