Abstract: A toner comprised of polymer and titanium oxide dihydroxide of the formula --O--Ti(OH).sub.2 wherein Ti is titanium.

Abstract: An electrostatographic reproduction machine is provided for reliably producing high quality toner particle images of original images on sheet substrates.

Abstract: Disclosed is a process for preparing copolymers which comprises, in the order stated: (1) adding monomers containing unsaturated carbon-to-carbon bonds, a first polymerization initiator, a second polymerization initiator, and a solvent to a reaction vessel; (2) purging the resulting solution with an inert gas; (3) sealing the reaction vessel and pressurizing it by addition of an inert gas to a pressure of from about 20 to about 600 kilopascals over ambient atmospheric pressure; (4) maintaining the temperature within the pressurized reaction vessel at a temperature of from about 50 to about 100.degree. C. for a period of from about 60 to about 300 minutes; (5) thereafter maintaining the temperature within the pressurized reaction vessel at a temperature of from about 80 to about 115.degree. C.

Abstract: Disclosed is a process which comprises incorporating into an ink jet printing apparatus an ink composition which comprises water, a colorant, and a polymer of the formula ##STR1## wherein m, n, x, and y are each integers representing the number of repeat monomer units, and wherein the ratio of x:y is from about 10:90 to about 90:10, and causing droplets of the ink to be ejected in an imagewise pattern onto a recording sheet.

Abstract: Disclosed is an ink composition comprising water, a colorant, and an undecylenoyl sarcosinate salt.

Abstract: Disclosed is a composition comprising a polymer with a weight average molecular weight of from about 1,000 to about 100,000, said polymer containing at least some monomer repeat units with a first, photosensitivity-imparting substituent which enables crosslinking or chain extension of the polymer upon exposure to actinic radiation, said polymer also containing a second, thermal sensitivity-imparting substituent which enables further crosslinking or chain extension of the polymer upon exposure to temperatures of about 140.degree. C.

Abstract: A method for manufacturing a magnetic roll for use in an electrophotographic printing machine of the type having an electrostatic latent image recorded on a photoconductive member is provided. The method includes the steps of placing a shaft in a mold cavity and molding a core in the mold cavity with the shaft in the cavity. The core defines a pocket on the periphery of the core. The method further includes the step of attaching a magnet to the pocket.

Abstract: A carrier for electrophotography having a resin coating layer containing a conductive powder having an aspect ratio of not less than 3 on the core material, in which the dynamic electric resistance of the core material in a magnetic brush state under an electric field of 10.sup.4 V/cm is not higher than 1 .OMEGA..cm, and the electric resistance of the resin coating layer is within a range of from 10 to 1.times.10.sup.8 .OMEGA..cm, and a developer for an electrostatic latent image using the carrier. An image forming method on which the developing process includes using the above-mentioned developer for an electrostatic latent image, whose development curve, expressed by a contrast potential and the developing toner quantity, has a saturation area, and applying the developing bias to the developer carrying member so that the developing toner quantity shows the saturation characteristic.

Abstract: A writing head suitable for use in an electrostatic marking device includes a plurality of first surface conductive pads permanently fixed to a first surface of the first head member and disposed in a lengthwise row, and a plurality of second surface conductive pads permanently fixed to the second surface of the first head member. Each second surface conductive pad is paired with one of the first surface conductive pads, and the pair of pads is electrically connected by way of a conductive via extending through the first head member. A plurality of conductors is disposed on the first head member in a substantially equally spaced and parallel relationship, with one end of each conductor being permanently connected to a respective one of the first surface conductive pads. The other end of each conductor, referred to as a nib, being exposed in at least one line at the first edge of the first surface and lying in a plane perpendicular to the first surface.

Abstract: An ink-jet image forming apparatus is formed from a plurality of nozzles which eject ink corresponding to image information, a plurality of cap members which cover the nozzles and an ink suction pump that is connected to the cap member which suctions ink in the cap member. The pump is formed by a cylinder formed from an interior space and two ink suction ports that go through to the interior space and a piston arranged as movable in this interior space. Each ink suction port is connected to a different cap member and the piston is moved between the two ink suction ports.

Abstract: An information processing method in which after various sorts of information such as voice, image, and moving picture are printed as embedding information on a printing medium such as paper, the embedding information is scanned to reproduce the embedding information in an optimum form thereof.

Abstract: Construction of fluid conduit systems in printed circuit boards or other dielectric laminate substrates is disclosed. The fluid conduits can be angled or curved to provide greater directional control of fluid flow. Conduits are created by lamination of a first laminate layer and a second laminate layer. The first laminate layer is composed of a dielectric base material impregnated with a resin, with a first aperture defined therethrough, while the second laminate layer has a second aperture. The second aperture is positioned with respect to the first aperture to only partially overlap, together defining an angled conduit. Fluid flow through the conduits can be controlled using microdevice valves.

Abstract: A process for the preparation of a toner composition includes (i) forming a resin latex dispersion of a resin in an aqueous ionic surfactant solution from a latex utilizing an ionic surfactant and optionally a nonionic surfactant; (ii) preparing a pigment dispersion in water of a pigment dispersed in water and a nonionic dispersant, and optionally an ionic surfactant of the same polarity as that employed in preparing the resin latex dispersion of step (i); (iii) blending at least a portion of the resin latex dispersion with the pigment dispersion, and optionally a wax dispersion, to form a resin-pigment blend; (iv) adding a portion of a counterionic coagulant in an aqueous solution to the resin-pigment blend, while continuously subjecting the mixture to high shear, to induce a homogeneous gel of the resin-pigment blend, wherein the amount of the counterionic coagulant added is 25 to 90% by weight of a total amount of counterionic coagulant to be added during the process; (v) heating the sheared gel at tempera

Abstract: An induction heated fusing apparatus having a dual function transformer assembly includes a pressure roller, an induction heatable fuser roller, an electrical circuit subassembly coupled to a primary transformer coil and connectable to an AC power supply source. The electrical circuit assembly includes a bridge circuit and a pair of transistors having their emitters connected to an output of a bridge circuit, their bases connected to opposite ends of an auxiliary conductive coil winding, and their collectors connected to opposite ends of a primary transformer coil, wherein the pair of transistors and the primary transformer coil are alternately driven by voltage changes across the auxiliary conductive coil winding.

Abstract: A location information system uses a positioning system, such as the civilian Navstar Global Positioning System (GPS), in combination with a distributed network. The location information system includes a radio transceiver for communicating to the distributed network and a GPS receiving system. The GPS receiving system receives a signal from the GPS and converts it into a coordinate entry. The coordinate entry is transmitted to the distributed network for retrieval of corresponding location specific information. The location specific information may reside on a web page. The coordinate entry may be incorporated into the web page address that supports the coordinate entry or linked to an existing web page associated with the coordinate entry. The web page and associated information is displayed. Bar code labels, infrared beacons and other labeling systems may also be used in the location information system in place of or in addition to the GPS receiving system to supply location identification information.

Abstract: Electrophotographic transfer paper having a coating layer provided on at least one surface of base paper and pigments and adhesive agents as main components, wherein resistivity (VR) and surface resistivity (SV) of electrophotographic transfer paper after the humidity has adjusted to 10.degree. C., 30% RH for 12 hours satisfy the expression Log(VR/SR).ltoreq.1.5. Using such electrophotographic transfer paper, occurrence of discharge mark and occurrence of density irregularity in a high-density image region are prevented to thereby make it possible to provide electrophotographic transfer paper excellent in fixing characteristic, nonshowthrough, partial deletion and generation of paper dust.

Abstract: The methods and systems for efficiently transferring images from an image bearing member include placing an overlayer over a toner layer after placing the toner layer over the image bearing member. The overlayer reduces the adhesiveness of the toner layer to the image bearing member and, therefore, promotes efficient transfer to another substrate without applying heat. The overlayer also may have a higher cohesiveness and combine with the toner layer to increase the effective cohesiveness of the toner image to increase the efficiency of the transfer of the toner image. Overlayer materials include, by way of non-limiting example, a clear toner layer or a clear fluid layer.

Abstract: An imaging system for effecting electrostatic printing of an image, wherein the imaging system includes at least one contact electrostatic printing engine operable in a novel fashion upon a copy substrate, for imaging and development of an electrostatic latent image representative of the image, and subsequently transfers the developed image to the copy substrate. A toner cake delivery apparatus provides a thin, uniform toner cake layer of high solids content to a suitable receiving member for subsequent pressure contact with the surface of a latent image bearing imaging member such that a developed image is created by separating and selectively transferring portions of the toner cake layer in correspondence with the image and non-image regions of the latent image.

Abstract: A vibration inducing grinding wheel for removing material from a workpiece is provided. The vibration inducing grinding wheel is for use in a grinding machine. The vibration inducing grinding wheel includes a generally cylindrically shaped body defining a cylindrical outer periphery thereof. At least one of the composition and the contour of the outer periphery is selected so as to provide a vibration to the grinding machine such that the straightness of the workpiece is thereby improved with respect to the straightness of the workpiece ground by a standard grinding wheel having a cylindrical outer periphery thereof, the contour and composition of the outer periphery of the standard grinding wheel being uniform.

Abstract: A "green" rapid recovery fusing apparatus is provided and a frame; a moveable heated fusing member, such as a rotatable heated fuser roller, mounted to the frame; a moveable pressure member, such as a rotatable pressure roller, mounted to the frame and forming a pressure fusing nip against the moveable heated fusing member; and a thermal loss preventing enclosure surrounding the heated fusing member and having low thermal conductivity walls including thermal insulating matter therein for reducing thermal loss from the heated fusing member, and for enabling rapid recovery of the heated fusing member from a standby energy saving temperature to a higher fusing temperature.