HP officejet pro l7680 all in one

Use your machines built in programme to clean the ink jet heads

Probably that there is no more ink in the yellow cartridge. Print in Black.

yes.replace the yellow cartridge

hi,
the yellow cartridge is '' Y" and not K , you have a problem with the black carteidge "K" replace the black and tell me what is the new message, i will help you. i'm online

It sounds like your printer setup has changed to generating black by MIXING the color inks... if you run out of the cyan and yellow it will do red in spite of how many changes you make of the black cartridge.

Investigate the setup for the printer to make sure it is set for black from the black cartridge.

Have you tried to replace the black/yellow printhead? This is not the same as the ink cartridges, but it is located in the compartment under and to the right of the scanner lid.
Here is HP's link.
It looks like this...

If you print primarily black, your black/yellow printhead may have worn out and needs to be replaced. Go to start, printers and faxes, select the L7680 and then select properties. Print a test page and run the troubleshooter to clean the nozzles and lines. If it's not the nozzles or lines, search for C9381A on google and purchase a new printhead it should be about $70.

Take out te vlack cartridge and clean it with a damp cloth or paper towel, and then try again

I have the same problem with my Officejet Pro L7780, so you are not alone. Have you found any solutions?

Hi,

Unfortunately it's highly likely that your black printhead is clogged due to the conditions you are using the printer in (ie: warm, dry, air-conditioned?).

I get this a lot in hot offices and school classrooms.

The only solution I've found that works long term is to use a dyebase black ink instead of the pigment ink that HP provide but this obviously means you would have to source a 3rd party ink supplier with ink of this type.

In the mean time a shorter term solution is to purchase a new black/yellow printhead and follow the process for changing the printhead for this new one.

Hope that helps.

Martin