A high speed magnetic printer

A nonimpact magnetic printer is described that features quiet high-speed operation, uses plain paper and single component dry toner, and produces good copy at high humidity. The printer operates at 6000 lines/minute at a density of six lines per inch (lpi). A stationary printing head, 14-in long, records rows of dots at 120 dots per inch (dpi) on a flexible magnetic belt. The recorded dots are selected by a coded digital input to form alphanumeric characters. The system can also function as a plotter. The 1680 printing locations on the magnetic recording head are selected by a coincident current scheme that utilizes novel integrated drive circuitry. The magnetic image is developed with a single component dry magnetic toner and the toner image is transferred to paper and thermally fused thereto.