6510 has stopped printing

[gobraves9]

I have a 6510 that worked perfectly until yesterday.  I got a message to replace the cyan then the black.  Before I replaced the black the few print jobs I completed came out completely in yellow.  I have replaced the black and now the printer will not actually print.  I have cleaned the heads, the cartridges run all the diagnostics available on HP.  I have run all the tests required (the reports will not print)  I have taken the cartridges out and put them back in (and removed all the tags).  I have turned the machine off then on.  Any ideas?

[Bob_Headrick]

The post here may help.

[gobraves9]

Thank you for your post.  This did not solve my prinintg problem.  

[Bob_Headrick]

OK, in that case a few more questions:

• Does the printer go through the motions of printing but the pages are blank?
• Does the copy function work or are the pages blank?
• Are there any error messages on the printer or computer?

[gobraves9]

The printer does go through the motions of printing, pages come out but yes, they are blank.  At first they appeared as only yellow, then I could see some black but no color, now each page is completely blank.