36results about How to "Reduce electrification" patented technology

The invention is to provide an organic photoconductive material capable of realizing electrophotographic photoreceptors of high reliability that have high charge potential, high sensitivity, good responsiveness to light and good durability, of which the characteristics do not lower even when they are driven at low temperatures or at high speed and even when they are exposed to light, and to provide an electrophotographic photoreceptor that comprises the material and an image-forming apparatus. An organic photoconductive material of the following general formula (1), for example, an enamine compound of the following structural formula (1-1) is produced. Using the organic photoconductive material for the charge-transporting substance (13) to be in a photosensitive layer (14) on a conductive support (11), an electrophotographic photoreceptor (1) is fabricated, and this is mounted on an image-forming apparatus.

An image forming apparatus having excellent chargeability, sensitivity and light responsivity of an electrophotographic photoconductor and capable of forming images of high quality and high resolution at a high speed in various circumstances, is provided. An electrophotographic photoconductor having a photosensitive layer containing the enamine compound represented by the following general formula (1), for example, the enamine compound represented by the following structural formula (1-1) as a charge transportation substance is mounted to an image forming apparatus and the volume average particle size of the toner contained in a developer 50 housed in a developing device 33 is set to a size from 4 to 7 mu.

The present invention provides an intermediate transfer belt, wherein: the intermediate transfer belt is made from a resin material comprising a carbon black in a dispersed state; an absolute value of a difference between a common logarithm value of surface resistivity 10 seconds after voltage application and a common logarithm value of the surface resistivity 30 milliseconds after voltage application is about 0.2 ((Log Ω / □) or less; and a Young's modulus thereof is about 3,500 MPa or more. The intermediate transfer belt is preferably formed by a process comprising: dispersing the carbon black in a polyamide acid solution to prepare a dispersant; developing the dispersant in a ring-like shape to form a developing layer; drying the developing layer to make a film to mold into a belt shape to form a molded article; and heat-treating the molded article to convert polyamide acid into imide.

An electrophotographic photoconductor, comprising: a conductive support; and a photosensitive layer provided on the conductive support and containing a charge generation material and a charge transport material, the photosensitive layer containing, as the charge transport material, a compound represented by the following general formula (I): wherein Ar1 represents an optionally substituted arylene or bivalent heterocyclic group; Ar2s, which may be the same or different, each represent a hydrogen atom or an optionally substituted alkyl, aralkyl, aryl or monovalent heterocyclic group; R1 represents an optionally substituted alkyl group; R2s each represent a hydrogen atom or an optionally substituted alkyl group; R3 and R4s, which may be the same or different, each represent a hydrogen atom or an optionally substituted alkyl or alkoxy group; and n is 0 or 1.

The invention belongs to the field of metal powder coatings, and in particular relates to a metal powder coating for enhancing a flash effect. The metal powder coating for enhancing the flash effect comprises an epoxy resin particle system containing epoxy resin, a correspondingly adaptive curing agent A and flash metal pigment, and a fluorocarbon resin particle system containing fluorocarbon resin and an adaptive curing agent B. The weight part ratio of the epoxy resin particle system to the fluorocarbon resin particle system is (6-4):(4-6). According to the metal powder coating for enhancing the flash effect disclosed by the invention, thick aluminium-silver powder is successively bonded into an epoxy resin layer by using a binding process, so that the thick aluminium-silver powder is deposited in the bottom layer of a coating together with the epoxy resin layer in the curing process and cannot float in the surface layer of the coating; and a transparent fluorocarbon resin layer floating to the upper layer plays a role of protecting oxidative resistance of flash metal powder.

A developing apparatus is provided in which a replenishment developer when replenished has been electrified to a sufficient extent and can immediately produce an effect of replenishment, with a small consumption of a carrier. In an developing apparatus 100 of the present invention, by means of a first and a second agitation and conveyance screw 21, 22 arranged in an upper space 13 and a lower space 14, respectively, a first two-component developer LT stored in the spaces is agitated and conveyed, so that it is supplied to a developing roller 20 so as to perform development processing of an electrostatic latent image on a photosensitive member. This developing apparatus replenishes a second two-component developer HT stored in a cartridge 30 into a first two-component developer LT in the spaces in an appropriate manner in accordance with the progress of the development process, so that a component composition of the first two-component developer can be kept within a prescribed range. In this case, amounts of electrification Q1, Q2 of the first and second two-component developers are set to be Q2=Q1×A (A=0.6−1.5) when the second two-component developer is readjusted to the same state of its toner concentration as that of the first two-component developer.

The invention relates to the JP cabinet safety protection technology field and particularly relates to a JP cabinet electric leakage alarm device. The JP cabinet electric leakage alarm device comprises a JP cabinet body and a JP cabinet door, wherein an inner chamber back side wall of the JP cabinet body is provided with multiple connection rods, the connection rods comprises plastic foundations, thread metal clamping rods and metal wire coils, and a top end outer side of the JP cabinet body is embedded with a small power alarm device. A metal mounting board is utilized to conveniently a mount circuit board or an electric appliance part, safety accidents caused by direct electrical conduction between the circuit board or the electric appliance part and a casing of the JP cabinet body are reduced through the plastic foundations, mounting, dismounting and fixing of the metal mounting board are conveniently realized through the thread metal clamping rods and fixing through holes, the small power alarm device is conveniently conducted through the metal wire coils and metal wires, starting the small power device is facilitated during electric leakage, workers can be prompted, and safety accident generation probability is reduced.

An object of the invention is to provide a fixation member which has an unfixed toner fixation function and ensures high releasability, low chargeability, and high friction. The fixation member has anelastic layer 12, and a release layer 13 on the external surface of the elastic layer 12, wherein the release layer 13 is formed of a fluororesin tube having low chargeability and a percent dielectric relaxation of 15% or higher.

An air filter filter material (1), comprising a substrate layer (2) and a chargeable fine fiber layer (3), the fine fiber layer (3) comprising a hindered phenolic light stabilizer and benzotri Polymer material of azole light stabilizer. The volume resistivity of polymer materials is 10 16 Ωcm or more, and the dielectric loss tangent value of the polymer material is 0.001 or less. When X is the weight of the hindered phenol-based light stabilizer and Y is the weight of the benzotriazole-based light stabilizer, the relationship of 0<(Y / X)≦1.25 is satisfied.

PROBLEM TO BE SOLVED: To easily reduce or prevent electrostatic charge. SOLUTION: A motor includes a cover member 14 formed by a conductive material, a bearing part, a shaft, a rotor magnet rotating with the shaft, an annular stator facing the rotor magnet in the radial direction in the cover member, a circuit board 32 arranged perpendicular to a central axis J1 in the cover member, and an electric power line 431 and a ground line 432 connecting to the circuit board. The circuit board includes a conductive pattern 41 and an electronic component mounted on the conductive pattern, and the conductive pattern includes a driving circuit pattern 411 supplying electric power from the electric power line to the stator, a ground pattern 412 to which the ground line is connected, and a cover antistatic pattern 413 which is located closer to the cover member than the driving circuit pattern and the ground pattern or contacts with the cover member. The circuit board includes a resistance electrically connecting the ground pattern with the cover antistatic pattern. COPYRIGHT: (C)2012,JPO&INPIT

The present invention relates to an image forming apparatus including a plurality of image forming units, an intermediate transfer belt having an elastic layer, a plurality of primary transfer members, a proximity and separation mechanism, a secondary transfer member, a driving device, and a voltage applying device. and control department. The close-to-separation mechanism can switch between a full-color pressing state and a full-color separation state, wherein, the full-color pressing state is that all the primary transfer members are pressure-bonded to the image carrier through an intermediate transfer belt; the full-color separation state is It is to separate all the primary transfer members from the intermediate transfer belt. The control unit can execute the friction coefficient reduction mode after the image carrier and the intermediate transfer belt are driven from the full-color separation state to the full-color pressing state when the power is turned on for the first time. , the toner is discharged from the developing device to the image carrier to reduce the surface friction coefficient of the image carrier and the intermediate transfer belt.

The invention provided a development roller development device, image forming apparatus, and method of manufacturing development roller can realize well development for a long time by inhibiting reduce of the depth of the convex-concave part after forming images for a long time. The development roller at least comprises a base unit (25a) a base recess (29a',29b') and a base projection (30') that are formed in a predetermined area of a circumference surface of the base unit; and a surface layer (25b) formed on the circumference surface of the base unit (25a) and having a recess (29a,29b) and aprojection (30). The surface hardness of the projection (30) is larger that the surface hardness of the recess (29a,29b).

The present invention provides a carrier for developing an electrostatic latent image and a two-component developer with improved characteristics. The carrier for developing an electrostatic latent image of the present invention is composed of carrier core particles including a binder resin and magnet particles, and a shell layer covering the carrier core particles. The acid value of the binder resin is equal to or greater than a predetermined value, and resins having carboxyl groups are included. The shell layer is composed of at least one resin selected from melamine resin and urea-formaldehyde resin. By using the carrier for developing an electrostatic latent image of the present invention, it is possible to reduce the load on the stirring unit in the developing unit included in the image forming apparatus. In addition, when the carrier for developing an electrostatic latent image of the present invention is used as a two-component developer together with a toner, it is possible to suppress the decline in the ability of the carrier to charge the toner and the reverse charge modulation during image formation for a long period of time. Occurrence of toner scattering caused by generation of toner.

The invention belongs to the field of powder coating and particularly relates to power coating with an effect of color changing along with an angle. The powder coating with the effect of color changing along with the angle comprises epoxy resin, an epoxy resin particle system corresponding to a matched curing agent A and color changing pigments and a fluorocarbon resin particle system with fluorocarbon resin and a matched curing agent B. The parts by weight ratio of the epoxy resin particle system and the fluorocarbon resin particle system is 7-3:3-7. According to the powder coating, the color changing pigments are adhered in an epoxy resin layer successfully through bonding technology. In the process of curing, the color changing pigments are sunk into the coating bottom instead of floating to the surface of the coating along with the epoxy resin. A transparent fluorocarbon resin layer floating to the upper layer has the function of protecting the color changing pigments so that the color changing pigments are antioxidative. A structure of the color changing pigments is not damaged in the whole process and the color changing effect is thoroughly played.

The discharging brush 1 includes a conductive brush unit 11 and a grounding wire 15 connecting the brush unit 11 with a grounding point via a resistor 14. In a discharging device 100, the discharging brush 1 is installed at a conveyance path for conveying a display panel 2, in such a manner that the brush unit 11 is in sliding contact with a terminal 24 formed on a peripheral region of the display panel 2 conveyed along the conveyance path. For example, the resistor 14 has a resistance value equal to or greater than 1 MΩ and equal to or less than 10 MΩ.

A rubbing cloth used for rubbing to control the alignment of liquid crystal molecules. The rubbing cloth comprises; the pile portion containing fibers comprising a cellulose acetate. The fibers comprising a cellulose acetate may be textured filament yarns provided with crimps. The cellulose acetate may have an acetylation degree of 45% or more. The rubbing cloth can have properties of great alignment force, low frictional electrification, and high wear resistance together.

The invention discloses a comprehensive test platform and a test method for transformer oil-paper insulation materials, including a main oil tank and an oil conservator; the middle parts of the left and right side plates of the main oil tank are respectively provided with oil flow valves facing each other, and the bottom is provided with oil filling and discharging valves; The oil conservator is a vertical cylinder, which is arranged above the side of the main oil tank, and its bottom is connected to the top of the main oil tank through a connecting pipe, and a pressure valve is arranged on the top, and a piston pad is arranged inside to isolate the oil surface and the air. A limit ring is arranged under the piston pad, and an air extraction valve is arranged at the limit ring. The invention can apply pressure to the oil through the oil conservator with piston structure, so as to study various electrical properties of the oil paper under different pressures; at the same time, it can also control the oil flow velocity in the box through the oil flow valve and an external oil pump, so as to study the effect of the flow velocity on the oil paper. The influence of electrical properties; By connecting the implanted heating device, the influence of temperature on the electrical properties of oil-paper was studied.