The Seiko-Instruments DPU 414 printer is a desktop thermal serial printer incorporating the STP printer mechanism that ensures silent and high-quality printing. It can print not only characters, but also highdensity graphics. In the quadruple-density bit image mode, 640-dot (max.) CRT display hardcopy is possible (with horizontal vs. vertical ratio being 1: 1). Due to its compact size and built-in battery the DPU 414 is ideal for portable applications.