US4618552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light receiving member for electrophotography having roughened intermediate layer
Assignee: Canon Inc
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Filing: 1985-02-12
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Granted: 1986-10-21
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Expires: 2005-02-12
Abstract
Abstract A light receiving member comprising an intermediate layer between a substrate of a metal of an alloy having a reflective surface and a photosensitive member, the reflective surface of said substrate forming a light-diffusing reflective surface, and the surface of said intermediate layer forming a rough surface. A light receiving member comprising a subbing layer having a light-diffusing reflective surface with an average surface roughness of half or more of the wavelength of the light source for image exposure provided between an electroconductive substrate and a photosensitive layer.
Inventors
- 👤 Shigemori Tanaka
- 👤 Fumio Sumino
- 👤 Hitoshi Toma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:32
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/10; G03G5/102; G03G5/14; G03G5/142; G03G5/144; Y; Y10; Y10S; Y10S430/00; Y10S430/146
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
58 words
A light receiving member comprising an intermediate layer between a substrate of a metal or an alloy having a reflective surface and a photosensitive layer, the reflective surface of said substrate forming a light-diffusing reflective surface, and the surface of said intermediate layer forming a rough surface having an average surface roughness of about 0.5 to 30 μm.
Claim 2
Dependent Claim
58 words
A light receiving member comprising an intermediate layer between a substrate of a metal or an alloy having a reflective surface and a photosensitive layer, the reflective surface of said substrate forming a light-diffusing reflective surface, and the surface of said intermediate layer forming a rough surface having an average surface roughness of about 0.5 to 30 μm.
Claim 3
Dependent Claim
15 words
A light receiving member according to claim 1, wherein said metal or alloy is aluminum.
Claim 4
Dependent Claim
34 words
A light receiving member according to claim 1, wherein the light-diffusing reflective surface of said substrate has an average surface roughness of λ/2 or more (λ: wavelength of the incident light during image exposure).
Claim 5
Dependent Claim
27 words
A light receiving member according to claim 1, wherein the light-diffusing reflective surface of said substrate has an average surface roughness of 0.5 μm to 30 μm.
Claim 6
Dependent Claim
27 words
A light receiving member according to claim 1, wherein the light-diffusing reflective surface of said substrate has an average surface roughness of 0.3 μm to 20 μm.
Claim 7
Dependent Claim
30 words
A light receiving member according to claim 1, wherein the rough surface of said intermediate layer is formed by electroconductive powder dispersed in a resin which forms said intermediate layer.
Claim 8
Dependent Claim
33 words
A light receiving member according to claim 1, wherein the rough surface of said intermediate layer has an average surface roughness of λ/2 or more (λ: wavelength of incident light during image exposure).
Claim 9
Dependent Claim
37 words
A light receiving member according to claim 1, wherein the rough surface of said intermediate layer has an average surface roughness value less than the average surface roughness value of the light-diffusing reflective surface of said substrate.
Claim 10
Dependent Claim
34 words
A light receiving member according to claim 1, wherein the average surface roughness of said intermediate layer is 70% or lower of the average surface roughness of the light-diffusing reflective surface of said substrate.
Claim 11
Dependent Claim
34 words
A light receiving member according to claim 1, wherein the average surface roughness of said intermediate layer is 10% to 40% of the average surface roughness of the light-diffusing reflective surface of said substrate.
Claim 12
Dependent Claim
68 words
An electrophotographic photosensitive member for electrophotographic device employing laser beam as the light source comprising an intermediate layer between a substrate of a metal or an alloy having a reflective surface and a photosensitive layer, the reflective surface of said substrate forming a light-diffusing reflective surface, and the surface of said intermediate layer forming a rough surface having an average surface roughness of about 0.5 to 30 μm.
Claim 13
Dependent Claim
68 words
An electrophotographic photosensitive member for electrophotographic device employing laser beam as the light source comprising an intermediate layer between a substrate of a metal or an alloy having a reflective surface and a photosensitive layer, the reflective surface of said substrate forming a light-diffusing reflective surface, and the surface of said intermediate layer forming a rough surface having an average surface roughness of about 0.5 to 30 μm.
Claim 14
Dependent Claim
15 words
An electrophotographic photosensitive member according to claim 11, wherein said metal or alloy is aluminum.
Claim 15
Dependent Claim
40 words
An electrophotographic photosensitive member according to claim 11, wherein the rough surface of said intermediate layer and the light-diffusing reflective surface of said substrate have the function of preventing generation of an interference fringe pattern which appears during image formation.
Claim 16
Dependent Claim
30 words
An electrophotographic photosensitive member according to claim 11, wherein the rough surface of said intermediate layer is formed by electroconductive powder dispersed in a resin which forms said intermediate layer.
Claim 17
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 11, wherein said photosensitive layer has a laminated structure comprising a charge generation layer and a charge transport layer.
Claim 18
Dependent Claim
20 words
An electrophotographic photosensitive member according to claim 15, wherein said charge transport layer is laminated on the charge generation layer.
Claim 19
Dependent Claim
27 words
An electrophotographic photosensitive member according to claim 11, wherein said intermediate layer has an electroconductive layer having formed a rough surface and a barrier layer formed thereon.
Claim 20
Dependent Claim
21 words
An electrophotographic photosensitive member according to claim 11, wherein said laser beam is a laser beam emitted from a semiconductor laser.
Claim 21
Dependent Claim
33 words
A light receiving layer comprising a subbing layer having a light-diffusing reflective surface with an average surface roughness of about 0.5 to 30 μm provided between an electroconductive substrate and a photosensitive layer.
Claim 22
Dependent Claim
33 words
A light receiving layer comprising a subbing layer having a light-diffusing reflective surface with an average surface roughness of about 0.5 to 30 μm provided between an electroconductive substrate and a photosensitive layer.
Claim 23
Dependent Claim
44 words
A light receiving member according to claim 19, wherein the electroconductive substrate having the subbing layer has optical characteristics which cause light-diffusing reflection at an intensity of 50% or more relative to the intensity of the light from the light source for image exposure.
Claim 24
Dependent Claim
44 words
A light receiving member according to claim 19, wherein the electroconductive substrate having the subbing layer has optical characteristics which cause light-diffusing reflection at an intensity of 65% or more relative to the intensity of the light from the light source for image exposure.
Claim 25
Dependent Claim
67 words
A light receiving member according to claim 19, which is formed by forming a coating separated in micro-phases by coating an electroconductive substrate with a mixture obtained by mixing solutions of two kinds of resins incompatible with each other, then removing one of said two kinds of resins by dissolution to form a rough surface with the remaining resin, followed by formation of a photosensitive layer thereon.
Claim 26
Dependent Claim
51 words
An electrophotographic photosensitive member for use in electrophotographic device provided with laser beam as the exposure light source, said electrophotographic photosensitive member comprising an electroconductive substrate, a photosensitive layer, and a subbing layer having an average surface roughness of about 0.5 to 30 μm between said electroconductive substrate and photosensitive layer.
Claim 27
Dependent Claim
51 words
An electrophotographic photosensitive member for use in electrophotographic device provided with laser beam as the exposure light source, said electrophotographic photosensitive member comprising an electroconductive substrate, a photosensitive layer, and a subbing layer having an average surface roughness of about 0.5 to 30 μm between said electroconductive substrate and photosensitive layer.
Claim 28
Dependent Claim
45 words
An electrophotographic photosensitive member according to claim 23, wherein the electroconductive substrate having the subbing layer has optical characteristics which cause light-diffusing reflection at an intensity of 50% or more relative to the intensity of the laser beam from the light source for image exposure.
Claim 29
Dependent Claim
45 words
An electrophotographic photosensitive member according to claim 23, wherein the electroconductive substrate having the subbing layer has optical characteristics which cause light-diffusing reflection at an intensity of 65% or more relative to the intensity of the laser beam from the light source for image exposure.
Claim 30
Dependent Claim
67 words
An electrophotographic photosensitive member according to claim 23, which is formed by forming a coating separated in micro-phases by coating an electroconductive substrate with a mixture obtained by mixing solutions of two kinds of resins incompatible with each other, then removing one of said two kinds of resins by dissolution to form a rough surface with the remaining resin, followed by formation of a photosensitive layer thereon.
Claim 31
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 23, wherein said photosensitive layer has a laminated structure of a charge generation layer and a charge transport layer.
References Cited (Backward Citations)
US3871881A
Cited
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| 3.5 Years (Year 4) | 1989-10-20 | 1990-04-21 | 1990-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-20 | 1994-04-21 | 1994-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-20 | 1998-04-21 | 1998-10-21 | $7700.00 | Window Closed / Lapsed |