Patent ID: 9372416
Filing Date: 2016-06-21
CPC Classification: C23C,G03G,H01J

Claim Text:
1. A method for manufacturing an electrophotographic photosensitive member using a plasma CVD method, comprising the steps of: (i) placing a cylindrical base member in a reactor which can be evacuated, the reactor having an electrode therein, so as to be spaced apart from the electrode; (ii) introducing a raw material gas for deposited film formation into the reactor; and (iii) applying an alternating voltage of a rectangular wave having a frequency of 3 kHz or more and 300 kHz or less between the electrode and the cylindrical base member so that a potential at the cylindrical base member with respect to a potential at the electrode becomes alternately positive and negative during one period of the rectangular wave, to decompose the raw material gas, and forming a deposited film on the cylindrical base member, wherein, when, the potential difference between the electrode and the cylindrical base member whose potential with respect to the electrode is the positive, is defined as a first potential difference, and the potential difference between the electrode and the cylindrical base member whose potential with respect to the electrode is the negative, is defined as a second potential difference, one of the first potential difference and the second potential difference is a value (V wherein, when the one period of the rectangular wave is defined as T, a period during which the absolute value of the potential difference between the electrode and the cylindrical base member is the value (V