Question about Brother MFC 7420 All-In-One Laser Printer

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Error messages but I can't find the errors

I keep getting the error about taking the drum out - sliding the blue tab from side to side and then put drum back. I have done this several times
I have put in a new toner cartridge.
also when I tried to copy a sheet it kept telling me I had a paper jam and I have checked several times - no jam
I just got the printer and installed it on my HP xp

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  • saionfixya Apr 12, 2009

    "Drum Error - Take drum out slide the blue tab from side to side several times, return the tab to (^), put drum back." This is what I got the error message from Brother DCP-7010


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Ona brand new machine you get a starter cartridge, you will need to put in a new cartridge

Posted on Feb 16, 2009

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Here's how I fixed it. Remove assembly from printer, and remove the toner cartridge. Using cotton balls, wipe the drum clean, turning it a quarter turn each time between wipes. When you have a clean drum, replace everything, and it should work fine till next time.

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Unit has about 20k copies. Just replaced toner and drum. Keep getting "drum error", and tells me to take out drum and slide blue tab back and forth, which I do. Then when I put the drum back...

Install the drum unit and toner cartridge
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The printer says drum error,slide the blue tab from side to side,when I have done this the printer works but the repeats the error sign again.

Same problem-
1st- take out drum & toner assembley- with open door - press OPTIONS - then #1 - reinsert
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2nd - I sprayed canned air on the drum wire assemble (where our favorite 'blue' tab slides) the toner builds up; then I gentle wiped the drum in a horizontal direction while manually turning the drum several times.
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Nov 24, 2010 | Printers & Copiers

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My printer is giving me a message as follows drum error- take out drum and slide blue tab from side to side a few time. where is the drum?

When you open the door in front pull out the drum/toner assy. You will see a blue piece on top left side. It will slide right and left. Do it 5 times. Leave it all the way to the left and reinstall it. steven 818-888-0006

Mar 15, 2010 | Brother MFC-7820N Printer

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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.

Dec 15, 2009 | Brother HL 2140 Laser Printer

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Having replaced cartridge now says drum error, remove drum and slide blue tab. How do you remove drum>

The drum is the piece that holds the toner cartridge. Once you remove it you'll see a pale blue tab at the rear of the drum unit. Slide it side to side a couple of times to clean debris from the drum area.

Dec 08, 2009 | Brother DCP 7010 Multifunction Laser...

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Brother 4070 CDW Drum Unit Error

The green tabs that you have to slide are under the color cartridges, so remove the three color cartridges and you will see three green tabs, to slide the tab across the wire you have to first open the translucent plastic wire cover, then slide the green tab across the wires and return it to it's original position, close the wire covers, replace the color cartridges, and reassemble the printer. All the Best

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Brother Printer MFC-7420

Open the front cover and take out the toner/drum unit. On the top of the drum unit you will see a blut tab that you can slide side to side. Do this 10+ times and this should fix your issue. Make sure to put the blue tab back in the original start position which is believe is to the left on that model.

Sep 06, 2008 | Brother MFC 7420 All-In-One Laser Printer

3 Answers

Toner/drum problems

This seems to happen some of the time. Brother has an FAQ for this:

1. Verify the toner cartridge is installed correctly by following the
steps listed below:

a. Open the front cover.

b. Lift the drum unit slightly and pull it out. Place the drum unit on
adrop cloth or large piece of disposable paper to avoid spilling and
scattering the toner.

c. Remove the toner cartridge from the drum by holding down the lock
lever (blue tab) on the left side of the drum unit and lift the toner
*Handle the toner cartridge carefully. If toner scatters on your hands
or clothes, immediately wash it off with cold water.

d. Gently rock the toner cartridge from side to side five or six times
to distribute the toner evenly inside the cartridge.

e. Place the toner cartridge into the drum (be sure it clicks into

f. Clean the primary corona wire inside the drum unit by gently sliding
the blue tab on the top of the cartridge from right to left several
times. Return the blue tab to the home position before reinstalling the
drum unit assembly.

g. Reseat the drum unit into the machine.

h. Close the front cover.

2. If the message "Toner Life End" continues to appear on the display,
contact Brother Customer Service at 1-877-Brother (276-8437) Monday
through Friday, 9:00am - 7:00pm EST, excluding holidays.

May 12, 2008 | Brother MFC 7420 All-In-One Laser Printer

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