My HP Officejet L7680 suddenly stopped printing CYAN. Replaced the cartridge (even though it still showed 70% full and expir date of 2012-02-05. Ran the diagnostics print pages - self test and print quality - all says cartridges and print heads are good. One day I had all four colors, next day the blue was gone.. any ideas?
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If Printer heads health condition is not good, alignment wont completes.. Four individual cartridges & Two print heads, each print head prints two colors.. Black& Yellow, Cyan & Magenta.. Verify which color is not printing properly(Color missing Or white bands).. Perform 2 or 3 times print head cleaning through printer menu..Try for alignment.. If success end.. if no, replace the print head which is not printing properly.. Before replacing the printer head ensure that cartridge ink should be above 30%...
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.
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.
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.
Place a soft clean tissue paper over the cartridge print head and leave for about eight minutes. You can secure it with the aid of a rubber band. It should be held firm ok. If the tissue paper is not dampened by ink then the cartridge would have gone bad or the ink dried. You also know that they have expiry date and could go bad while yet in the packaging b/c it has expired. Good luck
Could have a corrupt driver. Disconnect
the printer or at least be sure it is turned off. I'd do
both and when the CD software program asks you to connect the printer
to the USB port, do so and it should again work properly.
Hope this helps. Bud