From the file that you want to print, such as a Google Doc, Click the Print icon (in Docs, its on the left side of the toolbar).
In the destination dropdown menu you may need to click "see more...", then select to follow you printer that you want to use - colour or black and white.
The first time you use this service you will need to type your username and password.
When you sign into a printer to release the job you will need to assign the job to a department for billing.
Sign into a printer, and click the print release button - you will then see that the document says account needed.
Tick the checkbox and click print - bottom right.
Click the subject that the work is for - this example shows the technician print group only
On the last screen click print to finish printing.