Abstract: A carrier comprised of a core and thereover a polymer generated from the reaction of a component containing amine groups and a component containing epoxy groups.

Abstract: A method and apparatus for sustaining optimum fluid entrainment conditions in a contaminant extraction well is disclosed. More specifically, the present invention includes a central controller which communicates with a pressure detector and an aspiration control source that are connected to a contaminant extraction well. The central controller causes aspiration air to flow into or out of the extraction well based upon the vacuum level that has been measured by the pressure detector. This system enables the vacuum to be maintained at a predetermined level, and allows the well to operate as changes occur in the groundwater content of the area in which the well is operating.

Abstract: There is disclosed a process for forming a photosensitive imaging member including positioning a substrate and an electrode in an electrolytic solution to form a galvanic cell and electrochemically graining the substrate surface in the absence of an external power source to provide a substrate surface roughness sufficient to substantially suppress the formation of a pattern of light and dark interference fringes upon exposure of the photosensitive imaging member to a light source.

Abstract: A preheater is placed between a supply tray station and a print zone of an ink printer. Power to the preheater is varied so that the preheater is heated to a fist relatively high temperature during the time that the recording medium is advanced from the supply station to the print zone. When the recording medium enters the print zone, the medium is moved at a slower indexing speed, and the power to the preheater is reduced to a second level. The result is a more uniform application of preheat to the recording medium.

Abstract: An optical scanning apparatus for simultaneously scanning a plurality of light beams. In the apparatus, four light beams emitted from two light emitting portions are allowed to sequentially pass through collimator lenses and cylindrical lenses. Then, a beam splitter synthesizes the light beams so as to be emitted to a mirror surface of a polygonal mirror. Then, the light beams are deflected when the polygonal mirror is rotated so as to be allowed to pass through an imaging lens. Then, the light beams scan and expose (main-scan) the surface of a photosensitive member. When the photosensitive member is rotated by a predetermined quantity, sub-scanning is performed. When the above-mentioned main and sub-scanning are repeated, a latent image for one page is formed on the photosensitive member. When the above-mentioned sequential processes are performed, interlaced scanning is performed under predetermined conditions.

Abstract: An apparatus and method provide improved custom color capabilities. A pre-mixed custom color toner having a high solids content of approximately 10-50% is used to generate a custom color toner layer to develop an electrostatic latent image. In contrast to conventional liquid developing systems, a complex control system is not needed to achieve consistent and stable color toner images using the invention. A custom color toner layer assembly can also be formed and used to develop an electrostatic latent image. Because the color and density of the toner layer assembly is formed before image development, color correction steps can be avoided.

Abstract: A process for fabricating electrophotographic imaging members comprising providing a substrate with an exposed surface, simultaneously applying, from a coating die, two wet coatings to the surface, the wet coatings comprising a first coating in contact with the surface, the first coating comprising photoconductive particles dispersed in a solution of a film forming binder and a predetermined amount of solvent for the binder and a second coating in contact with the first coating, the second coating comprising a solution of a charge transporting small molecule and a film forming binder dissolved in a predetermined amount of solvent for the transport molecule and the binder, drying the two wet coatings to remove substantially all of the solvents to form a dry first coating having a thickness between about 0.

Abstract: A developer unit for developing a latent image recorded on an image receiving member with marking particles, to form a developed image. A donor member is spaced from the image receiving member and adapted to transport marking particles to a development zone adjacent the image receiving member. An electrode is positioned in the development zone between the image receiving member and the donor member. A voltage supply is provided for electrically biasing the electrode during a developing operation with an alternating current bias to detach marking particles from the donor member, forming a cloud of marking particles in the development zone, and developing the latent image with marking particles from the cloud. The voltage supply periodically electrically biases the electrode during a cleaning operation with a direct current bias and with a alternating current bias so that toner is effectively removed from the wire. The bias levels are chosen to reduce field induced redeposition of right or wrong sign toner.

Abstract: A printing device is requested to generate a calibration test print. The printer generates a plurality of color patches and identification data which are put in hard copy form by a marker. The identification data includes data such as device identifiers, calibration print identifiers, and calibration statistics for the printing device. The hard copy calibration print is scanned and is transmitted to a calibration server. The calibration server interprets the coded data and determines the originating device, the calibration pattern printed, and an optimal color pattern based on the identification data. The color pattern printed is then compared to the optimal color pattern and their differences are determined. A color correction table is generated based on the differences and transmitted to the network address of the originating printer based on the identification data. The identification data provides for automatic recalibration of printing devices on a network.

Abstract: Electrorheological based acoustic droplet ejectors and their applications in acoustic print heads are described. The droplet ejectors include an acoustic transducer which generates acoustic energy into a fluid well holding an electrorheological fluid such that the fluid's free surface is adjacent electric field electrodes. The acoustic energy is such that droplets are ejected from the fluid as long as a lower voltage is applied to the electrodes. However, when a higher voltage is applied to the field electrodes, the electrodes produce an electric field through the fluid which causes the viscosity of the fluid to increase sufficiently that droplet ejection is prevented. When used in a print head, the electrorheological fluid is an ink. Further, many (perhaps thousands) of individual droplet ejectors are formed in the print head. By controlling droplet ejection from the individual print heads, an image can be produced on a recording medium.

Abstract: A magnetic nanocomposite composition comprising from about 0.001 to about 60 weight percent of nanocrystalline particles of Fe.sub.3 O.sub.4, and from about 40 to about 99.999 weight percent of a resin.

Abstract: A laser beam that is emitted from a light source is reflected by a first mirror, and then incident on each facet of a polygon mirror. The laser beam is moved for scanning in the fast scan direction by the facet, and reflected again by the first mirror. Since the laser beam is reflected two times by the first mirror, the first mirror may be located close to the polygon mirror, and hence the optical scanning device may be reduced in the size thereof. The incident angle of the incident light beam projected onto the polygon mirror and the reflecting angle of the reflecting light beam reflected by the polygon mirror, may be small. This fact leads to little curving of the scanning line.

Abstract: An ink jet recording ink including water, a water-soluble organic solvent, and at least one dye having at least one carboxyl group in the form of a free acid, wherein at least one compound selected form secondary or tertiary amine compounds represented by the following general formula (I) and at least one compound selected from the alkali metal hydroxides are contained and the pH value thereof is from 8.5 to 12: ##STR1## wherein one or two of R.sup.1, R.sup.2, and R.sup.3 are an alkyl group having 1 to 5 carbon atoms in the alkyl chain and substituted by a substituent selected from a carboxyl group, a sulfonic group, an alkali metal salt of a carboxyl group, and an alkali metal salt of a sulfonic group; and the remainder is a group selected from a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, and a substituted alkyl group having 1 to 5 carbon atoms in the alkyl chain and substituted by a hydroxyl group or carbamoyl group is disclosed.

Abstract: Urethane resins are made by reacting selected nucleophiles, including alcohols, with an isocyanate. The order of addition of the isocyanate and the different nucleophiles can tailor the distribution of mixed urethane molecules in the final resin product. The final resin product can be colored or uncolored and include a toughening agent. The isocyanate-derived resin materials are useful as ingredients as phase change ink carrier compositions used to make phase change ink jet inks.