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MX-7000N  MX-5500N/6200N/7000N  1 – 5

1)

Remove the optical unit fixing screw and remove the note
label.

1)

Pull out the tray, and remove the rotation plate fixing material
and the tray note label.

(Tray 1, tray 2)

(Tray 3, tray 4)

2)

Attach the removed fixing material to the position shown in the
figure for storage.

1)

Release the lock, and open the right door.

2)

Lower the pressure release lever to apply more pressure.

NOTE: If the machine is left unused for one month or more, the

heat roller rubber may be deformed. In such a case,
release the pressure by pushing up both levers.

MX-7000N  MX-5500N/6200N/7000N  1 – 6

1)

Open the front cover.

2)

Check that the lock is released. 
When the lock is not released, turn the blue screw counter-
clockwise, and check that the lock is released as shown in (A).
* Failure to complete this step may damage the primary trans-

fer belt.

3)

Hold the drum fixing knob by the hand to not rotate, remove
the screw, and remove the drum fixing knob.

4)

Pull out the fixing cover.

5)

Loosen the screws, and open the cover of the process section.

6)

Release the fixing screw. (1position for each color)

7)

Pinch the knob and remove the development unit.

8)

Remove two fixing screws of the DV cover.

A

MX-7000N  MX-5500N/6200N/7000N  1 – 7

9)

Hold the sections (A), and remove the DV cover in the arrow
direction.

10) Supply developer in the development unit.

* When infusing the developer, use an extreme care not to

drop developer on the drive section (marked with {).

11) Install the DV cover in the arrow direction.

* When installing the DV cover, be sure to engage the pawls

with the bosses.

12) Fix the DV cover with the two screws.

13) Shake the development unit horizontally a few times.

* When supplying developer, do not tilt the development unit.

MX-7000N  MX-5500N/6200N/7000N  1 – 8

14) Install each development unit.

15) Fix it with the fixing screw.

1)

Loosen the fixing screw.

2)

Hold the knob and remove the development unit.

3)

Remove the screws, and remove the toner hopper unit.

4)

Disconnect the connectors on front side and rear side.

5)

While rotating the MG roller, infuse the developer.