| 摘要 |
PURPOSE:To obtain a lightweight and long-life developer by using hollow spherical particles consisting of a hollow ferritic material for carriers. CONSTITUTION:Powder of hollow spherical particles consisting of a ferritic material such as ceramics is used for carriers, whereby the surfaces of the carriers are made smooth, and uniform in shape and quality, and the lightweight and long-life developer is obtained without producing any spent toner. Stable images are obtained by such toner. |
