Question about HP Photosmart C4150 All-In-One InkJet Printer

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False Paper Jam on HP C4150

No physical paper jam in machine, (from HP website) tried pressing OK and Help keys at same time and also tried unplugging and replugging while holding OK and Help keys simultaneously. Neither have cleared the paper jam msg. Website then suggests "servicing your product". Is there anything left to do other than taking it to a repair shop (I'll just buy a new machine for almost the same amount of money)


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  • lafespark Sep 18, 2008

    I have a 4150 which is two years old. Ever since new it has been an unmitigated disaster!! Always jamming up but no paper in it. We have opened it up as the display shows and can never find any paper. After several tries; shutting it off; letting it rest and facing east and bowing to it, it will reluctantly print one or even TWO pages before it goes south on us again. Does anyone have a solution for this piece of junk? Now it has given up on the paper jam message and says we have no cartridges installed even though they are both in place and full of ink! It is not worth the cost of a repair visit or even the cost of sending it back to HP.

  • Anonymous Sep 18, 2008

    I as well have a false paper Jam on Hp C4150. I have an e-mail in to HP. No doubt this is an ongoing problem.

  • Anonymous Dec 01, 2008

    printwe instruct to clear paper jam from back side but thrie is no paper in th epath

  • zebpooh Feb 26, 2009

    I also have the clear paper jam message, have also tried holding the "ok" and help key with no luck. Someone help?

  • kwadhams Apr 09, 2009

    False jam on HPc4150 I tried the help and ok button.

  • LostAP Apr 22, 2009

    No paper stuck in printer, tried restarting, used techniques outlined in website and in online chat function, only option left is to take it in. Does anyone know how to manually fix it?



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1) UNPLUG IT FIRST ... then take off the left side cover ... the envelope thing comes off by squeezing the lock tabs in slightly (they are on top and bottom off the envelope thingy near the front and you can just see the slots of the lock tab when you open it up ... press in the middle of the slots ... press the top one down while opening ... and bottom one up). Now you should be able to remove it and see two torx screws ... remove them and remove the cover.
2) You will see a few large gears and a clear plastic disc with some numbers on it. Gently turn the gear closest to the front corner of the printer ... the clear disc should turn too ... but if it doesn't, this is likely your problem. If it doesn't turn with the other gears, gently turn it at the same time you are turning the gears to free it. After it turns with the gears, align the square to the bottom.
3) Finally, slide the printer cartridges to the center of the printer carriage.
4) Now put it all back together and try it.

Posted on Aug 02, 2009

  • benqfan17
    benqfan17 Jan 26, 2012

    That Worked!!! Awesome, Thanks so much, justmethree!!



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