HP LaserJet Pro MFP - Vertical Lines or Streaks When Copying or Scanning From the ADF

1. Make a blank copy from the ADF and mark it "ADF."
2. Make a blank copy from the flatbed scanner glass and mark it "flatbed."
   • If the issue is visible on the copy marked "ADF," see Step two: Clean the ADF glass and white strip on the underside of the scanner lid.
   • If the issue is only visible on the copy marked “flatbed,” use a soft, lint-free cloth moistened with water to clean the flatbed glass and lid backing.
     The following video demonstrates how to clean the scanner glass and white backing:
     

     How to fix lines & streaks in scans | HP Color LaserJet Pro multi-function printers

     Learn how to resolve image quality issues, such as lines or streaks, when scanning and copying from the document feeder on the HP Color LaserJet Pro multi-function printer series.
     If you have trouble viewing the video or to view the video in a different size, click here to play the video on YouTube.

     note:

     If needed, lens cleaner or nonabrasive glass cleaner can be applied to the cloth before cleaning the glass. Spray only onto the cloth and not directly onto the glass or device. Do not spray water or glass cleaner on the glass as it can seep under it and possibly damage the printer. Do not use abrasives, acetone, benzene, ethyl alcohol, or carbon tetrachloride on the glass; these can damage it and/or leave residue on the glass resulting in degraded copy/scan quality.

     Figure : Flatbed glass and lid backing
     

note:

Dust might appear on the underside of the glass, but this cannot be cleaned and it has no effect on the copy or scan quality.

1. Open the scanner lid and locate the one-inch strip of glass to the left of the main scanner flatbed glass.
   Figure : ADF glass and white strip
   
2. Use a soft, lint-free cloth moistened with water to clean the ADF glass. Some models use an upper ADF glass similar to the lower one. In this case, perform this cleaning step for both the lower and upper ADF glass.

   note:

   If needed, lens cleaner or nonabrasive glass cleaner can be applied to the cloth before cleaning the glass. Spray only onto the cloth and not directly onto the glass or device. Do not spray water or glass cleaner on the glass as it can seep under it and possibly damage the printer. Do not use abrasives, acetone, benzene, ethyl alcohol, or carbon tetrachloride on the glass; these can damage it and/or leave residue on the glass resulting in degraded copy/scan quality.

3. On the underside of the scanner lid above the strip of ADF glass, use a soft, lint-free cloth moistened with water to clean the upper white strip and metal strip (if applicable). In some cases, this is a glass strip similar to the ADF glass.

   note:

   Do not scrub or use paper-based wipes as this can scratch the surface.

4. If the white strip does not come clean, try again using isopropyl alcohol, and then wipe the surface thoroughly with a damp cloth to remove any residual alcohol.
5. Dry the ADF glass and upper strip with a soft, dry cloth to prevent spotting and then try again to copy or scan.
   If the issue persists, see Step three: Isolate the location of the debris on the ADF glass.

1. Place a blank sheet of paper in the ADF and mark an “X” in the lower right corner as shown below.
   
2. Press the Start button to make a copy of the blank page.
3. Place the copied paper face-up on the flatbed glass with the "X" located as shown below.

   note:

   Make sure the upper left corner of the copy is aligned with the upper left corner of the flatbed glass.

   
4. Follow the line or streak on the paper to the area on the ADF glass that is causing the issue.
   
5. Use a fingernail to loosen any stubborn debris.

   note:

   Use only a fingernail. Other objects can scratch the ADF glass.

6. Clean this specific area again and dry the glass with a soft, lint-free cloth.
   
7. Try again to copy or scan.