发明授权
US4553870A Impact type color printer 失效
冲击式彩色打印机

Impact type color printer
摘要:
An impact type color printer is provided a control circuit which produces a random digit signal each time the printer is connected to a power supply, according to which random digit signal a platen is rotated so that one of plural impact sections axially arranged in each ink saturated member of different color is selected at random and positioned just opposite to a printing head to be subjected to impact thereby for printing operation.
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