you can not just print money for paying debts, for your information, the amount of money is relative to the economic status of a certain country and it needs resources to do so. Printing is not as easy as it sounds because it has process that it undergoes not just print and print until you have enough money. If a country printed more money and not considering their economical status, then that money will become worthless or has less value. If it is used to pay debts, it will affect the economy of a country,there will be inflation or something like that.If you recall on your economics class,  the law of demand and supply plays a big role here because you can not just easily increase your supply because it has a great negative effect on the economy of a certain country.