| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of irregularities in a primary transfer toner image and/or a secondary transfer toner image due to a leaked electric current without causing the irregularities in an image due to unexpected discharge between an intermediate transfer belt and a peripheral grounding member. SOLUTION: Transfer surface destaticizing needles 71Bk, 71Y, 71M and 71C which are not brought into contact with the transfer surface of the intermediate transfer belt and transfer back face destaticizing rollers 72Bk, 72Y and 72M and 72C which are brought into contact with a transfer back face are provided as a destaticizing means for both sides of the intermediate transfer belt 10. AC bias whose amplitude is 5(kV) is applied to the transfer surface destaticizing needles by a power source (not shown in a figure). The transfer back face destaticizing rollers are grounded. Thus, both sides of the intermediate transfer belt positioned between primary transfer nips and between a primary transfer nip Nc and a secondary transfer nip are destaticized. COPYRIGHT: (C)2004,JPO
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