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

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Hi- I have a Brother MFC-7420 all in one machine and I recently went through cleaning the rollers, ect..because of problems with paper feeding through from the bottom tray. It continues to constantly get stuck and I get error messages stating that the paper is stuck in the front or the back of the machine. I don't know what else to do.

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Hello,

I will advice you first clean the paper path thoroughly, these warnings are initiated by mechanical and optical detectors

Also make sure you open and close both the paper drawer and the toner hatch when this error messages appear, if the problem persist, the problem could be a down cracked gear on the fuser drum itself. To remove the fuser - remove the tray at the bottom and the back tray (4 screws, 2 either side) lift out the phone line box on the right (looking from the back - 2 screws) and swing it out of the way (careful as cable is not too long) 2 screws either side of the fuser (long black object at the bottom) unplug the halogen lamp (white plug on left) and small 5 wire plug on right, and lift out fuser unit. Nasty brown cracked gear is on the side where the small 5 wire plug goes.

Take care.

Posted on Jul 22, 2010

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Posted on Jan 02, 2017

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1 Answer

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.

Jan 28, 2013 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

Hi, I was given a Brother MFC 7420 by a neighbor. There is a problem with the paper feed - it always jams at the feeding mechanism inside the rear door. Is this a serious problem such that I toss it...


85% of paper jams are caused by worn rollers . The rubber treads in the rollers wears down, making them smooth, so they won't pick up the paper. Sometimes, they are aged, which also gives them a smoother rounded texture, causing jams. The quick fix is to liven up that roller with a mixture of alcohol and soap. Damp a rag with the solution and wipe the rollers clean with it. That's make them more pliable and the paper jams will cease.


Here is the manual, see chapter 11, page 11-7


http://www.vikingdirect.co.uk/speciallinks/gb/vkg/source/MFC7420_7820N.pdf


Click on this link or copy and paste the complete link into your browser.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response

Thanks, Joe




I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

Apr 01, 2011 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

My Brother MFC 7420 frequently jams. How can I prevent this problem? Renee


Try to perform maintenance.

Go to 'Start' menu
Select 'Printers & Faxes'
Right click on your printer (MFC)

Select properties.

Here you may see a list of tabs that will perform maintenance. One in particular that I am hoping is listed is the option to clean the rollers (what keeps the paper feeding smoothly).

Good luck and sorry for the speculations. I do not own or have personal experience with this printer, however, most printers (especially newer models) have these features that can help clear up these types of issues.

Jan 24, 2011 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

My Brother MFC-9840CDW keeps jamming every time I print mailing labels. I've had it four 1.5 years with no trouble. The label gets stuck and I have to pull out the toner tray to fetch it. I also...


hello, sounds like there are many possible solutions for you machine, first with paper jamming, are labels going thru manual feed tray, or paper tray, it might be possible that mp feed roller needs cleaning or replacing. if paper tray, simple would be feed roller, clean or replace, if jams continue with normal paper from paper tray, the problem will be front door, i have yet to be able to repair paper jams when front door assembly fails. as far as colors, both drum and toner can cause this problem, if using 3rd party toner, this will also cause some color problems. sorry no real quick fix for this machine, i've tried.

Sep 24, 2010 | Brother MFC-9840CDW Laser Printer

1 Answer

Brother MFC 7420. New Brother Toner, New Drum, cleaned feed and separator rollers, changed paper, still jamming. Paper stuck around brown fuser roller. What can I do next?


Check whether the fuser rollers are free turning. If the paper is stopped at the ejection roller, the ejection roller needs to be replaced.

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

2 Answers

Brother mfc-7420, how do I get off manuel paper feed


Thank you for following me up, I managed to discover that the document I was trying to print was set up for manuel paper feed, other documents subsequently went back to normal after printing the offending document. However is there a setting on the actual printer to control this.

Regards John

Oct 09, 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.
you better check all the rollers and check the drum unit.
if possible, please chang the drum and that should be working fine.

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

8 Answers

FEEDING PROBLEMS FROM PAPER TRAY


  1. Remove left cover (where the USB connection is located);
  2. Remove big black gear with a spring on it (you may need to unscrew the PCB that partially covers it);
  3. There is a clutch that sticks to the rubber pad behind this gear. You may put a piece of scotch tape towards to a rubber pad, so the plastic from clutch mechanism would'n stick anymore. http://www.phillycopiers.com/fix/hl-2040-2070-fix.jpg

Oleg Andrukh IT Specialist PhillyCopiers.com 215 364 3774

Apr 19, 2009 | Brother MFC-7820N Laser Printer

1 Answer

MFC-7420 "Change Drum Soon" I have had this message for a while. I purchased a new drum. In the meantime the printer continues to print fine, except we have paper feed problems. Is the drum related to...


the only time i've seen the drum affect paper feeding is if paper jams in the drum unit. i would use your current drum until print quality decreases to an unacceptable level. it will not shut down, and you will not see a "change drum message." if your paper feed problem is centered around the cassette/paper pickup area, you can try cleaning your rollers with water and a soft rag, and also make sure your rear paper stopper in cassette isn't pressing too tightly against the rear of paper stack. best to leave 1/8" gap, otherwise paper will not lift properly to the rollers.

hth,
razors

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

1 Answer

MACHINE WILL NOT PICK UP PAPER AND FEED IT. MANUEL FEED WORKS OK.


Some times need to clean "paper roller" with water-based cleanser with white fabrics or rag. The reason of this problem often is paper dust. The paper roller have excentric shape and you must to clean biggest radius of contact sphere of paper roller. To do this you must to interrupt rotation of roller, then printer try to pick up paper, by "power off" printer.

Mar 06, 2009 | Brother MFC 7420 All-In-One Laser Printer

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