发明名称 |
Image forming apparatus that includes a first developing device that holds a black developer and a second developing device that holds a gray developer |
摘要 |
An image forming apparatus includes a plurality of developing devices. Each developing devices performs an electrophotographic process to form an image. The image forming apparatus comprises a first developing device and a second developing device. The first developing device holds a black developer containing a first black coloring agent. The second developing device holds a gray developer. The gray developer contains a second black coloring agent and a coloring agent of a chromatic color. The chromatic color is a complementary color to the second black coloring agent. |
申请公布号 |
US8285162(B2) |
申请公布日期 |
2012.10.09 |
申请号 |
US201113326920 |
申请日期 |
2011.12.15 |
申请人 |
KOIDO KENJI;OKI DATA CORPORATION |
发明人 |
KOIDO KENJI |
分类号 |
G03G15/08 |
主分类号 |
G03G15/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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