Fuji Xerox ApeosPort Print C5570 Reference Manual page 174

3.
Pinch and hold the knob on both sides of the conveyance box and remove the box.
Note
 Stand the box upright on a level surface.
4.
Turn the stopper of the drum cartridge (R1, R2, R3, R4) displayed in the message to the right.
Note

The illustrations in this section explains how to replace the drum cartridge R2, as an example.
5.
Press the tab to release the lock.
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8 Maintenance