HP 6500 Office jet E709a - Black printer cartridge HP 920 not working

[LadyIrish]

Call me cynical but these 3-in-1 printers are so cheap that if HP engineers addressed this issue we wouldn't go out and buy another printer.* Apart from this problem I hate the fact the 6500 takes eons for the &&^%$ to reset sometimes, I run through ink like crazy and I am not a graphic design person.  

*Seriously, if I was not able to fix this problem I was on my way to buy another printer and it would not have been an HP!

[dde0apb]

Thanks; I have checked the vents to no avail.  I have gone out and bought a new 6500 since I actually quite like the functionality.  But I've bought a three year warranty with it. 

I did try the new printhead in the old printer and it did not print black at all with the XL black cartridge.  With the smaller standard cartridge it worked a little - printing rather as if the ink was running out.

Putting the head back into the new printer it all works fine with either cartridge.

So I know there is nothing wrong with the print head or the cartridges.

I can therefore only conclude there's an internal firmware problem in the old printer or there's a physical connection problem, most likely in the ribbon cable between body of printer and print head cradle, or between that cradle and the print head itself.

Writing this has given me one further thought, which is to re-upgrade the firmware (done many moons ago) to see whether this will reset something in the {Content Removed: Language Filter Evasion} thing.

[73449]

Colors print but black is gray - hardly visible

Help!!

[dpoore1031]

Used your idea, didn't work at first, tried again and used a can of compressed air to remove gobs of black ink, now good as new.  Thanks a lot.

[cwilliamc46]

How to get in to the manually reset the printer after boiling and replacing printhead????

[cxnarua]

Bob, I have the HP Photosmart C309g printer.  I tried your suggestion on cleaning the printhead.  WOW, I'm impressed.  I followed your instructions, step-by-step .... it worked perfectly.  THANKS.............

[AllowUs]

Did as suggested and the printer failed completly. Upon repower and restart the error message is:

Printer Failure

0xc19a0013

Please turn printer offrestart printer.

So much for warm water soak for the printer head.

This this now just a plinking target and Mr. Hewlett and Mr. Packard have been spaired what would have been to them, great engineers that they were, a hugh humiliation in the performance of their company and a piece of technology with their names on it. But not the current management, their names are not on the equipment and their souls have been removed so the possibility of guilt is the same ad dividing by zero.

[Bob_Headrick]

---

@AllowUs wrote:

Did as suggested and the printer failed completly. Upon repower and restart the error message is:

 Printer Failure

0xc19a0013

Please turn printer off restart printer. [snip]

---

What printer model? The page here should help, assuming you have not done anything destructive to the printer at this point.

[Barb9492]

You referenced soaking the printhead in hot water. Really? The whole thing? And did you just throw away the cartridges or somehow protect them from drying up while they were removed?

I cleaned the printhead and printer connections with cotton-tipped applicators dipped in ethanol. It restored some of my black printing the first time, but when I did it a second time, I got an error read out of printhead failure. I have turned off the printer and am hoping for a miracle if I let it sit overnight.

[TucsonFrank]

Thank you very much. Great instructions! Worked perfectly. I was afraid I was buying another printhead.