Thank you for using the Support Forum. There is only one admin for the printers web interface, CentreWare Internet Services (CWIS). You can create users for for accounting, scanning, etc. Please go to the support page for the WorkCentre 75xx and search on "User" and see if find the information you require. If you do not please consider contacting your support centre for further assistance.
Thanks, CherylO-Xerox Community Manager
Be sure to click Kudos for those who have helped you. Select Accept as Solution for posts that have helped to solve your issue(s)!