Question about Brother MFC 7840W Printer
Brother MFC7840W How to replace the Doc feed pickup rollers.
Doc feeder fails to draw pages through consistently, so I found a distributer of the feeder rollers. Bought the rollers but have determined that I don't know how to do the replacement. Help?
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Posted on Jan 02, 2017
SOURCE: Brother DCP8020D Document Feeder
Clean rubber rollers with metho, run a page by hand of laminate or stiff card threw the doc feeder. Stick it where the paper comes out of DF and ensure path is clear.
Push down on left side or tape down little black switch (rear left corner near glass)while trying to use df to confirm hinge aint the issue
If it is the rollers it should feed when paper is "helped a little" with hand at feed time
Ensure prints ok when using glass instead of df to know it is df problem
Posted on May 08, 2008
SOURCE: Document Feeder jams
I got adventurous and removed the screws holding the document feeder. I then used a can of air and blew into the gears and then reassembled the feeder. It works perfectly.
Posted on Feb 06, 2009
Follow these instructions to clear the jam and replace the jam clearance component.
For the noise issue, see here and here.
I hope this information allows you to resolve this issue. If you need further assistance, please post back with a comment to this thread.
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Posted on May 22, 2009
Open the adf and rotate the pick assembly till you hear a click and then take a coin and run it up and down against the separator pad and then see if the adf picks the paper or not.If this does not work try this *# 329 and scroll thru and select adf pick test if that fails its time for you to get the printer replaced or get an upgraded printer
Posted on May 30, 2009
Well, how to do that I don't know how to explain you, but first of all try to clean it, do it with thinner, this may solve your problem for while, at least until you find a way to remove and change.
Posted on Aug 14, 2009
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