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

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Hi my brother MFC 7420 will not recognize the new toner i just added...........i hve done this multiple times before........not sure now why not working.........are the printer gods against me today??

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All brother printers and mfc products. if you are using generic tonere or refills, brother products will not recognize the toner cartridge as the refillers do not know how to reset the toner cart. this is priority info. therefor u must use brother oem toner.brother service rep

Posted on Jan 13, 2009

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Drum end soon brother mfc 7320 printer usb002


My Brother MFC 7420 said drum end soon, so I ordered a new drum. Then I waited for something to go wrong before I replaced it. Basically I was looking for a deterioration in print quality. I waited and waited. I think it was over 3 years. I replaced the toner a few times. While the print quality never really went done, the frequency of other problems finally shot up. When I replaced the drum the problems went away. My advice -- ignore the warning unless you have other problems.

Dec 08, 2013 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

Brother MFC-7420; "Take Drum out; Slide blue tab..."


go online type in Brother MFC-7420 reset and follow details

Jan 30, 2013 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

Brother MFC-7420 just started printing a shadow image


Sounds like a bad drum cartridge. Pull the toner/drum cartridge out of the machine and set it down. Press down on a (blue?) tab to release the toner cartridge, and you can lift the toner cartridge out of the drum cartridge. There is a cleaning blade in there - a soft plastic blade that rides against the drum and scrapes off toner that didn't get transferred to the paper. If it gets stuck off the drum surface, images repeat a few inches (one drum circumference) down the page.

A new DR-350 drum unit should fix it. have the machine's power on when replacing it. While the door is open, touch the CLEAR key. The display will read "REPLACE DRUM?" or something like that. Press 1 for Yes.

Jan 05, 2010 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

MFC 7420 always say toner low after you change new toner


If you are using the MFC 7420, then you should see the option buttom just next with the LCD. press the option and hit 00. then the message will just go away.

Feb 10, 2009 | Brother MFC 8300 Laser Printer

1 Answer

Brother MFC-7420: Toner low - massege. But catridge is full.


The magic word is "refilled." Not all refilled cartridges work correctly. Try another cartridge (a new one to be absolutely sure) to verify the printer is working properly. But my money would be on "defective refill."

Dec 05, 2008 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

Toner replacement on Brothers MFC 7420


Open the front cover and try to pull it out strongly.
then use the duster to clean the machine.
then you should able to replace your cartridge easily next time.
mightbe too dirty or you use ODM toner? if yes that's the problem issued from.

Nov 18, 2008 | Brother MFC-7420 Laser Printer

1 Answer

Colors print too light in B&W


Please check your toner and the perfrence setting.
sometime you set toner saver, that issue the problem.
otherwise, you can replace your toner to see what happen.

Aug 25, 2008 | Brother MFC 7420 All-In-One Laser Printer

5 Answers

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

May 22, 2008 | Brother MFC 7420 All-In-One Laser Printer

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