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08-03-2012 07:03 AM
Also having the same problem. I returned my first cartridge thinking there was a problem with it. Got a new one and it worked fine for about 3-4 days, now NO black ink again. The other colors work fine. Did you get any help or find out what the problem was?? My printer is a HP Officejet 6500.
08-06-2012 02:52 PM
The community will need some more info in order to help out. What model of OJ 6500 is this printer? There are over 5 different OJ 6500 printer models. Did you clean the printheads from solution center or from the front panel of the printer or did you clean the printhead manually by hand?