Kestrel_909 - yes, all shades of grey printable. Very sharp printing it is too. And fast...
Incidentally, no-one has yet mentioned that laser printers need another consumable cartridge unit - the drum. This, I believe, is is the gadget that puts the powder from the laser cartridge onto the paper. They do last a long time, but it's another thing you have to buy occasionally (about £80-ish); they will probably last for 5 or 6 powder cartridges. (That's guesswork, by the way, but it gives you the idea).