Electrophotographic photoreceptor, process cartridge and image-forming apparatus including electrophotographic photoreceptor
The present disclosure provides an electrophotographic photoreceptor including, on a conductive base, at least a photoreceptive layer or alternatively at least the photoreceptive layer and a protective layer laminated on the photoreceptive layer, in which both or either one of the photoreceptive layer and the protective layer contains a perimidine compound represented by general formula (I): (wherein X represents hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms, and m represents an integer of 1 to 6).
1. An electrophotographic photoreceptor comprising, on a conductive base, at least a photoreceptive layer or, alternatively, at least the photoreceptive layer and a protective layer laminated on the photoreceptive layer, wherein
at least one of the photoreceptive layer and the protective layer contains a perimidine compound represented by a general formula (I):
wherein:
X represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms,
m represents an integer of 1 to 6, a total number of m being 6, a number of the alkyl or alkoxy groups that are potentially present is from 1 to 6, and the rest are the hydrogen atoms,
in a case that the photoreceptive layer contains the perimidine compound,
the photoreceptive layer is a laminated photoreceptive layer in which a charge generating layer containing a charge generating substance and a charge transporting layer containing a charge transporting substance are sequentially laminated from a side of the conductive base, and
the charge transporting layer contains the perimidine compound having a content from 0.18 to 0.70% by mass based on a total solid content of the charge transporting layer, and
in a case that the protective layer contains the perimidine compound, a content of the perimidine compound is 0.3 to 7% by mass based on a total solid content of the protective layer.
2. The electrophotographic photoreceptor according to claim 1 , wherein the X represents the hydrogen atom and the m represents 6 in the general formula (I) representing the perimidine compound.
3. The electrophotographic photoreceptor according to claim 1 , wherein the charge transporting layer has a film thickness of 18 to 42 μm.
4. The electrophotographic photoreceptor according to claim 1 , wherein the protective layer has a film thickness of 3 to 7 μm.
5. A process cartridge comprising at least one selected from the electrophotographic photoreceptor according to claim 1 , an electrifier for electrifying the electrophotographic photoreceptor, a developer for developing an electrostatic latent image formed by exposure to form a toner image, and a cleaner for removing a toner remaining on the electrophotographic photoreceptor.
6. An image-forming apparatus comprising at least the electrophotographic photoreceptor according to claim 1 , an electrifier for electrifying the electrophotographic photoreceptor, an exposer for exposing the electrified electrophotographic photoreceptor to form an electrostatic latent image, a developer for developing the electrostatic latent image formed by the exposure to form a toner image, a transferer for transferring the toner image formed by the development onto a recording medium, a fuser for fusing the transferred toner image onto the recording medium to form an image, a cleaner for removing and recovering a toner remaining on the electrophotographic photoreceptor, and a charge eliminator for eliminating surface charges remaining on the electrophotographic photoreceptor.
7. An electrophotographic photoreceptor comprising, on a conductive base, at least a photoreceptive layer or, alternatively, at least the photoreceptive layer and a protective layer laminated on the photoreceptive layer,
wherein the protective layer contains a perimidine compound represented by a general formula (I):
wherein:
X represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms,
m represents an integer of 1 to 6, a total number of m being 6, a number of the alkyl or alkoxy groups that are potentially present is from 1 to 6, and the rest are the hydrogen atoms, and
a content of the perimidine compound is 0.3 to 7% by mass based on a total solid content of the protective layer.