The Printer is not sensing the Black Cartage

I purchased new HP Officejet Pro K5300 Coloured printer. The printer worked satisfactorily for a few prints,but suddenly stopped printing.I got it checked at HP Printer service Center at AGRA.After checking they said the Black cartage is not being senced by the printer.The service center put their own Black cartage.It worked well.As such they found the Black cartage deffective.On their recomendation I gave the black cartage to the Collecting Center M/S Media House Mobile Cell,Ph.No.05622856111, Mobile No.9837018151 Vide receipt No.214 on 20.10.2008.I awaiting the result.Please help me.