I am not happy. I was curious so I opened up a black toner cartridge that the printer said was spent, and it had TONS of toner in it. I am tired of the page counter assuming they are empty. Is there a hack for the page counter? 95% of what I print are envelopes which dont use a lot of toner, but I am getting dinged for each one as if I printed a page. How can I get use out of the toner that is left in the cartridges? 