Line prints down page when you copy

It worked! There was a bit of ink or something stuck on the smaller glass plate. Once I cleaned that off, badabing!
I love this site!

No promise that this will work for everyone, but I just fixed one with the same problem. I figured either there was something on the scanner sensor itself or on the glass. If you look to the left of the large glass scan area, you will see a smaller glass strip. When you use the auto document feeder, the scanner stays under that piece of glass. To narrow the problem down, I tried copying a sheet on the large glass (not using the ADF). No line. So, it wasn't the sensor itself, it had to be something on the small glass. That piece of glass is held down with double-sided tape. Dell tries to keep dust and dirt out of the interior of the unit, but it isn't hermetically sealed. So, when something gets underneath the glass, it can stick and create a permanent spot where the sensor only sees darkness. First, try cleaning the top. Look very carefully at the glass about where that line is appearing on the paper (if the line is 2 inches from the side, look about two inches in on the glass. If you are lucky, there's some whiteout (famous for screwing up scanners) or something else stuck to the top. Clean it. Gently. If you scratch it, you're going to hate your scans and copies forever. If it's on the bottom, prepare to void your warranty if Dell finds out, but carefully and slowly pry the piece of plastic holding the small piece of glass out of the machine. It's just sticky tape, but it is on all sides of the piece and it covers the large piece of glass, too. That's where I started, using a very small knife edge to slowly pry up the plastic from the large piece of glass. Little by little, the piece came up. Again, be careful. If you pry too hard, you can break the large scan glass or the piece of plastic you are removing. Once it's out, don't get any dirt on the tape that held it in place - it needs to work when you finish. Now, gently clean the glass. I used a lintfree cotton rag and some glass cleaner. In about a minute, I was able to remove all traces of dirt from both sides and put it gently back into the printer. I haven't had a problem since and hope you have the same luck!

Had the same problem with two printers. Cleaned both in less than 5 minutes. No more lines. Thanks.

The screen on the printer is showing for fax, I tried to change it because I am unable to print, I got the manual out, and it tells me to refer to my manual (huh?)