Electrically charged deflection type multi ink jet plotter

Abstract

Abstract PURPOSE: To obtain the title plotter capable of improving the quality of printing image as a whole, void of conspicuous demarkation line of printed portion by nozzles, provided with selection circuit which selects nozzles for printing duplicated portion to be printed by the adjoining nozzles. CONSTITUTION: Signal generated by the clock A is inputted into the sexagesimal counter 2, whereby output b which rises by the 59th pulse and falls by the 60th pulse, and output j which rises by the 60th pulse and falls by the next pulse are outputted. By driving charging terminal array 16 of the selection circuit, printing selection from nozzles is performed. The selection circuit is provided with AND circuit 3, binary counter 4, monomulti 6, OR circuit 9, 1, line memory 11, latch circuit 13, and shift register 14 having AND circuit 15. Because 60th pulse array and 58th pulse array (the 1st and the 60th are not provided) are outputted in turn, printing is performed on the overlapped portion such that more than one dot is overlapped and printing is made by a line alternately which makes the demarkation area of the printed image continuous and inconspicuous. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Tatsuya Furukawa

Bibliographic Details