发明名称 HIGH-VOLTAGE OUTPUTTING DEVICE, METHOD FOR CONTROLLING HIGH-VOLTAGE OUTPUT, AND IMAGE-FORMING DEVICE
摘要 PROBLEM TO BE SOLVED: To control the output of a high-voltage outputting device with serial data without causing circuits to malfunction. SOLUTION: A high-voltage outputting device is provided with a controller 1, which generates serial control data, a shift register 2 which converts the serial control data generated from the controller 1 into parallel control data, and a high-voltage generating circuit 7 which generates a high voltage. The outputting device is also provided with a plurality of high-voltage control circuits 6a-6h, which output prescribed control voltages by controlling the high voltage from the circuit 7 based on the parallel control data. The outputting device transfers the serial control data generated from the controller 1 to the shift register 2 at a high frequency, which is higher than a prescribed clock frequency and sets the converted parallel control data in a latch circuit selected by means of a decoder 3.
申请公布号 JP2001078468(A) 申请公布日期 2001.03.23
申请号 JP19990253278 申请日期 1999.09.07
申请人 CANON INC 发明人 MOTOYAMA HAJIME;WATABE MICHIKO
分类号 G03G21/00;B41J29/38;H02M3/28;H02M7/48;H02M7/537;H03M1/66;H03M9/00 主分类号 G03G21/00
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