out of the bath and is coated by the top liquid the amount of coating material used is greatly reduced and the inert liquid can be reused application_number US 4876598 A description the drum 1 to be coated and thereby formed into a photoconductor is an empty aluminum cylinder with outer layer anodized as is standard the first coating on the drum is a charge generation layer gcl which is hardened by driving off its solvent the second outer layer is a charge transport layer gtl which is dip coated over the drum 1 having the hardened charge generation layer and which is then also hardened by driving off its solvent there may be a similarly applied barrier layer between drum 1 and the charge generation layer and there may be a similarly applied outer protective layer although such an outer layer is not widely employed such layers typically employ a binding resin which may be a wide variety of non ionic organic resins such as polystyrenes polyacrylic polyester and mixtures thereof one preferred binder resin for the charge generation layer is polyvinylbutyral with a preferred binder resin for the charge transport layer being polycarbonate as shown in the drawing a cylindrical vessel 3 contains a liquid.