An electrophotographic photoreceptor comprising a conductive substrate having thereon a photosensitive layer comprising a binder resin having dispersed therein a phthalocyanine composition is disclosed, in which said binder resin is a curing fluorine resin, and said phthalocyanine composition comprises (A) an unsubstituted phthalocyanine compound and (B) a phthalocyanine derivative having a halogen atom(s) and/or electron attractive group(s) at the benzene nuclei, such that the ratio of the number of the halogen atom(s) and/or electron attractive group(s) to the total number of the phthalocyanine units in (A) and (B) is from 0.001 to 0.5. The photoreceptor has a low threshold value of photosensitive characteristics and exhibits high sensitivity in a digital behavior. Besides applicable to a digital recording system, the photoreceptor, when applied to a conventional PPC system, provides a sharp-edged high quality image.
本发明公开了一种电子照相感光器,该感光器由导电基板组成,导电基板上有感光层,感光层由粘结剂
树脂组成,粘结剂
树脂中分散有
酞菁组合物,其中所述粘结剂
树脂是固化
氟树脂、所述
酞菁组合物包括(A)未取代的
酞菁化合物和(B)在苯核上具有卤素原子和/或引电子基团的
酞菁衍
生物,使得(A)和(B)中卤素原子和/或引电子基团的数目与
酞菁单元总数之比为0.001 至 0.5。该感光元件的光敏特性阈值较低,在数字行为中表现出较高的灵敏度。除了适用于数字记录系统外,该感光元件还可用于传统的 PPC 系统,提供边缘清晰的高质量图像。