Two-cycle electrophotographic copying apparatus in which a cleaning lamp and a neutralizing electrode are disposed on opposite sides of an electric charging device

Claim 1

In an improved two-cycle electrophotographic copying apparatus including an operatively rotatable photosensitive body, and in which electric charging means, exposing means, transferring means, and separating means are respectively sequentially disposed about the body in the direction of its rotation for operation during a first rotation of the body to produce a toner-based copied image of an original, while cleaning of residual toner from the photosensitive body is effected during a second rotation thereof to prepare the body for a next succeeding copying operation, the improvement comprising: preliminary processing means for preparing the body for subsequent cleaning during the second rotation thereof, and comprising a cleaning lamp disposed upstream of the electric charging means and downstream of the transferring means for operatively discharging the photosensitive body of residual electric charge remaining thereon after production of the copied image and thereby facilitating subsequent cleaning of the photosensitive body during its second rotation, and a neutralizing electrode disposed downstream of the electric charging means for neutralizing electric charge on residual toner remaining on the photosensitive drum after production of the copied image.