Hello, i'm new to use printers, i wonder if there is a way to force the printer to work only with Black ink. as i don't really need the color ink. when i try to print anything it gives me this error: An ink cartridge cannot be recognized.
its asking me to insert a color ink but i really don't have it

thanks!Sorry, you have to have the color ink in place.   
The problem with printer ink is a sore spot with a lot of people. They make money on the ink. And that is why some many third-parties are selling replacement ink cartridges that have been refilled at a fraction of the original COST.

This story is from 2006 and not much has tinged.
http://www.theamericanconsumer.org/2008/09/ink-scam/
Controlling the Price of Ink – What Can Consumers Do?
Quote

...  The study reports that inkjet printers are priced with little or no margin and, according to some authorities, well below cost in many cases.  The immediate result is to impede market entry.  MOREOVER, because these cartridges are seldom interchangeable between different printer models, there appears to be diminished price competition in the inkjet cartridge market.  The combination of the lack of price competition and barriers to entry has resulted in a concentrated market, as depicted below. The lack of competition has led to high ink PRICES and profits, according to the study.