Underside of document table needs cleaning

Solution one: Reset the product If there is static interference, or loose connections with the product, this can result in bands or lines in the copy, fax, or scan output. To resolve this issue, check the product connections and reset the product Press the Power button ( ) to turn on the product.Disconnect the power cord from the rear of the product.Unplug the power cord from the wall outlet.Wait 30 seconds.Plug the power cord back into the wall outlet. Reconnect the power cord to the rear of the product.Press the Power utton ( ) to turn on the product.Try to copy, fax, or scan again.If these steps resolved the issue , you do not need to continue troubleshooting.If the issue persists , continue to the next solution.
Solution two: Clean the scanner glass and scanner lid If the scanner glass or the white underside of the lid has fingerprints, smudges, lint, dust, or other debris, this can slow performance and affect copy and scan quality. To resolve this issue, clean the product.Before you begin, gather the following materials:Several clean, soft, lint-free cloths

Mild glass cleaner
CAUTION: Use only glass cleaner to clean the scanner glass. Do not use cleaners that contain abrasives, acetone, benzene, or carbon tetrachloride. These substances can damage the product. Avoid isopropyl alcohol (rubbing alcohol) because it can leave streaks on the glass.

1. Press the Power button ( ) to turn off the product.
2. Disconnect the power cord from the rear of the product.
3. Lift the scanner lid. Figure 3: Lift the scanner lid
   
4. Spray a clean, soft, lint-free cloth with mild glass cleaner.
   CAUTION: To protect the scanner, do not spray the glass cleaner directly on the glass.
5. Clean the scanner glass with the lint-free cloth. Figure 4: The scanner glass
   
6. Clean the glass strip next to the scanner glass with the lint-free cloth. Figure 5: The glass strip
   
7. Dry the scanner glass and the glass strip thoroughly with a clean, dry cloth or chamois to prevent spotting, and then dry the white underside of the scanner lid.
   NOTE: Do not use paper-based wipes or tissues that can leave fiber residue.
8. Clean the white underside of the scanner lid. Figure 6: The underside of the scanner lid
   
9. Close the scanner lid.
10. Reconnect the power cord to the rear of the product.
11. If the product does not turn on by itself, press the Power button ( ) to turn it on.
12. Try to copy, fax, or scan again.

• If these steps resolved the issue , you do not need to continue troubleshooting.
• If the issue persists , continue to the next solution.

Solution three: Clean the automatic document feeder (ADF) Use the following steps to clean the automatic document feeder. Step one: Clean the ADF rollers and separator pad

1. Gather the following materials:
   • A clean, lint-free cloth, or any cloth that will not come apart or leave fibers
   • Distilled, filtered, or bottled water (tap water might damage the product)
2. Remove any documents from the document feeder tray.
3. Press the Power button ( ) to turn off the product.
4. Disconnect the power cord from the rear of the product.
5. Lift the cover of the ADF until it stops. Figure 7: Lift the ADF cover
   
6. Find the pick rollers and separator pad. Figure 8: Locations of the pick rollers and separator padLightly dampen a clean lint-free cloth with distilled or bottled water, and then squeeze any excess liquid from the cloth.
7. Use the damp cloth to wipe any residue off the separator pad.

When lines appear on copies of documents fed through the ADF, it typically means that there is some kind of dirt or foreign material on the glass that the document passes over. A different window is used when scanning from the ADF as opposed to the flatbed. The flatbed window is large, often much larger than a standard sheet of paper. The ADF window, on the other hand, is small and slender. It doesn't need to be large because the document moves over it (as opposed to the flatbed, where the document is stationary while the scanner moves under it).

The ADF window is usually situated next to the flatbed glass on the side of the scanner where the ADF takes in the paper. Open the scanner lid (as though you were going to make a copy on the flatbed) and find the slender piece of glass just under where the ADF would be when the lid is closed. Once you've located the ADF glass, use a mild glass cleaner and a lint-free cloth to gently clean the surface of the glass. If you are able to see the foreign material, you can remove it by hand, but be sure to clean the glass thoroughly afterwards, as fingerprints can also cause poor quality copies.

After the glass has been cleaned, test the ADF copy function and make sure the line has disappeared. If it has not, you may need to remove the slender glass and clean the underside (though this is almost never required, as the underside is protected from environmental debris).

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Try cleaning the scanner glass real good with alcohol. If that doesn't help, you may have to get a tecchnician to disassemble it to clean the underside of the glass and the scanner.

Hi, I had to dismantle my HPG55 to clean the glass and found the instructions at the HP website. The link to the site is below. The instructions are very clear, and there are also photos to help you along the way. I hope this helps.

http://h10025.www1.hp.com/ewfrf/wc/document?lc=de&dlc=de&cc=de&docname=c00498704#N216

Sincerely,
Tosty

HP website Directions for cleaning the glass on your scanner.


http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00553775&lc=en&dlc=en&cc=us&product=90809〈=en

Here's a link to the instructions for opening the top of the scanner:

http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&cc=us&docname=c00553775&dlc=en&product=90809


BG

Start by taking the back cover off. Then the 2 side covers, being careful not to break the speaker wires.
There will be 2 screws holding the sanner into the machine, you need to remove them. Carefully disconnect the ribbon cable, remove the ground screw, and all the connectors to the scanner and document feeder. It will have to be popped backward to unlatch it from the frame.
Remove the document feeder, take notice how you remove the wires so you can route them properly when reassemling.
Remove the screws holding the control consol and the scanner together.
There also will be some plastic tabs holding it snapped together. Seperate the glass frame from the remainder of the scanner.
disasseble the scanner head carefully being cautious not to break the lamps so you can clean the mirrors. Then clean the underside of the glass.
Then in reerse order, taking your time, reasseble the machine. Make sure to route the wires properly and carefully.
A bit time consuming, but the scanner must be removed and disassembled to clean it.

hi,

no way.... u cannot clean the underside of the glass... u can clean the glass using a lint free cloth....


thanks and regards
agnel

Here's the HP link to clean most of the scanner printers

http://h10025.www1.hp.com/ewfrf/wc/genericDocument?docname=c00553775&cc=us&dlc=en&lc=en&jumpid=reg_R1002_USEN