Canon MP21DX 12-Digit 2-Color Printing Calculator

The Canon MP21DX is a full-size desktop printing calculator designed for accounting professionals, bookkeepers, and office environments where a paper trail matters. Its 12-digit fluorescent display is brighter and more readable than typical LCD screens, especially in low-light conditions, and the angled viewing position reduces eye strain during prolonged use. The large, well-spaced keys are built for speed and accuracy, complementing the fast two-color print mechanism that outputs at up to 3.5 lines per second — black for positive values and red for negative, providing instant visual differentiation on the printed tape.

Beyond basic arithmetic, the MP21DX includes financial functions that office professionals use daily: tax calculation, mark-up, mark-down, an item counter, and a grand total key. Additional features like a decimal switch, rounding switch, sign change, and double zero key give you precise control over how calculations are handled and displayed. Powered by the included AC adapter, it delivers consistent performance without the cost or inconvenience of battery replacement. The calculator ships with a paper roll and measures 3.7 by 9 by 12.2 inches — substantial enough to stay planted on a desk, which is exactly where a printing calculator belongs. Canon backs it with a one-year manufacturer limited warranty.