ELECTROSTATIC RECORDING APPARATUS

摘要

PURPOSE:To provide the title apparatus capable of using plain paper, accelerated in miniaturization and stably forming a sharp recording image having high resolution and generating no background staining over a long period of time by parallelly arranging a plurality of recording electrodes to a vertical transfer route and arranging opposed electrodes so as to hold a minute gap and applying AC bias voltage to the opposed electrodes. CONSTITUTION:A transfer charger 4 is arranged to the image transfer part T on the downstream side of a stand-by roll pair 3 in opposed relation to a cylindrical electrode 5 also used as an image carrying body. An AC bias power supply 5a capable of outputting AC bias voltage obtained by superposing AC voltage on DC voltage of negative polarity is connected to the cylindrical electrode 5 The position W where the peripheral surface of a developing sleeve 15 most approaches the peripheral surface of the cylindrical electrode 5 so as to hold a minute gap on the downstream side of a doctor blade 12a becomes a recording position and the magnetic toner (d) transferred to the position is selectively transferred to the peripheral surface of the cylindrical electrode 5 corresponding to recording data to form a toner recording image. The minute gap at the recording position W is desirably set to 100mum or less.