6510 printing faint gray instead if black

[NoshOwin]

I just replaced my black ink cartridge on my HP Photosmart 6510 model. When I tried to print, it only printed out colors. The black font was very very faint grey. You could barely see it at all. I've already tried aligning the printer, cleaning the printhead, taking the cartridge out and putting it back in, restarting the printer, unplugging the printer. I've tried everything. I don't think it is the cartridge itself. It's the printer. Any help? I'm going crazy!!

Thanks

[silvyg]

Hi,

Please follow this document for the same issue

http://support.hp.com/us-en/document/c03760633

Hope this helps

[NoshOwin]

Tryed all that no good. When you run the alignment said alignment incomplete hit ok to continue and goes back to printing screwed up.

[scubajoe]

The Ink Cartridges must be properly seated and vented to allow ink to flow from the Ink Supply into the Print Head.  The Print Head sits right below the Ink Cartridges and is the part that does the actual printing.  From youre description (new black supply, but very light black text) it sounds like the Print Head is not able to suck ink out of the Supply.   Whenever you re-install a supply the printer should try and prime the system (get fresh ink from Supply to the Print Head).    That's some of the strange noises you can hear after installing an ink supply.

Check that you are getting a good seal on the bottom of the supply where it seats onto the Print Head.

Check that it is properly vented from the top so that air can get into the cartridge to replace the ink that gets sucked out.  If it's not venting right the vacuum pressure will build up and the PHA won't be able to suck the ink out. (see instructions above).

[NoshOwin]

Checked seal at base of ink loos good. If you plow little air in cartage like comes out. Tryed to align printer prints in blue only and scream said you may continue but carriages are not calibrated for best print quality touch ok to print

[silvyg]

Hi,

Please call HP tech support, and they will try to isolate the problem to the printer or the cartridge.

thanks

[NoshOwin]

Tryed that they told me it was out of warranty I think I will go replace it with a different brand name this is the second hp printer we have problems with in 3 years