摘要:
An image forming apparatus includes a photoconductor, a cleaning blade for cleaning the photoconductor, and a blade holder holding the cleaning blade and having a first bent portion for increasing its rigidity. In the apparatus, blade holder has at least one of a protrusion and a second bent portion.
摘要:
The purpose is to provide a mature protein having an antagonistic activity against bone morphogenetic proteins. The mature protein having an antagonistic activity against bone morphogenetic proteins is obtained by converting at least one residue among methionine residues or tryptophane residues existing in the amino acid sequence of mature human MP52 (SEQ ID No 1) to a hydrophilic residue by chemical modification, or replacing said residues with a hydrophilic amino acid residue or a polar amino acid residue. The chemical modification for said methionine residue is performed by an oxidization reaction or an alkylation reaction. The chemical modification for said tryptophane residue is performed by an allylsulphenylation reaction. Or a mature protein having an antagonistic activity against bone morphogenetic proteins is obtained by converting at least one residue of tryptophane residues existing in the amino acid sequences of mature human BMP-2 (SEQ ID No 2), mature human BMP-4 (SEQ ID No 3), and mature human BMP-7 (SEQ ID No 4) to a hydrophilic residue by chemical modification, or replacing said residues with a hydrophilic amino acid residue or a polar amino acid residue.
摘要翻译:目的是提供对骨形态发生蛋白具有拮抗作用的成熟蛋白质。 通过化学修饰将成熟人MP52(SEQ ID No.1)的氨基酸序列中存在的甲硫氨酸残基或色氨酸残基中的至少一个残基转化成亲水性残基,获得对骨形态发生蛋白具有拮抗作用的成熟蛋白质,或 用亲水氨基酸残基或极性氨基酸残基取代所述残基。 所述甲硫氨酸残基的化学修饰通过氧化反应或烷基化反应进行。 所述色氨酸残基的化学修饰通过烯丙基苯基化反应进行。 或者通过转化成熟人BMP-2(SEQ ID No 2),成熟人BMP-4(SEQ ID No.2)的氨基酸序列中存在的色氨酸残基的至少一个残基,获得对骨形态发生蛋白具有拮抗活性的成熟蛋白质 No.3)和成熟的人BMP-7(SEQ ID No 4)通过化学修饰与亲水性残基反应,或用亲水氨基酸残基或极性氨基酸残基替代所述残基。
摘要:
An image forming apparatus includes a photoconductor, a cleaning blade for cleaning the photoconductor, and a blade holder holding the cleaning blade and having a first bent portion for increasing its rigidity. In the apparatus, blade holder has at least one of a protrusion and a second bent portion.
摘要:
A thiol methacrylate or acrylate compound represented by the formula (1) or (2), ##STR1## wherein R.sup.1 is H or CH.sub.3 and X is selected from: ##STR2## wherein R.sup.1 is H or CH.sub.3 and m is an integer of 1 to 4. The thiol methacrylate or acrylate compound gives a resin having a high refractive index, a large Abbe number, and a good hardness and heat resistance, and giving little or no smell at processing.
摘要:
A thiol methacrylate or acrylate compound represented by the formula (1) or (2): ##STR1## wherein R.sup.1 is H or CH.sub.3 and X is selected from: ##STR2## wherein R.sup.1 is H or CH.sub.3 and m is an integer of 1 to 4. The thiol methacrylate or acrylate compound gives a resin having a high refractive index, a large Abbe number, and a good hardness and heat resistance, and giving little or no smell at processing.
摘要:
An electrophotographic copying apparatus is provided with a belt-shaped photoconductor comprising. A magnetic electroconductive support and a photoconductive layer are formed on the photoconduction. A magnetic cleaning member is positioned for cleaning the surface of the belt-shaped photoconductor.
摘要:
A safe static-resistant electric initiator is constructed by clamping the fitting portion of a cup having a bottom with a protruding part of a plug and the open part of a loaded shell corresponding to said plug. The electric initiator comprises an ignition device and a loaded shell having said ignition device at its open part, said ignition device comprising the cup having a bottom which is breakable by the ignition flame of an ignition composition, an ignition composition filled in said cup, the protruding part for supporting said cup and the plug provided with a bridge wire at the portions of the terminal bared parts of two leg wires which pass through the insides of the plug and said protruding part. Further, for obtaining a superior characteristic of static resistance, the material of said cup is selected, and the clamping ratio of said cup to the protruding part of the plug provided with a bridge wire and the ratio (l/a) of the fitting length (l) between said cup and said protruding part of the plug, to the outside diameter (a) of said cup, are limited to give the most effective ranges.
摘要:
An image carrier deterioration degree evaluating apparatus for evaluating a degree of deterioration of an image carrier of an image forming apparatus, the image carrier deterioration degree evaluating apparatus including: an image deletion detecting unit that detects image deletion by obtaining latent image information written on the image carrier; an image deletion reducing unit that performs a process of reducing image deletion when the image deletion detecting unit detects image deletion, and an image carrier deterioration degree evaluating unit that drives the image deletion detecting unit and the image deletion reducing unit alternately one or more times each, and evaluates a degree of deterioration of the image carrier by using the latent image information obtained one or more times by the image deletion detecting unit.
摘要:
An image forming apparatus having an image bearing member, a charger to charge the surface of the image bearing member, an irradiator to irradiate the image bearing member to form the latent image, a developing device to develop the latent electrostatic image with toner to obtain a visible image, a transfer device to transfer the visible image to a transfer medium by a transfer bias applied to a transfer area between the image bearing member and the transfer member, and a voltage detector to measure a first surface voltage and a second surface voltage under different conditions, and a life expectancy identification device to identify whether or when the expected working life of the image bearing member has come to the end based on a comparison of the first surface voltage and the second surface voltage.
摘要:
The present invention provides an electrophotographic photoconductor capable of reducing latent electrostatic image stability defects caused by adhesion/adsorption of an electric discharge product formed by a charger in an image forming process, degradation of charge transportability and cleaning defects caused when removing a residual toner. The electrophotographic photoconductor has a conductive substrate, and a photosensitive layer which contains at least a binder, a charge generating material and a charge transporting material and is formed on the substrate, wherein the photosensitive layer contains an injection material composed of at least any one of one wax selected from paraffin waxes, Fisher-Tropsh waxes, polyolefin waxes and a polyorganosiloxane compound in an area from the surface of the photosensitive layer to 50% of the thickness thereof in the thickness direction of the electrophotographic photoconductor, and the content of the injection material is 3% by mass or more to the content of the binder.