Question about Brother MFC-8840D All-In-One Laser Printer

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Scanner locked brother MFC-7420 please help! nothing works. have sound and beeping and messege scanner locked

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  • 133 Answers

The scanner needs to be reset. Turn off the device and then turn it on again.
Please note that when you turn off the MFC's power switch its memory will be cleared. To check whether the MFC has faxes in its memory, click here.

Posted on Nov 27, 2013

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Posted on Jan 02, 2017

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  • 254 Answers

SOURCE: Brother MFC 7420 printer says

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.

thank

Posted on Mar 09, 2011

  • 1 Answer

SOURCE: Refill toner Brother MFC 7420

open front cover, press OPTION button, on the LCD will appear a message "NEW DRUM?" ....DO NOT RESPOND....just type on the keyboard "*00" and there will appear a message "Accepted" and use it in your pleasure.

PS. in any case i blocked with paper labels the viewing windows from transparent plastic on the toner itself....

Mr. Brother, do not try to be smarter than your customer

Posted on Jul 17, 2008

  • 1 Answer

SOURCE: I can't find the back door sensor on Brother MFC-7420

I have the answer. I just fixed mine. The sensor is not really on the door. You have to remove the door by openning it all the way and carefully sliding it out ( one of the pegs holding the door is hourglass shaped. This will slide out first. The other is round. You will see a black flap that covers a red drum. Pull the flap down carefully. There will be a six inch long rod it's about 1/8 of an inch in diameter. It extends from the middle of the flap all the way to the right side. This probably popped out of place. Make sure that it is all the way to the right as this is where the sensor is. There is a little spring on the bar on the left side. This should be straight up and down. if it is not, then you need to fiddle with the bar.
The trick was that the sensor is NOT on the door, but on this inner flap. When the door closes it pushes this flap agains the drum and the little bar activates the sensor.
Please do not applaud so loud, you are ambarrazing me!!! hehehe. Good luck!.

Posted on Aug 11, 2008

  • 320 Answers

SOURCE: error 2001 on brother mfc 7420

please tell me more! i just checked my brother manual and i do not see a error code 2001????????????

Posted on Feb 16, 2009

leroyal
  • 2120 Answers

SOURCE: mfc-7420 Black Line horizontal across paper in 3 places

try moving the small blue slider on top of the drum cartridge side to side 10 times.

Posted on Mar 10, 2009

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1 Answer

HOW DO I un-lock the scanner on a Brother MFC 7420?


Unfortunately, the MFC-7420 doesn't have a physical lock switch. You need to turn off the all-in-one and wait for the unit to clear its memory. If the error recurs after you press the power button again, wait 30 minutes and try again. (Note: you will lose any faxes that are in memory. See the User Guide page 11-5 to save this information.) You can find the manual on the Brother support page for the MFC-7420: https://www.brother-usa.com/support/ModelInfo.aspx?R3ModelID=MFC7420 . Click on the Manuals & Documents tab. Then click on the Manuals on our Online Solution Center for the English version of the manual. The direct link to the User Guide is currently: http://download.brother.com/welcome/doc000387/ALLFB_UsaEngUsr_B.pdf .

You can also try unplugging the all-in-one for several minutes to reset the error codes. If the error persists, contact Brother if the MFC-7420 is still under warranty (1 year). If it isn't under warranty, consider replacing the unit. The repair costs may be unreasonable.

I hope this helps.

Cindy Wells

Jan 09, 2017 | Brother MFC-7420 Printer

2 Answers

I get a SCANNER LOCKED error message on my brother MFC-7420. The manual says to turn the unit off and back on but that does not clear the error. I can use it as a printer but cannot scan or copy. There...


leave it on for a couple minutes and turn it off for a couple minutes, and try again, if still does it, you are having a problem with the scanner not properly going to home position. it will need to be repaired.

Nov 28, 2009 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

Errors when scanning via all methods


You just didn't set up the scanner function, please reinstall the software and restart before you use the scanner.

May 15, 2009 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

I just got a new Dell Windows Vista Laptop. I currently have a Brother 7420 printer, fax, scanner, copier combo. I can't get the scanner to work. Please HELP... Thanks, Pam


I presume the print and fax parts work. Can you make a copy? Have you checked the driver software? The CD that came with the equipment usually installs the scanner software as well. try reinstalling the software and see if it works.

Dec 01, 2008 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

BROTHER MFC 7420 PRINTER SOLID VERTICAL LINE...


Open te lid and look at the glass. You have dirt or white-out or something on the thin strip of glass to the left. Clean that glass!

Good luck!

Oct 07, 2008 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

Brother MFC 7420 all in one Scanner not working


sorry but is the 7420 compatible with Vista? what does the box say?

Nov 08, 2007 | Brother MFC 7420 All-In-One Laser Printer

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