摘要:
An object of the invention is to provide an electrophotographic photoreceptor showing high responsivity even under a low temperature and low humidity circumstance and capable of compatibilize the decrease of the size and the increase in the image forming speed of an electrophotographic apparatus. In a photosensitive layer of an electrophotographic photoreceptor, oxotitanium phthalocyanine having a crystal form showing a diffraction peak at a Bragg angle 2θ (error: 2θ±0.2°) of 27.2° in an X-ray diffraction spectrum is contained as a charge generating substance, and an enamine compound represented by the general formula for example, the structural formula (1-1) is contained as a charge transporting substance. Accordingly, the electrophotographic photoreceptor showing high responsivity even under a low temperature and low humidity circumstance is realized.
摘要:
The invention is to provide an organic photoconductive material capable of realizing electrophotographic photoreceptors of high reliability that have high charge potential, high sensitivity, good responsiveness to light and good durability, of which the characteristics do not lower even when they are driven at low temperatures or at high speed and even when they are exposed to light, and to provide an electrophotographic photoreceptor that comprises the material and an image-forming apparatus. An organic photoconductive material of the following general formula (1), for example, an enamine compound of the following structural formula (1-1) is produced. Using the organic photoconductive material for the charge-transporting substance to be in a photosensitive layer on a conductive support, an electrophotographic photoreceptor is fabricated, and this is mounted on an image-forming apparatus
摘要:
An object of the invention is to provide a highly reliable electrophotographic photoreceptor having high sensitivity, excellent in light responsivity, not suffering from lowering of such characteristics even when it is used under a low temperature circumstance or in a high speed electrophotographic process, and with less fatigue degradation upon repetitive use. In a photosensitive layer of an electrophotoreceptor, an enamine compound represented by the following general formula (1), for example, the following structural formula is contained as a charge transporting substance, and further at least one of an antioxidant and a light stabilizer is contained. Accordingly, an electrophotographic photoreceptor excellent in sensitivity and light responsivity in various environments, and with less fatigue degradation upon repetitive use is realized.
摘要:
An object of the invention is to provide a highly reliable electrophotographic photoreceptor having high sensitivity, excellent in light responsivity, not suffering from lowering of such characteristics even when it is used under a low temperature circumstance or in a high speed electrophotographic process, and with less fatigue degradation upon repetitive use. In a photosensitive layer of an electrophotoreceptor, an enamine compound represented by the following general formula (1), for example, the following structural formula is contained as a charge transporting substance, and further at least one of an antioxidant and a light stabilizer is contained. Accordingly, an electrophotographic photoreceptor excellent in sensitivity and light responsivity in various environments, and with less fatigue degradation upon repetitive use is realized.
摘要:
An object of the invention is to provide an electrophotographic photoreceptor showing high responsivity even under a low temperature and low humidity circumstance and capable of compatibilize the decrease of the size and the increase in the image forming speed of an electrophotographic apparatus. In a photosensitive layer of an electrophotographic photoreceptor, oxotitanium phthalocyanine having a crystal form showing a diffraction peak at a Bragg angle 2θ(error: 2θ±0.2°) of 27.2° in an X-ray diffraction spectrum is contained as a charge generating substance, and an enamine compound represented by the general formula for example, the structural formula (1-1) is contained as a charge transporting substance. Accordingly, the electrophotographic photoreceptor showing high responsivity even under a low temperature and low humidity circumstance is realized.
摘要:
According to the present invention, an enamine compound having a specific structure is used as an organic photoconductive material. This enamine compound is obtained based on asymmetrical secondary naphtylamine which is readily available at a lowest price, by introducing phenyl groups containing substituents, as constituents units of the enamine part and presents excellent compatibility with binder resins, will not present detrimental effects such as partial crystallization at film forming and have a high charge mobility. The compound is able to realize highly reliable electrophotographic photoreceptor and an image forming apparatus which present a high electrostatic potential, high sensitivity and high enough light response and are excellent in durability and will not degrade in these characteristics under a low-temperature environment or in a high-speed process and will not lower in these characteristics even due to exposure to light.
摘要:
According to the present invention, an enamine compound having a specific structure is used as an organic photoconductive material. This enamine compound is obtained based on asymmetrical secondary naphtylamine which is readily available at a lowest price, by introducing phenyl groups containing substituents, as constituents units of the enamine part and presents excellent compatibility with binder resins, will not present detrimental effects such as partial crystallization at film forming and have a high charge mobility. The compound is able to realize highly reliable electrophotographic photoreceptor and an image forming apparatus which present a high electrostatic potential, high sensitivity and high enough light response and are excellent in durability and will not degrade in these characteristics under a low-temperature environment or in a high-speed process and will not lower in these characteristics even due to exposure to light.
摘要:
A coating liquid to be used for coating has a loss tangent tan δ of from 1 to 10 at a frequency of 6.28 radians/sec. A coating liquid supplying roll has a fine concave portion in at least a part of the circumferential length thereof, and in the vicinities of the both circumferential ends of the fine concave portion, the fine concave portion 8 has concave depth decreasing portions formed in such a manner that the depth of a fine concave decreases. The fine concave portion is constructed in such a manner that the sum L (=L1+L2) of a circumferential length L1 of a portion in which the fine concaves are formed in substantially the same depth and a circumferential length L2 of one concave depth decreasing portion becomes an integral multiple (1 or more) of a circumference Lc of the cylindrical substrate.
摘要翻译:用于涂布的涂布液的频率为6.28弧度/秒,损耗角正切tanδ为1至10。 涂布液供给辊在其周向长度的至少一部分上具有微细的凹部,在微细凹部的两个周向端附近,微细凹部8具有形成在该凹部的凹部深度减小部 使凹陷深度减小的方式。 细凹部的构造是这样一种方式构成,其中微细凹部形成在大致相同深度的部分的圆周长度L 1的总和L(= L 1 + L 2)和圆周长度L 2的周长L 2 一个凹入深度减小部分成为圆柱形基底的圆周Lc的整数倍(1或更多)。
摘要:
A coating liquid to be used for coating has a loss tangent tan δ of from 1 to 10 at a frequency of 6.28 radians/sec. A coating liquid supplying roll has a fine concave portion in at least a part of the circumferential length thereof, and in the vicinities of the both circumferential ends of the fine concave portion, the fine concave portion 8 has concave depth decreasing portions formed in such a manner that the depth of a fine concave decreases. The fine concave portion is constructed in such a manner that the sum L (=L1+L2) of a circumferential length L1 of a portion in which the fine concaves are formed in substantially the same depth and a circumferential length L2 of one concave depth decreasing portion becomes an integral multiple (1 or more) of a circumference Lc of the cylindrical substrate.
摘要翻译:用于涂布的涂布液的频率为6.28弧度/秒,损耗角正切tanδ为1至10。 涂布液供给辊在其周向长度的至少一部分上具有微细的凹部,在微细凹部的两个周向端附近,微细凹部8具有形成在该凹部的凹部深度减小部 使凹陷深度减小的方式。 细凹部的构造是这样一种方式构成,其中微细凹部形成在大致相同深度的部分的圆周长度L 1的总和L(= L 1 + L 2)和圆周长度L 2的周长L 2 一个凹入深度减小部分成为圆柱形基底的圆周Lc的整数倍(1或更多)。
摘要:
Described is a triazole derivative represented by the formula (1): wherein R1 represents a hydrogen atom, a lower alkyl group or an aralkyl group, X1 and X2 are the same or different and each independently represents a hydrogen atom, a halogen atom or a halogenoalkyl and n stands for an integer of 0 to 2, or salt thereof; a preparation process of said compound and a pharmaceutical comprising said compound as an effective ingredient. The compound as described above has high antimycotic activity and is useful for the prevention and treatment of mammalian mycotic infections.