Question about Brother MFC-9840CDW Laser Printer
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Posted on Jan 02, 2017
The guy that replied solved the problem. He rocks and I can't believe that brother does have a large posting on this issue. Sham on them:
ben2913 did the job "This is NOT the solution to this error code. The code is telling you that the Corona wire must be cleaned. Remove all 4 color drums. Look down into the tray that you removed them from and you will see 4 green tabs. Open the plastic cover that protects the corona wire and move the green tab back and forth several times. After you have done this with all 4, reinstall the drums, close the machine front and everything will work fine again."
Posted on Aug 18, 2011
Look on the right side of each drum unit, there's a gear on each and each has a number that needs to align on the top with the marks make sure all drum gears are in synch.
Posted on Feb 25, 2010
Hi, well this is a problem with the transfer drum/corona wire you see what's happening is that the entire page is being covered in the "ink" and it's meant to "Fuse" to the paper where it has been sensitized via the laser, however in your case the wire is also "Setting" a fine covering over the entire surface. Somehow the entire page is also being sensitized, via the corona wire?, that transfers the charge to the paper, the image then made via the laser and set by passing over the heater. in your case both the image and the printing surface are being charged somehow... and then both surfaces react with the printing process.
You need to clean the machine so it is like a sterile area too, any loose particulate in the machine will add to the problems too. Also i believe you need to change the corona wire too.. and or the driver board for said corona wire, it, they may be faulty?
Please find a link for your service and repair manual above, have a look in there and use the troubleshooting steps, that may point you in the right direction.
Posted on Apr 23, 2011
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