Question about HP OfficeJet 6110 All-In-One InkJet Printer

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Scanner Knocking against Right side!!!NO Errors

When you power on goes through all the normals.. but the scanner will go all the to right side and knocks oj right side of printer, and will not go to left at all!! I had to power on and un plg about 30 times to get the scaner to the left side, then When I turned on, went slowly to right and started knocking again....But not getting any errors. when try and print/ says busy.???????

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  • avidbrood Sep 12, 2008

    I have had this problem for years. The problem was intermittent and would usually go away after a week but return about two months later. Weird. Now it won't go away and I have tried all the steps mentioned here. One question: How do you know the scanner/encoder/white strip is properly aligned vertically? It fits in a little trough but can slide up and down in it. I've tried placing it at the top of the trough, top of the glass centered in the scanning area and bottom of glass. It's not working.


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Make sure that the printer is plugged directly into the wall outlet and not into a power strip / surge protector. A change in expected voltage can produce very bizarre behavior. Once plugged into the wall, if you are still experiencing the problem, I suggest an on-line chat with HP. It's free.

Posted on Aug 06, 2008

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Thank you for such well documented steps. I have written them all down (since I can't print them out) and will attempt once I can purchase the proper screw driver. Does anyone know where I can obtain the right screw driver? It looks like a maple leaf, round on the bottom with 4 fingers on the top.

Posted on Aug 31, 2008

  • Stacy P
    Stacy P Aug 31, 2008


    You ROCK! Your detailed instructions gave me the confidence to do surgery on my unit. I am NOT a "tech" type person. I bought a T-10 size star bit screw driver A.K.A. "Torx" and was able to get into the unit. I followed each of your steps exactly. My glass was filmy and probably caused a glare when the scanner light was on, prohibiting it from seeing the stop and start marks. I checked the mirrors and lens and all were clean so I did not touch them. During the process the ribbon came out of the touch pad but I figured where it came from and had no problem re inserting it.

    The unit works fabulously with no problems. FixYa saved me over $200 today. Thanks for the forums!


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Hello Thomas,

I would suggest you go to the following page and look at sillygirls response this worked for me.


Posted on Aug 08, 2008

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  • Jo-Anne Aug 08, 2008

    Actually Thomas here you go. I would try to clean the glass on top then go through the reset process. If this does not work then take it apart and clean the underside of the glass as well. Then you would need to go through re-set process again.


    Solution #2
    posted on May 21, 2006

    silly girl

    Rank: Wiz
    Rating: 81%, 3213 votes

    To fix it you have to clean the glass from the inside and reset the device by pressing the # button along with 6 button, and then plug the power cable in while pressing them.

    First of all you should disconnect the printer from all cables.

  • Jo-Anne Aug 08, 2008

    Sorry but one more thing the cables. Apparently you press the re-set buttons #6 while plugging the power back into the machine.

  • Jo-Anne Aug 08, 2008

    On another note: I have done this and it has worked to stop the knocking. However once in a while it happens again.

    Right now, I can print but the machine doesn't find the scanner when I try to scan. Sometimes it will find the scanner, scan the photo then when I press Accept on the HP software I get the message about no connection to scanner or cannot find scanner...

    So, the knocking has stopped but now there are other problems... Going back to see if I can find a solution to the scanner thing now.

    I have an HP Camera as well and have had nothing but little technical problems like this since the day I bought both products...

    Wish me luck

  • Jo-Anne Aug 08, 2008

    Here is everything I could find and compiled. I did the res-et etc. and worked to stop knocking. Did not clean mirrors etc. and machine is not finding scanner. So I need to go back in a clean mirrors/lenses and check the black strip.

    Got original guts of solution from sillygirl on this page. Added some information provided from FixYaBoy and Sergey C. Thank you to both.

    Disconnect all cables from printer.

    I would try to clean the glass on top then go through the reset process (press #6 while plugging the power back into the machine). If this does not work, then think about taking the machine apart to clean inside and underside of glass as well. Then you would need to go through re-set process again.

    In another solution it states - you must clean all the mirrors inside the scanner assembly (black box closed with two locks) also the lens and the delicate spaghetti-like lamp. Generally this works... Not everyone has done this part but worth a try when desperate.

    {From Sergey C - I also had similar problem with HP OfficeJet 6110 xi. The Scanner Initialization would fail at start up because the electric motor would not stop the test and the rubber belt would make snapping noise. I tried every single solution above and it still did not help. I even opened up the scanning head and cleaned all of the 4 mirrors inside. Still nothing ....and then I noticed that the scanner head would not stop because it did not know when to stop....meaning that it could not find or see the mark that tells it to stop.

    from Sergey C {Then I looked on the inside - underneath the glass where the scanner head was looking for mark and found it in the form of a plastic strip that had black edges and white line on inside. And that is when I noticed that the black paint on the edges was flaking off and leaving uneven edge. I repaired all the white spots on the black edge with black permanent marker and after putting everything back together :) the printer finally started working.}

    May need to buy a set of screw drivers for removing the glass. They are different.

    1. Disconnect the printer from all cables.

    2. Remove all the screws that hold the glass panel (you do not need to remove the one screw that's on the left hand side, in the middle).

    3. Remove the plastic panel that's over the buttons just by popping it up using a knife or something similar.

    4. Extract the keyboard from the inside by unhooking the lock that's on the bottom right of the keyboard (close to the center)and slide the whole board to the left.

    5. Then lift the upper unit with the glass panel and place it in the back standing up.

    6. You can now reach the inside of the glass and clean it with a window cleaner using a dry clean cloth.

    7. While you're at it, push that slider unit to the left and lift it out; the left side of the metal rod is not screwed in.

    8. Remove the black slider unit by unhooking the belt from the slider unit and gently pull out the electrical harnest cable (you might want to mark one side with a permanent marker to remember which side when you re-attached the cable).

    9. Gently and carefully pop open the cap on the bottom side.

    10. Once it's opened, you'll see about 4 mirrors inside and a camera lens. Dip a couple of swabs in windex and GENTLY clean and dry all mirrors and camera lens.

    11. Carefully re-install everything by retracing your steps.

    12. Reset unit by pressing the # and the 6 keys together while plugging in the power.

  • Jo-Anne Aug 09, 2008

    I went back and finished cleaning scanner mirrors, glass, lens, checked black strip but it was OK.

    Have not tried the Fax yet however everything seems to be working now. I have been having major issues with the scanner itself not working or the knocking.



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