Canon iR4570 Series Service Manual page 659

8) Remove the drum unit [1].
- Do not touch the surface of the photosensitive drum.
- Do not expose the surface of the photosensitive drum to light more than necessary.
- Do not touch the spur of the drum unit.
9) Disconnect the connector [1], and detach the developing assembly [2].
F-12-11
F-12-12
Chapter 12
12-15