I just replaced by black ink on HP Officejet 6500. It will not print black thought it maybe the cartridge I replaced it again. Still want print. I tried three new cartridges. The color works fine KAy

Hello,

The HP 6500 printer has separate in cart and print heads. The light print you are getting is because the print head in clogged with dry ink. First thing to try is to go into the printer software on your computer and do a print head cleaning procedure, this will take a few minutes to finish. You may have to run this several times to clear out the dry ink. If this does not solve the problem when you will need to get a replacement print head, the part number is CB868-30002

Unplug the printer for at least overnight. I have 3 of these printers and all 3 have done this. All 3 came back after being unplugged for a long period.
Personally, I think a class action suit might be in order.

I also have the OfficeJet 6500 and had the same problem. The black text was printing using a mix of colored inks instead of the black ink, resulting in a grey, fuzzy text. I finally found a solution. In each application under Page Setup, there is an option called "Format for". Mine had been set to "Any Printer". I changed that to "Officejet 6500 E709n [830E4A]" and now it prints the black just fine. I have a Mac running 10.4.11. Hope this helps.

maybe your print head is dried. try inject print head cleaner inside your cartridge and wait.

not ridiculous as the new printer costs less than replacement cartridges
check for ink in the black cartridge
check that the driver is still connected
check for compatibility with the pc

The cartridge must be faulty.

My printer did that a few months ago. I tried everything to get it printing black but in the end I had to take the ink cartridge back and return a new one. Some ink cartridges dry out when they are being shipped if not stored in proper conditions.

Print test page in the software, if no blue try print head clean again, if no go return cartridge for replacement.

Is it genuine or refilled??

Hi, When using refilled print cartridges, the Estimated Ink level and the Printer Status Window may indicate that the print cartridge is out of ink. Either continue to use the print cartridge until print quality degrades, or replace the print cartridge with a new HP print cartridge.

The methods of replacing the ink cartridge of the printer follows here:
Open the printer cover
The printer ink carriage will automatically goes to center
Once the carriage is in the center, the printer was ready to replace the ink.
Pull the down slowly the ink tank off the carriage..
Remember the place where the color/black position.
Remove each tank one at a time, and replace the ink with a new one.
Close the printer cover and it now ready to printer.

HP Deskjet 6500 Series Printer - Setting Definitions

Hope the instructions provided helps.

This video shows how to change ink cartridge on HP 6500 and 6500A