Question about Brother DCP-7020 All-In-One Laser Printer

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Black line in center on manual feed

Thi i ssimilar to an issue with the Brother MPC 7820n I had.  I can't remeber the resolution tho.
The drum and toner have been replaced, and we get this line in the center of the page ONLY on manual feed.  Print test pages are great quality.
Any direction would be gretaly appreciated !

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Re: black line in center on manual feed

If you are getting marks on copies but not prints then it is the small slit of glass prior to copy glass that is marked/dirty

Posted on Nov 16, 2007

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We've tried 2 new toners in the Brother 7820n and still get the same error...Change Drum Soon. We've turned it off, slid the blue arrow to clean the drum wires, still won't work...please advise....

Open front cover where drum/toner goes in
Press "Options" key on control panel
LCD will display "Replace Drum 1. Yes 2. No"
Press 1 to reset drum
Close front cover

Nov 09, 2010 | Brother MFC-7820N All-In-One Laser Printer

1 Answer

Brother MFC 7820N Toner life end with new toner

I found the following post on another site. It appears to work. If you want to reset your Brother MFC 7820N machine so you no longer have the error message: Toner End of Life, do the following:

1. Open the front cover of the 7820N, that is, the cover that allows you to pull out the toner and drum, but don't pull out the drum/toner.
2. Push the button: Options (located on the left of the control pad).
3. Type: *00 on the keypad.

The Brother MFC 7820N should be reset and the Toner End of Life message should disappear. WARNING: This may void your warranty and ultimately damage your machine if you are reusing or refilling your cartridges, but you should already know that. Hope this helps.

Sep 07, 2010 | Brother MFC-7820N Printer

1 Answer

I refiilled tho toner cartrage with a generic toner as i have bin doing for years,and it still says tonen life end. i know that in the past when i bought generic toner it came with instuctions how to reset...

Open the front cover of the machine, press the clear/back (or options) button. it will say replace drum? press *00 close the front cover

this will reset the toner cartridge for you.

Jul 01, 2010 | Brother MFC-7820N Printer

1 Answer


If the paper light is flashing (not steady) please follow the steps bellow:

The Paper LED flashing can be caused by no paper in the manual feed slot, a paper jam, the front cover is open, the back cover is open, dust on the drum, a memory full error, a print overrun error or not having a drum installed.

Note: Be sure that a toner AND drum assembly is installed in the machinebefore continuing. A machine may exhibit a jam message if a drum or toner isn't installed or isn't installed properly. The drum is a separate part from the toner cartridge and the two parts fit together tomake the drum and toner assembly. The problem may also happen from using non-Brother supplies.

To clear the Paper LED flashing, follow the steps listed below:

Brother strongly recommends that customers use only genuine Brother drumunits and/or toner cartridges. Each Brother laser printer is designed to work at pre-set temperatures that are matched exactly to each of our individual toner formulations. Each individual component is designed to work with the other to ensure quality and reliability. Using non-Brother supplies may affect the hardware performance, print qualityand machine reliability. The Brother limited warranty does not apply to any problem that is caused by the use of third party drum units, toner cartridges or toner.
Warning: If you just used the machine some parts inside the machine are extremely hot.

1. If the paper source setting of the program you are printing from or the Brother printer driver is set to Manual feed, the Paper LED will flash prompting you to load a sheet of paper, an envelope, or a label inthe manual feed slot of the printer. It can also be caused if the document you are trying to print was created as a letter, mailing, or label.

2. Using both hands, slide the manual feed slot paper guides on the front of the printer to the width of the paper that you are going to use.

3. Using both hands, put one piece of paper in the manual feed slot until the front edge of the paper touches the paper feed roller. When you feel the printer pull in the paper, let go and the printer will print the document. If the Paper LED continues to flash and the printer does not pull in the paper, this issue was not caused by a manual feed command, continue with trouble shooting.

4. Open the front cover by pulling the tabs on the left and right side of the printer towards you.

5. Remove the drum/toner assembly by lifting it up slightly at the center and pulling it out to the front. Place the drum/toner assembly ona piece of disposable paper or cloth to avoid spilling and scattering the toner.

6. Clean the primary corona wire inside the drum unit by gently sliding the blue tab on the top from right to left and left to right several times. Return the blue tab and snap it into the home position. If you don't, printed pages may have a vertical stripe.

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

8. If there is paper in the drum unit, gently remove it.

9. Examine the inside of the printer where the drum was installed. If there is paper inside the printer carefully remove it.

10. Reset the toner cartridge into the drum unit (be sure it clicks into place).

11. Reinstall the drum/toner assembly into the printer.

12. Close the front cover. If the Paper LED is still flashing, continue with trouble shooting.

13. Turn the Brother printer around with the back of the printer facing you.

14. If the back cover is open, close it securely. If the Paper LED is still flashing, continue with trouble shooting.

15. Open the back cover.

16. Open the black plastic inner chute by pressing on the release tab located on the right side of the chute.
Note: The inner chute has a diagram on it of a piece of paper being removed from the printer.

17. If there is paper inside the printer carefully remove it.
NOTE: If paper is wrapped around the orange roller do not try and removeit. The printer has a one year limited exchange warranty. If the printeris in warranty, call Brother Customer Service at 1-877-BROTHER (1-877-276-8437) for warranty options. If the printer is out of warranty, contact a Brother Authorized Service Center for repair by clicking on the link below:

18. Close the back cover. If the Paper LED is still flashing, continue with trouble shooting.
NOTE: The inner chute will close automatically when the back door is closed.

19. Pull the paper tray completely out of the printer.

20. If there is paper jammed in the paper tray or underneath the printer, gently remove it.

21. Reload the paper in the paper tray. The tray can hold up to 250 sheets of 20 lb paper. Do not over fill the tray. There is a maximum paper mark located on the top of the right and left paper guide. It looks like a V cut out in the plastic.

NOTE: If you are using special paper and the machine has problems feeding it from the paper tray, try loading the paper in the manual feed slot.

22. Put the paper tray firmly back into the printer. If the Paper LED isstill flashing, continue with trouble shooting.

23. To troubleshoot a Memory Full error, press the Go button on the printer to print the data remaining in the printer. Cancel the print jobif you want to delete the data remaining in the printer by pressing theGo button for about 4 seconds until all the LEDs light up. The Ready and Paper LEDs will flash as the job is being cancelled. If this does not clear the error, reduce the print resolution in the Brother printer driver or reduce the complexity of your document. If the Paper LED is still flashing, continue with trouble shooting.

24. To troubleshoot a Print Overrun error, set the page protection in the Brother printer driver to AUTO. Change the following settings in theprinter driver and try again. The best XXXXXXXXXXX XX these settings will vary depending on your document:
Graphics mode
TrueType mode
Use Printer TrueType Fonts

Read more:

May 24, 2010 | Brother HL 5250DN Laser Printer

1 Answer

Prints a black streak whether I copy, or print, not dirty glass on Brother 7820N

Try cleaning the corona wire of the drum unit.

You need to open the front cover of the machine and remove the cartridge (drum and toner) On the top right there is a tab that you need to slide from left to right about 20 times, then bring back to home position

Apr 10, 2010 | Brother MFC-7820N Laser Printer

1 Answer

I have a 7820N. I put in a new drum in January and have printed a few hundred pages. Put in a new toner cartridge after i started getting lines and streaks on the paper. They come and go but are getting...

Hi There,

When you installed your new drum did you reset the drum by.

1 - Opening the front cover.
2 - Press the options button up on the panel.
3 - Press 1 to reset
4 - Close the front cover done.

If the issue persists after resetting your drum contact brother technical support you may have a defective drum unit.



Mar 03, 2010 | Brother MFC-7820N All-In-One Laser Printer

2 Answers


To manually reset the counters, do the following:
  • Open front cover, press "option".
  • Answer Yes (by pressing 1) to the question in the display.
  • Your drum counter is now reseted. Press "option" again.
  • This time, press *, 0, 0.
  • Your toner counter is now reseted too.
(If nothing happens when pressing option, try using the back/clear button instead.)

Jun 15, 2009 | Brother DCP-7020 All-In-One Laser Printer

1 Answer

Brother printer that prints a black line down center

probably a bad drum cleaning blade, It's part of the drum unit

Feb 02, 2009 | Brother MFC-7820N Printer

1 Answer

Brother 7820N, printing image repeats?

have you tried changing the drum unit for a brother oem unoit and oem toner? generic toner and drum will always mess the machine up!!!!!!! good luck brother sr tech

Dec 22, 2008 | Brother MFC-7820N Printer

1 Answer

Black line down middle of page

Clean the inside of the printer with a soft rag, be gentle and get as much toner up as you can, also your toner carttridge may be empty or the crum may be bad, start with a fresh toner carttridge and clean the printer out where the cartridge sits.

Dec 13, 2008 | Brother MFC-7820N Laser Printer

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