I have a HP 6510 that is having a strange problem I have been unable to fix. I have uploaded some scans to make it clearer.
That first image is actually supposed to be a full table but as you can see it only prints a small amount, just a few mm then skips over a cm and repeats all the way down.
The second and third image show that 1) There is some variation in it and 2) That even when its skipping the text it still prints the grey background colour. Those two are printed from a PDF if that might explain the 2nd point at all.
It is only effecting the Black, everything else prints fine. Naturally my first step was to change the black ink cartridge which was only a few days old anyway, this didn't fix it. I have also ran the printers alignment and print head cleaning programs multiple times. Including the print clean included on the software that allows for a deeper clean if the initial clean fails. None of this has helped. I have also cleaned the printer and cartridge contacts as instructed on the HP website.
This happens when printing and also when copying a scanned page so its not a problem with the settings on the computer or anything like that.
I would greatly appreciate any help you could offer, thanks.