I searched our knowledgebase and found this solution that may help you set the tray default at he device.
after i changed my pc, the printer always tries to print form bypass tray, although i set all the defaults to tray 1.
note: it wants the bypass tray from word and pdf, but when i print from chrome browser, it works.
i failed to find the correct settings. set the defaults to tray 1, in: word, pdf, xerox homepage, xerox app.
last driver from xerox website, all the xerox sw is downloaded 3 days ago from xilinx.
the printer is WorkCenrte 6515DN.