EP0433172A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Electrophotographic photosensitive member
Assignee: Canon Inc
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Filing: 1990-12-12
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Granted: —
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Expires: 2010-12-12
Abstract
Abstract An electrophotographic photosensitive member has a conductive support and a photosensitive layer provided on the conductive support. The photosensitive layer contains an oxytitanium phthalocyanine having intense peaks at 9.0 DEG , 14.2 DEG , 23.9 DEG and 27.1 DEG in the Bragg angle (2 theta +/-0.2 DEG ) of CuK alpha characteristics X-ray diffraction or an oxytitanium phthalocyanine having intense peaks at 7.4 DEG , 9.2 DEG , 10.4 DEG , 11.6 DEG , 13.0 DEG , 14.3 DEG , 15.0 DEG , 15.5 DEG , 23.4 DEG , 24.1 DEG , 26.2 DEG and 27.2 DEG in the Bragg angle (2 theta +/-0.2 DEG ) of CuK alpha characteristics X-ray diffraction, and further contains a non-metallic phthalocyanine. <IMAGE>
Inventors
- 👤 Hiroyuki C/O Canon Kabushiki Kaisha Ohmori
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 04:40
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0001; C09B67/0014; C09B67/0016; C09B67/0025; C09B67/0026; C09B67/0033; C09B67/0034; C09B67/0035; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0664; G03G5/0696
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
81 words
An electrophotographic photosensitive member comprising a conductive support and a photosensitive layer provided on the conductive support, wherein said photosensitive layer contains an oxytitanium phthalocyanine having intense peaks at 9.0°, 14.2°, 23.9° and 27.1° in the Bragg angle (2ϑ±0.2°) of CuKα characteristics X-ray diffraction or an oxytitanium phthalocyanine having intense peaks at 7.4°, 9.2°, 10.4°, 11.6°, 13.0°, 14.3°, 15.0°, 15.5°, 23.4°, 24.1°, 26.2° and 27.2° in the Bragg angle (2ϑ±0.2°) of CuKα characteristics X-ray diffraction, and further contains a non-metallic phthalocyanine.
Claim 2
Dependent Claim
30 words
An electrophotographic photosensitive member according to Claim 1, wherein said non-metallic phthalocyanine is contained in an amount of from 0.1 to 30 % by weight based on said oxytitanium phthalocyanine.
Claim 3
Dependent Claim
22 words
An electrophotographic photosensitive member according to Claim 1, wherein said photosensitive layer has a charge generation layer and a charge transport layer.
Claim 4
Dependent Claim
20 words
An electrophotographic photosensitive member according to Claim 3, wherein said charge transport layer is laminated on said charge generation layer.
Claim 5
Dependent Claim
20 words
An electrophotographic photosensitive member according to Claim 3, wherein said charge generation layer is laminated on said charge transport layer.
Claim 6
Dependent Claim
16 words
An electrophotographic photosensitive member according to Claim 1, wherein said photosensitive layer comprises a single layer.
Claim 7
Dependent Claim
22 words
An electrophotographic photosensitive member according to Claim 1, wherein a subbing layer is provided between said conductive support and said photosensitive layer.
Claim 8
Dependent Claim
18 words
An electrophotographic photosensitive member according to Claim 1, wherein a protective layer is provided on said photosensitive layer.
Claim 9
Dependent Claim
116 words
An electrophotographic apparatus, comprising an electrophotographic photosensitive member, a means for forming an electrostatic latent image, a developing means for developing the electrostatic latent image formed, and a transfer means for transferring the developed image, said electrophotographic photosensitive member comprising a conductive support and a photosensitive layer provided on the conductive support; wherein said photosensitive layer contains an oxytitanium phthalocyanine having intense peaks at 9.0°, 14.2°, 23.9° and 27.1° in the Bragg angle (2ϑ±0.2°) of CuKα characteristics X-ray diffraction or an oxytitanium phthalocyanine having intense peaks at 7.4°, 9.2°, 10.4°, 11.6°, 13.0°, 14.3°, 15.0°, 15.5°, 23.4°, 24.1°, 26.2° and 27.2° in the Bragg angle (2ϑ±0.2°) of CuKα characteristics X-ray diffraction, and further contains a non-metallic phthalocyanine.
Claim 10
Dependent Claim
29 words
An electrophotographic apparatus according to Claim 9, wherein said non-metallic phthalocyanine is contained in an amount of from 0.1 to 30 % by weight based on said oxytitanium phthalocyanine.
Claim 11
Independent Claim
131 words
A device unit comprising an electrophotographic photosensitive member, a charging means and a cleaning means, said electrophotographic photosensitive member comprising a conductive support and a photosensitive layer provided on the conductive support; wherein, said photosensitive layer contains an oxytitanium phthalocyanine having intense peaks at 9.0°, 14.2°, 23.9° and 27.1° in the Bragg angle (2ϑ±0.2°) of CuKα characteristics X-ray diffraction or an oxytitanium phthalocyanine having intense peaks at 7.4°, 9.2°, 10.4°, 11.6°, 13.0°, 14.3°, 15.0°, 15.5°, 23.4°, 24.1°, 26.2° and 27.2° in the Bragg angle (2ϑ±0.2°) of CuKα characteristics X-ray diffraction, and further contains a non-metallic phthalocyanine, and said device unit holds the electrophotographic photosensitive member, charging means and cleaning means into one unit, and said device unit can be freely mounted on or detached from the body of an electrophotographic apparatus.
Claim 12
Dependent Claim
15 words
A device unit according to Claim 11, wherein said device unit has a developing means.
Claim 13
Dependent Claim
29 words
A device unit according to Claim 11, wherein said non-metallic phthalocyanine is contained in an amount of from 0.1 to 30 % by weight based on said oxytitanium phthalocyanine.
Claim 14
Dependent Claim
109 words
A facsimile machine comprising an electrophotographic apparatus and a receiver means for receiving image information from a remote terminal, said electrophotographic apparatus having an electrophotographic photosensitive member, and said electrophotographic photosensitive member comprising a conductive support and a photosensitive layer provided on the conductive support; wherein said photosensitive layer contains an oxytitanium phthalocyanine having intense peaks at 9.0°, 14.2°, 23.9° and 27.1° in the Bragg angle (2ϑ±0.2°) of CuKα characteristics X-ray diffraction or an oxytitanium phthalocyanine having intense peaks at 7.4°, 9.2°, 10.4°, 11.6°, 13.0°, 14.3°, 15.0°, 15.5°, 23.4°, 24.1°, 26.2° and 27.2° in the Bragg angle (2ϑ±0.2°) of CuKα characteristics X-ray diffraction, and further contains a non-metallic phthalocyanine.
Claim 15
Dependent Claim
29 words
A facsimile machine according to Claim 14, wherein said non-metallic phthalocyanine is contained in an amount of from 0.1 to 30 % by weight based on said oxytitanium phthalocyanine.
References Cited (Backward Citations)
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