Question about Brother MFC-7340 All-In-One Laser Printer

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My laser printer is squeaky when it prints

It prints well, it just makes a loud squeaking racket after paper pickup while the paper is traveling through the printer being printed. I'd like to clean it or lubricate it if I knew what parts to examine, what products to use and what to make sure I don't do so I don't ruin the printer while I'm trying to fix it! Advice appreciated.

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  • Contributor
  • 78 Answers

More than likely it is a problem with the toner cartridge.Try another one and your noise will most likely disappear.

Posted on Apr 16, 2014

Testimonial: "Thanks for your thought. However, it has been this ways for a couple years, through at least 3, maybe 4 toner cartridges. And I only use the brother brand cartridges. The inside of the printer seems remarkably clean for such an old machine. I lift the scanner top, remove the toner carriage and paper tras, open up the back and pull the lever forward to reveal the orange cylinder and all seems clean. I nudge what small plastic moving parts I can find and nothing makes noise or seems to stick at all. The paper feeds well most of the time. I only get the occasional paper jam when I try to stop/interrupt printing suddenly or a few times when paper is down to the last few pieces. I'm stumped."

  • jcoch8
    jcoch8 Apr 16, 2014

    When you run paper through your printer over time paper dust can get into the plastic or metal bushings on the drive assy. causing squeaking. I would not recommend lubricating it because there are circuit boards in your printer and could get on them and short them out.

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Paper jam with Brother HL-2030 laser printer

Being a retired electronics technician, I located and downloaded a copy of the service manual. Then proceeded to hunt for the reason why the Paper LED was staying on. I put the printer into the Production diagnoses mode, then by process of alimination opened and closed each panel and cheack each sensor switch one at a time. At which time it was apparent the problem was the rear door sensor. So I started to disassemble the printer getting instructions from the Service manaul, as most electronic equipement there is a sequence process to accompliah this. and once I found that the method of the rear door sensor operated I found the bracket was not in the right position. I put the sensor bar back into it's proper position and put the printer back to normal opperateing mode, I found my problem was solved. So I reassembled the unit and plugged it back into the compter ran a couple of test sheets and cleaned and aligned the printer head(s) made a few adjustment and everything was back to normal.
I must say that locating the Service Manual was a feat, but worth every cent I paid for it which was $9 USD. Personally i think all service manuals should be available for all Brother products for a fee, then a large number of problems can be fixed by the owners without much bother to Brother.
I ahve two of these printers and would still purchase a Brother colour printers, my next purchase is going to be a Brother color laser printer. Out of all the printers i've used on my computers I like the brother the best.

Posted on Mar 22, 2008

SOURCE: Squeaking

that's a mechanism issue inside..it's going to fail quite soon, so you may not have this problem for too much longer.




Posted on Aug 20, 2008

  • 138 Answers

SOURCE: Brother 5250 DN Paper Jams

You problem is actually in the pick-up roller and separation pad areas. the paper is delaying and not making it through to the next check point in the machine fast enough.

1st
Take it by your closest Brother Service Outlet. They're in the phonebook under "Computer Service & Repair". It's a cheap fix but requires parts.

2nd
Use good paper. Paying a little more for paper will save you a lot over time in repairs and premature toner and drum failures. Brother printers are really finicky about paper quality. Recommend "HP Office" brand paper as a minimum. It's a known good paper for general everyday printing and won't break the bank.

Posted on Aug 26, 2008

komguy
  • 2306 Answers

SOURCE: Print unable 32 ?

Print unable 32 is dirt or scratch on the transfer belt assembly. There's a timing mark on the belt that a sensor must read. If the belt is damaged, you will need a new one.

Posted on Aug 07, 2009

  • 1 Answer

SOURCE: Brother HL-2070N Laser Printer Will Not Print

First of all, I checked the answers given here, but nothing worked; everytime I turned on the unit, the red light flashed that the printer was out of paper.

From the Brother's HL-2070 manual, in the troubleshooting section: take out the toner cartridge from the front of the machine (be careful, any black toner powder that come off may be very difficult to clean up). I took the toner cartridge to the sink.

There is a blue slide along the top of the unit that will clean the corona wire if you slide it back and forth, from one end to the other (toner/dust can become caked on the wire over time; sliding the slider back and forth simply knocks the caked off 'stuff' off of the wire).

Replace the toner cartridge; it worked fine for me. I was immediately able to print.

Posted on Apr 23, 2010

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