HP photosmart 6510 prints pictures with blue tinge

SOURCE: HP Photosmart 8450 Ink Level Indicator

replace the ink cartridges

SOURCE: Black ink not working on HP C5180 Photosmart

Try a hard restart, which simply means unplugging the power cord of the printer, and replugging it after one minute has passed. If that does not work, then rerun the CD used to install the printer. Both techniques reprogram the electronics, to a certain extent.
You can also visit the HP website, to see what solutions are being offered for various printer problems. They probably have a number to call, in case you need to talk to a technician.
Hope these suggestions help you out.

SOURCE: HP photosmart c7280 printing photos with purple hue

Does the c7280 use seperate Magenta and PhotoMagenta cartridges? If so make certain the right cartridge is in the correct slot.

SOURCE: HP 5280 Photosmart won't print??

I replaced my ink cartridge on my HP 5280 Photosmart. Now it says, "refer to printer documentation". What do I do?

SOURCE: My refilled ink cartridge still displays empty and will not print

The ink cartridge is most likely chipped & you would not be able to reset the ink level. Purchase an original or a good compatible cartridge. Refiling newer cartridges is not a good idea.