can you describe you problem Bai? most of the time if its defective it really need to be replaced.
Hi ,in one of your posts you were mentioning the mylar valve in MP 9000 Toner pump can you please give me a exploded diagram of the pp I am having problems with the pump no matter what Toner I use please help me out my mail I'd a_sureshdas@yahoo.com I am from Bangalore India thanks
