I know this isn't about photo printing, but I'm sure lots of members here have a good understanding of printers. I received a printer for free from a friend. It won't print because the colour cartridges are empty. I don't want to invest money in more colour ink, I just want to be able to print black in my bedroom (for essays, etc). So, if I fill the colour cartridges with water, will the printer think that they're full? I already have a syringe to do it with, I just want to know if it'll work. I know this sounds silly, but if it works I'm going to do it. The black cartridge is full.