A brief summary of electrophotographic developer and process sessions in "Japan Hardcopy '92" is reported. In the electrophotographic developer session, studies on tribocharging behavior, toner cloud, shape effect, and electrostatic measurement were presented, but lectures declined to 5 themes although 11 themes had presented in Japan Hardcopy '90 and '91. The main currents of works on the electrophotographic process appear ecology such as recycled paper, charging roller, and roller transfer, and elements of the color copying such as roll fuser, multi transfer mechanism, and so on.
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