Xerox WorkCentre 3210 Service Manual page 64

Theory of Operation
Separation Method
Duplex Unit
2-8
Individual sheets are separated from the friction pad in the tray. When paper
feeds into the printer, it passes over the Feed Pad Assembly that uses a
spring loaded friction pad to separate the sheets of paper.
The Duplex Unit, available on the WorkCentre 3220 only, uses a side feeding
method. When a jam occurs in the front or rear part of the printer, the Duplex
Unit can be removed to access the jam area.
WorkCentre 3210/3220 Multifunction Printer Service Manual
Duplex Unit
s3210mfp-129