SOURCE: printing yellow for black
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.
Martin
SOURCE: My out of warranty l7680 will not print or
The error states that you are using non-HP cartridges for all colours. If black prints fine then you should replace the colour cartridges with genuine HP colour carts. You should be able to get a refund on the refills since they clearly do not work as intended.
SOURCE: magenta and cyan will not print on my hp officejet
Same thing happened to my printer hp L7590. Printed diagnostic, only black and yellow printed; diagnostic for printhead health Ky=good, MC= good. Only Hp products ever used. Uplugged, & discharged static, cleaned copper parts of printhead. Still no fix. On visual examination of floor of printhead compartment rectangular pad ( approx 1/4" by 1/2") is missing. I can only guess that during the paper jam, somehow the pad got caught up and went awol. Not sure what to do now.
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