2 Replacing the developing unit

(Video: Replacing the developing unit)

1. Remove the drum unit.
2. Replacing the drum unit
2. Remove the shoulder screw [1].
3. Set A of the developing unit to meet B of the rail to remove the developing unit [2].

4. 

4. Remove two screws [1], and remove the toner supply duct [2].

5. 

5. Take out the new developing unit from the packaging.
6. Remove the tape [1] and the mounting parts [2] of the new developing unit.

7. 

7. Attached the two springs [1] and the shutter [2] for the included mounting parts to the new developing unit.

8. 

8. Remove two screws [1], and remove the cover [2].

9. 

9. Mount the toner supply duct [2] removed in step 4, with two screws [1] to the new developing unit.

10. 

10. Take out the new developing unit from the packaging, and remove the tape [1] and the mounting parts [2].

11. 

11. Align the position of the section A of the developing unit with the screw hole of the rail, and pass the section B of the developing unit under the rail.

12. 

12. Align the position of the section A of the developing unit and the section B of the rail, and place the developing unit [1] on the rail of the main unit.
13. NOTE
• The rail positioning plate [3] should be set in the cutout section [2] of the developing unit.

14. 

13. Fix the developing unit to the rail using the shoulder screw [1].

14. 

14. Remount the drum unit.
15. Replacing the drum unit
15. Select [Service Mode] -> [Imaging Process Adjustment] -> [Gradation Adjust] and carry out gradation adjust.