How can I set up my Canon MP530 printer to use only the black cartridge? -

I have just discovered that my colour cartridges are empty because I did not realise that they were being used when I asked for grayscale printing. As these cost ~$100 and I haven t been printing in colour, this is a big waste of money. BUT I cannot find anywhere to ask for black and white printing. Please help!

that is because you cannot. The black is actually a Grey cartage which requires all three co lours to darken and sharpen to get a decent print. If you do want to conserve in print in greyscale on fast draft mode. Sure the quality is lacking but at least you are conserving ink.