发明名称 |
TRANSFER DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME |
摘要 |
A transfer device includes a rotatable image bearing member to bear a toner image on a surface thereof, a nip forming member to contact the surface of the image bearing member, and a bias output device to output a bias current to alternately form a transfer-direction electric field to transfer toner charged with a normal polarity in a toner image formed on the image bearing member to move therefrom to a recording medium and a return-direction electric field to return the toner from the recording medium to the image bearing member. A transition time T1 from a first time at which a current for forming the transfer-direction electric field reaches its maximum (It) to a second time at which a current for forming the return-direction electric field reaches its maximum (Ir) is longer than a transition time T2 from the second time to the first time.
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申请公布号 |
US2013121714(A1) |
申请公布日期 |
2013.05.16 |
申请号 |
US201213651776 |
申请日期 |
2012.10.15 |
申请人 |
TANAKA SHINYA;SUGIMOTO NAOMI |
发明人 |
TANAKA SHINYA;SUGIMOTO NAOMI |
分类号 |
G03G15/16 |
主分类号 |
G03G15/16 |
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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