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HP OfficeJet, HP LaserJet and HP Color LaserJet Enterprise MFP Printers - 31.03.34 Error

Issue

31.03.34 Background missing
The removable white backing is either missing, not fully snapped into place or dirty.

Solution

  1. Press the power button to turn the printer off, and then back on to clear the error.
    Figure : Press the power button
  2. Open the document feeder.
             
  3. Check to see if the white backing is in place and properly seated.
       
    If the white backing is missing, unattached or not seated properly, go to the following section: Remove and replace the white backing.
  4. If the white background selector is severely damaged, replace the back ground selector.
    note:
    • If your warranty, HP Care Pack or support agreement is active:
      Contact HP Customer Support.
    • If your warranty, HP Care Pack or support agreement has expired:
      For replacement parts go to the HP Parts Store or contact a local authorized HP dealer or service representative for service.
  5. If the white backing is correctly install and not damaged, clean the scanner glass and the white backing.
    Use a soft, lint-free cloth moistened with water to clean the document feeder glass, flatbed glass, and plastic lid backing.
    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.
    note:
    Do not scrub or use paper-based wipes as this can scratch the surface.
         
  6. Dry the document feeder glass, the flatbed glass, and the upper strip with a soft, dry cloth to prevent spotting.
  7. Turn the printer on and then try again to copy or scan.
  8. If the issue still persists, contact a local authorized HP dealer or service representative for service.
Remove and Replace the white backing.
With the printer still turned Off, use the following images to determine which scanner type you have. Use the link 'Style #' to take you to the correct steps.
Style 1    Style 2   Style 3   Style 4

Style 1 Remove and Replace the white backing

  1. Open the document feeder.
    Figure : Open the document feeder
  2. Remove the white backing.
    Figure : Remove the white backing
  3. If any of the retention clips (callout 1) remain attached to the white backing (or are damaged), go to step Verify that the spring is positioned correctly on the retention clip..
    note:
    If none of the retention clips remain attached to the white backing, skip the remaining sub-sets in this removal procedure.
    Figure : Check the retention clips
  4. Verify that the spring is positioned correctly on the retention clip.
    note:
    If any of the retention clips or springs are damaged, replace them with the clips supplied in the kit.
    Figure : Check the retention clip spring
  5. Install the replacement clip (callout 1) in the slot (callout 2) in the document feeder.
    Figure : Install the retention clip
  6. Press the clip to make sure it is securely installed.
    Figure : Press the retention clip
Install the white backing
  1. Place the replacement white backing, on the flatbed scanner glass as shown.
    note:
    Place the corner of the backing that does not have a hook-and-loop fastener in the upper-left corner of the scanner glass.
    Figure : Install the white backing
  2. Close the document feeder.
    Figure : Close the document feeder
  3. Open the document feeder and make sure that the white backing is securely attached.
    Figure : Check the white backing
  4. Close the document feeder.
    Figure : Close the document feeder
  5. Turn the printer on.

Style 2 Remove and Replace the white backing

  1. Open the document feeder.
    Figure : Open the document-feeder
  2. Carefully remove the white backing.
    Figure : Remove the white backing
  3. Remove any rubber stoppers that might still be attached to the document feeder.
    Figure : Remove rubber stoppers
  4. Position the replacement white backing on the scanner glass. Carefully remove the protective backing from the rubber stoppers.
    note:
    Do not touch the exposed adhesive.
    Figure : Remove the protective backing
  5. Make sure that the arrow on the replacement white backing is positioned in the upper-left corner of the scanner glass.
    Figure : Position the replacement Mylar guide
  6. Completely close the document feeder.
    Figure : Close the document feeder
  7. Firmly push down on the four corners of the document feeder to adhere the white backing to the document feeder.
    Figure : Push down on the document feeder
  8. Open the document feeder.
    Figure : Open the document-feeder
  9. Firmly press on the white backing over the areas shown to make sure that the rubber stoppers are completely adhered to the document feeder.
    Figure : Press on the white backing
  10. Turn the printer on.

Style 3 Remove and Replace the white backing

  1. Open the document feeder.
  2. Carefully remove the foam reflector.
  3. Remove any left over foam reflector adhesive material from the document feeder.
  1. Position the replacement foam reflector on the scanner glass.
    note:
    One long edge of the foam backing does not have adhesive tape (callout 1). Make sure that this edge is closest to the hinge side of the glass when positioning the foam on the glass.
  2. Carefully remove the protective backing from the adhesive portion of the foam reflector.
    note:
    Do not touch the exposed adhesive.
  3. Make sure that the foam reflector is aligned with the upper-left corner of the scanner glass.
    note:
    One long edge of the foam backing does not have adhesive tape. Make sure that this edge is closest to the hinge side of the glass when positioning the foam on the glass.
  4. Completely close the document feeder.
  5. Firmly push down on the four corners of the document feeder to adhere the foam reflector to the document feeder.
  6. Carefully open the document feeder.
  7. Firmly press along the adhesive portions of the foam reflector in the order shown to adhere it to the document feeder.
  8. Carefully remove the protective sheet from the foam reflector.
  9. Turn the printer on.

Style 4 Remove and Replace the white backing

  1. Open the scanner.
    Figure : Open the scanner.
  2. Carefully remove the old foam reflector.
    Figure : Carefully peel off the old foam reflector
  3. Remove any remaining adhesive.
    Figure : Remove any remaining adhesive
  4. Discard the old foam reflector.
  5. Remove the new foam reflector from the packaging.
  6. Place the new foam reflector on the scanner glass, as shown, with the two adhesive strips facing up.
    Figure : Place the new foam reflector on the scanner glass
  7. Peel off the two strips of adhesive backing.
    Figure : Remove the adhesive backing
  8. Place the two Mylar strips onto the adhesive, as shown. Carefully align the Mylar with the edges of the adhesive.
    Figure : Place the Mylar strips onto the adhesive area
  9. Peel off the two strips of adhesive backing.
    Figure : Remove the adhesive backing
  10. Before continuing, verify the foam is aligned with the left, rear corner of the scanner glass.
    Figure : Align the foam with the corner of the glass
  11. Close the scanner. Press down firmly to adhere the foam.
    Figure : Close the scanner
  12. Open the scanner again.
  13. Press along the top and bottom of the foam, over the areas with adhesive.
    Figure : Press the foam into place
  14. Peel off the plastic backing.
    Figure : Peel off the plastic backing
  15. Close the scanner.
    Figure : Close the scanner
  16. Turn the printer on.

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