04-24-2014 03:27 AM
HP may not let you print with a depleted color cartridge, but my other printer does. Now, I know why I don't purchase HP printers.
04-25-2014 09:20 AM
There are different technologies used for printing and they have different tradeoffs. Typically printers with printheads integrated with the ink supplies will allow printing with one cartridge empty, or in many models even removed completely.
Printers with seperate ink supplies and printheads, with plumbing to connect them typically require ink in all colors and black to avoid air in the plumbing or clogged printheds. This is especially important in printers with permanant, non-replaceable printheads.
The above is generally true regardless of the printer manufacturer. Running a printer with permanent printheads completely out of ink in any color may damage the system. See the document here for a discussion of how ink is used in HP printers. This also applies to other manufacturer's products.
Bob Headrick, HP Expert
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