Use Restrictions
You can set usage limits for unregistered clients (data sent without ID) and for local print (print from operator panel such as menu map or file list). When "Disable Printing" is set, clients cannot change other settings.
•Disable Printing: All printing is cancelled.
•Disable Color Printing: Color data printing is cancelled.
Executive Series 2426 Printer Family User’s Guide
Print Job Accounting Utility • 685