Toner refill I've emptied the cartridge that came with my printer in about 3 weeks. I have no intention of paying the cost of the printer again to refill it. There isn't a kit for my specific model (Samsung ML-2510) on ebay, will any other Samsung brew do? I assume it's just some black stuff that gets burnt to paper? Out and out quality isn't a problem, I'm just printing reams of text Ta all