Brother MFC 7420 All-In-One Laser Printer Logo
Posted on Jun 10, 2009
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Brother MFC 7420 keeps saying - back cover open - close thre back cover? How do I reset the printer orf find the underlying fault?

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Yuk-Wa Chan

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  • Expert 133 Answers
  • Posted on Jun 14, 2009
Yuk-Wa Chan
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Joined: May 19, 2009
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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.

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Related Questions:

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My brother mfc 7420 says that the back cover is open

When this happens it is just telling you to go through the steps of opening and closing the back cover. The back cover may not be completely closed.
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Brother MFC 7420 printer says back cover open...close back cover, but nothing is open

hello there


try this remove the toner of the printer and put it back again and closed properly make sure door close and turn off the printer remove the power plug from the outlet and ppower cord from the printer and wait for some time and turn it back on.

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Simply open the front cover.

Press the Options key on the control panel.
The display will show "REPLACE DRUM - 1.YES 2.NO".

Press 1 to reset the drum count.

Close the front cover.

This procedure wil work on the majority of the Brother MFC series of laser based Printer Scanner Fax Facsimile machines.

Good Luck and Thank You for using Fixya
WheatlandServices
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Message: Back cover open. Close the back cover.

You might have to turn it off and turn it back on to reset the message. I have a Brother MFC-240C and it does the same thing.
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It says close back cover but back cover is already closed

Open the front cover and remove the drum and toner(cartridge) There should be a paperjam in the machine. It reads back cover open because the piece of paper is covering the sensor for the back cover.
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Replaced Drum still says "Replace Drum Soon". How do I reset on a Brother 7420? BEWARE SPAM NUMBER 1-800-532-4187

Reinstall the new drum unit, keeping the front cover open. Press OPTIONS. Press 1 when the display shows REPLACE DRUM? 1.YES 2.NO ACCEPTED. Close the front cover.
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Message on brother MFC7420 "back door open" when it's not

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

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RESET DRUM

Open the front door where you put the toner/drum unit in the machine. Press options then press 1.
Close the door.

Counter reset!
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