The Canon MP11DX-2 Printing Calculator allows you to make complex tax calculations with ease. It comes with the two-color printing ink system. With this calculator, you can find out the selling price of a product as well as the discount offered on it. Along with other calculating functions, the Canon MP11DX-2 comes with a built-in clock and calendar function that prints the current time and date on the paper. You can also keep your pen the in the detachable pen holder on the calculator.