摘要:
A photoreceptor includes an electroconductive substrate, and a laminate structure formed of at least a charge generating layer and a charge transport layer and provided overlying the electroconductive substrate, wherein the charge transport layer contains a charge transport material, a compound represented by the following formula 1 and a compound represented by the following formula 2: in the formula 1, R1 and R2 each independently represent substituted or non-substituted alkyl groups or aromatic hydrocarbon groups and one of R1 and R2 represents a substituted or non-substituted aromatic hydrocarbon group, R1 and R2 bonded to the same nitrogen atom may be bonded together to form a substituted or non-substituted nitrogen-containing heterocyclic group, and Ar represents a substituted or non-substituted hydrocarbon group; in the formula 2, R3 and R4 each independently represent substituted or non-substituted alkyl groups or aromatic hydrocarbon groups.
摘要:
An image forming apparatus, including a photoreceptor; a charger; an irradiator; an image developer; a transferer; a fixer; and a cleaning blade formed of a strip-shaped elastic blade, removing a powder from the surface of the photoreceptor passing an edge line of the blade while contacting thereto, wherein the photoreceptor includes a crosslinked resin surface layer formed of at least one of an acrylic resin and a methacrylic resin, and the cleaning blade includes a contact point with the photoreceptor, including a substrate; a mixed layer formed of at least one of an acrylic resin and a methacrylic resin, located at the surface of the substrate; and a surface layer formed of at least one of an acrylic resin and a methacrylic resin, located on the surface of the substrate.
摘要:
In a photoreceptor including an electroconductive substrate; a photosensitive layer; and a protective layer, the protective layer includes a crosslinked resin having a residual group of a polycarboxylic acid compound and a group having the below-mentioned formula (10), and at least one of a compound having the below-mentioned formula (2) and a compound having the below-mentioned formula (3). wherein each of R5 and R6 independently represents a hydrogen atom, or a substituted or unsubstituted alkyl group having 1 to 3 carbon atoms. wherein each of R7 and R8 independently represents a hydrogen atom, or an alkyl group having 1 to 4 carbon atoms, and Z1 represents a vinylene group, a divalent aromatic hydrocarbon group having 6 to 14 carbon atoms, or a 2,5-thiophenediyl group. wherein each of Ar1 and Ar2 independently represents an aromatic group having 6 to 14 carbon atoms, Z2 represents a divalent aromatic hydrocarbon group having 6 to 14 carbon atoms, and each of R9 and R10 independently represents a hydrogen atom, or a methyl group.
摘要:
In a photoreceptor including an electroconductive substrate; a photosensitive layer; and a protective layer, the protective layer includes a crosslinked resin having a residual group of a polycarboxylic acid compound and a group having the below-mentioned formula (10), and at least one of a compound having the below-mentioned formula (2) and a compound having the below-mentioned formula (3). wherein each of R5 and R6 independently represents a hydrogen atom, or a substituted or unsubstituted alkyl group having 1 to 3 carbon atoms. wherein each of R7 and R8 independently represents a hydrogen atom, or an alkyl group having 1 to 4 carbon atoms, and Z1 represents a vinylene group, a divalent aromatic hydrocarbon group having 6 to 14 carbon atoms, or a 2,5-thiophenediyl group. wherein each of Ar1 and Ar2 independently represents an aromatic group having 6 to 14 carbon atoms, Z2 represents a divalent aromatic hydrocarbon group having 6 to 14 carbon atoms, and each of R9 and R10 independently represents a hydrogen atom, or a methyl group.
摘要:
An electrophotographic photoreceptor including an electroconductive substrate; a charge generation layer located overlying the electroconductive substrate; a charge transport layer located overlying the charge generation layer; and an outermost layer located overlying the charge transport layer. The charge transport layer includes a positive hole transport material having the following formula (1): wherein each of R1 to R26 independently represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkoxyl group having 1 to 4 carbon atoms, and a compound having the following formula (2): wherein each of R27 and R28 independently represents a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group.
摘要:
A lubricant for use in an image forming apparatus, which contains a lubricant material and at least one of diamine compounds represented by chemical structure 1, 2, and 3, where R1 and R2 independently represent an alkyl group optionally having a substitution group and an aromatic hydrocarbon group optionally having a substitution group, one of R1 and R2 is an aromatic hydrocarbon group optionally having a substitution group, R1 and R2 optionally share bond connectivity to form a heterocyclic ring containing a nitrogen atom, and Ar represents an aromatic hydrocarbon group optionally having a substitution group, where R3 and R4 independently represent an alkyl group having one to four carbon atoms optionally substituted by an aromatic hydrocarbon group, R3 and R4 optionally share bond connectivity to form a heterocyclic ring containing a nitrogen atom, Ar1 and Ar2 independently represent a substituted or a non-substituted aromatic ring group, l and m each, independently, represent an integer of from 0 to 3 except that both l and m are zero at the same time, and n represents 1 or 2.
摘要:
A photoconductor is provided. The photoconductor includes a support, an undercoat layer overlying the support, and a photosensitive layer overlying the undercoat layer. The undercoat layer includes a binder resin and a zinc oxide particle. The photosensitive layer includes a compound represented by the following formula (1): where each of R1 and R2 independently represents an alkyl group or an aromatic hydrocarbon group.
摘要:
An image forming apparatus includes an image bearing member having a photosensitive layer and a sub-surface layer having a charge transportability, overlying the photosensitive layer wherein the sub-surface layer is formed of a cured material formed of a radical polymerizable monomer having three or more functional groups with no charge transport structure and a radical polymerizable compound having a charge transport structure, wherein the arithmetical mean roughness WRa of about each of frequency components of HMH, HML, and HLH obtained by wavelet conversion of values measured by a surface texture and the contour form measuring device ranges from 0.0002 μm to 0.005 μm and WRa (LLH) is 0.05 μm or less, wherein the sub-surface layer contains at least one of a particular oxazole compound or a particular diamine compound.
摘要:
An image forming apparatus including a latent image bearing member, a charging device, a latent electrostatic image formation device, a development device, a transfer device, and a lubricant supplying device, the latent image bearing member satisfying (I), (II) and (III): |(A1−B1)−(A2−B2)|≦5.0 (I) B1≧1 (atomic %) (II) 1 (nm)≦X≦30 (nm) (III), where, by XPS analysis, A1 and B1 represent oxygen and silicon atom content ratio in a cross-linked surface layer, respectively, A2 represents oxygen atom content ratio in a surface dug through a cross-linked surface layer along a direction perpendicular to the latent image bearing member surface, to an electroconductive substrate at depth point X where B1 decreases to not greater than B1×0.5, and B2 represents the silicone atom content ratio in the surface at X.
摘要:
An image forming apparatus including a latent image bearing member, a charging device, a latent electrostatic image formation device, a development device, a transfer device, and a lubricant supplying device, the latent image bearing member satisfying (I), (II) and (III): |(A1−B1)−(A2−B2)|≦5.0 (I) B1≧1 (atomic %) (II) 1 (nm)≦X≦30 (nm) (III), where, by XPS analysis, A1 and B1 represent oxygen and silicon atom content ratio in a cross-linked surface layer, respectively, A2 represents oxygen atom content ratio in a surface dug through a cross-linked surface layer along a direction perpendicular to the latent image bearing member surface, to an electroconductive substrate at depth point X where B1 decreases to not greater than B1×0.5, and B2 represents the silicone atom content ratio in the surface at X.