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    • 18. 发明专利
    • PRINTING HEAD FOR MAGNETIC DISPLAY AND MAGNETIC DISPLAY TO USE THE PRINTING HEAD
    • JPH0239087A
    • 1990-02-08
    • JP18928488
    • 1988-07-28
    • YANAI TAKESHISUGA JUNICHIROHASEGAWA TAKASHI
    • YANAI TAKESHI
    • B41J2/43G09F9/37
    • PURPOSE:To execute a display at a high speed and simultaneously, with a good reproducibility by using plural electromagnets arranged in a matrix as a printing head and drawing arbitrary character and graphic with the selective excitations of the magnets onto a magnetic display carrier. CONSTITUTION:A printing head H is composed of (jXk)-number of electromagnets M arranged in j-rows and k-columns, respective terminals 6 are connected to a voltage impressing means, a voltage V is selectively supplied to the necessary terminal, and a terminal 7 is commonly connected to a common terminal E. In such a case, the combination of the electromagnets M is selected by a proper program means in corresponding to the character and graphic to be drawn, and by impressing the voltage to the selected electromagnets simultaneously, the character and graphic are displayed on a magnetic display sheet 1, and when the impression of the voltage is stopped, the magnetized condition of the electromagnets is demagnetized, and a display condition on the other sheet can beheld also by the relative movement of the sheet 1 and head H. Thus, the display can be executed at a high speed and simultaneously, with a good reproducibility.