EP0066812A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Electrophotographic photosensitive member
Assignee: Toshiba Corp
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Filing: 1982-05-28
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Granted: —
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Expires: 2002-05-28
Abstract
Abstract An electrophotographic photosensitive member constituted by an electroconductive supporting substrate (21) and a photoconductive coating (22) provided on said substrate, said photoconductive coating comprising a layer composed primarily of a microcrystalline silicon. The coating may be a layered product of a microcrystalline silicon and a amorphous silicon. A surface protective layer (23) may also be provided.
Inventors
- 👤 Takeshi Matsuo
- 👤 Yukio Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 02:51
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08214; G03G5/08221
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
38 words
An electrophotographic photosensitive member, which comprises an electroconductive supporting substrate (21) and a photoconductive coating (22) provided on said supporting substrate (21), characterized in that said photoconductive coating (22) comprises a layer constituted primarily of a microcrystalline silicon.
Claim 2
Dependent Claim
38 words
An electrophotographic photosensitive member, which comprises an electroconductive supporting substrate (21) and a photoconductive coating (22) provided on said supporting substrate (21), characterized in that said photoconductive coating (22) comprises a layer constituted primarily of a microcrystalline silicon.
Claim 3
Dependent Claim
19 words
An electrophotographic photosensitive member according to claim 1, wherein the photoconductive coating (22) further comprises an amorphous silicon layer.
Claim 4
Dependent Claim
33 words
An electrophotographic photosensitive member according to claim 2, wherein the photoconductive coating (22) has a lower layer of a microcrystalline silicon and an upper layer of an amorphous silicon on said lower layer.
Claim 5
Dependent Claim
34 words
An electrophotographic photosensitive member according to claim 2, wherein the photoconductive coating (22) has a lower layer of an amorphous silicon layer an an upper layer of a microcrystalline silicon on said lower layer.
Claim 6
Dependent Claim
29 words
An electrophotographic photosensitive member . according to any one of claims 1 to 4, wherein the photoconductive coating (22) is doped with 5 to 30 atomic % of hydrogen.
Claim 7
Dependent Claim
29 words
An electrophotographic photosensitive member according to any one of claims 1 to 4, wherein at least one kind of oxygen, nitrogen and carbon is doped in the photoconductive layer.
Claim 8
Dependent Claim
30 words
An electrophotographic photosensitive member according to claim 6, wherein the doping amount of at least one of oxygen, nitrogen and carbon is 10 -4 to 10 -3 atomic % .
Claim 9
Dependent Claim
35 words
An electrophotographic photosensitive member according to any one of claims 1 to 4, wherein an element of the Group III A of the periodic table is doped as a dopant in the photoconductive coating (22).
Claim 10
Dependent Claim
32 words
An electrophotographic photosensitive member according to claim 8, wherein the doping amount of an element of the Group III A of the periodic table is 10 -6 to 10 -4 atomic %.
Claim 11
Dependent Claim
35 words
An electrophotographic photosensitive member according to any one of claims 1 to 4, wherein an element of the Group V A of the periodic table is doped as a dopant in the photoconductive coating (22).
Claim 12
Dependent Claim
33 words
An electrophotographic photosensitive member according to claim 10, wherein the doping amount of an element of the Group V A in the photoconductive coating (22) is 10 -5 to 10 -2 atomic %.
Claim 13
Dependent Claim
25 words
An electrophotographic photosensitive member according to any one of the preceding claims, wherein a surface protective layer (23) is provided on the photoconductive coating (22).
Claim 14
Dependent Claim
25 words
An electrophotographic photosensitive member according to anyone of claims 1 to 11, wherein a reflection prevention layer (23) is provided on the photoconductive coating (22).
References Cited (Backward Citations)
No citation records indexed.
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