The authors have presented a new imaging system involving the photo-electrolytic image dye formation on the zinc oxide photoconductive layer. To prepare the imaging sensor, 4 ( p -dimethylaminostyryl) quinoline was coated on or dispersed in the zinc oxide-resin layer which was supported on the Aluminium sheet. We have demonstrated the dependence upon several factors for dye formation. The mechanism of the photo-electrolytic reaction have been discussed from the experimental results.