Xerox Ink Blogurl:blogspot.com I Have A Xerox Phaser 8560 And I Put In New Ink For All Colors And It Is Still Not Recognizing The Yellow Ink?

I have a Xerox Phaser 8560 and I put in new ink for all colors and it is still not recognizing the Yellow ink? - xerox ink blogurl:blogspot.com

Has anyone noticed the same problem and discovered what is the solution? I have a tech coming tomorrow, but I have no time. My business depends on this printer.