摘要:
An electrophotographic photoreceptor comprising a conductive support and a photosensitive layer formed on the conductive support and containing at least a charge generation material and a charge transport material, wherein a surface layer of the photoreceptor contains a polycarbonate copolymer having structural units represented by the following general formulas (1) to (3):
摘要:
A method of dividing a circuit pattern for creating complementary stencil masks corresponding to complementary patterns, the method comprising a step of dividing a circuit pattern into a plurality of complementary patterns including a first complementary pattern comprising a pattern of a cantilevered beam member having a support portion width W1 and a length L1, and a second complementary pattern comprising a pattern of a both end-supported beam member having a support portion width W2 and a length L2. The dividing of the circuit pattern is performed in a manner that a aspect ratio A1 (L1/W1) of the pattern of the cantilevered beam member is confined to not more than 100, and that a aspect ratio A2 (L2/W2) of the pattern of the both end-supported beam member is confined to not more than 150.
摘要:
The object of the invention is to provide an electro-photographic photoreceptor which has high sensitivity to long wavelength light to form a less defective image and exhibits a sufficient electrical charging property at the first rotation of the receptor to rapidly form an image. The electro-photographic photoreceptor is constructed by laminating an intermediate layer, a charge generation layer and a charge transport layer in order on a conductive support. The intermediate layer contains an adhesive resin, a carboxylic acid salt of the following structural formula (I), and titanium oxide. The content of the carboxylic acid salt is in a range of 0.5-5 weight % and that of titanium oxide in 10-50 weight % for the total amount of the intermediate layer.(R(COO).sub.k).sub.m A.sub.n (I)wherein R is a straight, branched or cyclic, saturated or unsaturated, and mono- to tetra-valent hydrocarbon group; A is an alkali metal or alkaline earth metal; and k, m and n each represent an integer of 1-4.
摘要:
Provided is an electrophotographic photoconductor comprising an electroconductive support and a photosensitive layer including a charge generation layer and a charge transport layer formed on the charge generation layer, the photosensitive layer being formed on the electroconductive support either directly or via an intermediate layer, wherein the charge transport layer contains a polyester resin having a structural unit (1) and a structural unit (2): ##STR1## wherein h:i is from 3:7 to 7:3, (h+i) is an integer from 10 to 1000, and a is an integer from 1 to 10, and the weight of the polyester resin is from 10 to 30 wt % to the total weight of resins contained in said charge transport layer. The residual potential of the photoconductor does not increase even upon repeated use under high temperature and high humidity. When a polycarbonate resin is contained as a binding resin in the charge transport layer, the surface of the photoconductor can be made tough and hardly scratched.
摘要:
An electrophotographic photoconductor of the invention comprising: an conductive support; a light-sensitive layer formed on the conductive support and containing a charge generating material and a charge transport material; and a surface protective layer formed on the light-sensitive layer and made of a resin composition, wherein the resin composition constituting the surface protective layer contains an amine compound represented by the following formula (1): wherein R1 and R2 are, the same or different, each an alkyl group or an allyl group which may have a substituent or a heterocyclic residue to be formed through or not through a nitrogen atom or an oxygen atom together with the nitrogen atom to which R1 and R2 are bonded, R3 and R4 are, the same or different, each an alkyl group having a substituent and n denotes 1 or 2, provided that when n is 1, X is a hydrogen atom, a halogen atom, or an alkyl group, a hydroxyl group or a mercapto group which may have a substituent, or a ring optionally containing an oxygen atom and a nitrogen atom between carbon atoms and when n is 2, X is an oxygen atom or a sulfur atom.
摘要:
A method of manufacturing a microneedle including the steps of forming a plurality of first linear grooves on a substrate in parallel to one another along a first direction using grinding, and forming a plurality of second linear grooves on the substrate in parallel to one another in a second direction intersecting the first direction using grinding.
摘要:
An electrophotographic photoreceptor comprising: a conductive support, a photosensitive layer and an intermediate layer interposed between the conductive support and the photosensitive layer, wherein the intermediate layer contains metal oxide microparticles surface-treated with silicon dioxide anhydride and a binder resin; and the binder resin contains a polyamide resin containing a piperazine-based compound.
摘要:
An electrophotographic photoconductor containing at least a charge generation material and a charge transport material on a conductive support, the electrophotographic photoconductor comprising a diamine compound represented by the formula (1), and also a polyarylate resin having a structural unit represented by the following formula (I).
摘要:
The invention discloses a method of manufacturing a microneedle including the steps of forming an island etching mask having thickness distribution on a substrate, and processing the substrate into a needle by taking advantage of a difference in etching rates between the etching mask and the substrate. The invention enables to readily control a point angle and height of the manufactured needle.
摘要:
An object of the present invention is to provide an electrophotographic photoreceptor capable of recording management information for managing the electrophotographic photoreceptor in a noncontact manner, and improving management of the electrophotographic photoreceptor. An electrophotographic photoreceptor includes a conductive base, a photosensitive layer and a flange portion, wherein a noncontact information medium provided with an antenna part which communicates in a noncontact manner with a reader/writer of a main body of an electrophotographic image forming apparatus and a control part which stores management information for managing the electrophotographic photoreceptor and controls the antenna part so as to communicate with the reader/writer is disposed onto the conductive base.