Brother DCP-9040CN Bedienungsanleitung

1 Ver. 122009

CLEANING THE DRUM UNIT

DCP9040CN, DCP9045CDN, HL4040CN, HL4040CDN, HL4070CDW, MFC9440CN,

MFC9450CDN & MFC9840CDW

The following is a procedure for cleaning the drum unit using either a medical alcohol swab (available at local

retail pharmacy or drugstore) or a cotton swab that has been moistened with Isopropyl alcohol. Warning:

Isopropyl alcohol is flammable and should be kept away from fire or flame.

Please note that this cleaning process may have to be repeated several times to remove certain kinds of foreign

material from the drum unit surface.

In some cases, the foreign material can not be removed and the drum unit will require replacement.

1. Turn off the machine’s power switch.

2. Unplug the telephone line cord first (if

applicable), disconnect all cables, and

then unplug the power cord from the AC

power outlet.

3. Press the front cover release button and

then fully open the front cover.

4. Grasp the green handle of the drum unit.

Lift the drum unit up slightly and then pull

it out until it stops.

2 Ver. 122009

5. Release the gray lock lever (1) that is on

the left side of the machine. Lift the front

of the drum unit and pull the drum unit

completely out of the machine using the

green handles on the drum unit.

CAUTION

Hold the handles of drum unit when you carry it.

DO NOT hold the sides of the drum unit.

CAUTION

We recommend that you place the drum unit on a

clean, flat surface with a piece of disposable

paper underneath it in case you accidentally spill

or scatter toner.

3 Ver. 122009

6. Hold the handle of the toner cartridge and

pull it out of the drum unit. Repeat this for

all of the toner cartridges.

CAUTION

We recommend that you place the toner

cartridges on a clean, flat surface with a piece of

disposable paper underneath it in case you

accidentally spill or scatter toner.

Handle the toner cartridge carefully. If toner

scatters on your hands or clothes, wipe or wash it

off with cold water

immediately

To avoid print quality problems, DO NOT touch

the shaded parts shown in the illustrations.

4 Ver. 122009

7. Turn the drum unit over by holding the

green handles. Make sure that the drum

unit gears (1) are on the left hand side.

8. Look at a print sample to identify the color

causing the problem. The color of the

spots or print defect is the color of the

drum you should clean. For example, if

the spots or print defect is cyan, you

should clean the drum for cyan. Put the

print sample in front of the drum, and the

find the exact position of the poor print.

NOTE

The Cyan drum will be closest to you then further

out will be Magenta, then Yellow and Black will be

the farthest from you.

CAUTION

The drum is photosensitive and should not be

touched directly with your fingers or hand as it will

result in body oils being applied to the drum unit.

DO NOT attempt to clean the surface of the

photosensitive drum with any sharp object.

9. Turn the drum unit gear toward you by

hand while looking at the surface of the

drum (1).

10. When you have found the mark on the

drum that matches the print sample, wipe

the surface of the drum gently with a prep

pad or cotton swab until the dust or paper

powder on the surface comes off.

11. Allow the alcohol to evaporate from the

drum surface before continuing. In some

cases there maybe several areas on a

drum that require cleaning.

5 Ver. 122009

12. Turn the drum gear towards you enough

times to inspect the entire drum surface.

Use the numbers next to the drum gear

as a reference to ensure the drum has

been rotated completely.

13. Turn the drum unit over by holding the

green handles.

14. Reinstall the toner cartridges by holding

the handle of the toner cartridge and slide

the toner cartridge into the drum unit.

Make sure that you match the toner

cartridge color to the same color label on

the drum unit, and make sure that you

fold down the toner cartridge handle (A)

once the toner cartridge is in place.

Repeat this for all the toner cartridges.

6 Ver. 122009

15. Put the drum unit back in the machine as

follows.

a. Make sure that the gray lock lever

(1) is in the up position and put

the drum unit in the machine.

Push down the gray lock lever (1).

NOTE

When you put the drum unit in the machine,

match the green guides (1) of the drum unit

handle to the green arrows (2) on both sides of

the machine.

7 Ver. 122009

b. Push the drum unit in until it

stops.

16. Close the front cover of the machine.

17. Reconnect all cables and the telephone

line cord (if applicable).

18. Plug the AC power cord into an AC outlet,

and then turn on the machine’s power

switch.

19. Test the machine by printing a document.

Compare this print result to prior prints to

see if the quality has been improved.

NOTE

In some cases it maybe necessary to repeat

the cleaning process. If the issue can not be

resolved, the drum unit will have to be

replaced.

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