发明名称 |
Toner deterioration judging method, image forming apparatus and developing apparatus |
摘要 |
A toner deterioration judging method includes measuring a time taken for a recess formed on a toner surface to be evened due to flowability of the toner, and judging deterioration of the toner in accordance with the measured time. |
申请公布号 |
EP2233985(A1) |
申请公布日期 |
2010.09.29 |
申请号 |
EP20100154437 |
申请日期 |
2010.02.23 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
SATO, MAKOTO;IKAGAWA, TAKAMASA |
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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