Not sure this is the right place to post this, but here goes! I have an HP printer. Never been happy with it, but it's all I can afford right now. Another thing I can't afford is the ridiculous cost of ink cartridges. I only print black when printing documents and I always set my printer for "fast draft, black and white". However, for some reason my color cartridge is also used when printing black. I think HP's explanation is that the printer has to use magenta, etc. to print a true black. I think that's total BS. Has anyone ever tried putting a black ink cartridge in their printer on the black slot and also the color slot? Will that work? Any other suggestions would be appreciated. I just paid 70 bucks for a black and color cartridge (XL) at Costco and can't afford to do that again. Thanks.