I HAVE A HP PRINTER "PHOTOSMART C5580" HOW DO I GET TO CHANGE THE DEFAULT INK. I VERY SELDOM PRINT IN COLOR, AND WOULD LIKE TO BE ABLE TO ALWAYS PRINT IN BLACK ONLY, EXCEPT WHEN I NEED TO GET COLOR AND TO BE ABLE TO CHOOSE THAT. THEN NORMALLY RETURN TO BLACK. CAN YOU HELP?

To replace the ink cartridges
1. Make sure the HP All-in-One is turned on.
2. Open the ink cartridge door by lifting from the front center of the device, until the door locks into place.
3. Squeeze the tab below an ink cartridge to release the latch inside the HP All-in-One, and then lift the latch.
If you are replacing the black ink cartridge, lift the latch on the far left.
If you are replacing one of the five color ink cartridges, such as yellow, light cyan (blue), cyan, light magenta (pink), or magenta, lift the appropriate latch in the center area.
4. Pull the ink cartridge toward you out of its slot to remove it.
5. Remove the new ink cartridge from its packaging, and then, holding it by the handle, slide the ink cartridge into the empty slot.
Make sure that you insert the ink cartridge into the slot that has the same shaped icon and color as the one you are installing.
6. Press down on the gray latch until it clicks into place.
7. Repeat steps 2 through 5 for each ink cartridge you are replacing.
8. Close the ink cartridge door.

re Printing in black only - you can do this by selection this option from your application and choosing the print properties of the printer and setting to Black / Greyscale printing only.