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7735950 Printing apparatus and printing medium conveying apparatus  
A printing apparatus that conveys a printing medium placed on a surface of a conveyor belt, and performs printing to the printing medium by ejecting a liquid from a liquid ejection head, the...
7691468 Method and means for producing a magnetically induced design in a coating containing magnetic particles  
The invention discloses a device and a method for transferring a predeterminable, high-resolution magnetic design onto a document printed with a magnetic ink, in particular a magnetic optically...
5978001 Magnetic brush development roller  
A magnetic brush development roller assembly for an electrographic printer includes a cylindrical multipole magnet mounted for rotation about a cylindrical axis; and a conductive non-magnetic...
5699088 Recording head for a magnetic printer  
A recording head for a magnetic printer utilizes a so-called magnetography, in which a magnetic latent image formed on a magnetic recording medium is developed and actualized by a magnetic toner...
5317340 Method and device for erasing and writing on magnetic recording media suitable for direct viewing  
Method and devices for erasing and writing on magnetic particle oriented media are described. Erasure is caused by moving a magnetic field which enters and exits the media at a finite angle but...
5279224 Charge imaging system for a printing press  
An imaging system (12) for a printing press (10) having an imaging cylinder (44) having an outer surface (46) mobile to movement of charged particles, a device (52) for inducing a charge on the...
5264685 Coding device for magnetic cards  
A device for coding key cards for magnetically operating locks and the incorporating of such a device which is as simple as possible plus the corresponding key cards in an entrance control system....
5196859 Picture processing system  
A picture processing system for printing an image recorded on a negative film onto a photographic paper having a magnetic recording portion includes a write head for writing information...
5095317 Thermomagnetic imprinting apparatus and method  
An imprinting apparatus having application means for applying thermal energy to a recording portion of thermoplastic magnetic ink and generation means for simultaneously generating magnetic...
4935403 Recording head and its application  
A recording head comprises a magnetically permeable substrate, a superconducting film formed on one side of said substrate, a means for producing a uniform magnetic field sustantially...
4901087 Device for forming latent magnetic images on the recording element of a magnetographic printer  
The invention relates to a device for forming latent magnetic images on the recording element of a magnetographic printer.A plurality of magnetic heads (such as Y1, X1, Y2, and so forth), of...
4813007 External magnetic field generating device  
An external magnetic field generating device includes a pole piece mounted on a face of a magnetic plate, and a coil which is in contact with the face of the magnetic plate, the coil being wound...
4750003 Magnetic display unit  
A magnetic display unit in which a magnetic panel encloses a colored liquid in which magnetic particles are dispersed. A recording head moves over the panel and has a plurality of electromagnets...
4750004 Magnetic head array  
A magnetic head array for use in a magnetographic printer, in which local magnetic fields are generated by U-shaped wires each having a complete magnetic yoke formed by bending a foil made up of...
4745418 Reusable developing powder composition  
A non-fusible, monocomponent toner is described which comprises an organic resin having a high fusion point, a magnetically responsive material admixed therewith, and an electrically conductive...
4739342 Crossed-element magnetographic print head  
A magnetographic printing head comprises an array of crossed elongated bar-shaped print elements, each of which is individually magnetizable by electrical conductors wound about respective ones of...
4736210 Magnetic transducer including a plurality of heads and method for producing the magnetic transducer  
The invention relates to a method for producing a magnetic transducer including a plurality of heads and a transducer produced thereby. The method comprises placing a magnetic core (such as 17-2)...
4725850 Electromagnetic head with separate addressability resolution and imaging resolution functions  
An electromagnetic printhead is fabricated with a common flux returning backplate and an array of writing elements extending from the common backplate. The writing elements consist of large...
4701767 Magnetic recording head and method for manufacturing  
A method is disclosed which manufactures a recording head adapted to be moved relative to a recording medium, which is comprised of a conductive substrate and dielectric layer formed on the...
4646107 XY plotter apparatus  
An XY plotter apparatus includes a magnetic panel, a writing tool for applying a magnetic field, a writing tool drive and an erasing magnetic field generator. The writing tool consists of an...
4554557 Thermomagnetic printer  
A thermomagnetic printer includes a recording unit for storing a latent image in which there are provided a magnetic recording layer providing thermomagnetic effect when placed in magnetic field...
4536773 Magnetic recording apparatus with adjustable line density  
Apparatus for forming latent images in a magnetic printing apparatus provides a recording head having a plurality of channels. Among the plurality of channels, some channels are selected and set...
4525724 Magnetic recording head array for longitudinal magnetic printing with staggered head arrangement and clustered wiring  
A magnetic recording head array for printing onto a transfer magnetic recording medium which prints magnetic material onto a medium such as paper includes staggered arrays of magnetic print heads....
4525723 Magnetic recording head  
A thin film magnetic recording head and process for fabricating it is disclosed. The magnetic recording head has a core with a gap the same length as the width of an original document to be...
4525725 Method and apparatus for forming magnetic latent images  
A method and apparatus for forming latent images in which all channel heads are used in different line density scanning. In the case of a multi-channel head having at least three channels which...
4520409 Thermal and magnetic recording head  
A combination thermal and magnetic recording head is advantageously designed such that the heat generating resistor elements forming the thermal device are incorporated with the magnetic head...
4518970 Method for forming a latent image and apparatus for carrying out the same  
A magnetic printing apparatus provides a recording head having a plurality of channels with different tracking widths. A locus is described by a preceding channel having a wide tracking width,...
4513326 Magnetic printing machine employing a multi-channel recording head with minimal cross-talk with secondary scanning head movement  
In a magnetic duplicator using a magnetic printing machine, reflected light from a document is converted into an electrical video signal by a photoelectric converting element, and the electrical...
4503440 Thin-film magnetic writing head with anti-saturation back-gap layer  
Apparatus for producing a magnetic image in a magnetic image storage medium. The apparatus includes a thin-film magnetic web with a pole-defining face and a second thin-film blanket magnetically...
4503439 Thin-film, compliant, non-pressure-point-telegraphing, electromagnetic read/write head structure  
A thin-film, floppy and compliant, electromagnetic, read/write head structure which is adapted to be pressed against a magnetic imaging medium during reading and writing. Individual heads and...
4496962 High resolution magnetic printing head  
In order to increase the resolution and visual quality of the image produced by the transverse magnetic imaging technique, a magnetic printing head has an odd number of stacked elongated comb-type...
4494125 Differential-permeability field-concentrating magnetic read/write head  
A magnetic-image read/write head including inner and outer, substantially co-planar, symmetrically arranged pole portions. In one embodiment, the head is disclosed with the inner pole portion...
4470051 Multiple head magnetic recording array  
Apparatus for producing a preselected final image in a travelling magnetic image-storage medium, which image is formed of an arrangement of individual magnetic image units and line segments formed...
4442441 Magnetic recording device  
A device for recording predetermined magnetization patterns on a magnetic recording medium such as for use in a copying machine. The magnetic medium is first magnetized with a uniform...
4415906 Magnetic recording heads  
There is provided improvements in magnetic recording head arrangements, such as may employ multiplexing, which provide substantially higher speeds of recording and require fewer components. The...
4414554 Magnetic imaging apparatus  
Apparatus for producing in a magnetic image-storage medium a high-resolution, smooth-edge-defining magnetic image. Such is accomplished through the cooperative action of two, opposite-polarity,...
4380768 Magnetic printer and printhead  
A magnetic print module for use as a printhead of a magnetic printing system. The print module comprises a base having a matrix of integral protrusions extending upward from the base and a...
4379302 Powdered magnetic ink printing devices  
The invention relates to a printing device comprising: a travelling surface, for example the surface of a drum, driven in rotation by the action of first motor means, said travelling surface...
4370661 Easily assembled transverse magnetic printing head  
An easily assembled transverse magnetic printing head and method for making same are disclosed for use in a coincident current, matrix-driven, transverse printing head. In accordance with one...
4342039 High resolution magnetic printing head  
In order to achieve higher resolution in printed data, separate magnetic printing head sub-assemblies are adjacently disposed with respect to each other. Each sub-assembly includes a high...
4339760 Magnetic printing head having a high signal-to-noise ratio  
The signal-to-noise ratio as measured by the ratio of the full select magnetic field levels to the half select magnetic field levels, is improved in a coincident current magnetic printing head by...
4328503 High resolution magnetic printing head  
A high resolution magnetic printing head comprises a pair of interlaced printed circuit board structures. Each printed circuit board structure comprises a two or three layer assembly in which each...
4323933 Device for erasing a record carrier recorded by magnetic fields in visually readable form  
The record carrier allows visually readable recordings of measured values. A measuring device associated with said record carrier is driven by a drive device. The erasing device comprises at least...
4314257 Thermomagnetic recording apparatus  
A thermomagnetic recording apparatus, for example, facsimile receiver wherein the surface of a magnetic drum which is uniformly coated with a magnetic material is uniformly magnetized, the...
4291314 Transverse magnetic printing head  
A high resolution magnetic printing head possesses a comb-like magnetically permeable member formed by electrodeposition. A magnetic printing head comprising a substrate with an elongated gap...
4257051 Apparatus and method for driving a magnetic print head  
Coincident current windings on a magnetic print head are driven in a special sequence to minimize undesired spurious printing effects otherwise caused by undesirable concentrations of magnetic...
4176362 High density magnetic image recording head  
A head for magnetizing a broad magnetic tape or the like to form magnetic images representing lines of high quality characters or other images, including a large number of closely-spaced recorder...
4175265 Toner transfer system  
Apparatus for printing images on paper or other print medium by transferring toner on a magnetic tape onto the paper, using a voltage pulse applied between electrodes located respectively behind...
4135195 Magnetographic printing apparatus  
Magnetographic printing apparatus having scan magnetization of the recording surface. A bubble plate is provided adjacent the recording surface upon which bubble magnetic domains are propagated in...
4135194 Rotary head magnetic recording at fixed wavelength with varying speeds  
A variable speed, fixed wavelength magnetic imaging system is provided by generating a signal having a frequency proportional to the speed of a rotational recording member and using that signal to...

Matches 1 - 50 out of 102 1 2 3 >