If you are printing layout and you would like to add job information to the layout output this can be setup in iCommand.
From iCommand go to Tools\Drawing info.
Select the Layout Drawing Tab.
Enter a label and select a field name that you would like shown on the layout output. Click OK.
Now from iModel select Layout\Print.
Select your printer.
Make sure the Job Info. is selected and click OK.
The job information can now be seen on the layout output.