Canon LBP7200Cdn Service Manual page 54

Chapter 3
2) Remove 2 stoppers [1] and then 2 link arms [2].
3) Open the duplex feeding unit [1].
4) Remove 2 claws [1] on the lower rear cover using a flat head screwdriver.
3-2
F-3-7
F-3-8
F-3-9
5) Close the duplex feeding unit [1] and rear cover lib unit [2], and remove
the lower rear cover [3] in the arrow direction.
6) Remove 2 link arms [1] from the lower rear cover.
F-3-10
F-3-11