US4634648A
Expired / Lapsed
US
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Electrophotographic imaging members with amorphous carbon
Assignee: Xerox Corp
•
Filing: 1985-07-05
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Granted: 1987-01-06
•
Expires: 2005-07-05
Abstract
Abstract Disclosed is a photoresponsive imaging member comprised of amorphous carbon.
Inventors
- 👤 Frank Jansen
- 👤 Joseph Mort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:05
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08285
Claims Analysis
Total Claims: 63
Claim 1
Independent Claim
38 words
A photoresponsive imaging member comprised of hydrogenated amorphous carbon, or halogenated amorphous carbon wherein there is present from about 5 to about 70 atomic percent of hydrogen, or from about 5 to about 70 atomic percent of halogen.
Claim 2
Dependent Claim
38 words
A photoresponsive imaging member comprised of hydrogenated amorphous carbon, or halogenated amorphous carbon wherein there is present from about 5 to about 70 atomic percent of hydrogen, or from about 5 to about 70 atomic percent of halogen.
Claim 3
Dependent Claim
22 words
A photoresponsive imaging member comprised of hydrogenated amorphous carbon with a band gap of from about 0.5 to about 5 electron volts.
Claim 4
Dependent Claim
22 words
A photoresponsive imaging member comprised of hydrogenated amorphous carbon with a band gap of from about 0.5 to about 5 electron volts.
Claim 5
Dependent Claim
22 words
A photoresponsive imaging member comprised of halogenated amorphous carbon with a band gap of from about 0.5 to about 5 electron volts.
Claim 6
Dependent Claim
22 words
A photoresponsive imaging member comprised of halogenated amorphous carbon with a band gap of from about 0.5 to about 5 electron volts.
Claim 7
Dependent Claim
16 words
A photoresponsive imaging member comprised of a mixture of amorphous hydrogenated carbon and amorphous halogenated carbon.
Claim 8
Dependent Claim
16 words
A photoresponsive imaging member comprised of a mixture of amorphous hydrogenated carbon and amorphous halogenated carbon.
Claim 9
Dependent Claim
20 words
A photoresponsive imaging member comprised of a supporting substrate, and in contact therewith photoconductive amorphous hydrogenated or photoconductive halogenated carbon.
Claim 10
Dependent Claim
20 words
A photoresponsive imaging member comprised of a supporting substrate, and in contact therewith photoconductive amorphous hydrogenated or photoconductive halogenated carbon.
Claim 11
Dependent Claim
31 words
A photoresponsive imaging member comprised of a supporting substrate and in contact therewith hydrogenated and/or halogenated armophous carbon with a band gap of from about 0.5 to about 5 electrn volts.
Claim 12
Dependent Claim
31 words
A photoresponsive imaging member comprised of a supporting substrate and in contact therewith hydrogenated and/or halogenated armophous carbon with a band gap of from about 0.5 to about 5 electrn volts.
Claim 13
Dependent Claim
26 words
A photorespective imaging member in accordance with claim 6 wherein the amorphous carbon has a band gap of from about 1 to about 3 electron volts.
Claim 14
Dependent Claim
15 words
A photoresponsive imaging member in accordance with claim 6 wherein the supporting substrate is aluminum.
Claim 15
Dependent Claim
40 words
A photoresponsive imaging member in accordance with claim 6 wherein the amorphous carbon has a ratio of 80 percent by weight of single bonds linking the carbon atoms, and 20 percent by weight of double bonds linking the carbon atoms.
Claim 16
Dependent Claim
29 words
A photoresponsive imaging member comprised of a supporting substrate, amorphous carbon selected from the group consisting of hydrogenated amorphous carbon and halogenated amorphous carbon, and a protective overcoating layer.
Claim 17
Dependent Claim
29 words
A photoresponsive imaging member comprised of a supporting substrate, amorphous carbon selected from the group consisting of hydrogenated amorphous carbon and halogenated amorphous carbon, and a protective overcoating layer.
Claim 18
Dependent Claim
26 words
A photoresponsive imaging member in accordance with claim 10 wherein the amorphous carbon is of a band gap of from 0.5 to about 5 electron volts.
Claim 19
Dependent Claim
18 words
A photoresponsive imaging member in accordance with claim 11 wherein the overcoating layer is comprised of amorphous carbon.
Claim 20
Dependent Claim
18 words
A photoresponsive imaging member in accordance with claim 10 wherein the overcoating is silicon nitride or silicon carbide.
Claim 21
Dependent Claim
59 words
An imaging member comprised of a supporting substrate, amorphous carbon, and an overcoating layer wherein the amorphous carbon is present in a transitional gradient with from about 0 atomic percent to about 80 atomic percent of hydrogen present in a direction from the supporting substrate to the interface situated between the amorphous carbon photoconductive layer and the overcoating layer.
Claim 22
Dependent Claim
59 words
An imaging member comprised of a supporting substrate, amorphous carbon, and an overcoating layer wherein the amorphous carbon is present in a transitional gradient with from about 0 atomic percent to about 80 atomic percent of hydrogen present in a direction from the supporting substrate to the interface situated between the amorphous carbon photoconductive layer and the overcoating layer.
Claim 23
Dependent Claim
25 words
An imaging member in accordance with claim 14 wherein the amorphous carbon is of a band gap of from 0.5 to about 5 electron volts.
Claim 24
Dependent Claim
21 words
An imaging member in accordance with claim 14 wherein the overcoating is comprised of silicon nitride, silicon carbide, or amorphous carbon.
Claim 25
Dependent Claim
35 words
An imaging member comprised of a transport layer of hydrogenated amorphous carbon with a band gap of from 0.5 to about 5 electron volts, and in contact therewith a photogenerating layer of hydrogenated amorphous silicon.
Claim 26
Dependent Claim
35 words
An imaging member comprised of a transport layer of hydrogenated amorphous carbon with a band gap of from 0.5 to about 5 electron volts, and in contact therewith a photogenerating layer of hydrogenated amorphous silicon.
Claim 27
Dependent Claim
17 words
An imaging member in accordance with claim 17 wherein there is further included therein a supporting substrate.
Claim 28
Dependent Claim
21 words
An imaging member in accordance with claim 17 wherein the hydrogenated amorphous carbon has a band gap of 2 electron volts.
Claim 29
Dependent Claim
22 words
An imaging member in accordance with claim 17 wherein the photogenerating layer is comprised of an amorphous hydrogenated silicon and germanium alloy.
Claim 30
Dependent Claim
18 words
An imaging member in accordance with claim 17 wherein the photogenerating layer is doped with phosphorus or boron.
Claim 31
Dependent Claim
26 words
An imaging member in accordance with claim 17 wherein the amorphous silicon photogenerating layer is situated between a supporting substrate and the hydrogenated amorphous carbon layer.
Claim 32
Dependent Claim
34 words
An imaging member in accordance with claim 17 wherein the amorphous carbon layer is situated between the amorphous silicon photogenerating layer and a supporting substrate, and the member further includes thereover an overcoating layer.
Claim 33
Dependent Claim
32 words
A method of imaging which comprises generating a latent electrostatic image on the photoresponsive imaging member of claim 1; subsequently developing this image; and transferring the developed image to a suitable substrate.
Claim 34
Dependent Claim
58 words
A method of imaging in accordance with claim 24 wherein the photoresponsive imaging member is comprised of hydrogenated amorphous carbon or halogenated amorphous carbon, and wherein the hydrogen is present in an amount of from about 5 to about 70 atomic percent, and the halogen is present in an amount of about 5 to about 70 atomic percent.
Claim 35
Dependent Claim
35 words
A method of imaging in accordance with claim 24 wherein the photoresponsive imaging member is comprised of hydrogenated or halogenated amorphous carbon with a band gap of from about 0.5 to about 5 electron volts.
Claim 36
Dependent Claim
33 words
A method of imaging in accordance with claim 24 wherein the photoresponsive imaging member is comprised of fluorinated amorphous carbon with a band gap of from about 0.5 to about 5 electron volts.
Claim 37
Dependent Claim
27 words
A method of imaging in accordance with claim 24 wherein the photoresponsive imaging member is comprised of a mixture of amorphous hydrogenated carbon and amorphous halogenated carbon.
Claim 38
Dependent Claim
28 words
A method of imaging in accordance with claim 24 wherein the photoresponsive imaging member is comprised of a supporting substrate, and in contact therewith photoconductive amorphous hydrogenated carbon.
Claim 39
Dependent Claim
41 words
A method of imaging in accordance with claim 24 wherein the imaging member is comprised of a supporting substrate, and in contact therewith hydrogenated and/or fluorinated amorphous carbon with a band gap of from about 1 to about 3 electron volts.
Claim 40
Dependent Claim
24 words
A method of imaging in accordance with claim 24 wherein there is further included in the imaging member a photogenerating layer of amorphous silicon.
Claim 41
Dependent Claim
15 words
A method of imaging in accordance with claim 24 wherein the supporting substrate is aluminum.
Claim 42
Dependent Claim
67 words
A photoresponsive imaging member consisting essentially of a supporting substrate, and in contact therewith a photogenerating layer selected from the group consisting of hydrogenated amorphous carbon, halogenated amorphous carbon, and mixtures thereof; and wherein the hydrogen is present in an amount of from about 5 to about 70 atomic percent, and the halogen is present in an amount of from about 5 to about 70 atomic percent.
Claim 43
Dependent Claim
67 words
A photoresponsive imaging member consisting essentially of a supporting substrate, and in contact therewith a photogenerating layer selected from the group consisting of hydrogenated amorphous carbon, halogenated amorphous carbon, and mixtures thereof; and wherein the hydrogen is present in an amount of from about 5 to about 70 atomic percent, and the halogen is present in an amount of from about 5 to about 70 atomic percent.
Claim 44
Dependent Claim
32 words
An imaging member comprised of a supporting substrate, a photogenerating layer, and a charge transport layer comprised of amorphous carbon with a band gap of from 0.5 to about 5 electron volts.
Claim 45
Dependent Claim
32 words
An imaging member comprised of a supporting substrate, a photogenerating layer, and a charge transport layer comprised of amorphous carbon with a band gap of from 0.5 to about 5 electron volts.
Claim 46
Dependent Claim
47 words
A photoresponsive imaging member comprised of a supporting substrate, a photogenerating layer, a charge transport layer in a thickness of from about 5 to about 25 microns of amorphous carbon with a band gap of from about 0.5 to about 5 electron volts, and an overcoating layer.
Claim 47
Dependent Claim
47 words
A photoresponsive imaging member comprised of a supporting substrate, a photogenerating layer, a charge transport layer in a thickness of from about 5 to about 25 microns of amorphous carbon with a band gap of from about 0.5 to about 5 electron volts, and an overcoating layer.
Claim 48
Dependent Claim
27 words
A photoresponsive imaging member in accordance with claim 35 wherein the overcoating layer is selected from the group consisting of silicon nitride, silicon carbide, and amorphous carbon.
Claim 49
Dependent Claim
17 words
A photoresponsive imaging member in accordance with claim 35 wherein the photogenerating layer is hydrogenated amorphous silicon.
Claim 50
Dependent Claim
27 words
A photoresponsive imaging member in accordance with claim 35 wherein hydrogen is present in an amount of from about 5 atomic percent to about 60 atomic percent.
Claim 51
Dependent Claim
27 words
A photoresponsive imaging member in accordance with claim 2 wherein hydrogen is present in an amount of from about 1 atomic percent to about 70 atomic percent.
Claim 52
Dependent Claim
27 words
A photoresponsive imaging member in accordance with claim 4 wherein hydrogen is present in an amount of from about 1 atomic percent to about 70 atomic percent.
Claim 53
Dependent Claim
27 words
A photoresponsive imaging member in accordance with claim 5 wherein hydrogen is present in an amount of from about 1 atomic percent to about 70 atomic percent.
Claim 54
Dependent Claim
27 words
A photoresponsive imaging member in accordance with claim 6 wherein hydrogen is present in an amount of from about 1 atomic percent to about 70 atomic percent.
Claim 55
Dependent Claim
24 words
A photoresponsive imaging member consisting essentially of a photogenerating layer therein selected from the group consisting of hydrogenated amorphous carbon and halogenated amorphous carbon.
Claim 56
Dependent Claim
24 words
A photoresponsive imaging member consisting essentially of a photogenerating layer therein selected from the group consisting of hydrogenated amorphous carbon and halogenated amorphous carbon.
Claim 57
Dependent Claim
26 words
A photoresponsive imaging member in accordance with claim 43 wherein the hydrogen is present in an amount of from about 5 to about 70 atomic percent.
Claim 58
Dependent Claim
26 words
A photoresponsive imaging member in accordance with claim 43 wherein the halogen is present in an amount of from about 5 to about 70 atomic percent.
Claim 59
Dependent Claim
30 words
A photoresponsive imaging member in accordance with claim 43 wherein the photogenerating hydrogenated or halogenated amorphous carbon has a band gap of from about 0.5 to about 5 electron volts.
Claim 60
Dependent Claim
27 words
A photoresponsive imaging member in accordance with claim 44 wherein hydrogen is present in an amount of from about 1 atomic percent to about 70 atomic percent.
Claim 61
Dependent Claim
32 words
A photoresponsive imaging member consisting essentially of a supporting substrate, a photoconductive layer selected from the group consisting of hydrogenated amorphous carbon, and halogenated amorphous carbon, and thereover a protective overcoating layer.
Claim 62
Dependent Claim
32 words
A photoresponsive imaging member consisting essentially of a supporting substrate, a photoconductive layer selected from the group consisting of hydrogenated amorphous carbon, and halogenated amorphous carbon, and thereover a protective overcoating layer.
Claim 63
Dependent Claim
43 words
A photoresponsive imaging member in accordance with claim 48 wherein the hydrogen is present in an amount of from about 5 to about 70 atomic percent, and the halogen is present in an amount of from about 5 to about 70 atomic percent.
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) | 1990-01-05 | 1990-07-07 | 1991-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-05 | 1994-07-07 | 1995-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-05 | 1998-07-07 | 1999-01-06 | $7700.00 | Window Closed / Lapsed |