| 摘要 |
PURPOSE:To provide an electrophotographic developer having such satisfactory electrostatic chargeability that the amt. of electric charges is always moderate and stable, excellent in shelf stability and image stability because of moderately kept flowability and having such high reliability to environmental dependency as to highly and stably maintain image density at low temp. and humidity. CONSTITUTION:This electrophotographic developer contains toner particles contg. at least a resin and a colorant and fine barium sulfate powder surface- coated with tin oxide-antimony or tin oxide-antimony oxide. |
