Canon MP21DX 12-Digit 2-Color Printing CalculatorEfficient Financial Calculations with Clear Documentation The Canon MP21DX Desktop Printing Calculator is designed for efficient and accurate financial calculations. Featuring large, well spaced keys and a bright fluorescent display, this calculator ensures ease of use and clear documentation with its fast black red printing capability. Specifications: Display: 12 Digit Fluorescent Display Printing Speed: Up to 3. 5 lines per second Print Color: Black