US5853936A
Expired / Lapsed
US
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Light receiving member, substrate for said light receiving member, and electrophotographic apparatus having said light receiving member
Assignee: Canon Inc
•
Filing: 1997-03-10
•
Granted: 1998-12-29
•
Expires: 2017-03-10
Abstract
Abstract An electrophotographic light receiving member comprising a substrate in a cylindrical form and a light receiving layer formed on said substrate, wherein said substrate has (i) a portion with an enlarged bore at least on the side of an end portion of said substrate and (ii) a portion in a tapered form situated next to and outside said portion (i). An electrophotographic apparatus provided with said electrophotographic light receiving member.
Inventors
- 👤 Yoshio Segi
- 👤 Hiroyuki Katagiri
- 👤 Yasuyoshi Takai
- 👤 Hideaki Matsuoka
- 👤 Toshiyuki Ehara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:44
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/75; G03G15/751; G03G5/00; G03G5/10
Claims Analysis
Total Claims: 87
Claim 1
Independent Claim
60 words
An electrophotographic light receiving member comprising a substrate in a cylindrical form and a light receiving layer formed on said substrate, wherein said substrate has (i) a portion with an enlarged bore at least on the side of an end portion of said substrate and (ii) a portion in a tapered form situated next to and outside said portion (i).
Claim 2
Dependent Claim
60 words
An electrophotographic light receiving member comprising a substrate in a cylindrical form and a light receiving layer formed on said substrate, wherein said substrate has (i) a portion with an enlarged bore at least on the side of an end portion of said substrate and (ii) a portion in a tapered form situated next to and outside said portion (i).
Claim 3
Dependent Claim
46 words
An electrophotographic light receiving member according to claim 1, wherein the portion (i) has a thickness (c), the tapered portion (ii) has a minimum thickness (e), and the ratio of said minimum thickness (e) to said thickness (c) is in the range of 0.47 to 0.96.
Claim 4
Dependent Claim
29 words
An electrophotographic light receiving member according to claim 2, wherein the thickness (c) is a maximum thickness of a central portion of the portion (i) in the longitudinal direction.
Claim 5
Dependent Claim
48 words
An electrophotographic light receiving member according to claim 1, wherein the tapered portion (ii) has a length (f), the portion (i) has a length (d) in the longitudinal direction, and the ratio of said length (f) to said length (d) is in the range of 0.3 to 0.6.
Claim 6
Dependent Claim
48 words
An electrophotographic light receiving member according to claim 2, wherein the portion (i) has a length (d) in the longitudinal direction, the tapered portion (ii) has a length (f), and the ratio of said length (f) to said length (d) is in the range of 0.3 to 0.6.
Claim 7
Dependent Claim
48 words
An electrophotographic light receiving member according to claim 3, wherein the portion (i) has a length (d) in the longitudinal direction, the tapered portion (ii) has a length (f), and the ratio of said length (f) to said length (d) is in the range of 0.3 to 0.6.
Claim 8
Dependent Claim
46 words
An electrophotographic light receiving member according to claim 1, wherein the substrate has a central portion with a thickness (a), the portion (i) has a thickness (c), and the ratio of said thickness (c) to said thickness (a) is in the range of 0.5 to 0.8.
Claim 9
Dependent Claim
46 words
An electrophotographic light receiving member according to claim 4, wherein the substrate has a central portion with a thickness (a), the portion (i) has a thickness (c), and the ratio of said thickness (c) to said thickness (a) is in the range of 0.5 to 0.8.
Claim 10
Dependent Claim
46 words
An electrophotographic light receiving member according to claim 5, wherein the substrate has a central portion with a thickness (a), the portion (i) has a thickness (c), and the ratio of said thickness (c) to said thickness (a) is in the range of 0.5 to 0.8.
Claim 11
Dependent Claim
29 words
An electrophotographic light receiving member according to claim 7, wherein the thickness (c) is a maximum thickness of a central portion of the portion (i) in the longitudinal direction.
Claim 12
Dependent Claim
24 words
An electrophotographic light receiving member according to claim 1, wherein the substrate has a central portion with a thickness of 3 mm or less.
Claim 13
Dependent Claim
18 words
An electrophotographic light receiving member according to claim 7, wherein the thickness (a) is 3 mm or less.
Claim 14
Dependent Claim
18 words
An electrophotographic light receiving member according to claim 8, wherein the thickness (a) is 3 mm or less.
Claim 15
Dependent Claim
18 words
An electrophotographic light receiving member according to claim 9, wherein the thickness (a) is 3 mm or less.
Claim 16
Dependent Claim
24 words
An electrophotographic light receiving member according to claim 1, wherein the light receiving layer comprises an amorphous material containing silicon atoms as a matrix.
Claim 17
Dependent Claim
18 words
An electrophotographic light receiving member according to claim 1, wherein the substrate is constituted by a metallic material.
Claim 18
Dependent Claim
23 words
An electrophotographic light receiving member according to claim 1, wherein the substrate is constituted by an aluminum material or an aluminum alloy material.
Claim 19
Dependent Claim
25 words
An electrophotographic light receiving member according to claim 1, wherein the light receiving layer comprises a layer formed by a manner of heating the substrate.
Claim 20
Dependent Claim
109 words
An electrophotographic light receiving member comprising a substrate in a cylindrical form, a light receiving layer formed on said substrate, and a fixing member for sustaining said substrate which is equipped in mesh with said substrate on the side of at least an end portion of said substrate, wherein said substrate has (i) a portion whose bore is enlarged on the side of said end portion of said substrate and (ii) a tapered portion having a thickness which is gradually thinned than that of said portion (i) in a direction toward said end portion of said substrate, and said fixing member is provided in contact with said portion (i).
Claim 21
Dependent Claim
109 words
An electrophotographic light receiving member comprising a substrate in a cylindrical form, a light receiving layer formed on said substrate, and a fixing member for sustaining said substrate which is equipped in mesh with said substrate on the side of at least an end portion of said substrate, wherein said substrate has (i) a portion whose bore is enlarged on the side of said end portion of said substrate and (ii) a tapered portion having a thickness which is gradually thinned than that of said portion (i) in a direction toward said end portion of said substrate, and said fixing member is provided in contact with said portion (i).
Claim 22
Dependent Claim
25 words
An electrophotographic light receiving member according to claim 19, wherein the position of the fixing member is regulated in an end face of the substrate.
Claim 23
Dependent Claim
32 words
An electrophotographic light receiving member according to claim 19, wherein the position of the fixing member is regulated by means of a step in an enlarged bore region of the portion (i).
Claim 24
Dependent Claim
42 words
An electrophotographic light receiving member according to claim 19 which further comprises a fixing member for retaining the substrate which is provided at the remaining end portion of the substrate, wherein the two fixing members have the same or a different configuration.
Claim 25
Dependent Claim
46 words
An electrophotographic light receiving member according to claim 19, wherein the portion (i) has a thickness (c), the tapered portion (ii) has a minimum thickness (e), and the ratio of said minimum thickness (e) to said thickness (c) is in the range of 0.47 to 0.96.
Claim 26
Dependent Claim
29 words
An electrophotographic light receiving member according to claim 23, wherein the thickness (c) is a maximum thickness of a central portion of the portion (i) in the longitudinal direction.
Claim 27
Dependent Claim
48 words
An electrophotographic light receiving member according to claim 19, wherein the tapered portion (ii) has a length (f), the portion (i) has a length (d) in the longitudinal direction, and the ratio of said length (f) to said length (d) is in the range of 0.3 to 0.6.
Claim 28
Dependent Claim
48 words
An electrophotographic light receiving member according to claim 23, wherein the portion (i) has a length (d) in the longitudinal direction, the tapered portion (ii) has a length (f), and the ratio of said length (f) to said length (d) is in the range of 0.3 to 0.6.
Claim 29
Dependent Claim
48 words
An electrophotographic light receiving member according to claim 24, wherein the portion (i) has a length (d) in the longitudinal direction, the tapered portion (ii) has a length (f), and the ratio of said length (f) to said length (d) is in the range of 0.3 to 0.6.
Claim 30
Dependent Claim
46 words
An electrophotographic light receiving member according to claim 19, wherein the substrate has a central portion with a thickness (a), the portion (i) has a thickness (c), and the ratio of said thickness (c) to said thickness (a) is in the range of 0.5 to 0.8.
Claim 31
Dependent Claim
46 words
An electrophotographic light receiving member according to claim 25, wherein the substrate has a central portion with a thickness (a), the portion (i) has a thickness (c), and the ratio of said thickness (c) to said thickness (a) is in the range of 0.5 to 0.8.
Claim 32
Dependent Claim
46 words
An electrophotographic light receiving member according to claim 26, wherein the substrate has a central portion with a thickness (a), the portion (i) has a thickness (c), and the ratio of said thickness (c) to said thickness (a) is in the range of 0.5 to 0.8.
Claim 33
Dependent Claim
29 words
An electrophotographic light receiving member according to claim 28, wherein the thickness (c) is a maximum thickness of a central portion of the portion (i) in the longitudinal direction.
Claim 34
Dependent Claim
24 words
An electrophotographic light receiving member according to claim 19, wherein the substrate has a central portion with a thickness of 3 mm or less.
Claim 35
Dependent Claim
18 words
An electrophotographic light receiving member according to claim 28, wherein the thickness (a) is 3 mm or less.
Claim 36
Dependent Claim
18 words
An electrophotographic light receiving member according to claim 29, wherein the thickness (a) is 3 mm or less.
Claim 37
Dependent Claim
18 words
An electrophotographic light receiving member according to claim 30, wherein the thickness (a) is 3 mm or less.
Claim 38
Dependent Claim
24 words
An electrophotographic light receiving member according to claim 19, wherein the light receiving layer comprises an amorphous material containing silicon atoms as a matrix.
Claim 39
Dependent Claim
18 words
An electrophotographic light receiving member according to claim 19, wherein the substrate is constituted by a metallic material.
Claim 40
Dependent Claim
23 words
An electrophotographic light receiving member according to claim 19, wherein the substrate is constituted by an aluminum material or an aluminum alloy material.
Claim 41
Dependent Claim
25 words
An electrophotographic light receiving member according to claim 19, wherein the light receiving layer comprises a layer formed by a manner of heating the substrate.
Claim 42
Dependent Claim
74 words
An electrophotographic light receiving member according to claim 19, wherein the fixing member is configured such that it has at least a portion (X) capable of maintaining a fittingness precision with a face other than the tapered portion (ii), a portion (Y) having a face to be contacted with the end portion of the substrate and a non-contacting portion (Z) between said portions (X) and (Y) so as to satisfy the following equation Z<X<Y.
Claim 43
Dependent Claim
50 words
A substrate in a cylindrical form for an electrophotographic light receiving member, said substrate having (i) a portion with an enlarged bore at least on the side of an end portion of said substrate and (ii) a portion in a tapered form situated next to and outside said portion (i).
Claim 44
Dependent Claim
50 words
A substrate in a cylindrical form for an electrophotographic light receiving member, said substrate having (i) a portion with an enlarged bore at least on the side of an end portion of said substrate and (ii) a portion in a tapered form situated next to and outside said portion (i).
Claim 45
Dependent Claim
43 words
A substrate according to claim 41, wherein the portion (i) has a thickness (c), the tapered portion (ii) has a minimum thickness (e), and the ratio of said minimum thickness (e) to said thickness (c) is in the range of 0.47 to 0.96.
Claim 46
Dependent Claim
26 words
A substrate according to claim 42, wherein the thickness (c) is a maximum thickness of a central portion of the portion (i) in the longitudinal direction.
Claim 47
Dependent Claim
45 words
A substrate according to claim 41, wherein the tapered portion (ii) has a length (f), the portion (i) has a length (d) in the longitudinal direction, and the ratio of said length (f) to said length (d) is in the range of 0.3 to 0.6.
Claim 48
Dependent Claim
45 words
A substrate according to claim 42, wherein the portion (i) has a length (d) in the longitudinal direction, the tapered portion (ii) has a length (f), and the ratio of said length (f) to said length (d) is in the range of 0.3 to 0.6.
Claim 49
Dependent Claim
45 words
A substrate according to claim 43, wherein the portion (i) has a length (d) in the longitudinal direction, the tapered portion (ii) has a length (f), and the ratio of said length (f) to said length (d) is in the range of 0.3 to 0.6.
Claim 50
Dependent Claim
43 words
A substrate according to claim 41, wherein the substrate has a central portion with a thickness (a), the portion (i) has a thickness (c), and the ratio of said thickness (c) to said thickness (a) is in the range of 0.5 to 0.8.
Claim 51
Dependent Claim
43 words
A substrate according to claim 44, wherein the substrate has a central portion with a thickness (a), the portion (i) has a thickness (c), and the ratio of said thickness (c) to said thickness (a) is in the range of 0.5 to 0.8.
Claim 52
Dependent Claim
43 words
A substrate according to claim 45, wherein the substrate has a central portion with a thickness (a), the portion (i) has a thickness (c), and the ratio of said thickness (c) to said thickness (a) is in the range of 0.5 to 0.8.
Claim 53
Dependent Claim
26 words
A substrate according to claim 47, wherein the thickness (c) is a maximum thickness of a central portion of the portion (i) in the longitudinal direction.
Claim 54
Dependent Claim
21 words
A substrate according to claim 41, wherein the substrate has a central portion with a thickness of 3 mm or less.
Claim 55
Dependent Claim
15 words
A substrate according to claim 47, wherein the thickness (a) is 3 mm or less.
Claim 56
Dependent Claim
15 words
A substrate according to claim 48, wherein the thickness (a) is 3 mm or less.
Claim 57
Dependent Claim
15 words
A substrate according to claim 49, wherein the thickness (a) is 3 mm or less.
Claim 58
Dependent Claim
20 words
A substrate according to claim 41, wherein the substrate is constituted by an aluminum material or an aluminum alloy material.
Claim 59
Dependent Claim
172 words
An electrophotographic apparatus comprising: a light receiving member comprising a substrate in a cylindrical form and a light receiving layer formed on said substrate, and a fixing member equipped in mesh with said drum-like shaped substrate on the side of at least an end portion of said drum-like shaped substrate for sustaining said drum-like shaped substrate, said light receiving member being made capable of being rotated by means of said fixing member, at least a charging means, a developing means and a transferring means which are provided about said light receiving member, a transporting mechanism for a transfer sheet onto which a developer is transferred, and an exposure means, wherein said substrate has (i) a portion whose bore is enlarged on the side of at least an end portion of said substrate and (ii) a tapered portion having a thickness which is gradually thinned than that of said portion (i) in a direction toward said end portion of said substrate, and said fixing member is provided in contact with said portion (i).
Claim 60
Dependent Claim
172 words
An electrophotographic apparatus comprising: a light receiving member comprising a substrate in a cylindrical form and a light receiving layer formed on said substrate, and a fixing member equipped in mesh with said drum-like shaped substrate on the side of at least an end portion of said drum-like shaped substrate for sustaining said drum-like shaped substrate, said light receiving member being made capable of being rotated by means of said fixing member, at least a charging means, a developing means and a transferring means which are provided about said light receiving member, a transporting mechanism for a transfer sheet onto which a developer is transferred, and an exposure means, wherein said substrate has (i) a portion whose bore is enlarged on the side of at least an end portion of said substrate and (ii) a tapered portion having a thickness which is gradually thinned than that of said portion (i) in a direction toward said end portion of said substrate, and said fixing member is provided in contact with said portion (i).
Claim 61
Dependent Claim
23 words
An electrophotographic apparatus according to claim 56, wherein the position of the fixing member is regulated in an end face of the substrate.
Claim 62
Dependent Claim
29 words
An electrophotographic apparatus according to claim 56, wherein the position of the fixing member is regulated by means of a step in an enlarged region of the portion (i).
Claim 63
Dependent Claim
40 words
An electrophotographic apparatus according to claim 56 which further comprises a fixing member for retaining the substrate which is provided at the remaining end portion of the substrate, wherein the two fixing members have the same or a different configuration.
Claim 64
Dependent Claim
44 words
An electrophotographic apparatus according to claim 56, wherein the portion (i) has a thickness (c), the tapered portion (ii) has a minimum thickness (e), and the ratio of said minimum thickness (e) to said thickness (c) is in the range of 0.47 to 0.96.
Claim 65
Dependent Claim
27 words
An electrophotographic apparatus according to claim 60, wherein the thickness (c) is a maximum thickness of a central portion of the portion (i) in the longitudinal direction.
Claim 66
Dependent Claim
46 words
An electrophotographic apparatus according to claim 56, wherein the tapered portion (ii) has a length (f), the portion (i) has a length (d) in the longitudinal direction, and the ratio of said length (f) to said length (d) is in the range of 0.3 to 0.6.
Claim 67
Dependent Claim
46 words
An electrophotographic apparatus according to claim 60, wherein the portion (i) has a length (d) in the longitudinal direction, the tapered portion (ii) has a length (f), and the ratio of said length (f) to said length (d) is in the range of 0.3 to 0.6.
Claim 68
Dependent Claim
46 words
An electrophotographic apparatus according to claim 61, wherein the portion (i) has a length (d) in the longitudinal direction, the tapered portion (ii) has a length (f), and the ratio of said length (f) to said length (d) is in the range of 0.3 to 0.6.
Claim 69
Dependent Claim
44 words
An electrophotographic apparatus according to claim 56, wherein the substrate has a central portion with a thickness (a), the portion (i) has a thickness (c), and the ratio of said thickness (c) to said thickness (a) is in the range of 0.5 to 0.8.
Claim 70
Dependent Claim
44 words
An electrophotographic apparatus according to claim 63, wherein the substrate has a central portion with a thickness (a), the portion (i) has a thickness (c), and the ratio of said thickness (c) to said thickness (a) is in the range of 0.5 to 0.8.
Claim 71
Dependent Claim
44 words
An electrophotographic apparatus according to claim 63, wherein the substrate has a central portion with a thickness (a), the portion (i) has a thickness (c), and the ratio of said thickness (c) to said thickness (a) is in the range of 0.5 to 0.8.
Claim 72
Dependent Claim
27 words
An electrophotographic apparatus according to claim 65, wherein the thickness (c) is a maximum thickness of a central portion of the portion (i) in the longitudinal direction.
Claim 73
Dependent Claim
22 words
An electrophotographic apparatus according to claim 56, wherein the substrate has a central portion with a thickness of 3 mm or less.
Claim 74
Dependent Claim
16 words
An electrophotographic apparatus according to claim 65, wherein the thickness (a) is 3 mm or less.
Claim 75
Dependent Claim
16 words
An electrophotographic apparatus according to claim 66, wherein the thickness (a) is 3 mm or less.
Claim 76
Dependent Claim
16 words
An electrophotographic apparatus according to claim 67, wherein the thickness (a) is 3 mm or less.
Claim 77
Dependent Claim
22 words
An electrophotographic apparatus according to claim 56, wherein the light receiving layer comprises an amorphous material containing silicon atoms as a matrix.
Claim 78
Dependent Claim
16 words
An electrophotographic apparatus according to claim 56, wherein the substrate is constituted by a metallic material.
Claim 79
Dependent Claim
21 words
An electrophotographic apparatus according to claim 56, wherein the substrate is constituted by an aluminum material or an aluminum alloy material.
Claim 80
Dependent Claim
23 words
An electrophotographic apparatus according to claim 56, wherein the light receiving layer comprises a layer formed by a manner of heating the substrate.
Claim 81
Dependent Claim
22 words
An electrophotographic apparatus according to claim 56 which further comprises a fixing means for fixing the developer transferred on the transfer sheet.
Claim 82
Dependent Claim
19 words
An electrophotographic apparatus according to claim 56 which further comprises a cleaning means for cleaning the light receiving member.
Claim 83
Dependent Claim
72 words
An electrophotographic apparatus according to claim 56, wherein the fixing member is configured such that it has at least a portion (X) capable of maintaining a fittingness precision with a face other than the tapered portion (ii), a portion (Y) having a face to be contacted with the end portion of the substrate and a non-contacting portion (Z) between said portions (X) and (Y) so as to satisfy the following equation Z<X<Y.
Claim 84
Dependent Claim
60 words
An electrophotographic apparatus including a light receiving member comprising a substrate in a cylindrical form and a light receiving layer formed on said substrate, wherein said substrate has (i) a portion whose bore is enlarged on the side of said end portion of said substrate and (ii) a tapered portion which is situated next to and outside said portion (i).
Claim 85
Dependent Claim
60 words
An electrophotographic apparatus including a light receiving member comprising a substrate in a cylindrical form and a light receiving layer formed on said substrate, wherein said substrate has (i) a portion whose bore is enlarged on the side of said end portion of said substrate and (ii) a tapered portion which is situated next to and outside said portion (i).
Claim 86
Dependent Claim
22 words
An electrophotographic apparatus according to claim 80, wherein the light receiving layer comprises an amorphous material containing silicon atoms as a matrix.
Claim 87
Dependent Claim
16 words
An electrophotographic apparatus according to claim 80, wherein the substrate is constituted by a metallic material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-12-28 | 2002-06-29 | 2002-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-12-28 | 2006-06-29 | 2006-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-12-28 | 2010-06-29 | 2010-12-29 | $7700.00 | Window Closed / Lapsed |