A:AnswerAAAtoner on eBay currently sells dry toner to refill drum yourself. Just type in the model number of your printer on the Ebay search engine.
I have not purchased from them directly, but their rating is good and so is the price.
A:AnswerNot as many as I would have liked, but that is typical in a starter cartridge. I would say I probably got 65–75 pages in total out of it. I am using it in an office environment of 12 computers. I would highly suggest getting the higher volume black ink cartridge when you replace it. It's worth the few extra dollars as it gives you far lengthier ink life which will prevent having to order more often.