The scanner cover hinges on our brother mfc 3420c won't close

While there are many ways to prevent Brother printer error code "41

You need a new hinge so the cover will sit down properly, or paper will jam anyway, but it sounds like there is still a scrap of paper on one of the sensors inside the ADF, you need to look with a flashlight down thru where the paper goes and also look up thru the slot with the ADF lifted.

Those hinges are part # LP0529001, they run around $10.00, Google should be able to find a store where you can buy them.

Right hinge is LE6245002, left is LP0018001

You have to close the ADF. If the ADF is closed, then the left hinge is probably broken. Look for "MFC-8820D hinge" to find the solution in FixYa.

read the manual in ur service manual that is installed in your pc then click cartrige replacement

Those hinges have been updated by Brother. You need to go to Brother's website and find a local service center.

Yes, I had the same problem in Sept 2006 - a broken left hinge that needed fixing. Ordering the part was easy. I was able to install it myself, but it required some attention to detail.

I called Brother International at 800-284-4357, Option 1, then 2. I ordered the left hinge - Part No: LP-2403001 - described as ADF Hinge Assembly (left). If you broke the right hinge, the part number may differ slightly, but person on phone should be able to assist. It cost me $11.55 including shipping.

I had the same problem with mine. Lift the top scanner, and check the hinges on the left. That error message means that the little black sensor on the left next to the hinges is not meeting flat with the unit when closed. Hold the sensor in for a few seconds, and your printer will start working properly.

go to the brother homepage of your country and download the driver package for your printer ;-) for US: http://welcome.solutions.brother.com/bsc/public/us/us/en/dlf/download_index.html?reg=us&c=us&lang=en&prod=mfc3420c_us&type2=1&os=7&flang=English&dlid=