| 摘要 |
PROBLEM TO BE SOLVED: To form a smooth outer surface suppressing the generation of a local uneven part, in coating the surface of a base material with an excessive amt. of a coating soln. and scraping off the excessive coating soln. by the coating film contact part of a coating film surface forming member, by forming a coating film so that the film is made thick at the central part of the base material and made thin toward both sides of the base material. SOLUTION: A base material rotating mechanism horizontally rotating a cylindrical base material such as an electrophtographlc photosensitive member by a motor 5 is provided and, during the rotation of the base material 1, a coating soln. is supplied to the surface of the base material 1 through a coating soln. supply pipe 15 to form a continuous film. The excessive coating soln. is scraped off by the contact with a coating film surface forming member 18 to form a predetermined coating film. In this case, the coating soln. emitting amt. of a fixed displacement pump 17 is made constant and the moving speed of a moving member is made slow toward the central part of the base material to perform coating so that the wall thickness of the coating film is increased on the central part of the base material and made thin toward both sides of the base material. The degree of the protruding part of the outer surface of the coating film on the central part of the base material is usually set to 10-300μm, desirably, to 30-150μm.
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