Claims
- 1. An electrophotographic photoreceptor having a conductive support and a photoreceptive layer comprising a charge generation material and a charge transfer material, wherein the charge generation material is comprised of a mixed crystal containing a titanylphthalocyanine and a vanadylphthalocyanine, said mixed crystal having characteristic peaks at a Bragg angle (2.theta.) of 27.2.+-.0.2.degree. and 9.5.+-.0.2.degree., and in an X-ray diffraction spectrum with a Cu-K.alpha. ray (wave length: 1.541 .ANG.) and showing an exothermic peak between 150 and 400.degree. C. in a differential thermal analysis.
- 2. An electrophotographic photoreceptor according to claim 1, wherein a ratio in weight of the titanylphthalocyanine to a total weight of the titanylphthalocyanine and the vanadyl phtalocyanine is not less than 50%.
- 3. An electrophotographic photoreceptor according to claim 1, wherein a ratio in weight of the titanylphthalocyanine to a total weight of the titanylphthalocyanine and the vanadyl phtalocyanine is not less than 80%.
- 4. An electrophotographic photoreceptor according to claim 1, wherein a ratio in weight of the titanylphthalocyanine to a total weight of the titanylphthalocyanine and the vanadyl phtalocyanine is not less than 90%.
- 5. An electrophotographic photoreceptor according to claim 1, wherein the photoreceptive layer is composed of a charge generation substratum and a charge transfer substratum.
- 6. An electrophotographic photoreceptor according to claim 1, wherein the peak at a Bragg angle (2.theta.) of 27.2.+-.0.2.degree. is a maximum peak.
- 7. An electrophotographic photoreceptor according to claim 1, wherein said mixed crystal further has an infra-red absorption in the range of 950 to 1050 cm.sup.-1.
- 8. An electrophotographic photoreceptor having a conductive support and a photoreceptive layer comprising a charge generation material and a charge transfer material, wherein the charge generation material is comprised of a mixed crystal containing a titanylphthalocyanine and a vanadylphthalocyanine, said mixed crystal having characteristic peaks at a Bragg angle (2.theta.) of 27.2.+-.0.2.degree. and 9.1.+-.0.2.degree., and in an X-ray diffraction spectrum with a Cu-K.alpha. ray (wavelength: 1.541 .ANG.) and showing an exothermic peak between 150 and 400.degree. C. in a differential thermal analysis.
- 9. An electrophotographic photoreceptor according to claim 8, wherein the peak at a Bragg angle (2.theta.) of 27.2.+-.0.2.degree. is a maximum peak.
- 10. An electrophotographic photoreceptor according to claim 8, wherein said mixed crystal further has an infra-red absorption in the range of 950 to 1050 cm.sup.-1.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3-016581 |
Feb 1991 |
JPX |
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Parent Case Info
This application is a continuation, of application Ser. No. 07/831,568, filed Feb. 5, 1992, now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4981767 |
Tokura et al. |
Jan 1991 |
|
5153313 |
Kazmaier et al. |
Oct 1992 |
|
Foreign Referenced Citations (3)
Number |
Date |
Country |
0348889 |
Mar 1990 |
EPX |
2070763 |
Mar 1990 |
JPX |
1152655 |
May 1969 |
GBX |
Non-Patent Literature Citations (1)
Entry |
English Translation of JP 2-70763 to T. Iwabuchi et al. |
Continuations (1)
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Number |
Date |
Country |
Parent |
831568 |
Feb 1992 |
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