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AssigneeRicoh Company, Ltd.
InventorsMitsuru Takahashi, Satoru Uchida
Estimating the term…
An image forming apparatus includes a transfer device to transfer an image on an image carrier to a transfer sheet. The transfer device includes a transfer roller and transfers an image on the image carrier to a transfer sheet conveyed into a transfer area between the transfer roller and the image carrier by applying a bias voltage to the transfer roller. The transfer device includes a device to apply a release agent for an alien substance to a surface of the transfer roller. Toner and an alien substance, such as paper dust, thereby hardly adheres to the release agent applied on the surface of the transfer roller. Even if toner and/or an alien substance are put on the release agent applied on the surface of the transfer roller, such toner and/or an alien substance are easily removed by a cleaning device. Thus, lowering of an image quality due to insufficient cleaning of the transfer roller is avoided.
An image forming apparatus including an image carrier and a transfer device to transfer an image on the image carrier to a transfer sheet, the transfer device having a transfer roller and transferring an image on the image carrier to a transfer sheet conveyed between the transfer roller and the image carrier by applying a bias voltage to the transfer roller, the transfer device further comprising a release agent applying device to apply a release agent to a surface of the transfer roller.
An image forming apparatus including an image carrier and a transfer device to transfer an image on the image carrier to a transfer sheet, the transfer device having a transfer roller and transferring an image on the image carrier to a transfer sheet conveyed between the transfer roller and the image carrier by applying a bias voltage to the transfer roller, the transfer device further comprising a release agent applying device to apply a release agent to a surface of the transfer roller, wherein the transfer device further comprises a cleaning member to clean the surface of the transfer roller, and wherein a width of the release agent applied by the release agent applying device is narrower than a width the cleaning member cleans.
An image forming apparatus including an image carrier and a transfer device to transfer an image on the image carrier to a transfer sheet, the transfer device having a transfer roller and transferring an image on the image carrier to a transfer sheet conveyed between the transfer roller and the image carrier by applying a bias voltage to the transfer roller, the transfer device further comprising a release agent applying device to apply a release agent to a surface of the transfer roller, and wherein the release agent applying device applies the release agent to the surface of the transfer roller at all times when the transfer roller is rotating.
An image forming apparatus including an image carrier and a transfer device to transfer an image on the image carrier to a transfer sheet, the transfer device having a transfer roller and transferring an image on the image carrier to a transfer sheet conveyed between the transfer roller and the image carrier by applying a bias voltage to the transfer roller, the transfer device further comprising a release agent applying device to apply a release agent to a surface of the transfer roller, and wherein the release agent is solidified and contacts the surface of the transfer roller.
An image forming apparatus including an image carrier and a transfer device to transfer an image on the image carrier to a transfer sheet, the transfer device having a transfer roller and transferring an image on the image carrier to a transfer sheet conveyed between the transfer roller and the image carrier by applying a bias voltage to the transfer roller, the transfer device further comprising a release agent applying device to apply a release agent to a surface of the transfer roller, and wherein the transfer device further includes an elastic intermediate agent applying member between the transfer roller and the release agent applying device so that the release agent is applied to the surface of the transfer roller via the elastic intermediate agent applying member.
An image forming apparatus including an image carrier and a transfer device to transfer an image on the image carrier to a transfer sheet, the transfer device having a transfer roller and transferring an image on the image carrier to a transfer sheet conveyed between the transfer roller and the image carrier by applying a bias voltage to the transfer roller, the transfer device further comprising a release agent applying device to apply a release agent to a surface of the transfer roller, and means for stopping an image forming operation while rotating the transfer roller.
An image transfer device for an image forming apparatus, including a transfer roller for transferring an image on an image carrier to a transfer sheet conveyed between the transfer roller and the image carrier by applying a bias voltage to the transfer roller, the transfer device comprising a device to apply a release agent to a surface of the transfer roller.
An image transfer device for an image forming apparatus, including a transfer roller for transferring an image on an image carrier to a transfer sheet conveyed between the transfer roller and the image carrier by applying a bias voltage to the transfer roller, the transfer device comprising a device to apply a release agent to a surface of the transfer roller, wherein the transfer device further comprises a cleaning member to clean the surface of the transfer roller, and wherein a width of the release agent applied by the release agent applying device is narrower than a width the cleaning member cleans.
An image transfer device for an image forming apparatus, including a transfer roller for transferring an image on an image carrier to a transfer sheet conveyed between the transfer roller and the image carrier by applying a bias voltage to the transfer roller, the transfer device comprising a device to apply a release agent to a surface of the transfer roller, wherein the release agent applying device applies the release agent to the surface of the transfer roller at all times when the transfer roller is rotating.
An image transfer device for an image forming apparatus, including a transfer roller for transferring an image on an image carrier to a transfer sheet conveyed between the transfer roller and the image carrier by applying a bias voltage to the transfer roller, the transfer device comprising a device to apply a release agent to a surface of the transfer roller, wherein the release agent is solidified and contacts the surface of the transfer roller.
An image transfer device for an image forming apparatus, including a transfer roller for transferring an image on an image carrier to a transfer sheet conveyed between the transfer roller and the image carrier by applying a bias voltage to the transfer roller, the transfer device comprising a device to apply a release agent to a surface of the transfer roller, wherein the transfer device further includes an elastic intermediate agent applying member between the transfer roller and the release agent applying device so that the release agent is applied to the surface of the transfer roller via the intermediate agent applying member.
Dependencies are inferred from the claim text.