Question about Brother MFC-7820N Printer

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Brother 7820N, printing image repeats?

This started with a generic toner cartridge, so I changed to a Brother cartridge and the problem continued. How can I clear it up?

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  • Anonymous Feb 12, 2009

    went from generic to Brother am getting repeat images???

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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

Posted on Jan 24, 2009

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1 Answer

My printer is printing blank.


Unless drum low warnings have been ignored for a significant amount of time, this is most likely to be a toner cartridge issue.

I would recommend running off 15-30 pages in the hope that this pulls some toner through. Failing this I would recommend replacing the toner cartridge.

Nov 28, 2012 | Brother MFC-7820N Printer

1 Answer

Brother MFC 7820N, I am getting "Toner End Life"


I fail to see why you are covering up the toner sensor led's when you have a new cartridge fitted?
Also if you are using a recycled toner from a very well known uk shop that refills toners and ink then you may well have broken the drive gear that stirs the toner. i have seen this six times and their toners do this.
It could well be one of the pitfuls of recycled toners.

Jul 24, 2011 | Brother MFC-7820N All-In-One Laser Printer

1 Answer

Have a black line on all my scanned files, runs the length of the page, about 1 1/2 inches from the left edge.


To determine if the vertical lines appearing on your printed documents are related to a printing or scanning issue, print a test page by pressing MENU, 4 (Printer), 2 (Print Options), 3(Test Print) and COLOR START.
If the vertical lines appear on the Test Print continue to Procedure A:Cleaning the Corona Wires Inside the Drum.
If the vertical lines do NOT appear on the Test Print continue to Procedure B: Cleaning the Scanner Glass.
Procedure A: Cleaning the Corona Wires Inside the Drum:
NOTE: Brother strongly recommends that customers do not use generic drumunits and/or toner cartridges, or refill their Brother toner cartridge. 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 quality and machine reliability. The Brotherlimited warranty does not apply to any problem that is caused by the useof unauthorized third party drum units, toner cartridges or toner.
A1. Power off the Brother machine using the power switch located on the right side of the machine.
A2. Press down on the front cover release lever and open the front coverby pulling it towards you.
A3. Hold the green handle of the drum unit (labeled 1). Lift the drum unit up and then pull it out until it stops.
NOTE: If you cannot pull the drum unit out, make sure that the front cover is fully open.
A4. Remove the toner cartridges one at a time, by holding the handle of the cartridge and lifting it up and out of the drum unit.
Note: We recommend you place the toner cartridge(s) on a clean, flat surface with a piece of disposable paper underneath it in case you accidentally spill or scatter toner.
A5. Lift the white plastic corona wire cover by lifting the tabs locatedon the right and left side of the cover.
A6. Clean the corona wire inside the drum unit by gently sliding the green tab from left to right several times.
Note: Be sure to return the tab to the home position. If you do not, printed pages may have a vertical stripe.
A7. Close the corona wire cover.
A8. Repeat Steps 5 through 7 to clean each of the remaining three coronawires.
A9. Reinstall the toner cartridge(s):
NOTE: Before reinstalling the toner cartridge, shake the toner cartridgeside to side.
Hold 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. Fold down the toner cartridge handle once the toner cartridge is in place. Repeat this for all the toner cartridges.
A10. Push the drum unit back into the machine until it clicks into place.
A11. Close the front door and power on the Brother machine.
A12. Print a test page by pressing Menu, 4 (Printer), 2 (Print Options),3(Test Print) and Color Start.
Procedure B: Cleaning the Scanner Glass
B1. For safety reasons, power the Brother machine Off using the power switch located on the right side of the machine.
B2. Lift the Document Cover and clean the following with a lint-free cloth moistened with a non-flammable glass cleaner:
a. Run your fingertip over the scanner glass of the flat bed to check for debris. If you feel debris, clean the entire glass area but concentrating in the area in which you felt the debris. (Caution! Do notpress down on the glass very hard.)
b. Run your fingertip over the scanner glass on the left to check for debris. If you feel debris, clean the entire glass area but concentrating in the area in which you felt the debris.
c. The white plastic pad located on the underside of the Document Cover
d. The white plastic pressure bar located to the left of the white plastic pad.
B3. Close the Document Cover.
B4. Test the machine by making a copy of a blank sheet of paper using the ADF (Automatic Document Feeder) and a copy using the Flat Bed.
a. To make a copy using the ADF, place the document face UP in the ADF, press the COPY mode key located below the LCD display and then COLOR START. If the problem continues,repeat Steps 2b and 2d at least 3 additional times.
b. To make a copy using the flat bed, lift the Document Cover of the flat bed, place the document face down on the scanner glass (make sure the ADF is empty) and close the Document Cover. Press the COPY mode key located below the LCD display and then COLOR START. If the problem continues, repeat Steps 2a and 2c at least 3 additional times.

Oct 29, 2010 | Brother MFC-9440CN Laser Printer

2 Answers

My brother MFC-7820N printer was printing very light so I took out the toner shook it from side to side now it is printing very dark with shadow images of the text


You might have gotten toner on the corona, take the toner/drum unit out there is a blue knob. slide that a couple of times and try it.

Aug 30, 2010 | Brother MFC-7820N All-In-One Laser 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

2 Answers

Ghost printing


Hello,

You have a worn image drum. The drum is the part of the printer that the print image is created on before it transfers the toner to the paper. This part is coated with a very thin layer of Teflon so the toner does not stick. When it gets worn the toner starts to stick and that produces the shadow or ghost image approximately 3 inches down the page because the diameter of the drum roller is 3 inches. You will need to get the part DR-350, Office Depot has them as well as many places on the internet.

I hope this helps, if so please rate our solution.

Buddy
Corporate Computer

May 14, 2010 | Brother MFC-7820N Laser Printer

1 Answer

Brother MFC 7820N Printed paper has toner ink layered on paper


you can remove the toner and drum from the machine, slide the tab back and forth about 20 times then blow in the slot. when you put it back in the machine if the problem keeps happening it would be a problem with the toner cartridge and it would need to be replaced

the reason this happens to toner cartridges is because the rubber roller tarts to wear out.

Mar 05, 2010 | Brother MFC-7820N All-In-One Laser Printer

1 Answer

How do I clean the drum on the Brother MFC-8440


It should be constantly cleaned by it's cleaning blade with every revolution. If that's not making continuous contact inside the drum unit, then it's time to replace the drum. The symptom to look for is not just a gray background, but images that repeat about 3 inches down the page as the drum rolls around to that point again.
If the background is gray without noticeable repeating image, it may be a defective toner cartridge. We've wasted a fair amount of money replacing Brother drums when it turned out to be the much cheaper toner cartridge. If it's a new cartridge, take it back to the store along with before and after print samples.

Jan 21, 2010 | Brother MFC-8440 All-In-One Laser Printer

1 Answer

Brother MFC-7420 just started printing a shadow image


Sounds like a bad drum cartridge. Pull the toner/drum cartridge out of the machine and set it down. Press down on a (blue?) tab to release the toner cartridge, and you can lift the toner cartridge out of the drum cartridge. There is a cleaning blade in there - a soft plastic blade that rides against the drum and scrapes off toner that didn't get transferred to the paper. If it gets stuck off the drum surface, images repeat a few inches (one drum circumference) down the page.

A new DR-350 drum unit should fix it. have the machine's power on when replacing it. While the door is open, touch the CLEAR key. The display will read "REPLACE DRUM?" or something like that. Press 1 for Yes.

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1 Answer

Brother MFC-7820N Toner Problem


Open the cover, press Options and then *00.

Apr 22, 2009 | Brother MFC-7820N Laser Printer

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