Electrophotographing apparatus with first and second charge devices
AssigneeCanon Kabushiki Kaisha
InventorsSatoru Fukushima, Makoto Ohki
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Abstract
This invention relates to an electrophotography apparatus with a photosensitive body, first charge devices for performing a first charge process to form an image on the photosensitive body, a transfer charger for transferring the image formed on the photosensitive body onto a transfer material, and potential applying device for setting the photosensitive body at a predetermined potential by simultaneously performing a second charge process having the same polarity as a polarity of the first charge process and a full-surface exposure process on the photosensitive body, after the image is transferred by the transfer charger and before the first charge process is performed by the first charge device.
Claims18
An electrophotographic apparatus, comprising:
- a photosensitive body;
- first charge means for performing a first charge process to form an image on said photosensitive body, said first charge means having a polarity;
- transfer charge means for transferring the image formed on said photosensitive body onto a transfer material, said transfer charge means being applied a current of opposite polarity to the charge polarity of said first charge means;
- and
- potential applying means for setting said photosensitive body at a predetermined potential after the image is transferred by said transfer charge means and before a next first charge process is performed by said first charge means, said potential applying means comprising second charge means, to which a DC voltage of the same polarity as the charge polarity of said first charge means is applied for charging said photosensitive body at the charge position, and exposure means for exposing said photosensitive body at the charge position, wherein the charging by said second charge means and the exposure by said exposure means are performed simultaneously.
Dependencies are inferred from the claim text.