JPH0477907B2 - - Google Patents
Info
- Publication number
- JPH0477907B2 JPH0477907B2 JP60028310A JP2831085A JPH0477907B2 JP H0477907 B2 JPH0477907 B2 JP H0477907B2 JP 60028310 A JP60028310 A JP 60028310A JP 2831085 A JP2831085 A JP 2831085A JP H0477907 B2 JPH0477907 B2 JP H0477907B2
- Authority
- JP
- Japan
- Prior art keywords
- group
- electrophotographic photoreceptor
- photoreceptor
- substituent
- pigments
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 108091008695 photoreceptors Proteins 0.000 claims description 49
- 239000000049 pigment Substances 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 11
- 230000005525 hole transport Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 6
- -1 phthalocyanine compound Chemical class 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 claims description 2
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 claims description 2
- WVIICGIFSIBFOG-UHFFFAOYSA-N pyrylium Chemical class C1=CC=[O+]C=C1 WVIICGIFSIBFOG-UHFFFAOYSA-N 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims 4
- 125000000217 alkyl group Chemical group 0.000 claims 2
- 125000006615 aromatic heterocyclic group Chemical group 0.000 claims 2
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 claims 2
- 125000003710 aryl alkyl group Chemical group 0.000 claims 2
- 125000003118 aryl group Chemical group 0.000 claims 2
- 125000005843 halogen group Chemical group 0.000 claims 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 2
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 12
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical class N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 11
- 239000000203 mixture Substances 0.000 description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 5
- 229920002799 BoPET Polymers 0.000 description 5
- 239000005041 Mylar⢠Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- 239000005018 casein Substances 0.000 description 4
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 4
- 235000021240 caseins Nutrition 0.000 description 4
- OXNIZHLAWKMVMX-UHFFFAOYSA-N picric acid Chemical compound OC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O OXNIZHLAWKMVMX-UHFFFAOYSA-N 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- KUBDPQJOLOUJRM-UHFFFAOYSA-N 2-(chloromethyl)oxirane;4-[2-(4-hydroxyphenyl)propan-2-yl]phenol Chemical compound ClCC1CO1.C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 KUBDPQJOLOUJRM-UHFFFAOYSA-N 0.000 description 2
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013034 phenoxy resin Substances 0.000 description 2
- 229920006287 phenoxy resin Polymers 0.000 description 2
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 2
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 2
- QGKMIGUHVLGJBR-UHFFFAOYSA-M (4z)-1-(3-methylbutyl)-4-[[1-(3-methylbutyl)quinolin-1-ium-4-yl]methylidene]quinoline;iodide Chemical compound [I-].C12=CC=CC=C2N(CCC(C)C)C=CC1=CC1=CC=[N+](CCC(C)C)C2=CC=CC=C12 QGKMIGUHVLGJBR-UHFFFAOYSA-M 0.000 description 1
- 229910000967 As alloy Inorganic materials 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- 229910001370 Se alloy Inorganic materials 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 229910001215 Te alloy Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000003387 indolinyl group Chemical class N1(CCC2=CC=CC=C12)* 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 230000004298 light response Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
- G03G5/0622—Heterocyclic compounds
- G03G5/0624—Heterocyclic compounds containing one hetero ring
- G03G5/0635—Heterocyclic compounds containing one hetero ring being six-membered
- G03G5/0637—Heterocyclic compounds containing one hetero ring being six-membered containing one hetero atom
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
- G03G5/0622—Heterocyclic compounds
- G03G5/0624—Heterocyclic compounds containing one hetero ring
- G03G5/0627—Heterocyclic compounds containing one hetero ring being five-membered
- G03G5/0629—Heterocyclic compounds containing one hetero ring being five-membered containing one hetero atom
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
- G03G5/0664—Dyes
Description
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[Industrial Field of Application] The present invention relates to an electrophotographic photoreceptor, and more particularly to an electrophotographic photoreceptor suitably used in a laser beam printer using a semiconductor laser. [Prior art] Phthalocyanine compounds exhibit photoconductivity.
Since its discovery in 1968, a great deal of research has been conducted on it as a photoelectric conversion material. In recent years, with the development of non-impact printing technology, research has been actively conducted to develop laser beam printers that use semiconductor lasers as writing heads. In a laser beam printer used in electrophotography, a uniformly corona-charged photoreceptor is first irradiated with a laser beam modulated based on an input signal, and an image is formed by a toner phenomenon. It is believed that such a laser recording method improves the image quality, and in particular, the use of a semiconductor laser provides advantages such as simplifying the device, making it more compact, and making it possible to reduce the cost. Currently, most of the oscillation wavelengths of semiconductor lasers that operate stably are in the near-infrared region (λ>780nm). In other words, the recording photoreceptor used for it is 780n.
It is necessary to have high sensitivity in the wavelength range of m to 850 nm. In this case, the half-reduced exposure amount E1/2 of monochromatic infrared light irradiation required for practical sensitivity is 1 ÎŒJ/cm 2 or less. Among photoconductive substances that exhibit high sensitivity in such long wavelength regions, phthalocyanine compounds are attracting particular attention. Conventionally, electrophotographic photoreceptors have been made of selenium, tellurium,
Inorganic compounds such as cadmium sulfide, zinc oxide,
Alternatively, organic compounds such as polyN-vinylcarbazole and bisazo pigments are used. However, these cannot be said to have sufficient photosensitivity in the long wavelength range of 780 nm to 900 nm, and in recent years, photoreceptors using an alloy of selenium, tellurium, and arsenic or photoreceptors using dye-sensitized cadmium sulfide have been developed.
It has been reported that they have high sensitivity in the long wavelength region around 800 nm, but all of them are highly toxic and their environmental safety is being reconsidered as a social issue. In addition, it is thought that it is possible to extend the photosensitive region of a photoreceptor using amorphous silicon to a long wavelength region by using a specific doping method and manufacturing method, but at present, the film formation rate is slow and there are problems with mass production, making it difficult to use. It's hard to say that it's a photoreceptor for the price. Among the phthalocyanine compounds that have been studied so far, x-type metal-free phthalocyanine compounds can be cited as compounds that are sensitive in the long wavelength region of 780 nm or more. However, a pigment-resin dispersion photoreceptor using an x-type metal-free phthalocyanine compound has relatively high sensitivity near 780 nm, but the sensitivity rapidly decreases in the long wavelength range of 800 nm or more, making it insufficient for practical use. . On the other hand, the characteristics of the pigment-resin dispersion photoreceptor are as follows:
At the initial stage of light irradiation, there is a phenomenon called the induction effect in which the light response is delayed, so the sensitivity tends to decrease significantly with light of a wavelength that is weakly absorbed. [Problems to be Solved by the Invention] An object of the present invention is to provide an electrophotographic photoreceptor that exhibits relatively high sensitivity within the wavelength range of 780 to 900 nm. Another object of the present invention is to solve the problems of high dark decay and high residual potential that occur when electrophotographic photoreceptors are prepared by dispersing phthalocyanine pigments in a charge transporting medium such as poly-N-vinylcarbazole. The purpose of the present invention is to provide an electrophotographic photoreceptor. [Means for Solving the Problems] The present invention provides an electrophotographic photoreceptor having a photosensitive layer in which an x-type metal-free phthalocyanine compound is dispersed in a binder. material,
Furthermore, the above object has been achieved by an electrophotographic photoreceptor characterized by containing an electron transporting substance. Examples of the resin used as a binder in the present invention include resins generally used as binders for electrophotographic photoreceptors. Suitable examples are listed in Table 1.
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·äœäŸã第ïŒè¡šã«ãŸãšããŠæ²ããã[Table] Suitable hole transport substances used in the present invention include, for example, quinoline compounds and derivatives thereof as shown in the general formula (), and indoline compounds and derivatives thereof as shown in the general formula ().
Specific examples are listed in Table 2.
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·äœäŸã第ïŒè¡šã«ç€ºãã[Table] Examples of the electron transport substance used in the present invention include disazo pigments, perylene pigments, anzatron pigments, thiapyrylium salt derivatives, pyrylium derivatives, cyanine dye derivatives, and the like. Specific examples are shown in Table 3.
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Example 1 Hole transport agent No.-13 10.0g "U Polymer" (manufactured by Unitika Co., Ltd.) 10.0g Dioxane 90.0g were completely dissolved, and then coated on an aluminum vapor-deposited mylar film and dried to form a 10 ÎŒm film. It was used as a charge transport layer. Next, x-type metal-free phthalocyanine 2.0g Disazo pigment No.P-13 0.5g Hole transport substance No.-13 10.0g Picric acid 0.02g "U polymer" (manufactured by Unitika Co., Ltd.) 10.0g Dioxane 90.0g A mixture of 60.0 g of glass beads (hard) was uniformly dispersed for 1.5 hours using a paint shaker, and then coated on the charge transport layer so that the film thickness of the photoreceptor was approximately 15 ÎŒm, dried, and a laminated type. A photoreceptor was created. "Paper Acalizer SP-428" (manufactured by Kawaguchi Electric Seisakusho Co., Ltd.) was used to measure the electrophotographic characteristics of the photoreceptor. The surface potential of the photoconductor immediately after each voltage of (+) 6kV and (-)6kV is applied to the surface of the photoconductor.
V 0 (V) and the surface potential V 10 (V) of the photoreceptor 10 seconds after stopping the voltage application were measured, and the charge retention ability of the photoreceptor was evaluated by the value of V 10 /V 0 . The sensitivity of the photoreceptor was measured by exposing the surface of the charged photoreceptor to light using a tungsten lamp as a white light source. The exposure amount required for the surface potential after exposure to decrease to 1/2 of the initial surface potential, assuming the exposure intensity is 5 lux.
E 1/2 (luxã»sec) and the amount of exposure E 1/5 required for the surface potential after exposure to decrease to 1/5 of the initial surface potential.
(lux·sec) and the surface potential V 15 (V) 15 seconds after the start of exposure were measured, and the sensitivity of the photoreceptor was evaluated based on these physical quantities. Comparative example 1 x-type metal-free phthalocyanine 2.0g Polyester "Vylon 200" (manufactured by Toyobo Co., Ltd.)
A mixture of 11.3 g of epichlorohydrin, 63.0 g of glass beads (hard), and 45.0 g of the mixture was uniformly dispersed in the same manner as in Example 1, and then spread onto an aluminum vapor-deposited mylar film provided with casein so that the film thickness was 15 ÎŒm. The coating was applied and dried to produce an electrophotographic photoreceptor. Comparative Example 2 Except for not adding disazo pigment P-13,
A photoreceptor having the same composition and structure as in Example 1 was produced. FIG. 7 shows the spectral sensitivities of the photoreceptors of Example 1 and Comparative Example 1. FIG. 8 shows optical attenuation characteristic curves of the photoreceptors of Example 1, Comparative Example 1, and Comparative Example 2. From FIG. 7, it can be seen that the photoreceptor of Example 1 shows no decrease in sensitivity in the long wavelength region of 800 nm or more. From FIG. 8, it can be seen that the residual potential is considerably reduced by adding the disazo pigment. Example 2 x-type metal-free phthalocyanine 2.0g Disazo pigment No.P-13 0.5g Hole transport agent No.-13 5.0g Picric acid 0.01g "U polymer" (manufactured by Unitika Co., Ltd.) 5.0g Dioxane 90.0g The mixture was uniformly dispersed in the same manner as in Example 1, and then coated on a casein-coated aluminum vapor-deposited Mylar film to a thickness of 3 ÎŒm and dried to form a charge generation layer. A solution of 5.0 g of hole transport agent No.-13 "U Polymer" (manufactured by Unitika Co., Ltd.) 5.0 g and 45.0 g of dioxane was applied on top of this to a film thickness of 12 ÎŒm and dried to form a charge transport layer. , a laminated photoreceptor was created. Example 3 A mixture of 2.0 g of x-type metal-free phthalocyanine, 0.5 g of disazo pigment No. P-13, 0.01 g of picric acid, 0.83 g of phenoxy resin "PKHH" (manufactured by Union Carbide), 30.0 g of chloroform, and 30.0 g of ethyl acetate was prepared in Example 1 above. After uniformly dispersing the mixture in the same manner as above, the mixture was coated and dried to a thickness of 0.5 ÎŒm on an aluminum vapor-deposited mylar film provided with casein to form a charge generation layer. On top of this, hole transport material No.-13 5.0g "U polymer" (Unitika
Co., Ltd.) and 45.0 g of dioxane was applied and dried to a film thickness of 12 ÎŒm to form a charge transport layer, and a laminated photoreceptor was prepared. Comparative Example 3 A mixture of 2.0 g of x-type metal-free phthalocyanine, 0.01 g of picric acid, 0.83 g of phenoxy resin "PKHH" (manufactured by Union Carbide), 30.0 g of chloroform, and 30.0 g of ethyl acetate was prepared in the same manner as in Example 1 above.
After uniformly dispersing the mixture, it was coated and dried to a thickness of 0.5 ÎŒm on an aluminum vapor-deposited mylar film provided with casein to form a charge generation layer. A charge transport layer similar to that in Example 3 was provided thereon to produce a laminated photoreceptor. The electrophotographic properties of the photoreceptors of Examples 2 and 3 and Comparative Example 3 are summarized in Table 4.
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ããã[Table] Furthermore, the spectral sensitivities of the photoreceptors of Examples 2 and 3 and Comparative Example 3 are shown in FIG. Examples 4 to 11 In the photoreceptor of Example 1, various combinations of hole transport materials and electron transport materials were used to create various photoreceptors. The characteristics of each are summarized in Table 5.
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The electrophotographic photoreceptor of the present invention has a photosensitive layer formed by dispersing an x-type metal-free phthalocyanine compound in a binder, and the photoreceptor contains a hole transporting substance and an electron transporting substance in the photosensitive layer. By this,
It has sufficient sensitivity in the long wavelength region of 780 to 900 nm, and also has a small residual potential. The electrophotographic photoreceptor of the present invention is not only excellent as a photoreceptor for laser beam printers that use a light source of about 750 to 900 nm, but also for various other recording devices that use a light source of 750 to 900 nm such as semiconductor lasers. It can also be applied to
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1 to 6 are enlarged partial cross-sectional views of an electrophotographic photoreceptor according to the present invention. 1... x-type metal-free phthalocyanine, 2... hole transport material, 3... electron transport material, 4... binder,
5... Charge-accepting substance, A... Conductive support, B
...Photosensitive layer, B-1...Charge transport layer, B-2...
Charge generation layer. FIG. 7 is a diagram showing the relative spectral sensitivities of the photoreceptor of Example 1 and the photoreceptor of Comparative Example 1. FIG. 8 shows the photoconductor of Example 1, the photoconductor of Comparative Example 1, and Comparative Example 2.
FIG. 3 is a diagram showing a light attenuation characteristic curve of a photoconductor. Figure 9
2 is a diagram showing the relative spectral sensitivities of the photoconductor of Example 2, the photoconductor of Example 3, and the photoconductor of Comparative Example 2. FIG.
Claims (1)
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ã®é»ååçæå äœã[Scope of Claims] 1. An electrophotographic photoreceptor having a photosensitive layer formed by dispersing an x-type metal-free phthalocyanine compound in a binder, the photosensitive layer containing a hole transporting substance and an electron transporting substance. An electrophotographic photoreceptor characterized by: 2 Hole transport material has general formula (In the formula, A 1 represents an aromatic hydrocarbon group or an aromatic heterocyclic group which may have a substituent, and R 1 , R 2
and R 3 each independently represent a hydrogen atom, a halogen atom, or an alkyl group, an aralkyl group, or an aryl group which may have a substituent. ) The electrophotographic photoreceptor according to claim 1. 3 The hole transport material has the general formula (In the formula, A 2 represents an aromatic hydrocarbon group or an aromatic heterocyclic group which may have a substituent, and R 4 and R 5
each independently represents a hydrogen atom, a halogen atom, or an alkyl group, an aralkyl group, or an aryl group which may have a substituent. ) The electrophotographic photoreceptor according to claim 1. 4. Claim 1, wherein the electron transport substance is one or more compounds selected from the group consisting of disazo pigments, perylene pigments, anzanthrone pigments, thiapyrylium salt derivatives, pyrylium salt derivatives, and cyanine dye derivatives. 2. The electrophotographic photoreceptor according to item 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2831085A JPS61188543A (en) | 1985-02-18 | 1985-02-18 | Electrophotographic sensitive body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2831085A JPS61188543A (en) | 1985-02-18 | 1985-02-18 | Electrophotographic sensitive body |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61188543A JPS61188543A (en) | 1986-08-22 |
JPH0477907B2 true JPH0477907B2 (en) | 1992-12-09 |
Family
ID=12245045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2831085A Granted JPS61188543A (en) | 1985-02-18 | 1985-02-18 | Electrophotographic sensitive body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61188543A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63149653A (en) * | 1986-12-15 | 1988-06-22 | Konica Corp | Photosensitive body |
JPS63148269A (en) * | 1986-12-12 | 1988-06-21 | Konica Corp | Photosensitive body |
JPH01172863A (en) * | 1987-12-26 | 1989-07-07 | Koichi Kinoshita | Sensitizing method for photosensitive body for digital light input |
JPH0659486A (en) * | 1992-07-29 | 1994-03-04 | Matsushita Electric Ind Co Ltd | Electrophotographic sensitive body |
US7045263B2 (en) * | 2002-11-27 | 2006-05-16 | Samsung Electronics Co. Ltd. | Photoreceptor for electrophotography having a salt of an electron transport compound |
JP7140101B2 (en) | 2017-03-01 | 2022-09-21 | äžè±ã±ãã«ã«æ ªåŒäŒç€Ÿ | Positive charging electrophotographic photoreceptor, electrophotographic cartridge and image forming apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58134642A (en) * | 1982-02-05 | 1983-08-10 | Konishiroku Photo Ind Co Ltd | Electrophotographic receptor |
JPS58166354A (en) * | 1982-03-27 | 1983-10-01 | Konishiroku Photo Ind Co Ltd | Electrophotographic receptor |
JPS5962861A (en) * | 1982-07-08 | 1984-04-10 | Dainippon Ink & Chem Inc | Electrophotographic receptor |
JPS6022823A (en) * | 1983-07-18 | 1985-02-05 | Matsushita Electric Ind Co Ltd | Switching pulse generating circuit |
-
1985
- 1985-02-18 JP JP2831085A patent/JPS61188543A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58134642A (en) * | 1982-02-05 | 1983-08-10 | Konishiroku Photo Ind Co Ltd | Electrophotographic receptor |
JPS58166354A (en) * | 1982-03-27 | 1983-10-01 | Konishiroku Photo Ind Co Ltd | Electrophotographic receptor |
JPS5962861A (en) * | 1982-07-08 | 1984-04-10 | Dainippon Ink & Chem Inc | Electrophotographic receptor |
JPS6022823A (en) * | 1983-07-18 | 1985-02-05 | Matsushita Electric Ind Co Ltd | Switching pulse generating circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS61188543A (en) | 1986-08-22 |
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LAPS | Cancellation because of no payment of annual fees |