OfficeJet Pro 8500 has left black print all the time

Just recentily my printer prints as if it was almost out of black ink (text has missing parts and streaks).  If I have a third level cleaning I can finally return to normal black.  After a few printed pages, it begins printing with portions of the rear lack again.

When I do the cleaning of the print head of all colors but black shows correct in the first and second level cleaning.

All the ink cartridges show good levels.

Show the print heads.

My question is my back ink cartridge would be haviing a power problem the ink in the print head?  Is there something in the third level of cleaning that would make the flow of the ink properly for a short time?  This problem appeared after I replaced the black ink, but not immediately.  I have always used HP ink cartridges in the printer.  I'm tempted just ro replace black with another cartridge to see which takes care of the problem but didn't do it if anyone else had the problem and found a solution.

Just tried to replace the cartridge with a new back and I'm having the same problem with it.


Hey there 3R.

Thanks for the images and information! Which really kinda helps.

I notice that the black is better temporarily by the third cleaning, and also consider other colors, I have noticed them all degrading by the third cleaning. According to me, this looks like a problem with the two print heads, now I can visibly see Printing outs. The yolk is less apparent among peach and green and the cyan and magenta also show a lower quality tone.

Replace the print heads cannot guarantee a fix.

I always suggest calling HP to see what are your options for a trade.

I hope that my opinions and suggestions helped you some.

All the best,

Tags: HP Printers

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