Canon iR6570 Series Installation Procedure page 54

Chapter 1
2) Remove the 6 screws [1], and detach the upper rear cover [2].
3) Remove the 6 screws [1], and detach the lower rear cover [2] from the bottom of the machine.
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[1] [2]
F-1-97
[2]
[1]
F-1-98
[1]
[2] [1]
F-1-99
[1]
[1]
[1]
[1]