scanner and copier printing a line down center of page

[taosorganics]

This is my 3rd printer, same model and having the same issue with the unit printing a line down the middle of the page when scanning or copying using the ADF tray. When using the glass for scanning and copying it does not add the line down the center. For some reason the ADF tray continues to do this on every one of the 3 printers I have received from HP.

I have extensively cleaned the ADF tray rollers as suggested in the HP video re: lines on documents and performed all troubleshooting steps Since I have experienced this issue with the previous 2 machines, HP was not able to figure out a repair.

I would like to exchange the unit again, this time for the next model up in hopes that it will not do this a fourth time. Please send printer for exchange to address on file.

[Valsimot]

You need to clean the glass smaller glass on the left side, not the rollers.

[taosorganics]

Yes this was also performed but still get a line down the middle with the ADF.

[Valsimot · Accepted solution]

Clean it again, it's dirty, use a sheet with a line to align that will guide you to the exact sport you need to clean

[taosorganics]

Thank you! Found a very small speck that needed a bit of scraping to get off of the glass. The original cleaning didn't remove it. It was very small but the camera obviously was catching it via the ADF tray. Thanks for the help Valsimot!!