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

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I have a Brother MFC 7420 with a bad paper jam in the back

It says open the back door and I can't get it open. I don't want to force it and break it and run into the same problems some of the others are facing. I can't seem to pull the paper through from the front after removing the drum and all. From the picture in the manual it looks like it should just swing open but it doesn't, it seems hooked on something. Help Help I need a white knight.

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White knight to the rescue. the back door is quitew tight to open. pull it open with a firm **** of the hand.there you will see the paper jam. pull the paper out slowly as not to break the paper sensor in the back. let me know how it went. brother tech

Posted on Jan 13, 2009

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Paper jams brother mfc 7420


Paper Jams are routinely caused by bad roller in the printer. The Heat of laser printers can render these rubber roller pretty useless in a couple of years or less if you print often. If you have recently replaced the drum (according to the recommended print output number), Then If an $80 dollar roller + labor is worth it to you, go for it, otherwise buy a new printer and Brother gives the best ink value per page. hope this helps.

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I have a paper jam in my MFC -7420. I removed a sheet from the back but there is more stuck in the front. The message says to open front cover and remove drum. I have opened the front cover but...


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just simply remove the drum and toner cartridge together.

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Turn off the Printer. Remove the drum and toner from the front cover. Remove the toner from the drum. Look inside machine incase of possible paper jam. Open back cover and paper tray incase of jam. Close all doors and put toner and drum back in machine. Turn on the printer, and see if the error message is gone.

Apr 04, 2010 | Brother MFC 7420 All-In-One Laser Printer

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Brothers MFC 7420 keeps displaying Back Door Open. Have cleaned etc. everything suggested on help websites, nothing works. Help coxmwc@aol.com


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Oct 02, 2009 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

Brother MFC 7420 keeps saying - back cover open - close thre back cover? How do I reset the printer orf find the underlying fault?


First be sure you close the back cover and remove all the jammed paper. after that, turn off your printer for 1 min to see is it okie.

Jun 10, 2009 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

My MFC-7420 jams paper after each copy what is the problem.


First you need to clean up the drum and inside the printer.
after that if still jamming paper.
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2 Answers

Message on brother MFC7420 "back door open" when it's not


Actually, you need to double check the back cover and front cover, open them all to check all paper jam.
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be sure to close the front cover at the last cover to close.

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1 Answer

''Back door open, please close back door'' - back door is closed


This Error Is Reoccurring On All These Units Open Close Back Door Then Unplug For 30 Seconds And Then Plug It Back In. Check For Error.

The Brother Website Says To Check The Paper But Almost All Of These People Have Checked For Paper Problems And For Jams With No Result.

Jan 14, 2009 | Brother MFC 7420 All-In-One Laser Printer

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