How do i remove vertical line from scans on HP Pagewide Pro MFP 477dn/dw?

[BlackSwift]

Any time I feed a document through the scanner it has a vertical line through it. This does no thappen with the glass top scanner or the printing option. Is this something I can clean?

[Ratchet_31]

Hi@blackswift

Follow these steps.

Printers with a document scan feeder 

Clean the plastic and glass strips inside the document feeder with a soft, lint-free cloth sprayed with glass cleaner.

 NOTE:

Some printers ship with a document feeder cleaning cloth. If you have the cloth, load it into the document feeder and start a scan job to clean the scanner mechanism.

1. Turn the printer off, disconnect the power cord, and remove the battery if your printer has one.
2. Depending on your printer model, open any top cover, document feeder tray, and scan document feeder cover.
3. Remove any debris such as bits of paper or paper clips from inside the document feeder.
4. Spray a soft, lint-free cloth with glass cleaner, then wipe the scanner glass and the white strip on the underside of the document feeder until clean, dry, and streak-free.

    CAUTION:

   To protect the interior printer parts, do not spray the cleaner directly on or into the printer.

5. Completely close any covers and trays that you opened.
6. Reconnect the power cord, reinstall the battery if necessary, then turn on the printer.
7. Load the original document or photo, then try to scan. Make sure the original document or photo is in good condition and free of tears, creases, folds, staples, or tape.
   If the issue persists, continue to the next step.  

Here is an youtube video watch this ( It is for an inkjet printer but you can try it on laserjet printer ) 

https://www.youtube.com/watch?v=488739PiGvc

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