Bingo! Abosolutly right. Glass LOOKED clean but it wasn't. As I slowly passed my finger on the glass I could feel something. I took a credit card edge and removed what ever it was. Wiped with a clean soft cloth and problem solved. No more lines. To be clear, this was on the small strip of glass in front of the big glass bed. Thank you.
Hi J, check out my post number 36. The line causing the problem is extremly hard to see.but it is there. The credit card trick works well and then another good cleaning. Good luck. MP
That only seems to work if the line appears when scanning using the ADF. Thas it not my issue. It only appears for my when scanning on the platen. Scanning letter size paper with the ADF is fine.
I had the same problem and followed the above instructions with no help, but what I miss understood was not to clean anything with the cover where the paper's fed through, but on the actual glass that's under the top.
Here's what I did and it worked.
At the very front of the glass bed there should be a separate thin strip of glass that has a plastic strip over it for protection. That's the strip of glass that scans the paper fed into the scanner from the top. So what you need to do is lift the corner of the plastic, to get under it, and run a cloth or something under the plastic strip and over the glass. You can use almost anything under it to clear the glass/plastic strip. I used a moist cleaning wipe. Not a good idea because of the moisture. I could see the moisture from the wipe clinging the plastic strip to the glass after I wiped it, so I had to go under it again with on of those computer screen cleaners and everything was dry.
I scanned a blank page and the page scanned blank. Perfect!
I hope this helps.