MY NEW 6500 WIRELESS ALL-IN-ONE PRINTER ONLY PRINTS IN BLACK AND

You should be able to print in black and white by going into the "printing preferences" menu and then click on the "color" tab. Click " print in greyscale", then click "apply". Good Luck !

Send the cartridges back! HP cartridges are coded and will only work with HP printers. Hp has had problems with their coded cartridges. Especially if they were manufactured overseas. Their own product won't recognize the cartridges. It is not the printer it is the cartridges.

This printer having four cartridges and two print heads.Each print head having two pens, black, yellow & magenta,cyan. As you said yellow & black are OK.. So replace Magenta & Cyan print head..

If you are printing using a color (not "black cartridge only" ) driver, yes, the printer won't print because it uses a "process black" when you use a color driver.
In other words it creates black using the 3 colors, and doesn't actually touch the black cartridge.
You will need to change the default driver to one that you create.
go into control panel, hardware and sound, devices and printers (win7)
right click the officejet 6500 (not the fax driver) and click printer properties
click the advanced tab, and click printing defaults
click the fast economical printing template.
Change "print in gray scale" to Black Ink Only
Click "save as" and name the profile "black draft"
click the newly created "black draft" profile, and click APPLY and OK
This will now be your default, and it will print in black and white while the color cartridges are empty.

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.

Make sure the plastic is removed from the cartridge and it is seated properly. make sure to use genuine cartridges. You may have just got a bad one.

You need to have color cartridges installed for your printer to function. You can however print black and white with empty color cartridges. If you do this you may damage the print head and not be able to print in color again. If you can live without color printing I recommend a monochrome laser printer. It will never print color, costs 1/2 as much to print with, won't dry out, and the cartridges last way longer than ink cartridges.

you may use non genuine or expired cartridge, or does not pick the sticky paper over the head nozzle (refer to cartridge installation manual)

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.

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.