TRANSFER DEVICE AND IMAGE FORMATION DEVICE
To provide a transfer device that prevents end transfer failure at the end in the width direction of a recording medium.SOLUTION: A transfer device comprises an intermediate transfer belt in which a toner image is transferred on its surface, a support roll for supporting the intermediate transfer be...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a transfer device that prevents end transfer failure at the end in the width direction of a recording medium.SOLUTION: A transfer device comprises an intermediate transfer belt in which a toner image is transferred on its surface, a support roll for supporting the intermediate transfer belt, and a transfer unit for transferring the toner image on the intermediate transfer belt onto a recording medium, which has a transfer belt and a transfer roll arranged so as to face the support roll through the transfer belt and the intermediate transfer belt. The volume resistance value of the transfer roll is equal to or less than one tenth of the system resistance value when a current of 120 μA is applied between the support roll and the transfer roll.SELECTED DRAWING: Figure 1
【課題】本願の課題は、記録媒体の幅方向の端部における端部転写不良を抑制する転写装置を提供すること。【解決手段】表面上にトナー像が転写される中間転写ベルトと、前記中間転写ベルトを支持する支持ロールと、前記中間転写ベルト上の前記トナー像を記録媒体に転写する転写ユニットであって、転写ベルトと、前記転写ベルト及び前記中間転写ベルトを介して前記支持ロールに対向配置される転写ロールと、を有する転写ユニットと、を備え、前記転写ロールの体積抵抗値は、前記支持ロールと前記転写ロールとの間に120μAの電流を流した時のシステム抵抗値の十分の一以下である転写装置である。【選択図】図1 |
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