Thank you for using the Support Forum. Have you set the custom size in the program you are printing from? Also make sure the paper you are using are within specs. for the tray.
The tray, driver and program must all have the same custom size, paper type, and driver and program the same paper tray chosen. If they are all set the same, try setting it up to tray1 and see if it will work. If that does not work please consider contacting your support centre for further assistance.
Thanks, CherylO-Xerox Community Manager
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