Claims
- 1. An electrophotographic process comprising the steps of:
- (a) charging a light receiving member comprising a substrate and a light receiving layer disposed on said substrate; said light receiving layer comprising:
- (a) a 1 to 100 .mu.m thick first layer having photoconductivity formed directly on said substrate; and
- (b) a 0.003 to 30 .mu.m thick second layer having an insulating property in sequence from the side of the substrate, said second layer having a free surface;
- said first layer (i) consisting essentially of (i-1) an amorphous material containing silicon atoms, (i-2) 1 to 6.times.10.sup.5 atomic ppm of germanium atoms, (i-3) at least one kind of atom selected from the group consisting of hydrogen atoms and halogen atoms in a total amount of 0.01 to 40 atomic %, and (i-4) a conductivity controlling element selected from the group consisting of B, Al, Ga, In and Tl of Group III or a conductivity controlling element selected from the group consisting of P, As, Sb and Bi of Group V of the Periodic Table, wherein said germanium atoms being so distributed in the thickness direction that the concentration thereof is enhanced at the position adjacent to the substrate and the concentration thereof is reduced or made substantially zero at the position adjacent to the interface with said second layer (ii); wherein said second layer (ii) comprises a second amorphous material containing (ii-1) silicon atoms, (ii-2) 0.001 to 90 atomic % of carbon atoms, (ii-3) at least one kind of atom selected from the group consisting of oxygen atoms and nitrogen atoms, said at least one kind of atom being uniformly distributed in the direction of thickness of said second layer and (ii-4) 1.0 to 1.times.10.sup.4 atomic ppm of an atom selected from the group consisting of B, Al, Ga, In and Tl belonging to Group III or an atom selected from the group consisting of P, As, Sb and Bi belonging to Group V of the Periodic Table; and
- (b) irradiating said light receiving member with an electromagnetic wave carrying information thereby forming an electrostatic image.
- 2. The electrophotographic process according to claim 1, wherein the atoms of the conductivity controlling element in the first layer of the light receiving member are unevenly distributed in the thickness direction.
- 3. The electrophotographic process according to claim 1, wherein the atoms of the conductivity controlling element in the first layer of the light receiving member are uniformly distributed in the thickness direction.
Priority Claims (7)
Number |
Date |
Country |
Kind |
61-23691 |
Feb 1986 |
JPX |
|
61-27900 |
Feb 1986 |
JPX |
|
61-27901 |
Feb 1986 |
JPX |
|
61-27902 |
Feb 1986 |
JPX |
|
61-33923 |
Feb 1986 |
JPX |
|
61-33924 |
Feb 1986 |
JPX |
|
61-37357 |
Feb 1986 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 07/942,820 filed Sep. 10, 1992, now abandoned; which in turn, is a continuation of application Ser. No. 07/754,250, filed Aug. 26, 1991, now abandoned; which in turn is a continuation of application Ser. No. 07/580,327, filed Sep. 10, 1990, now abandoned; which in turn, is a division of application Ser. No. 459,288, now abandoned filed Dec. 29, 1989; which in turn, is a division of application Ser. No. 210,223, filed Jun. 23, 1988, now U.S. Pat. No. 4,911,998; which in turn is a division of application Ser. No. 011,505, filed Feb. 5, 1987, now U.S. Pat. No. 4,818,651.
US Referenced Citations (8)
Divisions (3)
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Number |
Date |
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Parent |
459288 |
Dec 1989 |
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Parent |
210223 |
Jun 1988 |
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Parent |
11505 |
Feb 1987 |
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Continuations (3)
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Number |
Date |
Country |
Parent |
942820 |
Sep 1992 |
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Parent |
754250 |
Aug 1991 |
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Parent |
580327 |
Sep 1990 |
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