Why does my machine's LCD show "NO CARTRIDGE" even though I have already installed all the ink cartridges?

I replaced my ink cartridge, but the LCD is still displaying "Ink Empty".  What can I do?

When selecting grayscale printing in the printer driver, does this use only the black ink or all the ink cartridges to produce the grayscale image?

Why can't I print when an ink cartridge is empty?

How do I replace the Ink Cartridge?

Is there a way to view how much ink is remaining?

The ink cartridges run out very quickly. Is there any reason for that?

Can I print using only the black ink cartridge when the Color cartridges have run out?

Is there any way to reduce Ink consumption when printing from my computer?

Why do the color ink cartridges run out of ink even though I never or rarely print in color?