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I searched our online knowledge base for blank display solutions and found this article for you to review for possible fixes. If you're still having issues after trying these steps I would suggest that you call into our support department at 1-800-821-2797 for assistance.
Thanks for the link but my none of Probable Causes on there are related with my problem.
On my printer the touchscreen works, it just does not display any services.
My guess is that some update broke the CentreWare web iterface and now it fails to list available services.
I think I will not be able to restore the services icons on the printer until the CentreWare web interface is also fixed.
I will try the support department.