What is the difference between the Reference Guide and the Online User's Guide?

The Reference Guide contains brief explanations for routine operations, basic Fax, Copy and Scan operations, basic machine maintenance, and troubleshooting tips. The Online User's Guide includes all the contents of the Reference Guide plus additional information about Print, Scan, Copy, Fax, mobile device functions, Brother ControlCenter operations, troubleshooting, and network usage. (Page 5)