Install a printer from the Shortcuts (or Student Shortcuts) folder on your desktop. Open the Printers folder and navigate to the folder in the area of the building in which you want to printer. Find the printer with the room number nearest to you. Double click the script icon. Wait until the script installs. You will probably get an security message. Don't close it until you see the "your printer has been installed" message. Now go to your document, select file>>printer and select this printer from the drop down menu.
Cloud print from home: https://support.google.com/cloudprint/answer/1686197?visit_id=1-636404048031365305-511543018&rd=1
Cloud print from school: Use one of these cloud-enabled printers. Find the nearest room number embedded in the name of the printer. Then click on the link. You will be able to find the printer under cloud printing when selecting the correct printer for a specific print job.