Adding and Removing users from the scan to email list in Toshiba Printers

From the home page of the printer, select the User Functions option (it has a picture of a cog), then select Address.

To add a user: 

Scroll down to the bottom of that list, then click a blank line. Press "Entry" to add a new name and email address. 

To remove a user:

Select a user in the address book, and then press delete.