Question about Brother MFC-7820N All-In-One Laser Printer

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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

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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.

Posted on Aug 30, 2010

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Posted on Mar 28, 2017

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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

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

Toner on my mfc-7820n brother printer is full, but it won't print dark. VERY light only. any ideas?


Hello, I can solve this problem and get your machine back in working order. My fee is $50 for labor and part plus shipping. Let me know if you are inst rested.

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

1 Answer

Someone shook the toner before putting it in the printer and now i have toner powder on the pages when i try to print. how do i clean it out?


Pull the drum and toner cartridge out and spray inside of printer with canned air. Make sure you keep the can upright when spraying. Uncllip toner from drum and spray the area on the drum where the toner clips on. Move the corona cleaner from one side of the drum to the other a couple times, reseat toner in drum, put cartridge back in printer and print a few pages to remove toner that may have settled after spraying.

Apr 17, 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

Print problems with brother MFC-8860DN


Replace the drum. The drum is failing.
When you replace the drum open the front door of the machine where thr drum and toner is.
Hit the clear/back button. Press 1
That resets the drum count after you replaced the unit.

Good luck!

Nov 12, 2008 | Brother MFC-8860DN Printer

1 Answer

Printed pages look dirty


That black dust that fell out is the toner. When you shake a toner cartridge that shouldn't happen. It looks like you have a faulty toner cartidge and that need to be replaced! Now to make your printer prints cleanly and clearly after you replace the cartridge, you'll need to get someone to service the printer(the faulty toner cartridge more than likely spilled toner on your internal printer parts, cause the smudges). Sevicing would mainly entail, taking down the printer and removing any spilt toner! If you feel you are up to this, be cautious, because toner can be hazardous to your health if you accidentally breathe it in! hope this was helpful! regards babb

May 10, 2007 | Brother MFC-7820N Laser Printer

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