The "government" in "teen to government" was the GPO, yeah? So the price of printer cartages would only be relevant if the GPO used them.
Except you added "home printing", so you're not talking about the proposal the article is about. In which case you can probably find instructions for refilling your printer's cartridges. There are probably kits for your printer, but you usually just need some syringes and process inks. Or Office Max will do it for you, which will be more expensive but much less expensive than buying new ones.