초록 ▼

The present invention relates to the cleaning of an intermediate transfer member of an image forming apparatus for transferring a toner image formed on a photosensitive member onto the intermediate transfer member and then transferring the toner image onto a transfer material. An effective cleaning

The present invention relates to the cleaning of an intermediate transfer member of an image forming apparatus for transferring a toner image formed on a photosensitive member onto the intermediate transfer member and then transferring the toner image onto a transfer material. An effective cleaning width of a cleaning means for removing residual toner remaining on the photosensitive member in a width-wise direction of the photosensitive drum is selected to become greater than a longitudinal dimension of the intermediate transfer member, the longitudinal dimension of the intermediate transfer member is selected to become greater than a width of a transfer electrode for transferring the toner image on the intermediate transfer member, and the longitudinal dimension of the intermediate transfer member is selected to become greater than a charge width of an electrode for charging the residual toner on the intermediate transfer member to return the toner to the photosensitive member.

대표청구항 ▼

[ What is claimed is:] [1.] An image forming apparatus for transferring a toner image formed on a photosensitive member onto an intermediate transfer member and then transferring the toner image onto a transfer material, comprising:cleaning means for removing residual toner remaining on said photose

[ What is claimed is:] [1.] An image forming apparatus for transferring a toner image formed on a photosensitive member onto an intermediate transfer member and then transferring the toner image onto a transfer material, comprising:cleaning means for removing residual toner remaining on said photosensitive member after the toner image on said photosensitive member is transferred to said intermediate transfer member;transfer electrode means for transferring the toner image transferred to said intermediate transfer member onto the transfer material; andelectrode means for charging toner remaining on said intermediate transfer member to return the toner remaining on said intermediate transfer member to said photosensitive member by re-transferring, after the toner image on said intermediate transfer member has been transferred;wherein a longitudinal dimension of an effective cleaning width of said cleaning means is greater than a longitudinal dimension of said intermediate transfer member, the longitudinal dimension of said intermediate transfer member is greater than a longitudinal dimension of said transfer electrode means for transferring the toner image on said intermediate transfer member, and the longitudinal dimension of said intermediate transfer member is greater than a longitudinal direction of said electrode means for charging the residual toner on said intermediate transfer member.