Question about HP Officejet Pro L7680 All-In-One Printer

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Alignment failure My printer HP 7680 shows alignment failure. black and yellow print alternately, or half yellow, half black text. Please help.

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  • ellenjoy May 24, 2009

    thanks for the reply. The black print sometimes is still half black and half yellow. Do you have any ideas what might be causing this? I've tried cleaning the print heads both manually and through TOOLS on the printer. (I never found the small latch).

  • Anonymous Mar 23, 2014

    only bottom half of black lines are printed

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  • Master
  • 564 Answers

Open the access door at the top of the printer

Remove the ink cartridges

Put your finger in the upper left corner of the printhead ( inside)

you will feel a small latch rigth there push it upward

the printhead will loose and you may now remove the printhead

Thanks, PREM

Posted on May 24, 2009

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HP ink jet 1200..prints only test page after replacing the yellow cartridge.test page only shows black and blue inks are good.need help.


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Hi Jan,

Can you confirm that you are using a CIS or non-HP cartridges with this printer?

It sounds a lot like the printhead has reached a clogging point where sediment has built up in the black portion and loosens enough to printer a few lines before it re-asserts itself again.

Based on my experience of this printer, if you're using a non-HP delivery system for ink then you should consider replacing the black ink with a dyebase alternative instead of pigment.. Replacing the Black/Yellow printhead and running a number of test prints to purge the pigment ink in the printhead should then result in a clean and more reliable printout in future.

One other vector for problems is the cleaning area and I've found that this can become soiled with excess ink causing cross contamination within the inks of one printhead. As yet I've not found a reliable solution to counter this sort of issue.

Hope this gives some clues and hopefully some ideas of a fix.

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