Top feeder not working MF6550

I am going to assume you are using the Auto Document Feeder for when you are copying and faxing.



When you lift the scanner top (As if you are placing a single document on the scanner glass) there is a small strip of glass to the left (normally) of the main scanner glass. This is the ADF scanner location. You will find that there will be two marks on this glass at the points you get lines on copied and faxed documents. Normally this is ballpoint ink that was not completely dried when fed through the ADF or Twink (Whiteout) that was not completely dry when fed through the ADF. Using rubbing alcohol or other cleaning products of similar gender clean this mess off the glass. If it does not come off it could be actual scratches on the glass which can only be fixed by replacing the glass.

Open the feeder from the top of the machine...you will see a thin strip of glass maybe 1/2" wide running from the rear of the machine to the front..odds are there is glue/dirt/corrector fluid or some other dirt on the glass. Clean this off.

The rollers on the feeder can go bad and the best way to solve it is to get a new complete assembly. Check the website under your make and model for the assembly. YOu might also want to check for paper jam

This black line sounds like it is definately coming from the ADF scanner glass. This is the thinner strip of glass that is located just to the left of the large original glass. You can verify this by making a copy from the large glass instead of using the feeder on top. If the copy comes out clean then it is definately the scanner glass. Just clean the glass well with glass cleaner and a soft cloth. This glass is only used when copying/scanning using the top automatic feeder
Good Luck and Thank You for using Fixya.
WheatlandServices

A dark line on printed pages that are printed directly from the computer are most likely coming from the Drum Unit.
A dark line seen after making a COPY of a document using the feeder on top, is caused by a dirty scanner glass.

In the first example the fix is to replace the drum unit.

In the 2nd example you need to clean the scanner glass. The glass can be seen by lifting up the automatic feeder on top of the machine and exposing the large original glass. The document feeder glass is the smaller thin strip of glass that is located just to the left of the large glass. Clean this strip well with a cloth/paper towel and a bit of glass cleaner.
Good Luck and Thbak You for using Fixya.
WheatlandServices

You may have selected to fax from glass or you may have a piece of paper on the glass. If your placing the paper in the document feeder and it is still not rolling in. Check to see that there isn't anything jamming the feeder. The thing that activates the feeder and tells the printer to fax or scan from feeder is a small spring latch that sits internally at the top part of the cover and when ever paper is fed through it, it will engage the feeder. This small spring latch can easily come off or disengage from the unit especially if you have recently moved the printer. Check to see if it's a spring problem. If it is all you have to do is place it in place and all should work as normal. Be very careful not to force anything and gentle with any other component that you may encounter while looking, they can easily brake off.
Hope this works for you!

Please provide model number......however, if it's a "copier style" if you open the auto feeder, there should be a large contact glass and then a small "****" glass on the side that is used when using the auto feeder -clean this glass thoroughly (clean both while you're at it). If it's just a regular style fax machine, there will just be a small glass under the cover that needs to be cleaned.

Please let me know :)

Dirty scan glass

Clean slit of glass extremly well, it is a small slit rectangler section of glass before copy glass on the scanner.

Glue, Liquid paper are common finds on the glass in this area, While you have the lid up, clean white reference area (on lid directly on top of scan glass when lid is closed)

There is a thin strip of glass that you will see when you lift the top feeder. There is most likely white-out on it.

When you use the top feeder, it doesn't use the large glass, it only 'rolls' the original document over this small strip of glass.