Patent ID: 8168365

Claim:
A method for manufacturing an electrophotographic photosensitive member, which mounts a conductive substrate in a reaction vessel that can be evacuated, supplies a source gas into the reaction vessel and introduces a high-frequency power to form a deposited film on the conductive substrate, comprising in the following order: forming a photoconductive layer formed from an amorphous material containing silicon atoms on the conductive substrate; forming a first surface layer formed from an amorphous material containing silicon atoms and carbon atoms; and forming a second surface layer formed from an amorphous material containing silicon atoms and carbon atoms as a layer in a top surface side of the electrophotographic photosensitive member, wherein when flow rates of CH 4 and SiH 4 to be supplied into the reaction vessel in forming the first surface layer are defined as C 1 and S 1 and a high-frequency power to be introduced into the reaction vessel is defined as P 1 , and when flow rates of CH 4 and SiH 4 to be supplied into the reaction vessel in forming the second surface layer are defined as C 2 and S 2 and a high-frequency power to be introduced into the reaction vessel is defined as P 2 , the first surface layer and the second surface layer are formed while supplying the source gas into the reaction vessel so that C 2 /S 2 is 3 or more and 25 or less and C 1 /S 1 is C 2 /S 2 or more and 60 or less, and while adjusting the high-frequency power so that P 2 >P 1 can be satisfied, and so that both a ratio of the number of atoms of the carbon atoms with respect to the sum of the number of atoms of the silicon atoms and the carbon atoms contained in the first surface layer and the ratio of the number of atoms of the carbon atoms with respect to the sum of the number of atoms of the silicon atoms and the carbon atoms contained in the second surface layer can be 0.50 or more and 0.80 or less.