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

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Back cover open error message MFC 7820N

There was a paper jam but now this message will not go away or let me print!  Help deadlines etc.

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Good solution -- can u explain a little more in detail?

Posted on Sep 02, 2009

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Reseat inner rear paper guide to allow sensor to home correctly

Posted on Mar 09, 2009

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1 Answer

Message of back cover open


If you turn the printer off and then back on with a paper jam in it you will get this error message instead of a paper jam message. To clear the paper jam from the back of the printer read the instructions from here: http://welcome.solutions.brother.com/BSC/public/us/us/en/faq/faq/000000/000600/000096/faq000696_001.html?reg=us&c=us&lang=en&prod=mfc7820_all&Cat=11

Feb 23, 2011 | Brother MFC-7820N Printer

1 Answer

Back cover open close the back cover


If you turn the printer off and then back on with a paper jam in it you will get this error message instead of a paper jam message. To clear the paper jam from the back of the printer read the instructions from here: http://welcome.solutions.brother.com/BSC/public/us/us/en/faq/faq/000000/000600/000096/faq000696_001.html?reg=us&c=us&lang=en&prod=mfc7420_all&Cat=11

Dec 03, 2010 | Brother MFC-7820N Printer

1 Answer

MFC 7820n 'close back door error'


Hello Daysinn,

The "back cover open" message is usually caused by a paper jam inside the printer.
Follow these steps to rectify the problem.

1. Unplug the power to the printer.
2. Open the back and front cover.
3. Remove the drum and toner, this may be difficult because it may be stuck; don't be afraid to pull hard, you wont break anything.
4. Check for any foreign objects, most likely a peice of paper.
5. Reinstall the drum and toner.
6. Make sure to close the front and back covers.
7. Turn the power back on.

If the message stays after all this, there may be a sensor not working.

Thanks,

Pat

Mar 25, 2010 | Brother MFC-7820N All-In-One Laser Printer

2 Answers

I cannot get the BACK COVER OPEN message to GO AWAY. I tried to open the back black cover and check to see if there were any paper jam and i also opened the front cover and ejcted the ink toner and no...


There is a little cover there that has a sensor flag on it. It is most likely in a jammed position. If you are able to carefully take the cover out, you can bend it slightly, readjust the sensor flag, and reinstall it.

Thanks

Mar 12, 2010 | Brother MFC-7820N Laser Printer

1 Answer

Won't print; model 7820n; message: back door open, close back door; need help my brother 7820 continues to not print with the messgge :back door is open and it isnt. Also the printing keeps folding up...


first check and make sure that the back diir sensor is in place next if the paper is not going all the way in to the fuser section, you will have to remove the fuser and take it apart and remove paper in it, the paper is probally holding down the fuser sensor in side of it good luck brother sr, tech

Jan 18, 2009 | Brother MFC-7820N Printer

2 Answers

Continual paper jams in rear of printer


If the paper is jamming at the exit rollers, you will be need to clean the rubber on the rollers. It gets shiny and does not grip the paper to take it away.

Jan 03, 2009 | Brother MFC-7820N Printer

1 Answer

Back cover open message on brother mfc 7820n


Had same problem. Closer inspection revealed bit of paper out of sight. Removed the toner cartridge and worked to free torn paper. Then restart. Hope it helps.

Dec 15, 2008 | Brother MFC-7820N Printer

1 Answer

Back cover open message on brother mfc 7820n


http://www.fixya.com/support/t150137-one_more_person_back_cover_open_problem

Oct 24, 2008 | Brother MFC-7820N Printer

1 Answer

MFC-7820N error message: back cover open; close back cover. The back cover is closed but error message will not go away and I can not print. Thank you.


There is a little black lever in the middle that needs to be re inserted properly. (like a little black stick in the middle.  Needs to slide to the left or right.   See more of this one the site.   It solved it for me.

Jun 21, 2008 | Brother MFC-7820N All-In-One Laser Printer

1 Answer

Back cover Open was the message on my screen


This suggests that the micro switch that controls the opening/closing signal to that 'door' is malfunctioning. Open the door,find the switch and manually press it right in then whilst holding it in - try to operate the machine.

May 28, 2007 | Brother MFC-7820N Laser Printer

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