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I have a Bothers 7840 W. Message keeps popping up saying "drum error clean corona wire" and after I clean it by sliding green lever back and forth sveral times as instructed in manual the message still pops up. I therefore cannot print anything.

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  • beckvanii Sep 16, 2010

    The lever on the drum unit on the Brothers 7840W is green. The manual says that to clean the corona wire you slide the green lever back and forth several times. I did that repetredly and the message still keeps popping up.

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Hi there
I would request you to check and see if the Toner LED is on. Please check if the drum unit assembly is installed correctly. If not, take the drum unit out and put it back in.Please ensure it fits well in it's place. If the drum unit assembly is rightly installed, and still the Toner LED is on, the toner cartridge is empty. Replace the toner cartridge with a new one.
This will resolve the issue you are facing. If this doesn't work for you, please comment and let me know, and I will be more than happy to assist you to further resolve your issue.
Regards

Posted on Sep 16, 2010

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Kindly recheck your manual the colour of the drum is red not green. The green roller inside the cartridge is not the drum roller. It's situated at the back side of the printer.

Posted on Sep 16, 2010

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1 Answer

Printer keeps saying to clean the corona wire. I cleaned it several times but the message keeps popping up.


To clean the corona wire in the brother laser printer, it said to remove the drum/toner assembly from the printer. This is very easy to do, you simply pull down the front of the printer, and press a small green tab down and pull. Then the toner and drum assembly will quickly come out.
After that, it says you must clean the corona wire by moving a small green square back and forth several times. It seemed kind of strange to me, but I did it anyways. In the upper right corner of the drum/toner assembly, there is a small green/blue square that can be moved back and forth. I did this several times.
I then placed the unit inside, and the error message went away for a minute. However it still wouldn't print and the error message came right back up. I was a bit frustrated since I have only owned this printer for about 2-3 months.
But then I realized something: The toner button had been blinking for about a month. I had already purchased a high yield black toner cartridge for the brother laser printer (Tn-330/TN360). I purchased it online, and had it stored for when I eventually ran out of toner.
I thought perhaps the error message had something to do with the old toner. Maybe it was out?? So I once again opened the front of the laser printer, and removed the toner/drum assembly. I pressed a green tab, removed the old toner, and then added the brand new high yield black laser toner cartridge. The whole process was very simple (you gotta love today's technology).
I then quickly "cleaned the corona wire" a few times again just to be safe. I re-installed the toner, and the printer was up and running. So apparently it will throw this error when you are out of toner. Now the printer is running great again, and I really like this printer.
If you are still using an ink jet printer, then you are living in the stone age. I was reluctant to buy a new laser printer, but now I love it. The toner only costs $30-60 and lasts for months. I print hundreds of labels out each month-just to give you an idea of how long it lasts.or get more information Call +877 889 6859 for detail.

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1 Answer

Only part of page is printing on incoming faxes


Remove the toner/drum cartridge and slide the corona wire cleaning lever (green) back and forth several times. Re-insert and run a test. you may have to do this a couple of times.

Jun 25, 2010 | Brother IntelliFAX 4750 Plain Paper Laser...

1 Answer

The fax machine is saying remove the drum there is dust on the corona wire.


Use the corona cleaning wire to clean the dust off. Open the front cover. Remove the drum/toner unit. look on the right side of the drum portion above the toner unit for a plastic tab with a triangle arrow that points to the left. Slide this tab back and forth several times. Move the tab back to the right. Reinstall the drum/toner unit. Close the front cover.

Clean the corona wire in this manner every time you change the toner/drum.

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My brother MFC9840cdw has an error message that says, "drum error, slide the green tab on each of the colored drum units. Refer to the users guide". I have tried sliding the green sliders several times. I...


The guy that replied solved the problem. He rocks and I can't believe that brother does have a large posting on this issue. Sham on them:
ben2913 did the job "This is NOT the solution to this error code. The code is telling you that the Corona wire must be cleaned. Remove all 4 color drums. Look down into the tray that you removed them from and you will see 4 green tabs. Open the plastic cover that protects the corona wire and move the green tab back and forth several times. After you have done this with all 4, reinstall the drums, close the machine front and everything will work fine again."

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1 Answer

Fax message says dust on the drum - clean the corona wire


You should find a BLUE SLIDER on top of the Drum Unit, work it back and forth 10 times.

Feb 02, 2010 | Brother IntelliFax-2820 Laser Fax

1 Answer

When I turn it on I get a message to clean the wire on the drum. I clean it but I still get the same message. I just replaced the drum a month ago. I cannot use the printer because this message keeps...


You run the little blue tab back and forth about 20 times, use a can of air to blow toner out of that area, if it doesn't help, you need to wipe the corona wire carefully with a q-tip. Also wipe the electrical contacts on the sides of the drum and inside the printer on the right and left sides where the drum sits. After all that press go 3 times for a printout and see if it is telling you the drum clean error, it will show the last 10 errors.

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1 Answer

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The driver should pop up a error message. Possibly is due to clean corona wire. Slide the blue lever several times across (at the drum unit).

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2 Answers

Same problem even with new Brother drum


Did you replace the drum or the toner cart? The drum has a blue lever that you slide back and forth around 20 times to clean the corona wire. I sometimes use a cotton swab with alcohol to gently clean this wire as well.

Jun 23, 2009 | Brother MFC 8500 All-In-One Laser Printer

1 Answer

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The drum is the larger plastic unit that slides out an the toner cartridge fits into it. The corona wire is the very fine wire at the front top of the drum. Just slide the little cleaning tab back and forth.

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2 Answers

Cleaning message


the drum unit may have a full waste toner hopper, I am not sure but defintely do not clean, or touch the drum, you may touch the the drum unit which has a corona wire which occasionally may need cleaning by running a wand across it. there should be a colored clip that will slide back and forth on the drum catridge to clean it.sorry i couldn't be more helpful without actually seeing it.


Thank You,

Mikey

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