Xerox Document Centre 420 User Manual page 100

NOTE: 1 2, 2 1,Build Job, Uncollated, Transparencies,
Envelope Tray, Booklet Creation and Mixed Size Originals (if
APS is selected) cannot be used with the Covers feature. If
Annotation is selected with Printed Covers , the annotation
programmed will appear on the back cover.
Page 3-46 Xerox Document Centre 440/432/420 User Guide