COATING APPARATUS

PURPOSE:To make it possible to obtain a coating layer having high surface smoothness without being limited by the physical properties of a coating solution, by specifying the cross-sectional area of a coating solution distribution chamber, which continues so as to surround the outer peripheral of a base material to be coated, in the vertical direction thereof. CONSTITUTION:The coating solution 4 for an electrophotographic photosensitive body supplied from the pipe 1 of a coating solution supply means is once accumulated in a coating solution distribution chamber 2 and separated into the coating solution distributing slits 3 connected to said chamber 2 to be applied to the outer peripheral surface of a cylindrical body 5 vertically moving to the upward direction so as to hold a minute gap from the outflow ports of said slits 3. Herein, the vertical cross-sectional area of the coating solution distribution chamber 2 is set so as to be max. at the connecting position of a coating solution supply pipe 1 and decrease gradually as separated from said connecting position. By this specific cross-sectional area, the coating solution can be supplied to the surface of the cylindrical body 5 uniformly and stably without generating a difference in the amount of liquid flow.