DRUCKEINRICHTUNG MIT EINEM ELEKTROTHERMISCH BETRIEBENEN DRUCKKOPF.

摘要

The printer utitise droplets in the form of vapor bubbles. The unit has a print head (10) wityh a number of heating elements (11) and is mounted on a carriage that moves along the print line. The unit is controlled by a central unit (Z5) and a sensor (5) determined the vapour timing of the heating elements. The sensor circuit has the conductivity of the heating element monitored and a signal is applied to an amplififer (24) for input to a comparator (26). The output controls a timing stage (27) to regulate the operation of the head.