Question about Brother MFC-9420CN All-In-One Laser Printer

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Brother MFC-9420CN Paper Jam Error message w/ loud grinding noiz

I turn on the machine to a loud grinding noise. I want to print something it makes the sound to photo copy than when it comes to lifting paper from the try I get the grinding noise from inside and the error message comes paper jam A1 (Paper tray jam). I checked the tray pulled it out checked for paper (NO), opened the back cover (no paper there), I tried the top where the paper comes out (no paper there either). I tried the trouble shooting online, with the book, and with Brother Customer Service. I was referred to a service center which asks for a minimum of 2 hours work at $95 per hour. Please can someone save me some sanity and money? I have doubts that there is any paper jammed, but how to know for sure? Would a paper jam cause such a tremendous noise like parts grinding together?

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Please try this

  1. Turn off the printer.
  2. Remove any paper trays. Inspect them for wrinkled or damaged paper.
  3. Also open the back cover of the printer if this model has one.
  4. Open any other doors that give access to the printer's paper path and to the toner or ink cartridge.
  5. If necessary, remove the toner or ink cartridge. Place it away from light/ sun light to avoid damaging it.
  6. If you find a piece of jammed paper, remove it by holding it with both hands and pulling firmly. The goal is to keep the paper from tearing. If several pieces are jammed together, try pulling out the middle piece first to loosen the jam.
  7. If the paper does tear, try rotating the roller gears manually to free the paper. Don't force anything, though. Do this step especially if the jam message comes up repeatedly without any obvious paper jam, there may be a small tear of paper inside.
  8. Ones the printer is free of paper Replace the toner or ink cartridge and paper trays, close any doors you opened and turn the printer back on.
  9. If the printer paper jam message still appears, then there is still some paper in the printer. Reinspect the paper path.
  10. see alternative if the problem is still not solved.



alternative :
Load a piece of thick paper, for example photo paper and press the resume button (may be diffrent button on diffrent models) a few times to the printer picks up the paper and puts it through the machine.

Posted on Jun 11, 2009

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G'day mate, My Brother MFC240c was doing the same thing ( Paper Jam but no paper & Grinding sound) , I eventually found a piece of ink blackened paper on the right side of the "slide" stopping it from making a full pass ... I only found the paper when i opened the cover fully (by unhooking the "light blue" cover holder) seeing the paper & removing it, problem solved

Posted on Aug 13, 2013

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I just purchased a used Brother MFC-9420CN with what seems to be this same problem: A very loud grinding noise that starts upon powering up stops after the initialization is completed. It is present whenever a page is printed. The sound comes from the OPC print belt cartridge or from the gear driving the belt. Now why does it make this noise? I am unsure; no gears are worn but the print belt is very hard to turn manually and requires far more effort to turn than say, a Xerox copier print belt, (Xerox 13R9 in this case), which is several times the size of the Brother OPC print belt. Print quality seems to be okay and nothing is obviously preventing the belt from rotating more easily. The OPC cartridge was not disassembled.

Now my question: Has anyone had this problem and it was solved by replacing the OPC belt cartridge?

Posted on Jul 31, 2009

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Posted on Jan 02, 2017

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