摘要:
An image forming apparatus includes a photosensitive member, an exposure device includes a single-chip light emission element array formed by integrating a plurality of light emitting elements in a single chip which exposure device executes the exposure in the main scanning direction relative to the movement of the photosensitive member, by the light emission from the single-chip light emission element array, and a developing device provided around the photosensitive member.
摘要:
An electrophotographic photosensitive member and a process cartridge and an electrophotographic apparatus. The process cartridge and the electrophotographic apparatus both contain the electrophotographic photosensitive member. The electrophotographic photosensitive member constitutes a conductive substrate and a photosensitive layer on the substrate. The photosensitive layer contains an azo pigment of formula (1), formula (2), formula (3), formula (4) or formula (5), as shown below: ##STR1##
摘要:
An electrophotographic photosensitive member is constituted by disposing a photosensitive layer on an electroconductive support. The photosensitive layer is characterized by containing an arylamine compound having specific two fluorenyl groups. The photosensitive member is suitable for providing an electrophotographic apparatus showing excellent electrophotographic characteristics such as a high photosensitivity, a good potential stability in repetitive use, a decreased pause memory, and no crack in the photosensitive layer.
摘要:
An electrophotographic photosensitive member is constituted by disposing a photosensitive layer on an electroconductive support. The photosensitive layer is characterized by containing a specific polycarbonate having a side chain comprising a charge-transporting group formed by nitrogen atom and benzene ring. The charge-transporting group may preferably has a specific triphenylamine structure, hydrazone structure or biphenyldiamine structure. The photosensitive layer is suitable for providing an electrophotographic apparatus showing excellent electrophotographic characteristics such as a high photosensitivity, a good potential stability in repetitive use.
摘要:
An electrophotographic photosensitive member comprises a conductive support and a photosensitive layer provided thereon. The photosensitive layer contains a fluorene compound represented by the following Formula (I): ##STR1## wherein R.sub.1 and R.sub.2 each represent an alkyl group; R.sub.3 represents a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom; R.sub.4 and R.sub.5 each represent a hydrogen atom, an alkyl group, an aralkyl group or an aryl group.
摘要:
A photosensitive member for electrophotography, including an electroconductive substrate and a photosensitive layer disposed thereon, wherein the photosensitive layer comprises a substituted amino compound represented by the following general formula (I): ##STR1## wherein X denotes --O--, --S--, or ##STR2## R.sub.1 denotes a hydrogen atom, alkyl, alkoxyl or halogen atom; and R.sub.2, R.sub.3 and R.sub.4 respectively denote an alkyl, aralkyl, aryl or heterocyclic group.
摘要:
The present invention provides a novel diazafluorene compound for manufacturing a 4,5-diazafluorene derivative. The diazafluorene compound is represented by the general formula (1): wherein R1 and R2 each represent a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, and may be the same or different from each other; and X1 and X2 each represent a halogen atom, and may be the same or different from each other.
摘要翻译:本发明提供了一种用于制造4,5-二氮杂芴衍生物的新型二氮杂芴化合物。 二氮杂芴化合物由通式(1)表示:其中R 1和R 2各自表示氢原子,取代或未取代的烷基或取代或未取代的芳基,并且可以相同或不同。 X 1和X 2各自表示卤素原子,可以相同也可以不同。
摘要:
Provided a novel 1,8-naphthyridine compound represented by the following general formula [I]: wherein R1 to R6 each represent a hydrogen atom; an alkyl group, a halogen atom; a trifluoromethyl group; and a cyano group, and may be the same as or different from one another, and that at least two of R1 to R6 each represent an aralkyl group, an aryl group, a heterocyclic group, a condensed polycyclic aromatic group, a condensed polycyclic heterocyclic group and an aryloxy group which may be substituted; and a substituted amino group. The 1,8-naphthyridine is employed in an organic compound layer provided between a pair of electrodes in an organic light-emitting device.
摘要:
A silicon compound having a repeating unit represented by the following general formula (1): wherein R is a hydrogen atom, a straight or branched alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, Ar is a substituted or unsubstituted aryl group or an unsubstituted heterocyclic group, m is an integer of 2 or more, and n is an integer of 5,000 or less.
摘要:
An organic luminescence device having an anode and a cathode and at least one organic luminescence function layer disposed between the anode and the cathode. At least one organic luminescence function layer described above includes a layer of a fused polynuclear compound represented by the following formula (I): wherein R1, R2, R3 and R4 independently denote hydrogen atom, an alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted amino group or cyano group; and Ar1 and Ar2 independently denote a substituted or unsubstituted fused polynuclear aromatic group or a substituted or unsubstituted fused polynuclear heterocyclic group.